Furnace no 1 hi-res stock photography and images - Page 3

Hardware merchandising October-December 1910 . iTiliiTilnSiii ?OTMHni ifiiisadiftiiBtflii ttmm^mmWUiiSMmtMcumt SEMl-STEEL. 1ND. LAT They admit the largestTpossible outlet of heated air, and are no more expensive thanother makes Furnace-pipe manufacturers are now making their boxes to fit our styles. A quick-sellingandsatisfaction-giving line. It will pay you to handle these goods. »>-«*=••- •- , • 111^11 MufiirginrMTirTiTiitrfT .Hi nil m IWMKfliiTffiri t J 1 Tuttle & Bailey Mfg. Companyof Canada, Limited. -j Get full details. • ] Write for descriptive Catalogueto-day. Bridgeburg Ont. HARDW Stock Photo

RM2AJM0JA–Hardware merchandising October-December 1910 . iTiliiTilnSiii ?OTMHni ifiiisadiftiiBtflii ttmm^mmWUiiSMmtMcumt SEMl-STEEL. 1ND. LAT They admit the largestTpossible outlet of heated air, and are no more expensive thanother makes Furnace-pipe manufacturers are now making their boxes to fit our styles. A quick-sellingandsatisfaction-giving line. It will pay you to handle these goods. »>-«*=••- •- , • 111^11 MufiirginrMTirTiTiitrfT .Hi nil m IWMKfliiTffiri t J 1 Tuttle & Bailey Mfg. Companyof Canada, Limited. -j Get full details. • ] Write for descriptive Catalogueto-day. Bridgeburg Ont. HARDW

Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko Stock Photo

RM2HAHK16–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

Nature . A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 0/ Natiii c trusts the To the solid groundmind which builds Jo • ayt .—Wordsworth. No. IS37 Vol. 59] THURSDAY APRIL I 3. 1899. [P RICE Sixpence- Regist red as a Newspaper at th 5 Gene ral Post Offic • 1 All Rights are Reserved NEWTON & CO.S GARDEN SUN-DIALS.. OPTICIANS TO THE QUEEN &^ GOVERNMENT 3 FLEET STREET, LONDON. N EW GAS FURNACE (Holloways Patent) FOR CHEMISTS AND ASSAYERS. A THE NO. I VICTORIA HAND CAMERA. Stock Photo

RM2AN3B14–Nature . A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 0/ Natiii c trusts the To the solid groundmind which builds Jo • ayt .—Wordsworth. No. IS37 Vol. 59] THURSDAY APRIL I 3. 1899. [P RICE Sixpence- Regist red as a Newspaper at th 5 Gene ral Post Offic • 1 All Rights are Reserved NEWTON & CO.S GARDEN SUN-DIALS.. OPTICIANS TO THE QUEEN &^ GOVERNMENT 3 FLEET STREET, LONDON. N EW GAS FURNACE (Holloways Patent) FOR CHEMISTS AND ASSAYERS. A THE NO. I VICTORIA HAND CAMERA.

RM2HAHK12–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

Bulletin . or no iron sulphide and gave little troul)le inthe furnace. Early in 1908 the ore gave out, the body apparentlybeing cut off either from faulting or sliding. Operations were sus-pended till the fall of 1915, when prospecting began on a series of crop-pings north of and slightly higher than the old mine. There are 3deposits, more or less parallel but not overlapping, being in a sortof stepped relation extending northerly and separated by spaces of ^and 1/8 mile respectively. Up to December, 1915. about 1400 of newdrifts had been driven on two levels and crosscuts totaling over 400as Stock Photo

RM2AWDG47–Bulletin . or no iron sulphide and gave little troul)le inthe furnace. Early in 1908 the ore gave out, the body apparentlybeing cut off either from faulting or sliding. Operations were sus-pended till the fall of 1915, when prospecting began on a series of crop-pings north of and slightly higher than the old mine. There are 3deposits, more or less parallel but not overlapping, being in a sortof stepped relation extending northerly and separated by spaces of ^and 1/8 mile respectively. Up to December, 1915. about 1400 of newdrifts had been driven on two levels and crosscuts totaling over 400as

RM2HAHK17–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

Chemical engineering . M, 1 lliiT-llLXST I riPE STOVE. quite, always run with hot top, and the heat wasted in a hottop is usually enough to run the whole furnace if applied inthe right place—the tuyere zone. With the air blast heatedto 800° or goo° F. all sulphur is burned at and near the tuyeres.and thus the smelting is done by the aid, chiefly, of burning>ulphur instead of coke, as is the case in the cold-blast furnace. In iron smelting the air blast is heated by the waste gases,containing carbon monoxide. Little or no such gases escapefrom furnaces smelting the ores of copper, lead, silv Stock Photo

RM2AWW5FG–Chemical engineering . M, 1 lliiT-llLXST I riPE STOVE. quite, always run with hot top, and the heat wasted in a hottop is usually enough to run the whole furnace if applied inthe right place—the tuyere zone. With the air blast heatedto 800° or goo° F. all sulphur is burned at and near the tuyeres.and thus the smelting is done by the aid, chiefly, of burning>ulphur instead of coke, as is the case in the cold-blast furnace. In iron smelting the air blast is heated by the waste gases,containing carbon monoxide. Little or no such gases escapefrom furnaces smelting the ores of copper, lead, silv

RM2HAHK41–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

The Iron and steel magazine . ca, and 22.4 parts of lime willrequire 12 parts of silica. The points representing these figuresare now marked on the squared paper and joined by means ofa straight line, which, if produced, will, of course, pass throughthe origin. The same principle is carried out in respect to eachof the other bases, and thus a series of straight lines is obtained. Diagram No. 1 (Plate XIX) is prepared for the calculationof iron blast-furnace charges, in which as a rule only CaO, MgO,A1203, CaC03 and Si02 have to be considered. Diagram No. 2 (Plate XX) is for the calculation of Stock Photo

RM2AN1ME3–The Iron and steel magazine . ca, and 22.4 parts of lime willrequire 12 parts of silica. The points representing these figuresare now marked on the squared paper and joined by means ofa straight line, which, if produced, will, of course, pass throughthe origin. The same principle is carried out in respect to eachof the other bases, and thus a series of straight lines is obtained. Diagram No. 1 (Plate XIX) is prepared for the calculationof iron blast-furnace charges, in which as a rule only CaO, MgO,A1203, CaC03 and Si02 have to be considered. Diagram No. 2 (Plate XX) is for the calculation of

RM2HAHJXE–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

Engineering and Contracting . Segmenf ofCos+-SteelBase King Holes j^ unlessDiherwrse No^d Details of Slag Foundation for a Steel Stack. for the bottom ends of the anchor bolts over which werelaid old steel rails. Blast-furnace slag was then pouredover the foundation and adjacent ground, forming thefoundation for the chimney. A concrete capping was laidon top of the slag for the cast-steel base-ring of the chim-ney proper. August 23,Vol. X L V I. 1916No. 8 METHODS AND COST OF CONSTRUCTING AREINFORCED CONCRETE STOREHOUSE.* The structure as shown by Fig. 1 consists of a six-storymain building 100 Stock Photo

RM2ANH5MY–Engineering and Contracting . Segmenf ofCos+-SteelBase King Holes j^ unlessDiherwrse No^d Details of Slag Foundation for a Steel Stack. for the bottom ends of the anchor bolts over which werelaid old steel rails. Blast-furnace slag was then pouredover the foundation and adjacent ground, forming thefoundation for the chimney. A concrete capping was laidon top of the slag for the cast-steel base-ring of the chim-ney proper. August 23,Vol. X L V I. 1916No. 8 METHODS AND COST OF CONSTRUCTING AREINFORCED CONCRETE STOREHOUSE.* The structure as shown by Fig. 1 consists of a six-storymain building 100

RM2HAHJXH–Ostrava (Ostrau): Lower Vitkovice, former ironworks, Bolt Tower or screw tower is a superstructure of blast furnace No. 1, rock concert, in , Moravsko

. Ontario Sessional Papers, 1897-98, No.33-66. ast furnace and^orjj take samples of iron ores mined Bureau ^^ Ontario, under section 1 of theof Mines regulations to govern payments outof the Iron Mining Fund. Assays were madeand the results reported. In September Iwas sent to Coboconk to report on someproperties in the district. Three days werespent in examining difibrent lociitions and ingiving information. A complete set of sampleswere taken and assayed on my retuin. Fromthe results a report was prepaied and sent in.In September two half days were spent insetting up and taking down the exhib Stock Photo

RM2AG027D–. Ontario Sessional Papers, 1897-98, No.33-66. ast furnace and^orjj take samples of iron ores mined Bureau ^^ Ontario, under section 1 of theof Mines regulations to govern payments outof the Iron Mining Fund. Assays were madeand the results reported. In September Iwas sent to Coboconk to report on someproperties in the district. Three days werespent in examining difibrent lociitions and ingiving information. A complete set of sampleswere taken and assayed on my retuin. Fromthe results a report was prepaied and sent in.In September two half days were spent insetting up and taking down the exhib

Electrochemical and metallurgical industry . FIG. I.—GRAPHITOIDAL SILICON X 23.. FIG. 2.—SILICON CRVST.ALS X 34. •A paper presented before the American Electrochemical Society,Boston meeting . ^Report presented at Third International Congress of Chemists at Vienna. Stahl und Eisen, March 7 and 15, 1899. * Reprint of paper read at Institute of Civil Engineers. The Metal-lographist, vol. 1, pages 135, 136.*AnnaIes des Mines, October, 1900. Translation in American Manufacturers, Feb. 12, 1903, from ComptesRendus. Journal Iron and .Steel Institute, 1900, No. 11.Moissan, Electric Furnace, Eng. edit Stock Photo

RM2ANF6YG–Electrochemical and metallurgical industry . FIG. I.—GRAPHITOIDAL SILICON X 23.. FIG. 2.—SILICON CRVST.ALS X 34. •A paper presented before the American Electrochemical Society,Boston meeting . ^Report presented at Third International Congress of Chemists at Vienna. Stahl und Eisen, March 7 and 15, 1899. * Reprint of paper read at Institute of Civil Engineers. The Metal-lographist, vol. 1, pages 135, 136.*AnnaIes des Mines, October, 1900. Translation in American Manufacturers, Feb. 12, 1903, from ComptesRendus. Journal Iron and .Steel Institute, 1900, No. 11.Moissan, Electric Furnace, Eng. edit

Electrochemical and metallurgical industry . FIG. 2.—SILICON CRVST.ALS X 34. •A paper presented before the American Electrochemical Society,Boston meeting . ^Report presented at Third International Congress of Chemists at Vienna. Stahl und Eisen, March 7 and 15, 1899. * Reprint of paper read at Institute of Civil Engineers. The Metal-lographist, vol. 1, pages 135, 136.*AnnaIes des Mines, October, 1900. Translation in American Manufacturers, Feb. 12, 1903, from ComptesRendus. Journal Iron and .Steel Institute, 1900, No. 11.Moissan, Electric Furnace, Eng. edition, page 69. I-LFCTR(^(^FII-MrcAT. Stock Photo

RM2ANF633–Electrochemical and metallurgical industry . FIG. 2.—SILICON CRVST.ALS X 34. •A paper presented before the American Electrochemical Society,Boston meeting . ^Report presented at Third International Congress of Chemists at Vienna. Stahl und Eisen, March 7 and 15, 1899. * Reprint of paper read at Institute of Civil Engineers. The Metal-lographist, vol. 1, pages 135, 136.*AnnaIes des Mines, October, 1900. Translation in American Manufacturers, Feb. 12, 1903, from ComptesRendus. Journal Iron and .Steel Institute, 1900, No. 11.Moissan, Electric Furnace, Eng. edition, page 69. I-LFCTR(^(^FII-MrcAT.

. The Utah Farmer : Devoted to Agriculture in the Rocky Mountain Region. rough-ly. No clinkers to lose you money.These ribs prevent ashes fromforming on the firepot and retard-ing heat radiation. The Caloricfirepot has 600 square inchesgreater radiation than the aver-age firepot. WARM A I ft 1 . t rffl Install It Easily in AnyHouse—Old or New Nothing to do but cut one hole for a register.By digging a small pit you can even put theCaloric Pipeless Furnace in a house that has nocellar. It will burn coal, coke or wood. Bringcity comforts to farm homes. Saves the laborof carrying fuel upstairs and Stock Photo

RM2AFPFAG–. The Utah Farmer : Devoted to Agriculture in the Rocky Mountain Region. rough-ly. No clinkers to lose you money.These ribs prevent ashes fromforming on the firepot and retard-ing heat radiation. The Caloricfirepot has 600 square inchesgreater radiation than the aver-age firepot. WARM A I ft 1 . t rffl Install It Easily in AnyHouse—Old or New Nothing to do but cut one hole for a register.By digging a small pit you can even put theCaloric Pipeless Furnace in a house that has nocellar. It will burn coal, coke or wood. Bringcity comforts to farm homes. Saves the laborof carrying fuel upstairs and

Gordon-Van Tine homes . Picture No. 1—The smallparts are carefully boxed upand labeled. The largerfixtures are carefully crated. Picture No. 2—We show here atypical installation of soil piping.Note there is nothing mysteriousin making a soil pipe joint. Picture No. 3 — Connect-ing up bath tub to the soilpipe, which is at the leftside of the picture. Picture No. 4 — Connect-ing up the range boiler tokitchen stove or furnace,whichever the case may be. Picture No. 5—After theets are put on the wallcloset tank, it is a veryplace the tank in position.. Maryland Set Porcelain enameled bath tubwith b Stock Photo

RM2AKTB57–Gordon-Van Tine homes . Picture No. 1—The smallparts are carefully boxed upand labeled. The largerfixtures are carefully crated. Picture No. 2—We show here atypical installation of soil piping.Note there is nothing mysteriousin making a soil pipe joint. Picture No. 3 — Connect-ing up bath tub to the soilpipe, which is at the leftside of the picture. Picture No. 4 — Connect-ing up the range boiler tokitchen stove or furnace,whichever the case may be. Picture No. 5—After theets are put on the wallcloset tank, it is a veryplace the tank in position.. Maryland Set Porcelain enameled bath tubwith b

. Transactions. only 11 by 8 feet. No material development was made until the Welsh processwas brought to Colorado, where Richard Pearce, as managerof the Argo works, near Denver, developed the furnace tomeet the requirements of a custom plant, under keen competi-tion with lead-silver smelting-plants, using blast-furnaces. His improvements are outlined in Fig. 1, elaborated by per-mission from E. D. Peterss excellent work,^ to which the readeris referred for further details. This figure shows that the fur-naces were in 1878, 9 ft. 8 in. by 15 ft. in hearth; and in 1894,16 by 35 ft., while the Stock Photo

RM2AFN6HW–. Transactions. only 11 by 8 feet. No material development was made until the Welsh processwas brought to Colorado, where Richard Pearce, as managerof the Argo works, near Denver, developed the furnace tomeet the requirements of a custom plant, under keen competi-tion with lead-silver smelting-plants, using blast-furnaces. His improvements are outlined in Fig. 1, elaborated by per-mission from E. D. Peterss excellent work,^ to which the readeris referred for further details. This figure shows that the fur-naces were in 1878, 9 ft. 8 in. by 15 ft. in hearth; and in 1894,16 by 35 ft., while the

Bulletin . B. TYPICAL FORMS OF CONES FUSED IN HYDROGEN IN THE MOLYBDENUM FURNACE.. C. TYPICAL FORMS OF CONES FUSED IN CARBON MONOXIDE IN THE NORTHRUP FURNACE. EXPERIMENTS WITH SEGER CONES. 43 vidual ash. No. 59 illustrates the typical form of bending of Segercones; No. 26 illustrates the type that fuses to a lump; No. 29 isrepresentative of the intumescing type; No. 7 is an ash which didnot soften at 1,500°. The color of the fused cones varied from a buff,or reddish brown, to a glossy black. The black cones were magnetic. MOLYBDENUM FURNACE, ATMOSPHERE OF HYDROGEN. Plate I, B, illustrates typi Stock Photo

RM2AJB8DE–Bulletin . B. TYPICAL FORMS OF CONES FUSED IN HYDROGEN IN THE MOLYBDENUM FURNACE.. C. TYPICAL FORMS OF CONES FUSED IN CARBON MONOXIDE IN THE NORTHRUP FURNACE. EXPERIMENTS WITH SEGER CONES. 43 vidual ash. No. 59 illustrates the typical form of bending of Segercones; No. 26 illustrates the type that fuses to a lump; No. 29 isrepresentative of the intumescing type; No. 7 is an ash which didnot soften at 1,500°. The color of the fused cones varied from a buff,or reddish brown, to a glossy black. The black cones were magnetic. MOLYBDENUM FURNACE, ATMOSPHERE OF HYDROGEN. Plate I, B, illustrates typi

. Carton Furnace for Hot Air and Combination. ne establish its superiority as a softcoal heater, but, in connection with these, this heater has an extremelylarge combustion chamber, a most vital point in burning soft coal fuel,on account of the large amount of gases and smoke generated. Theradiators are self-cleaning, and need no clean-out doors. The castingsare made solid; no bolts used. Seven Sizes, Brick Set. Designating Number, C Series. List Price,Castings,F. O. 15. , t. CoveringBars, Per Set,Net. Trench Plates, Per Set, Net. 1 liameter of Fire Pot, Inside. Inches. I liameterof Radiator Stock Photo

RM2AFNHBT–. Carton Furnace for Hot Air and Combination. ne establish its superiority as a softcoal heater, but, in connection with these, this heater has an extremelylarge combustion chamber, a most vital point in burning soft coal fuel,on account of the large amount of gases and smoke generated. Theradiators are self-cleaning, and need no clean-out doors. The castingsare made solid; no bolts used. Seven Sizes, Brick Set. Designating Number, C Series. List Price,Castings,F. O. 15. , t. CoveringBars, Per Set,Net. Trench Plates, Per Set, Net. 1 liameter of Fire Pot, Inside. Inches. I liameterof Radiator

. Coking of Illinois coal in Koppers type oven.. No. 1.—The coke was delivered by the con-veyor over an inclined-bar grizzly screen in the first station.This screen was about 5^ feet long, 4 feet wide, and consisted of1 ->£ inch bars spaced from i>^to iXinches. The oversize wasdelivered in the railroad cars and weighed as furnace coke. Theunder size delivered on a second belt conveyor was carried to asecond screening station, where it passed through an inclined,rotary, cylindrical screen, the first half of which consisted of %-inch square perforations, and the second half ij^-inch square Stock Photo

RM2AG92T1–. Coking of Illinois coal in Koppers type oven.. No. 1.—The coke was delivered by the con-veyor over an inclined-bar grizzly screen in the first station.This screen was about 5^ feet long, 4 feet wide, and consisted of1 ->£ inch bars spaced from i>^to iXinches. The oversize wasdelivered in the railroad cars and weighed as furnace coke. Theunder size delivered on a second belt conveyor was carried to asecond screening station, where it passed through an inclined,rotary, cylindrical screen, the first half of which consisted of %-inch square perforations, and the second half ij^-inch square

. Alloys of tungsten by diffusion. 27 Experiment 2. Furnace No. 3 Time 10 hours Temperature 1500° C. Etched HF Photomicrograph x 60 Fig. XXII, shows the microstructure of the alloy. The re-sults are practically the same as in Experiment 1.c. Nickel, tungsten, carbon. Experiment 1. Furnace No. 3 Time 2 hours Temperature .... 1600° C. Etched EF Photomicrograph • . x 100 The microstructure ofthis alloy is shown in Fig.XXIII. The dark lines in-dicate the separation of car-bon as free graphite from amatrix of a tungsten-nickelalloy. Fig. XXIII. 1^ Stock Photo

RM2AGE67R–. Alloys of tungsten by diffusion. 27 Experiment 2. Furnace No. 3 Time 10 hours Temperature 1500° C. Etched HF Photomicrograph x 60 Fig. XXII, shows the microstructure of the alloy. The re-sults are practically the same as in Experiment 1.c. Nickel, tungsten, carbon. Experiment 1. Furnace No. 3 Time 2 hours Temperature .... 1600° C. Etched EF Photomicrograph • . x 100 The microstructure ofthis alloy is shown in Fig.XXIII. The dark lines in-dicate the separation of car-bon as free graphite from amatrix of a tungsten-nickelalloy. Fig. XXIII. 1^

. Alloys of tungsten by diffusion. Fig. X.. Fig. XI. Experiment 1. Furnace No. 2 Time 2 hours Temperature .... 1050° C Etched EF Photomicrograph . x 100 Figure X shows the dif-fusion of the tungsten be-tween the grain boundariesof the antimony. The darkband at the junction of thetwo metals is due to the un-even etching of the two me-tals. The diffusion in thiscase extended about one-eighth of an inch in from theedge of the tungsten. Experiment 2. Furnace No. 2 Time 24 hours Temperature .... 1050° C. Etched 4$ Ale. EN03 Fig. XI. shows the morecomplete diffusion, the be-ginning of which was evid Stock Photo

RM2AGEA72–. Alloys of tungsten by diffusion. Fig. X.. Fig. XI. Experiment 1. Furnace No. 2 Time 2 hours Temperature .... 1050° C Etched EF Photomicrograph . x 100 Figure X shows the dif-fusion of the tungsten be-tween the grain boundariesof the antimony. The darkband at the junction of thetwo metals is due to the un-even etching of the two me-tals. The diffusion in thiscase extended about one-eighth of an inch in from theedge of the tungsten. Experiment 2. Furnace No. 2 Time 24 hours Temperature .... 1050° C. Etched 4$ Ale. EN03 Fig. XI. shows the morecomplete diffusion, the be-ginning of which was evid

Transactions . ater accompanying a pound of dry air.However convenient this may be for heating and ventilating workand other engineering problems, there are several reasons for prefer-ring the use of a value expressed in grains of water in a cubic foot ofmixed air and water vapor, in connection with combustion phenomenaand the effects of moisture on blast-furnace operation. Previouspapers presented to the Institute have used such values and we have 1 Determining Moisture in Air Blast, Iron Trade Review, vol. xlvii, No. 26, p. 1205(Dec. 29, 1910). 2 Weather Bureau Bulletin No. 235, U. S. Depart Stock Photo

RM2AWHHBG–Transactions . ater accompanying a pound of dry air.However convenient this may be for heating and ventilating workand other engineering problems, there are several reasons for prefer-ring the use of a value expressed in grains of water in a cubic foot ofmixed air and water vapor, in connection with combustion phenomenaand the effects of moisture on blast-furnace operation. Previouspapers presented to the Institute have used such values and we have 1 Determining Moisture in Air Blast, Iron Trade Review, vol. xlvii, No. 26, p. 1205(Dec. 29, 1910). 2 Weather Bureau Bulletin No. 235, U. S. Depart

$Chemical engineering . by melting casiiron and scrap or oreThe furnace is buihby forming a long.narrow, shallow chan-nel of refractory ma- «• CIN.terial such as chro- mite; the channel is filled with molten cast iron, and the cur-rent passed through tlie latter, the ends of the channel beingsupplied with water-c^mled iron terminals for that purpose. Adetailed description nf the furnace may be found in an articleby Bennie, Elcclrocluniical Industry, Vol. II., No. 1, p. 20. The heat generated in the channel of metal per second maybe calculated from the equation: E JH=IR = Xi) RWhere J is the mec Stock Photo$

RM2AWX82Y–Chemical engineering . by melting casiiron and scrap or oreThe furnace is buihby forming a long.narrow, shallow chan-nel of refractory ma- «• CIN.terial such as chro- mite; the channel is filled with molten cast iron, and the cur-rent passed through tlie latter, the ends of the channel beingsupplied with water-c^mled iron terminals for that purpose. Adetailed description nf the furnace may be found in an articleby Bennie, Elcclrocluniical Industry, Vol. II., No. 1, p. 20. The heat generated in the channel of metal per second maybe calculated from the equation: E JH=IR = Xi) RWhere J is the mec

. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. LATHES.—FANEUIL WATCH TOOL CO.S Faneuil Lathe. No. 3346. Faneuil Lathe; length of bed, 10% inches; bed to center, 2j inches; swing,i% inches; extreme length between centers, Z% inches, with screw chuck, taper chuck, 6 wire chucks, and 6 cement chucks. Complete $35.00 This Lathe is fully guaranteed by the manufacturer. inHo„ . 1 Ladles, Furnace see Classification F Lathes, Drill see Cla inaex. -^ Lathes, Centerini! .... •? C Letters, Die - iification D Loups, Eye Glass.. .see Classification E The Twentieth Centu Stock Photo

RM2AGBEFB–. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. LATHES.—FANEUIL WATCH TOOL CO.S Faneuil Lathe. No. 3346. Faneuil Lathe; length of bed, 10% inches; bed to center, 2j inches; swing,i% inches; extreme length between centers, Z% inches, with screw chuck, taper chuck, 6 wire chucks, and 6 cement chucks. Complete $35.00 This Lathe is fully guaranteed by the manufacturer. inHo„ . 1 Ladles, Furnace see Classification F Lathes, Drill see Cla inaex. -^ Lathes, Centerini! .... •? C Letters, Die - iification D Loups, Eye Glass.. .see Classification E The Twentieth Centu

The centennial anniversary of the city of Hamilton, Ohio . thefact that this enormous business has not developed one single failure is cer-tainly a matter of wonderment, and reflects extraordinary credit upon theestablishment. THE CENTENNIAL ANNIVERSARY OF HAMILTON. O. 259 THE F. <^ 1^. KAHH & Bt^os. stove Foundry. N 1842 Martin, Henderson & Co. established a stove foundry at Hang-ing Rock, Ohio, one of the earliest stove foundries in the state, andthe design and practice was to cast stove plate directly from the reduced ironas it ran from the blast furnace, no intermediate pig iron or reme Stock Photo

RM2AWRB0F–The centennial anniversary of the city of Hamilton, Ohio . thefact that this enormous business has not developed one single failure is cer-tainly a matter of wonderment, and reflects extraordinary credit upon theestablishment. THE CENTENNIAL ANNIVERSARY OF HAMILTON. O. 259 THE F. <^ 1^. KAHH & Bt^os. stove Foundry. N 1842 Martin, Henderson & Co. established a stove foundry at Hang-ing Rock, Ohio, one of the earliest stove foundries in the state, andthe design and practice was to cast stove plate directly from the reduced ironas it ran from the blast furnace, no intermediate pig iron or reme

Carey's coverings: catalog no 411 . Chattanooga Blast Furnace Co., Chattanooga, Tenn. Careys Covering used throughout. Asbestos Sheet Mill Board. Careys Asbestos Millboardis made entirely of Asbestos,and is therefore fire and acidproof. It is used extensivelyfor packing steam joints, forfire screens, partitions, pro-tecting ceilings and walls,lining ranges, stoves andgrates, and an infinite num-ber of other purposes re-quiring fire and heat protec-tion. It is furnished regu-larly in sheets 40x40 and 42x44 ranging in thickness from 1-32 to 1. Approximate weight per sheet 40x40: 1-32 in thick, 2 Stock Photo

RM2AJECF3–Carey's coverings: catalog no 411 . Chattanooga Blast Furnace Co., Chattanooga, Tenn. Careys Covering used throughout. Asbestos Sheet Mill Board. Careys Asbestos Millboardis made entirely of Asbestos,and is therefore fire and acidproof. It is used extensivelyfor packing steam joints, forfire screens, partitions, pro-tecting ceilings and walls,lining ranges, stoves andgrates, and an infinite num-ber of other purposes re-quiring fire and heat protec-tion. It is furnished regu-larly in sheets 40x40 and 42x44 ranging in thickness from 1-32 to 1. Approximate weight per sheet 40x40: 1-32 in thick, 2

Electrochemical and metallurgical industry . es the standard design of the Allis-ChalmersCo. for rectangular matting furnaces up to 42 inches x 120inches in size. The bottom of this furnace is formed by aheavy cast-iron plate resting upon jackscrews, which are car-ried upon a steel truck mounted upon flanged wheels. Inmany furnaces the truck is omitted, the jackscrew bases rest-ing upon the furnace foundation. The jackets rest directly J44 FXECTKUL111:mI( l. N1) MKTALLURGICAL industry. IVoi. Ill No. 11 upon the bottom plate, but arc liiiiig from tin- maiiilc Irainc 1)>suitable hangers, so Stock Photo

RM2ANEJJ5–Electrochemical and metallurgical industry . es the standard design of the Allis-ChalmersCo. for rectangular matting furnaces up to 42 inches x 120inches in size. The bottom of this furnace is formed by aheavy cast-iron plate resting upon jackscrews, which are car-ried upon a steel truck mounted upon flanged wheels. Inmany furnaces the truck is omitted, the jackscrew bases rest-ing upon the furnace foundation. The jackets rest directly J44 FXECTKUL111:mI( l. N1) MKTALLURGICAL industry. IVoi. Ill No. 11 upon the bottom plate, but arc liiiiig from tin- maiiilc Irainc 1)>suitable hangers, so

Our day in the light of prophecy and providence . DELIVERED FROM THEFIERY FURNACE The fire had no power, nor was a hairof their head singed. Dan. 3: 27,. JOHN KNOX REPROVINGMARY QUEEN OF SCOTS I fear the prayers of John Knox more thanall the armies of Europe.—Queen Mary. DELIVERANCE OF OLD-TIME GOSPEL WITNESSES Who delivered us from so great a death, andds)th deliver: in ivhom we trust that He will yetdeliver us/ 2 Cor. 1: 10. Wishart, of Scotland The Bible had entered Scotland, and the Reformation go-ing forward in England and on the Continent was breakingday among the Scots. George Wishart, Stock Photo

RM2AX3DN5–Our day in the light of prophecy and providence . DELIVERED FROM THEFIERY FURNACE The fire had no power, nor was a hairof their head singed. Dan. 3: 27,. JOHN KNOX REPROVINGMARY QUEEN OF SCOTS I fear the prayers of John Knox more thanall the armies of Europe.—Queen Mary. DELIVERANCE OF OLD-TIME GOSPEL WITNESSES Who delivered us from so great a death, andds)th deliver: in ivhom we trust that He will yetdeliver us/ 2 Cor. 1: 10. Wishart, of Scotland The Bible had entered Scotland, and the Reformation go-ing forward in England and on the Continent was breakingday among the Scots. George Wishart,

Gleanings in bee culture . SAVE HALF YOUR FUEL BY USING THE Rochester Radiator Fits any Stove or Furnace.Guaranteed to do all we claim or money refunded.Write for booklet on heating homes. Rochester Radiator Co., 50 Famae« St., Rochester, N Y. Price from $•2. 00 to$12.00 For hard or soft coal, wood or pas.. No attomej^afee nntll pat-ent Ixallowed. Write for7ntient-ort Ouide. TME BEST?aLIOnT Mo?el%rini«n« abas Xicetoieitr. HoOreki*—Smoka—Dirt 01 Odor.At*nU Waatad Everywhcr*. THl BUST UOHT CO., 306 1. 8th Bt., Canton, O. | Stock Photo

RM2AKRTWE–Gleanings in bee culture . SAVE HALF YOUR FUEL BY USING THE Rochester Radiator Fits any Stove or Furnace.Guaranteed to do all we claim or money refunded.Write for booklet on heating homes. Rochester Radiator Co., 50 Famae« St., Rochester, N Y. Price from $•2. 00 to$12.00 For hard or soft coal, wood or pas.. No attomej^afee nntll pat-ent Ixallowed. Write for7ntient-ort Ouide. TME BEST?aLIOnT Mo?el%rini«n« abas Xicetoieitr. HoOreki*—Smoka—Dirt 01 Odor.At*nU Waatad Everywhcr*. THl BUST UOHT CO., 306 1. 8th Bt., Canton, O. |

E/MJ : engineering and mining journal . ool-proof any process may be, variation- are demanded bydifferent ore- and foi different fields of operation. The procedure as first tried aboul ten years ago is shown in How sheet No. 1. This provides for roasting a muffle furnace at a finishing temperature of aboul i that no zinc remains ?oi,. Hence, b) the aid of a serubbii weak once startin all) all the Si l returned t, - I orbed dail) mi the scrubl Heat required for -from the . Iphite solution (and thet i to be evolved as gas i was obta ined Ivi Inments, by i •? muffle furnace; thai is, both -e- an Stock Photo

RM2AN837A–E/MJ : engineering and mining journal . ool-proof any process may be, variation- are demanded bydifferent ore- and foi different fields of operation. The procedure as first tried aboul ten years ago is shown in How sheet No. 1. This provides for roasting a muffle furnace at a finishing temperature of aboul i that no zinc remains ?oi,. Hence, b) the aid of a serubbii weak once startin all) all the Si l returned t, - I orbed dail) mi the scrubl Heat required for -from the . Iphite solution (and thet i to be evolved as gas i was obta ined Ivi Inments, by i •? muffle furnace; thai is, both -e- an

Chemical engineering . FIG. 2.—SILICO.S LKV,sT.Ls 34- A paper presented before the American Electrochemical Society,Boston meeting . Report presented at Third International Congress of Chemists atVienna. Stahl und Eisen, March 7 and IS, 1S99. •Reprint of paper read at Institute of Civil Engineers. The Metal-logriphi«t. vol. 1. pages 135, 136. •Annalcs dcs Mines, October, 1900. •Translation in American Manufacturers, Feb. 12, 1903, from ComplesRendus. •Journal Iron and Steel Institute, 1300. No. 11. ^Mois^.U1. Klectric Furnace, Eng. edition, page 69. 424 ELECTROCHEMICAL .WD METALLl^RGTCAL INDU Stock Photo

RM2AWW31K–Chemical engineering . FIG. 2.—SILICO.S LKV,sT.Ls 34- A paper presented before the American Electrochemical Society,Boston meeting . Report presented at Third International Congress of Chemists atVienna. Stahl und Eisen, March 7 and IS, 1S99. •Reprint of paper read at Institute of Civil Engineers. The Metal-logriphi«t. vol. 1. pages 135, 136. •Annalcs dcs Mines, October, 1900. •Translation in American Manufacturers, Feb. 12, 1903, from ComplesRendus. •Journal Iron and Steel Institute, 1300. No. 11. ^Mois^.U1. Klectric Furnace, Eng. edition, page 69. 424 ELECTROCHEMICAL .WD METALLl^RGTCAL INDU

. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. 3779 377a WS^SKSFHt L LAPS. Optician and Lapidary. No. 3778. Opticians Friend, for grinding and polishing lenses, crystals, etc., complete 3779. JewelersLapidary Set 1.25 Index: ( Ladles. Furnace ....sec Classification F Lathe Brushes and Buffs.see Classfin B Lining Gravers see Classification G - Lathes, Centering.. ? C Letters, Die D Loups, Eye Glass... ? E 1 ? Drill •? •• D For Watchmakers, Jewelers and Kindred Trades,. LAP5, LEVELS AND LENS HOLDERS. No. 3780. Clock Level, nicely made, nickel-plated. 3781. jap Stock Photo

RM2AGB0WY–. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. 3779 377a WS^SKSFHt L LAPS. Optician and Lapidary. No. 3778. Opticians Friend, for grinding and polishing lenses, crystals, etc., complete 3779. JewelersLapidary Set 1.25 Index: ( Ladles. Furnace ....sec Classification F Lathe Brushes and Buffs.see Classfin B Lining Gravers see Classification G - Lathes, Centering.. ? C Letters, Die D Loups, Eye Glass... ? E 1 ? Drill •? •• D For Watchmakers, Jewelers and Kindred Trades,. LAP5, LEVELS AND LENS HOLDERS. No. 3780. Clock Level, nicely made, nickel-plated. 3781. jap

Church review . ? 25.1 P£ARL ST., iARTFOfiD, CO** J. M. MUZIO. J. V. BERTUCCI. AETNABARBER SHOP HAS REMOVED TO 226 Asylum Street. Razors and Strops for Sale. Give us a call. BonAmi Used for spring house-clean-ing is laying the corner-stoneof comfort for the remainder ofthe year. Those having usedit say Couldnt do without it. Ask your GROCER for BROWNS QUICK FIRECHARCOAL, TAKE NO OTHER. BIG BAGS, 10 Cts.. 87 Pratt Street. Watches, Clocks, Jewelry, Spectacles REPAIRED AND WARRANTED. F. E.BEHNER, Tin, Sheet Iron and Copper Worker, Furnace Work and General Jobbing, Tin Roolins, Conductors and Gu Stock Photo

RM2AJBFRF–Church review . ? 25.1 P£ARL ST., iARTFOfiD, CO** J. M. MUZIO. J. V. BERTUCCI. AETNABARBER SHOP HAS REMOVED TO 226 Asylum Street. Razors and Strops for Sale. Give us a call. BonAmi Used for spring house-clean-ing is laying the corner-stoneof comfort for the remainder ofthe year. Those having usedit say Couldnt do without it. Ask your GROCER for BROWNS QUICK FIRECHARCOAL, TAKE NO OTHER. BIG BAGS, 10 Cts.. 87 Pratt Street. Watches, Clocks, Jewelry, Spectacles REPAIRED AND WARRANTED. F. E.BEHNER, Tin, Sheet Iron and Copper Worker, Furnace Work and General Jobbing, Tin Roolins, Conductors and Gu

. Alloys of tungsten by diffusion. Furnace No. 3 Time 2 hours Temperature .... 1600° C. Etched EF Photomicrograph • . x 100 The microstructure ofthis alloy is shown in Fig.XXIII. The dark lines in-dicate the separation of car-bon as free graphite from amatrix of a tungsten-nickelalloy. Fig. XXIII. 1^. Fig. XXIV. 28 Experiment 2 Furnace Ho, 3 Time 10 hours temperature • • • . 1500° C.Une tched Photomicrograph • . z 100 This alloy is somewhathigher in tungsten than al-loy 1. The time of heatinghas also been increased.The microstructure (Fig.XXIV.) seems to show the for-mation of the double carbi Stock Photo

RM2AGE5JT–. Alloys of tungsten by diffusion. Furnace No. 3 Time 2 hours Temperature .... 1600° C. Etched EF Photomicrograph • . x 100 The microstructure ofthis alloy is shown in Fig.XXIII. The dark lines in-dicate the separation of car-bon as free graphite from amatrix of a tungsten-nickelalloy. Fig. XXIII. 1^. Fig. XXIV. 28 Experiment 2 Furnace Ho, 3 Time 10 hours temperature • • • . 1500° C.Une tched Photomicrograph • . z 100 This alloy is somewhathigher in tungsten than al-loy 1. The time of heatinghas also been increased.The microstructure (Fig.XXIV.) seems to show the for-mation of the double carbi

Bulletin . e less than1,500° C. For ashes that soften at a temperature higher than 1,500°C, it is permissible to run pure hydrogen through the furnace, as theiron oxide content is so low as to have little effect on the fusibility. DESCRIPTION OF FURNACE AND SATURATOR. The furnace and saturator are shown in Plate IV, A. The detailsare given in figures 2o and 27. The furnace consists in part of anouter shell of No. 14 B. & S. gage sheet iron, 7 inches in diameter and11 inches long, autogenously welded, gas-tight at the seams, and hav-ing at the front a circular 1-inch flange perforated for six e Stock Photo

RM2AJB4JX–Bulletin . e less than1,500° C. For ashes that soften at a temperature higher than 1,500°C, it is permissible to run pure hydrogen through the furnace, as theiron oxide content is so low as to have little effect on the fusibility. DESCRIPTION OF FURNACE AND SATURATOR. The furnace and saturator are shown in Plate IV, A. The detailsare given in figures 2o and 27. The furnace consists in part of anouter shell of No. 14 B. & S. gage sheet iron, 7 inches in diameter and11 inches long, autogenously welded, gas-tight at the seams, and hav-ing at the front a circular 1-inch flange perforated for six e

. Canadian foundryman (1921). Steel Furnaces 100 lbs. to 15 tonscapacity. Grey Iron and Fer-ro-Alloy Furnaces. In sizes to suit cus-tomer. Brass Furnaces Three - Phase, instandard sizes of Vs,M, Vz and 1 ton ca-pacity. Electric Furnace Ac-cessories ofall kinds. Estimates and Gen-eral Informationcheerfullygiven. The Volta Manufacturing Company, Ltd. WELLAND, ONT. September, 1921 CANADIAN FOUNDRYMAN GRIMES ROLLOVERMOLDING MACHINES are Labor and time saving machines Simplicity ofdesign; easeof operation;1 o w install-ation; no pitsto clean; en-tirely abovethe floor; lit-tle space re-quired — In-v Stock Photo

RM2AG6HC1–. Canadian foundryman (1921). Steel Furnaces 100 lbs. to 15 tonscapacity. Grey Iron and Fer-ro-Alloy Furnaces. In sizes to suit cus-tomer. Brass Furnaces Three - Phase, instandard sizes of Vs,M, Vz and 1 ton ca-pacity. Electric Furnace Ac-cessories ofall kinds. Estimates and Gen-eral Informationcheerfullygiven. The Volta Manufacturing Company, Ltd. WELLAND, ONT. September, 1921 CANADIAN FOUNDRYMAN GRIMES ROLLOVERMOLDING MACHINES are Labor and time saving machines Simplicity ofdesign; easeof operation;1 o w install-ation; no pitsto clean; en-tirely abovethe floor; lit-tle space re-quired — In-v

Chemical engineering . CR.MIIITOIU.M. SILICON X 23.. FIG. 2.—SILICO.S LKV,sT.Ls 34- A paper presented before the American Electrochemical Society,Boston meeting . Report presented at Third International Congress of Chemists atVienna. Stahl und Eisen, March 7 and IS, 1S99. •Reprint of paper read at Institute of Civil Engineers. The Metal-logriphi«t. vol. 1. pages 135, 136. •Annalcs dcs Mines, October, 1900. •Translation in American Manufacturers, Feb. 12, 1903, from ComplesRendus. •Journal Iron and Steel Institute, 1300. No. 11. ^Mois^.U1. Klectric Furnace, Eng. edition, page 69. 424 ELECTROCH Stock Photo

RM2AWW37P–Chemical engineering . CR.MIIITOIU.M. SILICON X 23.. FIG. 2.—SILICO.S LKV,sT.Ls 34- A paper presented before the American Electrochemical Society,Boston meeting . Report presented at Third International Congress of Chemists atVienna. Stahl und Eisen, March 7 and IS, 1S99. •Reprint of paper read at Institute of Civil Engineers. The Metal-logriphi«t. vol. 1. pages 135, 136. •Annalcs dcs Mines, October, 1900. •Translation in American Manufacturers, Feb. 12, 1903, from ComplesRendus. •Journal Iron and Steel Institute, 1300. No. 11. ^Mois^.U1. Klectric Furnace, Eng. edition, page 69. 424 ELECTROCH

Marine Engineer . 19 tobelow the furnace 7, DampersII, 17. 18 control the flow of thefurnace gases. The walls forminythe air and waste gas passagesarc part of the brickwork ofthe plant. In a plant comprisingtwo or more boilers the preheater may be divided into two or more parts. No. 195,354. Turbo-electric generators : pumps. Iluijuenin. A.. 19. llardturmslni.s.te. Zurich. Su-it:erland. February8, 1923. So. 3844. Conrentiun date. March 21. 1922. Sot yetaccepted. .Abridged as o/ten to inspection under Section 91 of the Art.ria.s.ies .35, ,38 (iv), atid 11(1 (iii).] . turbo-ehctric generator i Stock Photo

RM2AWYBK4–Marine Engineer . 19 tobelow the furnace 7, DampersII, 17. 18 control the flow of thefurnace gases. The walls forminythe air and waste gas passagesarc part of the brickwork ofthe plant. In a plant comprisingtwo or more boilers the preheater may be divided into two or more parts. No. 195,354. Turbo-electric generators : pumps. Iluijuenin. A.. 19. llardturmslni.s.te. Zurich. Su-it:erland. February8, 1923. So. 3844. Conrentiun date. March 21. 1922. Sot yetaccepted. .Abridged as o/ten to inspection under Section 91 of the Art.ria.s.ies .35, ,38 (iv), atid 11(1 (iii).] . turbo-ehctric generator i

. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. ?ilttilHiWI LATHES. Imported, 1x2. No. 3456. Moseley Imported Lathe. Size of chucks and attachments will interchangewith Moseley 1x2. Complete, as illustrated above, 14-chiick combination,8-wire, 1-screw, 3-wheel, six J^-inch, one J^-inch and one ^-inch cementchucks, box and belting $24.00 Noi Illiislrated. No. 3457. Wire Chucks each, % 0.65 « 3458. Wheel Chucks 1.00 3459. Universal Chucks 7.50 3460. Slide Rest 10.50 InHov • J Ladles, Furnace see Classificati( inaex ., Lathes, Centering .... .see Classification Stock Photo

RM2AGBD2H–. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. ?ilttilHiWI LATHES. Imported, 1x2. No. 3456. Moseley Imported Lathe. Size of chucks and attachments will interchangewith Moseley 1x2. Complete, as illustrated above, 14-chiick combination,8-wire, 1-screw, 3-wheel, six J^-inch, one J^-inch and one ^-inch cementchucks, box and belting $24.00 Noi Illiislrated. No. 3457. Wire Chucks each, % 0.65 « 3458. Wheel Chucks 1.00 3459. Universal Chucks 7.50 3460. Slide Rest 10.50 InHov • J Ladles, Furnace see Classificati( inaex ., Lathes, Centering .... .see Classification

Canadian foundryman (1921) . RIO March, 1^21 CANADIAN FOUNDRYMAN 53 EXHAUST TUMBLING MILLS i^^f F*^^^^?=- mmimw-vv^^^^*^^. BUILT IN DOUBLE FILE s4Braii?£l5a ?^ Constructed in the same efficient manneras all other McDougall products. M m ^H W Each Mill may be run separately, which• proves a decided advantage when filling oremptying. H^BpRjjS^ Properly protected Ring Oiling Bearing. ^IH BhiT^^^P Guaranteed for Long, Continuous, Satis-factory Service. ? ^^^B THE R.McDOUGALLCO.,LTD. GALT, ONTARIO HAUSFELD Tilting Crucible Melting Furnace No equipment other than piping to the gas meterand the fuel Stock Photo

RM2AJ1JEY–Canadian foundryman (1921) . RIO March, 1^21 CANADIAN FOUNDRYMAN 53 EXHAUST TUMBLING MILLS i^^f F*^^^^?=- mmimw-vv^^^^*^^. BUILT IN DOUBLE FILE s4Braii?£l5a ?^ Constructed in the same efficient manneras all other McDougall products. M m ^H W Each Mill may be run separately, which• proves a decided advantage when filling oremptying. H^BpRjjS^ Properly protected Ring Oiling Bearing. ^IH BhiT^^^P Guaranteed for Long, Continuous, Satis-factory Service. ? ^^^B THE R.McDOUGALLCO.,LTD. GALT, ONTARIO HAUSFELD Tilting Crucible Melting Furnace No equipment other than piping to the gas meterand the fuel

Journal . t the 2-inclipreheating pipes have been effectually replaced b>tubular heat-interchangers erected outside th«furnace .setting. The East Greenwich plant isdivided into five 3-million units. (See Fig. 4.) Eachunit consists of a central producer surmountedby a combustion chamber, situated oti both sides of Vol. XXXIV., No. 1.] KVANS—REMO Ah OK (14RBC)N BISULPHIDE FRUM COAL (JAS. I:t which are heatins chambors, maint-ained at 420°to 440° (. and in whiih iiif assiiiililcd tlie li-imliietti:tion tubes. Ilu- t;as is pri-heati-d to a aniallextent »-itliin thr hi-atiii); cliariilx-i-. but Stock Photo

RM2AWNC77–Journal . t the 2-inclipreheating pipes have been effectually replaced b>tubular heat-interchangers erected outside th«furnace .setting. The East Greenwich plant isdivided into five 3-million units. (See Fig. 4.) Eachunit consists of a central producer surmountedby a combustion chamber, situated oti both sides of Vol. XXXIV., No. 1.] KVANS—REMO Ah OK (14RBC)N BISULPHIDE FRUM COAL (JAS. I:t which are heatins chambors, maint-ained at 420°to 440° (. and in whiih iiif assiiiililcd tlie li-imliietti:tion tubes. Ilu- t;as is pri-heati-d to a aniallextent »-itliin thr hi-atiii); cliariilx-i-. but

. Alloys of tungsten by diffusion. present.This would point to the factthat crystals are a tungstideof iron, rather than thedouble carbide. R. A. Kadfield1 has es-tablished the existence of a R. A. Hadfield, J. Iron and Steel Inst. 64, 2(1903) p. 14 26 compo-und Fe^tf and a double carbide FegV^Cg. The compound, whichhe designates as Fe^W, is similar in crystalline form to thatshown in Fig. XIX, b. Chromium, tungsten, and carbon. Experiment 1. Furnace No. 3 Time 1^ hours Temperature .... 1450° C. Etched EF Photomicrograph . x 330 The results of this ex-periment were such that thespecimen offere Stock Photo

RM2AGE6NB–. Alloys of tungsten by diffusion. present.This would point to the factthat crystals are a tungstideof iron, rather than thedouble carbide. R. A. Kadfield1 has es-tablished the existence of a R. A. Hadfield, J. Iron and Steel Inst. 64, 2(1903) p. 14 26 compo-und Fe^tf and a double carbide FegV^Cg. The compound, whichhe designates as Fe^W, is similar in crystalline form to thatshown in Fig. XIX, b. Chromium, tungsten, and carbon. Experiment 1. Furnace No. 3 Time 1^ hours Temperature .... 1450° C. Etched EF Photomicrograph . x 330 The results of this ex-periment were such that thespecimen offere

. Lehigh Alumni Bulletin 1921-1922 (volume 9, no. 6). et,New York City. B. R. Rebert has left Pittsburgh and is now at81 Peterboro Street, Detroit, Mich. Class of 101 :J A. D. Jamieson has left Washington and isnow living at Lawrenceville. N. .1. Judy Price has been elected Mayor of Dan-ville, Pa. I reckon Ill have to ask Judy howthe tricks done. Edmund Quiney has left Cleveland and is nowestablished as a Consulting Engineer at Brewster.X. Y. L. P. Wragg is now Pittsburgh Representativefor A. Hermanson, Industrial Furnace Engineers. E. E. Wright has been transferred by theNational Carbon Co. f Stock Photo

RM2AFRFDG–. Lehigh Alumni Bulletin 1921-1922 (volume 9, no. 6). et,New York City. B. R. Rebert has left Pittsburgh and is now at81 Peterboro Street, Detroit, Mich. Class of 101 :J A. D. Jamieson has left Washington and isnow living at Lawrenceville. N. .1. Judy Price has been elected Mayor of Dan-ville, Pa. I reckon Ill have to ask Judy howthe tricks done. Edmund Quiney has left Cleveland and is nowestablished as a Consulting Engineer at Brewster.X. Y. L. P. Wragg is now Pittsburgh Representativefor A. Hermanson, Industrial Furnace Engineers. E. E. Wright has been transferred by theNational Carbon Co. f

Canadian machinery and metalworking (July-December 1917) . achine. 6 x 14 P. & W. Thread Miller. No. 3 A La Point Broacher. No. 1 American Air Tempering Furnace. Belt Lacing Machine. 3-Ton Yale Duplex Hoist. 3-Ton Yale Triplex Hoist. Stocker-Rumely-Wachs Company, 117 N. Jefferson St., CHICAGO, ILL. Let the Boss Know It! TF you are a reader of Canadian Machinery,-* go tell your employer about it some con-venient time! You couldnt tell the up-to-datemanufacturer anything that would please himmore. He would know that you are abreast ofthe times; that you are ambitious and inter-ested in your work Stock Photo

RM2AX75MC–Canadian machinery and metalworking (July-December 1917) . achine. 6 x 14 P. & W. Thread Miller. No. 3 A La Point Broacher. No. 1 American Air Tempering Furnace. Belt Lacing Machine. 3-Ton Yale Duplex Hoist. 3-Ton Yale Triplex Hoist. Stocker-Rumely-Wachs Company, 117 N. Jefferson St., CHICAGO, ILL. Let the Boss Know It! TF you are a reader of Canadian Machinery,-* go tell your employer about it some con-venient time! You couldnt tell the up-to-datemanufacturer anything that would please himmore. He would know that you are abreast ofthe times; that you are ambitious and inter-ested in your work

. Hardware merchandising August-October 1912. Capacity No. 21 —15,000 feet.Capacity No. 23—25,000 feet. Different in shape and proportion from our other furnaces, being specially constructed tosurmount the difficulty of obtaining a sufficient pitch to the warm air pipes in buildings with LOW CELLARS. No. 2 1 Furnace fully cased does not exceed 4 feet in height.. JEWELFurnaces givesatisfaction andstand the test. More Business SELL JEWEL FURNACES WRITE TO-DAY FOR FULL INFORMATION AND PRICES. More Profit The Burrow, Stewart & Milne Company, Limited Head Office and Works Established 1864 Hamilton, Stock Photo

RM2AG1CXW–. Hardware merchandising August-October 1912. Capacity No. 21 —15,000 feet.Capacity No. 23—25,000 feet. Different in shape and proportion from our other furnaces, being specially constructed tosurmount the difficulty of obtaining a sufficient pitch to the warm air pipes in buildings with LOW CELLARS. No. 2 1 Furnace fully cased does not exceed 4 feet in height.. JEWELFurnaces givesatisfaction andstand the test. More Business SELL JEWEL FURNACES WRITE TO-DAY FOR FULL INFORMATION AND PRICES. More Profit The Burrow, Stewart & Milne Company, Limited Head Office and Works Established 1864 Hamilton,

Welding; theory, practice, apparatus and tests, electric, thermit and hot-flame processes . Fig. 50. Fig. 50.—High-pressure tank for U. S. Navy. Ends and seams welded and3/4 flange welded to end. Material 1/2 inch thick, size 36 x 30 3/4 inches.Tested to 250 lbs. Fig. 51.—Steel tubes welded to shell. chisels and welded; all repaired parts were annealed with burners.In two spots where there were several adjoining cracks, a part ofthe furnace was cut out and replaced by a welded piece. No I04 WELDING leak was observed at any of the loo places so repaired at the hydro-static or steam tests. Only Stock Photo

RM2AJHD4E–Welding; theory, practice, apparatus and tests, electric, thermit and hot-flame processes . Fig. 50. Fig. 50.—High-pressure tank for U. S. Navy. Ends and seams welded and3/4 flange welded to end. Material 1/2 inch thick, size 36 x 30 3/4 inches.Tested to 250 lbs. Fig. 51.—Steel tubes welded to shell. chisels and welded; all repaired parts were annealed with burners.In two spots where there were several adjoining cracks, a part ofthe furnace was cut out and replaced by a welded piece. No I04 WELDING leak was observed at any of the loo places so repaired at the hydro-static or steam tests. Only

. Canadian machinery and metalworking (January-June 1913). The Whiton AUTOMATIC Gear CuttingMachine Do you want Catalog ? The D. E. WhitonMachine Cn. NEW LONDON, - CONN. n HI 9 » II 1 9 ? M ROCKWELL, FORGE* FURNACES For every purpose.Oil or Gas Fuel.Built in Standard Sizes.Simple, Strong, Durable. Write for Catalog No. 46 W. S. ROCKWELL COMPANY Furnace Engineers and Contractors 50 Church St. NEW YORK (Hudson Terminal Building). /TXHIS is our 20-ton jack mounted onA 15 in. Steel Base, is 22in. high, rise11 in., can be detached from base andused in the ordinary way. Loads of half the rated capac Stock Photo

RM2AFHNGY–. Canadian machinery and metalworking (January-June 1913). The Whiton AUTOMATIC Gear CuttingMachine Do you want Catalog ? The D. E. WhitonMachine Cn. NEW LONDON, - CONN. n HI 9 » II 1 9 ? M ROCKWELL, FORGE* FURNACES For every purpose.Oil or Gas Fuel.Built in Standard Sizes.Simple, Strong, Durable. Write for Catalog No. 46 W. S. ROCKWELL COMPANY Furnace Engineers and Contractors 50 Church St. NEW YORK (Hudson Terminal Building). /TXHIS is our 20-ton jack mounted onA 15 in. Steel Base, is 22in. high, rise11 in., can be detached from base andused in the ordinary way. Loads of half the rated capac

Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . 2 >-!M &uK HO oS s < o< no LAYING OUT FOR BOILER MAKERS lialdt mr of stays.Steel IJedU.^IS thre&da per 1 Inside and outsideNuts ^^gdeep Outside reirs of stays.Steel IHdla.X2 thcMds per Iloslde and outside- Kuts iVi8 deep. RIVETING FOR FRONT BOTTOM LAP 15X11FRONT MANHOLE PLATE HALF CROSS-SECTIONS AND DETAILS OF TUBES, MANHOLES AND HANDHOLES OF A MODERN, FOUR-FURNACE, SINGLE-ENDED SCOTCH BOILER, l6 FEET 6 INCHES DIAMETER Stock Photo

RM2ANJDY0–Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . 2 >-!M &uK HO oS s < o< no LAYING OUT FOR BOILER MAKERS lialdt mr of stays.Steel IJedU.^IS thre&da per 1 Inside and outsideNuts ^^gdeep Outside reirs of stays.Steel IHdla.X2 thcMds per Iloslde and outside- Kuts iVi8 deep. RIVETING FOR FRONT BOTTOM LAP 15X11FRONT MANHOLE PLATE HALF CROSS-SECTIONS AND DETAILS OF TUBES, MANHOLES AND HANDHOLES OF A MODERN, FOUR-FURNACE, SINGLE-ENDED SCOTCH BOILER, l6 FEET 6 INCHES DIAMETER

Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . , 837 to $89 per ton of 2,240 lbs. at forge. Made in all sections of theUnited States by sinking scrap with charcoal in a bloomary or reverbcratory furnace. Used for C.II. No. 1 boiler-plate, and for wire purposes. 3. Best charcoal blooms, $53 to $55 per ton of 2,240lbs. Same as No. 1, but made from high-grade magnetic ores containing but little phosphorus. Used for crucible steel. 4. Best charcoal bar-, $602430. tl, |65 per ton of 2,240 lbs. Made from No. 3 by hammering or rolling. Ba Stock Photo

RM2ANFDAT–Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . , 837 to $89 per ton of 2,240 lbs. at forge. Made in all sections of theUnited States by sinking scrap with charcoal in a bloomary or reverbcratory furnace. Used for C.II. No. 1 boiler-plate, and for wire purposes. 3. Best charcoal blooms, $53 to $55 per ton of 2,240lbs. Same as No. 1, but made from high-grade magnetic ores containing but little phosphorus. Used for crucible steel. 4. Best charcoal bar-, $602430. tl, |65 per ton of 2,240 lbs. Made from No. 3 by hammering or rolling. Ba

Transactions . CO b fe 574 GRAIN GROWTH IN SILICON STEEL. In order to determine the influence of time of anneal upon the graingrowth, several 0.025-in. sheets were placed in a platinum-wound furnaceand heated in hydrogen to 915° C. for 17 hr., 1,000° C. for 8 hr., and1,230° C. for 15 hr. After each period one sample was removed and ex-amined, while the others remained in the hot furnace. No change what- f*f i Ll Fig. 6.—Showing the Growth of Grains along the Direction of Strain. I Size. ever occurred until after the last period. Here the grains were quitelarge, but still of the same order of Stock Photo

RM2AWG9GX–Transactions . CO b fe 574 GRAIN GROWTH IN SILICON STEEL. In order to determine the influence of time of anneal upon the graingrowth, several 0.025-in. sheets were placed in a platinum-wound furnaceand heated in hydrogen to 915° C. for 17 hr., 1,000° C. for 8 hr., and1,230° C. for 15 hr. After each period one sample was removed and ex-amined, while the others remained in the hot furnace. No change what- f*f i Ll Fig. 6.—Showing the Growth of Grains along the Direction of Strain. I Size. ever occurred until after the last period. Here the grains were quitelarge, but still of the same order of

$. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. 32m 32M2 32M3 ^MdEd LATHE ATTACHMENTS. Moseley Lathe Co. No. 3238. Moseley Countershaft, for No. 2, 1 or 1x2.. 3339. Traverse Spindle Grinder 3340. Idler Pulley and Stand, for pivot polisher. 3241. Traverse Spindle Tail Stock 3242. Screw Tail Stock 3343. Half-Open Tail Stock .$7.00.15.00. 7.00.10.00.15.00. 7.00 ( Ladles, Furnace see Classification F Letters, Die Index :?{ Lathes, Centering C Loups, Eye Glass. .see Classification D The Twentieth Century Catalogue of Supplies. Lathe with taper chuck, screw chuck, Stock Photo$

RM2AGBGH9–. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. 32m 32M2 32M3 ^MdEd LATHE ATTACHMENTS. Moseley Lathe Co. No. 3238. Moseley Countershaft, for No. 2, 1 or 1x2.. 3339. Traverse Spindle Grinder 3340. Idler Pulley and Stand, for pivot polisher. 3241. Traverse Spindle Tail Stock 3242. Screw Tail Stock 3343. Half-Open Tail Stock .$7.00.15.00. 7.00.10.00.15.00. 7.00 ( Ladles, Furnace see Classification F Letters, Die Index :?{ Lathes, Centering C Loups, Eye Glass. .see Classification D The Twentieth Century Catalogue of Supplies. Lathe with taper chuck, screw chuck,

. Shipbuilding and Shipping Record. LOVERIDGE,LK?r.hl^r£rR^DfFF: The Staffordshire Tube Co., Ltd., BII^]VIIIVOI-I>=^IVI. fciAV Vt»r SAW IT IN Tllli *». *fc ft*. R. December 30, 1915. SHIPBUILDING AND SHIPPING RECORD. 1.3 ENTIRELY BRITISH MANUFACTURE. ALL THE ADVAN-TAGES OF THE HOTBULB ENGINE BUTWITHOUT THEDISADVANTAGES.. BRITISH MARINE OIL ENGINES PERMAN & CQ urn 82-83 Fenchurch Svi^ect NO HOT BULBS. NO WATER INJECTION. HEAVY OIL. LONCON ? AVENUE LiveRPOOt AGENTS SC CHAMBERS 8. CO- 3MNC ST.livEhpool SUSPENSION BULB FURNACE. UNIFORM SECTION. Board of Trade Constant forSuspension Bulb Furnace Stock Photo

RM2AFWTYT–. Shipbuilding and Shipping Record. LOVERIDGE,LK?r.hl^r£rR^DfFF: The Staffordshire Tube Co., Ltd., BII^]VIIIVOI-I>=^IVI. fciAV Vt»r SAW IT IN Tllli *». *fc ft*. R. December 30, 1915. SHIPBUILDING AND SHIPPING RECORD. 1.3 ENTIRELY BRITISH MANUFACTURE. ALL THE ADVAN-TAGES OF THE HOTBULB ENGINE BUTWITHOUT THEDISADVANTAGES.. BRITISH MARINE OIL ENGINES PERMAN & CQ urn 82-83 Fenchurch Svi^ect NO HOT BULBS. NO WATER INJECTION. HEAVY OIL. LONCON ? AVENUE LiveRPOOt AGENTS SC CHAMBERS 8. CO- 3MNC ST.livEhpool SUSPENSION BULB FURNACE. UNIFORM SECTION. Board of Trade Constant forSuspension Bulb Furnace

RM2ANG8XF–Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . A TWO-FURNACE DOG-HOUSE BOILER. The shell of the boiler is made of ^-inch steel plate, withheads and steam dome of the same thickness. This boiler presents no unusual features as a problem oflaying out if the layout of a Scotch boiler is well understood. JcSl Kpo STipe i^ IJ, Pipe Bolt on a 3 3 3 I 3 Tea withFlat Flanges Sand 9Diam.. 1 n 0 J ..—^£6- %- - Dotoe riveted on whenBoiler is placed in Boat.

The encyclopedia of Sunday schools and religious education (Volume 1); giving a world-wide view of the history and progress of the Sunday school and the development of religious education... . UT*r ^^^c«^^»<J 0=^ Poo/ Tah/es .-- Gymnasium ^ Sunday School Room Kitchen. Piedmont Ave Entrance 5 4 1 CSasementJ Menb League Room 11.1 -T—t If II Club Room to Club Room Club Room * 3 5 Furnace Room r -1 5 Itu 5 Courtesy of A. W Palmer PLTMOtTTH CENTER, OAKLAND, CAL. (See Hygiene.) Care should be takenthat halls are ample and well-lighted, thatstairs should have an easy tread >andshould in no Stock Photo

RM2AWE4N2–The encyclopedia of Sunday schools and religious education (Volume 1); giving a world-wide view of the history and progress of the Sunday school and the development of religious education... . UT*r ^^^c«^^»<J 0=^ Poo/ Tah/es .-- Gymnasium ^ Sunday School Room Kitchen. Piedmont Ave Entrance 5 4 1 CSasementJ Menb League Room 11.1 -T—t If II Club Room to Club Room Club Room * 3 5 Furnace Room r -1 5 Itu 5 Courtesy of A. W Palmer PLTMOtTTH CENTER, OAKLAND, CAL. (See Hygiene.) Care should be takenthat halls are ample and well-lighted, thatstairs should have an easy tread >andshould in no

The Ruhleben camp magazine . graph in a later number. 42 SLAVES OF THE GUN. T*he Furnace was thy Mother, ?*? The Brain of Man thy Sire;Our scorched hands prepared thy BedOf flaming Coal, and cursing, fedThy white-hot Natal Pyte. For thee we toiled and panted,And fed the furnace blast:Our eyes are dim, our shoulders crouchWith watching round thy molten Couch, Great Gun our Slave at last! — We toiled, thy bulk accomplished,To satiate thy greed ;We worked again like fiends in HellTo fill thy hungry Maw with Shell:Now, forth! and serve our need! But lo! The Great Gun answered:A god, no slave am 1 Stock Photo

RM2AJG5ET–The Ruhleben camp magazine . graph in a later number. 42 SLAVES OF THE GUN. T*he Furnace was thy Mother, ?*? The Brain of Man thy Sire;Our scorched hands prepared thy BedOf flaming Coal, and cursing, fedThy white-hot Natal Pyte. For thee we toiled and panted,And fed the furnace blast:Our eyes are dim, our shoulders crouchWith watching round thy molten Couch, Great Gun our Slave at last! — We toiled, thy bulk accomplished,To satiate thy greed ;We worked again like fiends in HellTo fill thy hungry Maw with Shell:Now, forth! and serve our need! But lo! The Great Gun answered:A god, no slave am 1

RM2AJHDB9–Welding; theory, practice, apparatus and tests, electric, thermit and hot-flame processes . Fig. 50. Fig. 50.—High-pressure tank for U. S. Navy. Ends and seams welded and3/4 flange welded to end. Material 1/2 inch thick, size 36 x 30 3/4 inches.Tested to 250 lbs. Fig. 51.—Steel tubes welded to shell. chisels and welded; all repaired parts were annealed with burners.In two spots where there were several adjoining cracks, a part ofthe furnace was cut out and replaced by a welded piece. No I04 WELDING leak was observed at any of the loo places so repaired at the hydro-static or steam tests. Only

Transactions . Fig-5-— Cylinder Ag. Cylinder from Cains Fig. 6.—(Langheim-Pfanhauser) Cylinder No.electrolytic iron, remelted in gas furnace. 26, remelted in Arsem furnace in vacuo.. Fig. 7.—Cylinder Ag, Langheim-Pfanhauser, Fig. 8.—Same as Fig. 1, but 250 diameters, remelted in gas furnace. Plate IIa.—Photomicrographs. THE CRITICAL RANGES A2 AND A3 OF PURE IRON. 707 .I i» P fI / V [! i lI / V ••-... .4 * <5) . .«* 9. A v s: .. ? »p&j£tju*$ s*»j£»cr ZT 708 THE CRITICAL RANGES A2 AND A-3 OF PURE IRON. Stock Photo

RM2AWFJCG–Transactions . Fig-5-— Cylinder Ag. Cylinder from Cains Fig. 6.—(Langheim-Pfanhauser) Cylinder No.electrolytic iron, remelted in gas furnace. 26, remelted in Arsem furnace in vacuo.. Fig. 7.—Cylinder Ag, Langheim-Pfanhauser, Fig. 8.—Same as Fig. 1, but 250 diameters, remelted in gas furnace. Plate IIa.—Photomicrographs. THE CRITICAL RANGES A2 AND A3 OF PURE IRON. 707 .I i» P fI / V [! i lI / V ••-... .4 * <5) . .«* 9. A v s: .. ? »p&j£tju*$ s*»j£»cr ZT 708 THE CRITICAL RANGES A2 AND A-3 OF PURE IRON.

. Transactions. ^ D, Furnace-cooled to 685°, held E,Furnace-cooled to 685°, held 1.5 hr., then air-cooled. 23.75 hr., then air-cooled. Atolling well advanced. Atolling further advanced. Fig. 4.—Microstrxtctuee of Steel No. IV., 0.21 Per Cent, of Carbon,0.05 Per Cent, of Manganese, Heated to 900°, and Cooled inVarious Ways.The designation letters A, B, D, and E, refer to the treatments representedbv ordinates A, B, D, and E of Figs. 2 and 3.? All X 500. Etched with picric acid. 534 DIVORCING ANNEALING. tions in the conditions may cause unexpected and at first sigttanomalous changes in the mecha Stock Photo

RM2AFNHFC–. Transactions. ^ D, Furnace-cooled to 685°, held E,Furnace-cooled to 685°, held 1.5 hr., then air-cooled. 23.75 hr., then air-cooled. Atolling well advanced. Atolling further advanced. Fig. 4.—Microstrxtctuee of Steel No. IV., 0.21 Per Cent, of Carbon,0.05 Per Cent, of Manganese, Heated to 900°, and Cooled inVarious Ways.The designation letters A, B, D, and E, refer to the treatments representedbv ordinates A, B, D, and E of Figs. 2 and 3.? All X 500. Etched with picric acid. 534 DIVORCING ANNEALING. tions in the conditions may cause unexpected and at first sigttanomalous changes in the mecha

The quicksilver resources of California . 236 QUICKSILVER RESOURCES OF CALIFORNIA. Temperature Determinations as Taken by Mr. J. R. Smedberg,February, iSSo, with Furnace No. 9, New Almaden. DegreesCelsius. 1. Lowest peep-hole (above fireplace) 823^ 2. Next higher 946 3. Next higher 878 4. Topmost peep-hole (near furnace throat). . 372 5. Entrance to first brick condenser* 190.6 6. End of second brick condenser 37.8 7. End of first glass and wood condenser 25.6 S. End of second glass and wood condenser. .; 17.89. End of third glass and wood condenser .... 15.6 10. End of fourth glass and wood c Stock Photo

RM2AJ4TXC–The quicksilver resources of California . 236 QUICKSILVER RESOURCES OF CALIFORNIA. Temperature Determinations as Taken by Mr. J. R. Smedberg,February, iSSo, with Furnace No. 9, New Almaden. DegreesCelsius. 1. Lowest peep-hole (above fireplace) 823^ 2. Next higher 946 3. Next higher 878 4. Topmost peep-hole (near furnace throat). . 372 5. Entrance to first brick condenser* 190.6 6. End of second brick condenser 37.8 7. End of first glass and wood condenser 25.6 S. End of second glass and wood condenser. .; 17.89. End of third glass and wood condenser .... 15.6 10. End of fourth glass and wood c

Transactions . PLANS AND SECTIONS OF THE MODIFIED IDRIA FURNACES Nos. 1 & 2 OF THE KNOX FURN. TO ILLUSTRATE THE PAPER ON THE METALLURGY OF MERC Fis. I. —Furnace No. 5. ?-Ore House. ^—Dump Heaps. —Furnace No. 3. —Bridge. —Furnace No. 4. —Furnace No. 6. —Blower No. 3. ?—Woodpn Flue No. 3. -Blower No. 5. —Wooden Flue No. 5. —Blower No. 6. —Wooden Flue No. 6. —Blower No. 4. —Wooden Flue No. 4. —Collecting Pot. -Fire level in the Furnace. -Bottling Pit. —Steam Pump. —Pot and Pit for Tailing.?. —Settling Tanks. —Drain for the Tanks M. —Steam Boilers. —Road around the Furnaces. —Ketort for working th Stock Photo

RM2AJ5F3J–Transactions . PLANS AND SECTIONS OF THE MODIFIED IDRIA FURNACES Nos. 1 & 2 OF THE KNOX FURN. TO ILLUSTRATE THE PAPER ON THE METALLURGY OF MERC Fis. I. —Furnace No. 5. ?-Ore House. ^—Dump Heaps. —Furnace No. 3. —Bridge. —Furnace No. 4. —Furnace No. 6. —Blower No. 3. ?—Woodpn Flue No. 3. -Blower No. 5. —Wooden Flue No. 5. —Blower No. 6. —Wooden Flue No. 6. —Blower No. 4. —Wooden Flue No. 4. —Collecting Pot. -Fire level in the Furnace. -Bottling Pit. —Steam Pump. —Pot and Pit for Tailing.?. —Settling Tanks. —Drain for the Tanks M. —Steam Boilers. —Road around the Furnaces. —Ketort for working th

. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. FURNACES AND FURNACE LADLES. No. 23ii0. Ladle Furnace, with gauze cover gas burner $3.50 With Cap Nut Regulator for gasoline 30c. extra.Nos. 2231 to 2234, Cast Iron Furnace Ladlesand Detachable Handles. No. 2231. Ladle only, 41^x2?^ $0.40 2232. i%xi% 35 3233. « 4 x2% 25 2234. Ladle Handles, each 25 Nos. 2285 and 2236, Perfected Injector GasFurnace.No. 2235. Size for No. 1 crucible, with crucible .. .|4.50 No. 2336.? 2237. 2238.2239. 2240.2341.3242. 2248. 2244.2245.2246. Size for No. 8 Crucible |7.00 Crucible Fur Stock Photo

RM2AGD7NM–. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. FURNACES AND FURNACE LADLES. No. 23ii0. Ladle Furnace, with gauze cover gas burner $3.50 With Cap Nut Regulator for gasoline 30c. extra.Nos. 2231 to 2234, Cast Iron Furnace Ladlesand Detachable Handles. No. 2231. Ladle only, 41^x2?^ $0.40 2232. i%xi% 35 3233. « 4 x2% 25 2234. Ladle Handles, each 25 Nos. 2285 and 2236, Perfected Injector GasFurnace.No. 2235. Size for No. 1 crucible, with crucible .. .|4.50 No. 2336.? 2237. 2238.2239. 2240.2341.3242. 2248. 2244.2245.2246. Size for No. 8 Crucible |7.00 Crucible Fur

The Gardeners' chronicle : a weekly illustrated journal of horticulture and allied subjects . ^K^ Best Boiler in the Market for Heating a large quantityof Piping, being both powerful and economical. Can be erected by unskilled labour in a feiv hours. No Caulkingrequired. Quickly Repaired in case of breakdown. PATTERN No. I. A, 11 pipes at top, 4 each side of ^ Length. furnace, 8 water-bars J 4feet 6 inch. long B, ,, ,, ,, 6feet 6 inrh. long C, ,, ,, ,, 9 feet 6 inch, long Discount to the Trade. Heating-power in 4-inch pipe. 1.200 feet 1.600 feet 2.000 feet £ s. d13 12 615 2 617 5 0 Above Price Stock Photo

RM2ANCTDD–The Gardeners' chronicle : a weekly illustrated journal of horticulture and allied subjects . ^K^ Best Boiler in the Market for Heating a large quantityof Piping, being both powerful and economical. Can be erected by unskilled labour in a feiv hours. No Caulkingrequired. Quickly Repaired in case of breakdown. PATTERN No. I. A, 11 pipes at top, 4 each side of ^ Length. furnace, 8 water-bars J 4feet 6 inch. long B, ,, ,, ,, 6feet 6 inrh. long C, ,, ,, ,, 9 feet 6 inch, long Discount to the Trade. Heating-power in 4-inch pipe. 1.200 feet 1.600 feet 2.000 feet £ s. d13 12 615 2 617 5 0 Above Price

. Boone County Recorder. L. ADAMSDENTIST Cohen Building Pike Street, Covington, Ky. For Sale. A No. 1 house of six rooms, base-ment, furnace, electric lighted; lo-cation none better, $4,000 — 11,000down. CLAUNCH, feb 9-16 Erlanger, Ky. Farm for Sale. Farm of 42 acres on Hebron pike;7-room house and other out build-ings, 160 fruit trees and blackberrypatch—good rolling land. Inqnireof CHAB. PRABLE, Constance, Kyomchlst Farm for Sale. 124 acres, 6 miles from town, goodbuildings—barn 54x96, boose of sixrooms, one story; wash house andwood honse combined 14x83, orlb lOx80, other outbuildings; lime Stock Photo

RM2AFK4CM–. Boone County Recorder. L. ADAMSDENTIST Cohen Building Pike Street, Covington, Ky. For Sale. A No. 1 house of six rooms, base-ment, furnace, electric lighted; lo-cation none better, $4,000 — 11,000down. CLAUNCH, feb 9-16 Erlanger, Ky. Farm for Sale. Farm of 42 acres on Hebron pike;7-room house and other out build-ings, 160 fruit trees and blackberrypatch—good rolling land. Inqnireof CHAB. PRABLE, Constance, Kyomchlst Farm for Sale. 124 acres, 6 miles from town, goodbuildings—barn 54x96, boose of sixrooms, one story; wash house andwood honse combined 14x83, orlb lOx80, other outbuildings; lime

A catechism on the combustion of coal and the prevention of smoke; a practical treatise . HALF SECTION AND ELEVATIONTOF FRONT.Fig. 19. which is largely unavoidable, may be accounted for as onpage 215. Good boilers, properly set and well managed, will averagenearly the same efficiency, approximating 65 per cent. Q. What are the ordinary furnace dimensions for ahorizontal tubular boiler ? There are no standard dimensions for boiler settings or 218 COMBUSTION OF COAL.. FURNACE DIMENSIONS. 219 •3UOJJ JO ippTjW U fa O 0 7 Oin O1 in OvO 1 0 CO 1 CO 4uojj jo iqSpH * c 0> 0 CO 0 00 O1 CI 1 O 0 CO 1 Stock Photo

RM2AJJ224–A catechism on the combustion of coal and the prevention of smoke; a practical treatise . HALF SECTION AND ELEVATIONTOF FRONT.Fig. 19. which is largely unavoidable, may be accounted for as onpage 215. Good boilers, properly set and well managed, will averagenearly the same efficiency, approximating 65 per cent. Q. What are the ordinary furnace dimensions for ahorizontal tubular boiler ? There are no standard dimensions for boiler settings or 218 COMBUSTION OF COAL.. FURNACE DIMENSIONS. 219 •3UOJJ JO ippTjW U fa O 0 7 Oin O1 in OvO 1 0 CO 1 CO 4uojj jo iqSpH * c 0> 0 CO 0 00 O1 CI 1 O 0 CO 1

Bookkeeping and cost accounting for factories . ve No. of MenInc. Dec. RateInc. Dec. Under Descriptive are the following: 1 Floor and Bench Molders. 2 Machine Molders. 3 Core-Makers, Day-work. 4 Core-Makers, Piece-work. 5 Molders Helpers. 6 Sundry Core-room Laborers. 7 Refining Laborers. 8 Furnace Tenders. 9 Sand Shovelers.10 Grinders. 1 I Cleaners, Filers and Sprue Cutters. 12 Sand Blast Operators. 13 Testers—Rough Castings. 14 Foremen. 15 Miscellaneous.151 Briquetting. Total—Brass Foundry Total—Iron Foundry 27 Foremen, Factory ProductiveDepartments. > 28 Tool Room. -*3 29 Pattern Shop. 3 Stock Photo

RM2AJ1HN4–Bookkeeping and cost accounting for factories . ve No. of MenInc. Dec. RateInc. Dec. Under Descriptive are the following: 1 Floor and Bench Molders. 2 Machine Molders. 3 Core-Makers, Day-work. 4 Core-Makers, Piece-work. 5 Molders Helpers. 6 Sundry Core-room Laborers. 7 Refining Laborers. 8 Furnace Tenders. 9 Sand Shovelers.10 Grinders. 1 I Cleaners, Filers and Sprue Cutters. 12 Sand Blast Operators. 13 Testers—Rough Castings. 14 Foremen. 15 Miscellaneous.151 Briquetting. Total—Brass Foundry Total—Iron Foundry 27 Foremen, Factory ProductiveDepartments. > 28 Tool Room. -*3 29 Pattern Shop. 3

$The quicksilver resources of California . ^^JK »»»»> ?^%»iWo^ >^v>l4**) •-rf- IS ?.%M*VT A^-»vA->«>6 vQt»b ^wW raV.qi^ ^ ^ TR wpyfc^w^*-^ J L JinjJ. ^1 *^ * V 1 ^. j »» i^ (.-{i)Hnbu( iBwniM) .a^iow noiioubsi to ujslq IbtousO. 236 QUICKSILVER RESOURCES OF CALIFORNIA. Temperature Determinations as Taken by Mr. J. R. Smedberg,February, iSSo, with Furnace No. 9, New Almaden. DegreesCelsius. 1. Lowest peep-hole (above fireplace) 823^ 2. Next higher 946 3. Next higher 878 4. Topmost peep-hole (near furnace throat). . 372 5. Entrance to first brick condenser* 190.6 6. End of se Stock Photo$

RM2AJ4W3D–The quicksilver resources of California . ^^JK »»»»> ?^%»iWo^ >^v>l4**) •-rf- IS ?.%M*VT A^-»vA->«>6 vQt»b ^wW raV.qi^ ^ ^ TR wpyfc^w^*-^ J L JinjJ. ^1 *^ * V 1 ^. j »» i^ (.-{i)Hnbu( iBwniM) .a^iow noiioubsi to ujslq IbtousO. 236 QUICKSILVER RESOURCES OF CALIFORNIA. Temperature Determinations as Taken by Mr. J. R. Smedberg,February, iSSo, with Furnace No. 9, New Almaden. DegreesCelsius. 1. Lowest peep-hole (above fireplace) 823^ 2. Next higher 946 3. Next higher 878 4. Topmost peep-hole (near furnace throat). . 372 5. Entrance to first brick condenser* 190.6 6. End of se

. Boiler and radiator : Catalogue No. 1146.. Nipples Front ends tappedHear ends tapped: RECOMMENDED CHIMNEY SIZES Number For small sizes of coal or for deep beds of 1 bX Diameter Height Diam- Height Diam- Height S 89 1011121314 12 7, 12 7o 13 7o 14 77) 15 75 16 100 17 100 13 5013 50 15 SO 16 50 17 60 17 77, 17 75 18 75 17 18 18 35 :i7) 1 40 404) ASBESTOS PLASTERPlaster is furnished that the joints between the sections can be m. TRIMMINGS FURNISHED WITH STEAM BOILEBfl e SPECIAL. Order No. 27 Smith B INo. 27 Smith Boiler Smokeless Furnace for Bituminous Coal Patent Applied For. 00» M :aciu, h. T Stock Photo

RM2AFXJH0–. Boiler and radiator : Catalogue No. 1146.. Nipples Front ends tappedHear ends tapped: RECOMMENDED CHIMNEY SIZES Number For small sizes of coal or for deep beds of 1 bX Diameter Height Diam- Height Diam- Height S 89 1011121314 12 7, 12 7o 13 7o 14 77) 15 75 16 100 17 100 13 5013 50 15 SO 16 50 17 60 17 77, 17 75 18 75 17 18 18 35 :i7) 1 40 404) ASBESTOS PLASTERPlaster is furnished that the joints between the sections can be m. TRIMMINGS FURNISHED WITH STEAM BOILEBfl e SPECIAL. Order No. 27 Smith B INo. 27 Smith Boiler Smokeless Furnace for Bituminous Coal Patent Applied For. 00» M :aciu, h. T

. Glasses for protecting eyes from injurious radiations.. Fig. 12) transmits about 54 per cent of the infra-red radiation from a furnace heated to 10500 C. This is not a verymarked absorption when compared with the sage-green glass justdescribed. For the effectiveness in absorbing the ultra-violet, seeTable 2.. s.o^u. Fig, Crookess glasses: A, light (1=1.96 mm); B, dark (t= 2.00 mm); C, ferrous No.30, sage-green(t= 1.98 mm).D, Schotts black glass (t=3.6 mm). E, white crown glass (t= 2.18 mm). F, blue-green glass (A, O. C.Lab. No. 59; t= 1.93 mm). (A and B are Crooksess neutral-tint glass.) Oth Stock Photo

RM2AFKTGF–. Glasses for protecting eyes from injurious radiations.. Fig. 12) transmits about 54 per cent of the infra-red radiation from a furnace heated to 10500 C. This is not a verymarked absorption when compared with the sage-green glass justdescribed. For the effectiveness in absorbing the ultra-violet, seeTable 2.. s.o^u. Fig, Crookess glasses: A, light (1=1.96 mm); B, dark (t= 2.00 mm); C, ferrous No.30, sage-green(t= 1.98 mm).D, Schotts black glass (t=3.6 mm). E, white crown glass (t= 2.18 mm). F, blue-green glass (A, O. C.Lab. No. 59; t= 1.93 mm). (A and B are Crooksess neutral-tint glass.) Oth

Transactions . FiG. 26.—Details of steam blower, Hughes producer.. Fig. 27.—Blower regxtlator, Duff producer. G. S. BROOKS AND C. C. NITCHIE 887 the nipple. The ordinary blower, after a few months of service, is noteasily taken down for cleaning, as it is always rusted. A piping arrange-ment should be put in that can be quickly and easily removed and thenipple cleaned. MINERAL POINT ZINC CO. NASSAU PLANT SPELTER DEPARTMENT DAILY REPORT OF GAS ANALYSIS FOR ?e)>. 1, 191 5. FURNACE NO. FURNACE NO. FURNACE NO. JLOL.IJL 6.0 6*0 ?1»A24...4 26u24,0 i5i»6 8.10 12 6»Q .4.4 4^ 29.426,4 26.8 ..10^ . Stock Photo

RM2AJGBPT–Transactions . FiG. 26.—Details of steam blower, Hughes producer.. Fig. 27.—Blower regxtlator, Duff producer. G. S. BROOKS AND C. C. NITCHIE 887 the nipple. The ordinary blower, after a few months of service, is noteasily taken down for cleaning, as it is always rusted. A piping arrange-ment should be put in that can be quickly and easily removed and thenipple cleaned. MINERAL POINT ZINC CO. NASSAU PLANT SPELTER DEPARTMENT DAILY REPORT OF GAS ANALYSIS FOR ?e)>. 1, 191 5. FURNACE NO. FURNACE NO. FURNACE NO. JLOL.IJL 6.0 6*0 ?1»A24...4 26u24,0 i5i»6 8.10 12 6»Q .4.4 4^ 29.426,4 26.8 ..10^ .

. Transactions. eaving 45 Economizer No. 2, area entering, 83 sq. ft.; leaving 45 Economizer No. 3, area entering, 83 sq, ft.; leaving 45 Economizer No. 4; area entering, 83 sq. ft.; leaving 45 Underground flue 115 Stack, 12 ft. 6 in., 171 ft. IJ^ in. high, base. 123Smalle.st area for passing gases, 14 sq. ft; largest area 123 California crude oil used, S. G., 0.966.Weight per barrel of 42 gal., m^ lb.Heat-content per lb., 18,700 B.t.n.Economizers, Green Economizer Co., 288 tubes.Seven oil-burners per furnace. 0.43 lb. of steam required to atomize 1 lb. of oil.Total travel of gases in furnace Stock Photo

RM2AFN4MH–. Transactions. eaving 45 Economizer No. 2, area entering, 83 sq. ft.; leaving 45 Economizer No. 3, area entering, 83 sq, ft.; leaving 45 Economizer No. 4; area entering, 83 sq. ft.; leaving 45 Underground flue 115 Stack, 12 ft. 6 in., 171 ft. IJ^ in. high, base. 123Smalle.st area for passing gases, 14 sq. ft; largest area 123 California crude oil used, S. G., 0.966.Weight per barrel of 42 gal., m^ lb.Heat-content per lb., 18,700 B.t.n.Economizers, Green Economizer Co., 288 tubes.Seven oil-burners per furnace. 0.43 lb. of steam required to atomize 1 lb. of oil.Total travel of gases in furnace

. Transactions. ^ J ^ ^ , ^ ^ - »t/4rrt-»Ui ^.„„ ? —1 r- ^— /3eo — r— ^r^f^^^^ Omo L OS 6 9 /2 /S /S 2/ 24 Z7 3a 33 M S9 ?^r AS ^ S/ ^4 S7 te Srays £7a/Sl^st- /^//Vi-ryj Fig. 3.—Test 2. Curves showing Difference in Temperature between Pointsin Hot-Blast Main, G Furnace, while Stove was on Blast, Nov. 6, 1913. Pyrometer A, between stove No. 5 and hot-blast valve. Pyrometer B, at junction of main and bustle pipe.. a A 3 /2 /£ ^o Z* 26 32 Se 4j3 4^ 48 SZ Fig. 4.—Test 3. Curves showing Difference in Temperature between PointsIN Hot-Blast Main, G Furnace, while Stove was on Blast, Nov. 10, Stock Photo

RM2AFKG4J–. Transactions. ^ J ^ ^ , ^ ^ - »t/4rrt-»Ui ^.„„ ? —1 r- ^— /3eo — r— ^r^f^^^^ Omo L OS 6 9 /2 /S /S 2/ 24 Z7 3a 33 M S9 ?^r AS ^ S/ ^4 S7 te Srays £7a/Sl^st- /^//Vi-ryj Fig. 3.—Test 2. Curves showing Difference in Temperature between Pointsin Hot-Blast Main, G Furnace, while Stove was on Blast, Nov. 6, 1913. Pyrometer A, between stove No. 5 and hot-blast valve. Pyrometer B, at junction of main and bustle pipe.. a A 3 /2 /£ ^o Z* 26 32 Se 4j3 4^ 48 SZ Fig. 4.—Test 3. Curves showing Difference in Temperature between PointsIN Hot-Blast Main, G Furnace, while Stove was on Blast, Nov. 10,

. Transactions. 12345678 iTlME OF CARBO^IIZING, IM HOURS 8LB. Steel No. 8 Carbonized at 1,650°. 1st quench from furnace at 1,650° (Scler. hardne&s ^ H; Brin. hardness ^ /).2d quench at 1,325° (Scler. hardness = J; Brin. hardness = K). 5 0.080 80 Z U1 - 0.070 J^ 70 --0.060? 0.050§0.040 6050 400 1300 S:40 x200 o l5 0.030 30 -i :ioo. o ou. 0.020 o: 20 -r 0.010 d 10 t 0.000 0 2 3 4 5 C 7 ° TIME OF CARBONIZING, IN HOURS * 8LS. Steel No. 8 Carboxized at 1,650°, Scler. hardness = F; Brin. hardnes.s = O. Quenched at 1,325°hardness = J; Brin. hardness = A). (Scler. CARBONIZATION IN CASE-HARDENED STEEL Stock Photo

RM2AFPNN1–. Transactions. 12345678 iTlME OF CARBO^IIZING, IM HOURS 8LB. Steel No. 8 Carbonized at 1,650°. 1st quench from furnace at 1,650° (Scler. hardne&s ^ H; Brin. hardness ^ /).2d quench at 1,325° (Scler. hardness = J; Brin. hardness = K). 5 0.080 80 Z U1 - 0.070 J^ 70 --0.060? 0.050§0.040 6050 400 1300 S:40 x200 o l5 0.030 30 -i :ioo. o ou. 0.020 o: 20 -r 0.010 d 10 t 0.000 0 2 3 4 5 C 7 ° TIME OF CARBONIZING, IN HOURS * 8LS. Steel No. 8 Carboxized at 1,650°, Scler. hardness = F; Brin. hardnes.s = O. Quenched at 1,325°hardness = J; Brin. hardness = A). (Scler. CARBONIZATION IN CASE-HARDENED STEEL

. Boiler and radiator : Catalogue No. 1146.. 65 70 NO 36 SMITH BOILER WITH SMOKELESS FURNACE FOR BITUMINOUS COAL REGULAR TAPPINGS* SUPPLY DRUM BumSect ber Size of Tappings, inches 1213 15161718 Water Number of Tappings 12 1 2 13 1 .2 14 1.2 15 1 . .18 RETURN DRUMSSteam Boilers: Tapped lor 2 inch I k-Nut Nipples Top ami I,.,to.in ;il opposite . ioU tapped 2 in From endsta 1 2.4 is I X™ Rear ends tapped 3 in Tapped tor 2 inch Lock-Nut Nipples topped one 24 in. one5 in From ci.dV tapped one 24 in. one 6 in Rear ,-mls ta,.pcd one 2 4 in. one 6 ir. Top tapped one 6 ie TRIMMINGS FURNISHED WITH STEA Stock Photo

RM2AFXHA3–. Boiler and radiator : Catalogue No. 1146.. 65 70 NO 36 SMITH BOILER WITH SMOKELESS FURNACE FOR BITUMINOUS COAL REGULAR TAPPINGS* SUPPLY DRUM BumSect ber Size of Tappings, inches 1213 15161718 Water Number of Tappings 12 1 2 13 1 .2 14 1.2 15 1 . .18 RETURN DRUMSSteam Boilers: Tapped lor 2 inch I k-Nut Nipples Top ami I,.,to.in ;il opposite . ioU tapped 2 in From endsta 1 2.4 is I X™ Rear ends tapped 3 in Tapped tor 2 inch Lock-Nut Nipples topped one 24 in. one5 in From ci.dV tapped one 24 in. one 6 in Rear ,-mls ta,.pcd one 2 4 in. one 6 ir. Top tapped one 6 ie TRIMMINGS FURNISHED WITH STEA

. Boiler and radiator : Catalogue No. 1146.. LVE SIZES Work „? I,.-,,,,. Number SGr aZL Sections L 0-25 25-30 Size Size We er Relief 13 ine be. sq. ft. S-,f.-t inc hea 2 2 2H 13t 60 60 42 l*t 60 60 48 20.00 3H3M 3A 1618 60BO 48f 20.0022.5022.5025.00 3A 3 3.;3H 3K ^ v 32.50 iHt i,t 4 >. 60 Smith Boilers NO. 60 SMITH BOILER WITH SMOKELESS FURNACE FOR BITUMINOUS COAL REGULAR TAPPINGS * SUPPLY DRUM Nipples . .12 i 1 tapped Sections Size of Tappings, in. B 121314IS16171819 22 22333333 RETURN DRUM Tapped for 2 inch LcFront ends tapped. Undersides tapped. CHIMNEY SIZES RECOMMENDED FIRE TOOLS FU Stock Photo

RM2AFXG16–. Boiler and radiator : Catalogue No. 1146.. LVE SIZES Work „? I,.-,,,,. Number SGr aZL Sections L 0-25 25-30 Size Size We er Relief 13 ine be. sq. ft. S-,f.-t inc hea 2 2 2H 13t 60 60 42 l*t 60 60 48 20.00 3H3M 3A 1618 60BO 48f 20.0022.5022.5025.00 3A 3 3.;3H 3K ^ v 32.50 iHt i,t 4 >. 60 Smith Boilers NO. 60 SMITH BOILER WITH SMOKELESS FURNACE FOR BITUMINOUS COAL REGULAR TAPPINGS * SUPPLY DRUM Nipples . .12 i 1 tapped Sections Size of Tappings, in. B 121314IS16171819 22 22333333 RETURN DRUM Tapped for 2 inch LcFront ends tapped. Undersides tapped. CHIMNEY SIZES RECOMMENDED FIRE TOOLS FU

1921 Des Moines and Polk County, Iowa, City Directory . ing Co res 2718 Scott avMcPherson Wm E furnace mn rest 612 so e 28th ct I McPherson Wm E mtrmn res 1750 Capitol av f McQuade Thos miner S D M Goaf Co res so w 7th and Davis avMcQuaid Ella E (wid Chas W) res 1464 e 14thMcQuaid Letha J typist Soutliern Surety Co bds 1464 e 14thMcQuaid Mary elk rms 1323 Ca )itolMcQuaid Thos miner res 512 Davis avMcQuean Elsia Mrs bkpr rms 1233 IQthMcQueeney W Andw horseran Fair Grounds ^ McQueer Delia (c) hlpr Barnes Caie- teria No 1 bds 1080 e Grand aVMcQuerry Lois (c) porter Davis Mo-tor Sales Co rms 1010 Stock Photo

RM2AJJYJ7–1921 Des Moines and Polk County, Iowa, City Directory . ing Co res 2718 Scott avMcPherson Wm E furnace mn rest 612 so e 28th ct I McPherson Wm E mtrmn res 1750 Capitol av f McQuade Thos miner S D M Goaf Co res so w 7th and Davis avMcQuaid Ella E (wid Chas W) res 1464 e 14thMcQuaid Letha J typist Soutliern Surety Co bds 1464 e 14thMcQuaid Mary elk rms 1323 Ca )itolMcQuaid Thos miner res 512 Davis avMcQuean Elsia Mrs bkpr rms 1233 IQthMcQueeney W Andw horseran Fair Grounds ^ McQueer Delia (c) hlpr Barnes Caie- teria No 1 bds 1080 e Grand aVMcQuerry Lois (c) porter Davis Mo-tor Sales Co rms 1010

. Transactions. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8HB. Steel No. 8 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin, hardness = /)2d quench at 1,325° (Scler. hardness = J; Brin. hardness = A). 364 CARBONIZATION IX CASE-HARDENED STEEL. No. 8HS. steel No. 8. Carbonized at 1.750°.1st Quench at 1,325°. Original. 1st Quench. 8H0. Steel No. 8. Carbonized at 1,750°. 1st Quenchat 1,575° ; 2d Quench at 1,325°.. No. Original. 1st Quench. 2d Quench. 1 Brin. Scle.146 Brin. Scle. Brin. Sole. 407 78 208 62 2 149 382 78 233 70 ,S 153 425 78 208 70 4 1.55 508 72 208 74 5 Stock Photo

RM2AFPN4R–. Transactions. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8HB. Steel No. 8 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin, hardness = /)2d quench at 1,325° (Scler. hardness = J; Brin. hardness = A). 364 CARBONIZATION IX CASE-HARDENED STEEL. No. 8HS. steel No. 8. Carbonized at 1.750°.1st Quench at 1,325°. Original. 1st Quench. 8H0. Steel No. 8. Carbonized at 1,750°. 1st Quenchat 1,575° ; 2d Quench at 1,325°.. No. Original. 1st Quench. 2d Quench. 1 Brin. Scle.146 Brin. Scle. Brin. Sole. 407 78 208 62 2 149 382 78 233 70 ,S 153 425 78 208 70 4 1.55 508 72 208 74 5

. Transactions. TIME OF CARBONIZING, IN HOURS 2HD. Steel No. 2 Carbonized at 1,750°.1st quench at 1,650° (Scler. hardness = H; Brin. hardness := /). 2d quenchat 1,400° (Scler. hardness = J; Brin. hardness = K). 362 CARBONIZATION IN CASE-HARDENED STEEL. 8LB. steel No. 8. Carbonized at 1,650°, 1st Quenchfrom Furnace at 1,650°; 2d Quench at 1,325°. No. Original. 1st Quench. 2d Quench. Brin. Scle. Brin. Scle. Brin. Scle. 1 151 27 285 53 213 40 2 144 27 338 68 199 53 3 149 26 246 71 203 65 4 149 26 352 70 218 72 5 154 25 388 65 2.35 74 fi 144 25 382 64 242 70 7 144 25 447 60 251 72 S 147 25 407 60 Stock Photo

RM2AFPNXG–. Transactions. TIME OF CARBONIZING, IN HOURS 2HD. Steel No. 2 Carbonized at 1,750°.1st quench at 1,650° (Scler. hardness = H; Brin. hardness := /). 2d quenchat 1,400° (Scler. hardness = J; Brin. hardness = K). 362 CARBONIZATION IN CASE-HARDENED STEEL. 8LB. steel No. 8. Carbonized at 1,650°, 1st Quenchfrom Furnace at 1,650°; 2d Quench at 1,325°. No. Original. 1st Quench. 2d Quench. Brin. Scle. Brin. Scle. Brin. Scle. 1 151 27 285 53 213 40 2 144 27 338 68 199 53 3 149 26 246 71 203 65 4 149 26 352 70 218 72 5 154 25 388 65 2.35 74 fi 144 25 382 64 242 70 7 144 25 447 60 251 72 S 147 25 407 60

. The Artizan. inary forge mixture) : REGENERATIVE GAS FURNACE.Table No. 1.First Shift. Date. 1867. May 27 28 Nos. ofHeat. Timecharged. 5. „ 256„ 45 8 „ 8 9 „ 15 10 „ 20 11 „ 40 First Ballout. 6 „ 32 7 „ 509 „ 9 10 „ 7 11 „ 22 12 „ 46 MetalCharged. Second Shift- 1 , 48 2 „ 50 3 „ 565 „ 06„ 57 „ 20 2„ 47 3 „ 47 4 „ 53 6 „ 3 7 ., 12 8 ., 15 Third Shift lb. 410 433430425426 412 428420426432425420 Yield. lb.392 396 410 426 430 412 410 414418417407422 1 9 „ 10 10 „ 15 423 414 2 10 „ 25 11 „ 30 422 412 3 11 „ 35 12 „ 40 420 420 4 12 „ 45 2 „ 0 430 410 6 2 „ 10 3 „ 10 424 411 t> 3„ 16 4 „ 20 420 4 Stock Photo

RM2AGEJG4–. The Artizan. inary forge mixture) : REGENERATIVE GAS FURNACE.Table No. 1.First Shift. Date. 1867. May 27 28 Nos. ofHeat. Timecharged. 5. „ 256„ 45 8 „ 8 9 „ 15 10 „ 20 11 „ 40 First Ballout. 6 „ 32 7 „ 509 „ 9 10 „ 7 11 „ 22 12 „ 46 MetalCharged. Second Shift- 1 , 48 2 „ 50 3 „ 565 „ 06„ 57 „ 20 2„ 47 3 „ 47 4 „ 53 6 „ 3 7 ., 12 8 ., 15 Third Shift lb. 410 433430425426 412 428420426432425420 Yield. lb.392 396 410 426 430 412 410 414418417407422 1 9 „ 10 10 „ 15 423 414 2 10 „ 25 11 „ 30 422 412 3 11 „ 35 12 „ 40 420 420 4 12 „ 45 2 „ 0 430 410 6 2 „ 10 3 „ 10 424 411 t> 3„ 16 4 „ 20 420 4

. Transactions. 3 4 5 6 TIME OF CARBONIZING, IN HOURS 2LD. Steel No. 2 Carbonized at 1,650°.1st quench at 1,650° (Scler. hardness = H; Brin. hardness = /). 2d quenchat 1,400° (Scler. hardness = J; Brin. hardness = A). 0.130 120 0.110 110 0.100 LOO 0.090 to UJ 90 0.080 z Q(X 80 0.070 CL O 60 ao5o (JO 50 0.040 IX.LU.1 40 0.030 30 0.020 20 0.010 10 0.000 0. 2 3 4 5 6 TIME OF CARBONIZING ti HOURS 2HB. Steel No. 2 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin. hardness = /). CAKBONIZATION IN CASE-HARDE:*ED STEEL. 361 2HS. 2HD. Steel No. 2. Carbonized at 1,750°. Stock Photo

RM2AFPPDR–. Transactions. 3 4 5 6 TIME OF CARBONIZING, IN HOURS 2LD. Steel No. 2 Carbonized at 1,650°.1st quench at 1,650° (Scler. hardness = H; Brin. hardness = /). 2d quenchat 1,400° (Scler. hardness = J; Brin. hardness = A). 0.130 120 0.110 110 0.100 LOO 0.090 to UJ 90 0.080 z Q(X 80 0.070 CL O 60 ao5o (JO 50 0.040 IX.LU.1 40 0.030 30 0.020 20 0.010 10 0.000 0. 2 3 4 5 6 TIME OF CARBONIZING ti HOURS 2HB. Steel No. 2 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin. hardness = /). CAKBONIZATION IN CASE-HARDE:*ED STEEL. 361 2HS. 2HD. Steel No. 2. Carbonized at 1,750°.

. Transactions. dness = K).VOL. XLIV.—22 360 CARBONIZATION IN CASE-HARDENED STEEL. 2LD. 2HB. Steel No. 2. Carbonized at 1,650°. 1st Quench ^ Steel No. 2. Carbonized at 1,750°. 1st Quenchat 1,650°; 2d Quench at 1,400°. ; from Furnace at 1,750° ; 2d Quench at 1,400°. Original, i 1st Quench. 2d Quench. No. 10 Brin. Scle. ! Brin. Scle. ! Brin. Scle. 128 248 130 I 271 135 I 304 126 I 260 135 i 344 136 426 135 ! 470 136 I 520 131 I 486 136 I 496 68 I 211 68 201 78 I 188 68 : 183 78 196 78 1 213 74 I 37578 268 75 I 25178 331 No. 68 1 70 2 78 3 70 4 76 5 76 6 78 7 62 8 82 9 80 10 Original. Brin. Scle. Stock Photo

RM2AFPPJW–. Transactions. dness = K).VOL. XLIV.—22 360 CARBONIZATION IN CASE-HARDENED STEEL. 2LD. 2HB. Steel No. 2. Carbonized at 1,650°. 1st Quench ^ Steel No. 2. Carbonized at 1,750°. 1st Quenchat 1,650°; 2d Quench at 1,400°. ; from Furnace at 1,750° ; 2d Quench at 1,400°. Original, i 1st Quench. 2d Quench. No. 10 Brin. Scle. ! Brin. Scle. ! Brin. Scle. 128 248 130 I 271 135 I 304 126 I 260 135 i 344 136 426 135 ! 470 136 I 520 131 I 486 136 I 496 68 I 211 68 201 78 I 188 68 : 183 78 196 78 1 213 74 I 37578 268 75 I 25178 331 No. 68 1 70 2 78 3 70 4 76 5 76 6 78 7 62 8 82 9 80 10 Original. Brin. Scle.

. Transactions. 2 3 4 5 o TIME OF CARBONIZING, IN HOURS 2LB. Steel No. 2 Carbonized at 1,650°.1st quench from furnace at 1,650° (Scler. hardness = H; Brin. hardness — I).2d quench at 1,400° (Scler. hardness = J; Brin. hardness ^ K). V, 0.100 100 500 o 0.090 (/) 90 z LJJ ^ 0.080 Z 80 z ri tr ^3 0.070 < X 70 ^ 0.060 LU 60 g 0.050 O 50 CO (/) % 0.O4O o 40 o III ^ 0.030° 0.020 -Jo 3020 t 0.010 10 LU Q 0.000 0. 1 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 2LS. Steel No. 2 Carbonized at 1,650°.(Scler. hardness = F; Brin. hardness = G). Quenched at 1,400° (Scler.hardness = J; Brin. hardness = K).VOL. Stock Photo

RM2AFPPYC–. Transactions. 2 3 4 5 o TIME OF CARBONIZING, IN HOURS 2LB. Steel No. 2 Carbonized at 1,650°.1st quench from furnace at 1,650° (Scler. hardness = H; Brin. hardness — I).2d quench at 1,400° (Scler. hardness = J; Brin. hardness ^ K). V, 0.100 100 500 o 0.090 (/) 90 z LJJ ^ 0.080 Z 80 z ri tr ^3 0.070 < X 70 ^ 0.060 LU 60 g 0.050 O 50 CO (/) % 0.O4O o 40 o III ^ 0.030° 0.020 -Jo 3020 t 0.010 10 LU Q 0.000 0. 1 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 2LS. Steel No. 2 Carbonized at 1,650°.(Scler. hardness = F; Brin. hardness = G). Quenched at 1,400° (Scler.hardness = J; Brin. hardness = K).VOL.

. Transactions. teel No. 8. Carbonized at 1,650° . 1st Quench Steel No. 8. Carbonized at 1,750°. 1st Quench atl ,575° ; 2d Quench at 1,325°. from Furnace at 1,750°: 2d Quench at 1,325°. No. Original. 1st Quench. 2d Quench. No. Original. 1st Quench. 2d Quench. Brin. Sole. Brin. Scle. Brin. Scle. Briu. Scle. Brin. Scle. Brin. Scle. 1 151 25 396 70 221 46 1 154 32 315 72 203 56 2 Inl 28 407 72 201 62 2 147 30 326 68 211 68 3 154 28 398 73 201 60 3 142 29 366 68 218 73 4 155 28 438 75 206 64 4 139 30 398 57 255 72 5 160 28 470 75 196 72 5 147 28 466 50 251 75 6 151 28 447 72 201 70 6 142 30 447 50 Stock Photo

RM2AFPNF3–. Transactions. teel No. 8. Carbonized at 1,650° . 1st Quench Steel No. 8. Carbonized at 1,750°. 1st Quench atl ,575° ; 2d Quench at 1,325°. from Furnace at 1,750°: 2d Quench at 1,325°. No. Original. 1st Quench. 2d Quench. No. Original. 1st Quench. 2d Quench. Brin. Sole. Brin. Scle. Brin. Scle. Briu. Scle. Brin. Scle. Brin. Scle. 1 151 25 396 70 221 46 1 154 32 315 72 203 56 2 Inl 28 407 72 201 62 2 147 30 326 68 211 68 3 154 28 398 73 201 60 3 142 29 366 68 218 73 4 155 28 438 75 206 64 4 139 30 398 57 255 72 5 160 28 470 75 196 72 5 147 28 466 50 251 75 6 151 28 447 72 201 70 6 142 30 447 50

. Annual report of the New Jersey State Board of Education. ashington (borough) OXFORD. Oxford Furnace Pittengerville Little York., 1,300 00 11,000 00600 00 $2,300 00600 00 251 69 195 00 :::::: .i:.;;;; 12 33 ^S 94 1>* 67 2S 90 1 105 82 30 00 so o6 2 49 Paces 68 00 6,130 23 2,115 09 350 00444 35359 92200 00350 00355 47 2,0.59 74 3,212 62 448 79350 00350 00 630 00950 0060 00 630 001,650 00 60 00100 00 51 UO100 00 6,760 23 3,765 09 410 no.544 35410 92300 003.50 00355 47 2,370 74 5,212 62 .548 79350 00475 00 490 15 700 00 MANSFIELD. 100 0051 00100 00 84 56 9 92 17 24 56 14 SO 251 00 2,000 00 1 Stock Photo

RM2AFT6F1–. Annual report of the New Jersey State Board of Education. ashington (borough) OXFORD. Oxford Furnace Pittengerville Little York., 1,300 00 11,000 00600 00 $2,300 00600 00 251 69 195 00 :::::: .i:.;;;; 12 33 ^S 94 1>* 67 2S 90 1 105 82 30 00 so o6 2 49 Paces 68 00 6,130 23 2,115 09 350 00444 35359 92200 00350 00355 47 2,0.59 74 3,212 62 448 79350 00350 00 630 00950 0060 00 630 001,650 00 60 00100 00 51 UO100 00 6,760 23 3,765 09 410 no.544 35410 92300 003.50 00355 47 2,370 74 5,212 62 .548 79350 00475 00 490 15 700 00 MANSFIELD. 100 0051 00100 00 84 56 9 92 17 24 56 14 SO 251 00 2,000 00 1

. Transactions. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8LD. Steel No. 8 Carbonized at 1,650°.1st quench at 1,575° (Scler. hardness = H; Brin. hardness = /). 2d quenchat 1,325° (Scler. hardness = J; Brin. hardness = K). 0.110 110 [30.100 100 500 I 0.090 en 90 z 0.080 7 80 i^m — a UJ O 0.070 z Ol < X 70 z Q ii 0.060 z UJ a. 60 ^ 300 §0,050 Oo 50 j a: in UJ S 0.040 O 40 ?200 oo.aM ai j(1 30 X t/i 1-0.020 0- 20 100 Q 0.010 10 0.000 0 0. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8HB. Steel No. 8 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin, hardness = /)2d q Stock Photo

RM2AFPNAE–. Transactions. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8LD. Steel No. 8 Carbonized at 1,650°.1st quench at 1,575° (Scler. hardness = H; Brin. hardness = /). 2d quenchat 1,325° (Scler. hardness = J; Brin. hardness = K). 0.110 110 [30.100 100 500 I 0.090 en 90 z 0.080 7 80 i^m — a UJ O 0.070 z Ol < X 70 z Q ii 0.060 z UJ a. 60 ^ 300 §0,050 Oo 50 j a: in UJ S 0.040 O 40 ?200 oo.aM ai j(1 30 X t/i 1-0.020 0- 20 100 Q 0.010 10 0.000 0 0. 2 3 4 5 6 TIME OF CARBONIZING, IN HOURS 8HB. Steel No. 8 Carbonized at 1,750°.1st quench from furnace at 1,750° (Scler. hardness = H; Brin, hardness = /)2d q

. Industrial Education Magazine . Stewart No. 14 OVEN FURNACE For High Speed orCarbon Steel Size of opening, 6xl0 Depth, 15 Floor space, 34x36 Gas and air connections, % Shipping weight, 1210 lbs.. No. Stewart2 OVEN FURNACE For Carbonizing Annealingand Heat Treating Size of opening, 8xl4Depth of chamber, 18Floor space, 36x40Gas and air connections, 1 vShipping weight, 1650 lbs. Stock Photo

RM2CDG9RR–. Industrial Education Magazine . Stewart No. 14 OVEN FURNACE For High Speed orCarbon Steel Size of opening, 6xl0 Depth, 15 Floor space, 34x36 Gas and air connections, % Shipping weight, 1210 lbs.. No. Stewart2 OVEN FURNACE For Carbonizing Annealingand Heat Treating Size of opening, 8xl4Depth of chamber, 18Floor space, 36x40Gas and air connections, 1 vShipping weight, 1650 lbs.

. Industrial Education Magazine . STEWART No. 27 OVEN FURNACE For Annealing, Carbonizing andHardening High Speed Steel Opening, 6xl2; depth, 18 Floor space, 36x40 Gas and air connections, 1% Shipping weight, 1450 lbs. For gas or oil fuel. STEWART No. 1 OVEN FURNACE For Carbonizing, Annealing andHardening High Speed Steel Opening, 5x9; depth, 13KEloor space, 28x28Gas and air connections, IXShipping weight, 1000 lbs.For gas or oil fuel Stock Photo

RM2CDFPEX–. Industrial Education Magazine . STEWART No. 27 OVEN FURNACE For Annealing, Carbonizing andHardening High Speed Steel Opening, 6xl2; depth, 18 Floor space, 36x40 Gas and air connections, 1% Shipping weight, 1450 lbs. For gas or oil fuel. STEWART No. 1 OVEN FURNACE For Carbonizing, Annealing andHardening High Speed Steel Opening, 5x9; depth, 13KEloor space, 28x28Gas and air connections, IXShipping weight, 1000 lbs.For gas or oil fuel

. Journal of electricity. pendent heat radiating properties. A plurality of electrodesextend through the furnace wall into contact with the orecontained in the furnace for the purpose of producing arcswithin the furnace, and a switch is arranged to divert thecurrent from the heating coil to the electrodes, the switch be-ing constructed so that it closes the circuit through the elec-trodes and the body of ore before it opens the circuit throughthe heating coil. Voltage RegulatorPatent No. 1,252,451, issued to Charles H. Kicklighter ofPasadena, California, and assigned to Westinghouse Electrican Stock Photo

RM2CEKJG0–. Journal of electricity. pendent heat radiating properties. A plurality of electrodesextend through the furnace wall into contact with the orecontained in the furnace for the purpose of producing arcswithin the furnace, and a switch is arranged to divert thecurrent from the heating coil to the electrodes, the switch be-ing constructed so that it closes the circuit through the elec-trodes and the body of ore before it opens the circuit throughthe heating coil. Voltage RegulatorPatent No. 1,252,451, issued to Charles H. Kicklighter ofPasadena, California, and assigned to Westinghouse Electrican

. Development of a method for the microscopic study of metals at elevated ranges of temperature . tz tube wound with platinum wireconstituted the heating element. A thin sheet of platinum withaperture served to protect the glass bottom of the apparatus frombeat radiated by the hot section. The author studied with this app-aratus the transformation of auctenite to sorlkite, but although hisresults were very promising, no definite statements coul-; be made. II APr-RATUS USKI. 1. Construction of Furnace. The furnace, Plate 1, was constructed in two parts andarranged so that the heating element co Stock Photo

RM2CDE6NB–. Development of a method for the microscopic study of metals at elevated ranges of temperature . tz tube wound with platinum wireconstituted the heating element. A thin sheet of platinum withaperture served to protect the glass bottom of the apparatus frombeat radiated by the hot section. The author studied with this app-aratus the transformation of auctenite to sorlkite, but although hisresults were very promising, no definite statements coul-; be made. II APr-RATUS USKI. 1. Construction of Furnace. The furnace, Plate 1, was constructed in two parts andarranged so that the heating element co

. The Albany directory for the year ... : containing a general directory of the citizens, a business directory, and other miscellaneous matter . t safety. The Bheumatic and Neuralgic Compound has been taken by hundreds of persons forScrofulous Humors with great benefit. PRINCIPAL DEPOT, No. 1 SALEM ST., BOSTON. WHOLESALE AGENTS FOR NEW YORK. jP. C. JTEEES Sf Co., 115 Franklin Street, For sale by all Druggists and Apothecaries. None genuine unless signed by Chas. F. Gardiner. TO STOVE AND LANTERN MANUFACTURERS. SHEET ISINGLASS OR MICA, For Compass Cards, Lanterns of all kinds, Stove and Furnace Stock Photo

RM2CJ2H6Y–. The Albany directory for the year ... : containing a general directory of the citizens, a business directory, and other miscellaneous matter . t safety. The Bheumatic and Neuralgic Compound has been taken by hundreds of persons forScrofulous Humors with great benefit. PRINCIPAL DEPOT, No. 1 SALEM ST., BOSTON. WHOLESALE AGENTS FOR NEW YORK. jP. C. JTEEES Sf Co., 115 Franklin Street, For sale by all Druggists and Apothecaries. None genuine unless signed by Chas. F. Gardiner. TO STOVE AND LANTERN MANUFACTURERS. SHEET ISINGLASS OR MICA, For Compass Cards, Lanterns of all kinds, Stove and Furnace

. Official proceedings . ou see the standard grades; puherizer,stoker, stove, furnace, jumbo furnace and Domestic Block. The distribution of our product is rather broad, extendingfrom the Middlewest to New England and to some foreigncountries.. Champion No. 1 Plant. This is a view of a modern preparation plant, which youcan realize makes a modern plant of a few years ago sufferby comparison. PRESIDENT: 1 am sure we have all enjoyed seeing thispicture and I imagine some of us have questions we wouldlike to ask. It is a very interesting subject. A e could not run 63 most of our industrial works Stock Photo

RM2CH4F6X–. Official proceedings . ou see the standard grades; puherizer,stoker, stove, furnace, jumbo furnace and Domestic Block. The distribution of our product is rather broad, extendingfrom the Middlewest to New England and to some foreigncountries.. Champion No. 1 Plant. This is a view of a modern preparation plant, which youcan realize makes a modern plant of a few years ago sufferby comparison. PRESIDENT: 1 am sure we have all enjoyed seeing thispicture and I imagine some of us have questions we wouldlike to ask. It is a very interesting subject. A e could not run 63 most of our industrial works

. Transactions. ion, was madeup of 12 plane sides and divided into 12 equal spaces by parti-tions made of thin wood. In using this model, no experiments were tried with coke,or stone. A study of the distribution of the ore, it wasthought, would be a guide as to the distribution of the lime-stone and coke. The ore-charge used was a proportional partof the charge then being filled into Furnace No. 5 of the Illi-nois Steel Co. corresponding to the area of the hopper of themodel, when compared with a furnace of twice the diameter,and consisted of: Ore. Pounds. Fayal, 1,937 Lake, ......... 655 Pewa Stock Photo

RM2CETG19–. Transactions. ion, was madeup of 12 plane sides and divided into 12 equal spaces by parti-tions made of thin wood. In using this model, no experiments were tried with coke,or stone. A study of the distribution of the ore, it wasthought, would be a guide as to the distribution of the lime-stone and coke. The ore-charge used was a proportional partof the charge then being filled into Furnace No. 5 of the Illi-nois Steel Co. corresponding to the area of the hopper of themodel, when compared with a furnace of twice the diameter,and consisted of: Ore. Pounds. Fayal, 1,937 Lake, ......... 655 Pewa

. Transactions. J 0= 00£ o^;-| 1 = -^-- ,.^-J^^ 8us k--■-?-!■ -1*1 ^TN S-* Fig. 5.—16-ix. bolt type holder, Fcrxace No. 1. tions to this holder were: The lever arms tended to swing together,causing short circuits; the pressure of the levers was so great that theholders were bent; there was short circuiting through the lever boltsbetween the two clamps; the holder was of too light construction andcracked after continued use; there was not sufficient water coohng;andas the connection beween the flexible cables and the holder was made 564 MANUFACTURE OF FERROMANGANESE IN THE ELECTRIC FURNACE by Stock Photo

RM2CEKYM1–. Transactions. J 0= 00£ o^;-| 1 = -^-- ,.^-J^^ 8us k--■-?-!■ -1*1 ^TN S-* Fig. 5.—16-ix. bolt type holder, Fcrxace No. 1. tions to this holder were: The lever arms tended to swing together,causing short circuits; the pressure of the levers was so great that theholders were bent; there was short circuiting through the lever boltsbetween the two clamps; the holder was of too light construction andcracked after continued use; there was not sufficient water coohng;andas the connection beween the flexible cables and the holder was made 564 MANUFACTURE OF FERROMANGANESE IN THE ELECTRIC FURNACE by

. Journal . Fig. 1. Fig. 2. The authors have investigated the causes of the growth (permanent increase in volume) of east-irons sucn as anused in anneaUng ovens, furnace grates, etc. In a [«»?liminary experiment it was found that bars of grey ironstarted growth at about Ootf C, and reached theirmaximum after three hours at 730^ C. and that alteniateheating and cooling was necessary to the growth, seventeenhours continuous heating having no greater eflcct ilmi.three hours. For the investigation, bars were accimachined to 6 in. in length, and 1 in. diameter,measured by calii)ers to 00t>01 of Stock Photo

RM2CD89N6–. Journal . Fig. 1. Fig. 2. The authors have investigated the causes of the growth (permanent increase in volume) of east-irons sucn as anused in anneaUng ovens, furnace grates, etc. In a [«»?liminary experiment it was found that bars of grey ironstarted growth at about Ootf C, and reached theirmaximum after three hours at 730^ C. and that alteniateheating and cooling was necessary to the growth, seventeenhours continuous heating having no greater eflcct ilmi.three hours. For the investigation, bars were accimachined to 6 in. in length, and 1 in. diameter,measured by calii)ers to 00t>01 of

. Hardware merchandising March-June 1919. Oil Burner or in the open air. For the furnace themanufacturers claim it is the cheapestproposition on the market, absolutelysafe in every way, and it is much cheaper CARBON REMOVER The Work Rite carbon remover, madeby the Workrite Manufacturing Co.,5606 Euclid Avenue, Cleveland, Ohio,will, it is claimed, take the knock out ofmotors, give a considerable amount ofextra power and save from ten to fortyper cent, in gasoline consumption. Itrequires no attention, it is stated, exceptrefilling with water. One quart of wateris used, it is stated, in running 1 Stock Photo

RM2CEJK93–. Hardware merchandising March-June 1919. Oil Burner or in the open air. For the furnace themanufacturers claim it is the cheapestproposition on the market, absolutelysafe in every way, and it is much cheaper CARBON REMOVER The Work Rite carbon remover, madeby the Workrite Manufacturing Co.,5606 Euclid Avenue, Cleveland, Ohio,will, it is claimed, take the knock out ofmotors, give a considerable amount ofextra power and save from ten to fortyper cent, in gasoline consumption. Itrequires no attention, it is stated, exceptrefilling with water. One quart of wateris used, it is stated, in running 1

. Official proceedings . No. 1—Outside view of Siemens Water Pyrometer and two Iron Cylinders.. No. 3—Electric Pyrometer, showing fire rod, lesd wires and galvan-ometers for shoD and office. 42 purix)se, the drawinj;- back temperature should vary from 450to 550 decrees centigrade in an evenly heated furnace, or, l)cttcrstill, a hath of molten lead. Determination of Temperature :— For the different heat treatments, the temperature of thesteel ma - be accurately determined by the use of a ])yrometer,many of which are upon the market today. The speaker hasused the Siemens Water Pyrometer for man Stock Photo

RM2CH1E4M–. Official proceedings . No. 1—Outside view of Siemens Water Pyrometer and two Iron Cylinders.. No. 3—Electric Pyrometer, showing fire rod, lesd wires and galvan-ometers for shoD and office. 42 purix)se, the drawinj;- back temperature should vary from 450to 550 decrees centigrade in an evenly heated furnace, or, l)cttcrstill, a hath of molten lead. Determination of Temperature :— For the different heat treatments, the temperature of thesteel ma - be accurately determined by the use of a ])yrometer,many of which are upon the market today. The speaker hasused the Siemens Water Pyrometer for man

. Railway mechanical engineer . o are interested in heat treatedmetals should know. Coiiibn.^tw-i in the Fuel Bed of Hand-Fired Furnaces. By Henry Kreisingerand others. 76 pages. 6 in. by 9 in., illustrated. Bound in paper. Atechnical paper. No. 1 .V. issued by the Bureau of Mines of the Dc-p.irtment of the Interior. The oljject of the investigation of which this book is a recordwas to determine the conditions governing the processes ofcombustion in the fuel bed of a hand-fired furnace, to furnishdata for the correct design of coal-burning grates and fur-naces and their efficient operation. Th Stock Photo

RM2CNMBJX–. Railway mechanical engineer . o are interested in heat treatedmetals should know. Coiiibn.^tw-i in the Fuel Bed of Hand-Fired Furnaces. By Henry Kreisingerand others. 76 pages. 6 in. by 9 in., illustrated. Bound in paper. Atechnical paper. No. 1 .V. issued by the Bureau of Mines of the Dc-p.irtment of the Interior. The oljject of the investigation of which this book is a recordwas to determine the conditions governing the processes ofcombustion in the fuel bed of a hand-fired furnace, to furnishdata for the correct design of coal-burning grates and fur-naces and their efficient operation. Th

. Industrial Education Magazine . STEWART No. 1 OVEN FURNACE For Carbonizing, Annealing andHardening High Speed Steel Opening, 5x9; depth, 13KEloor space, 28x28Gas and air connections, IXShipping weight, 1000 lbs.For gas or oil fuel. STEWART No. 10 OVEN FURNACE For Heat Treating, Annealing and CarbonizingOpening, 12x20; depth, 48Floor space, 42x66Gas and air connections, l/iShipping Weight, 3900 lbs.For gas or oil fuel /OCATIONAL instruction must be of superior quality if the students arev to get the most out of it. Not only must the teaching be high grade,but the shop equipment as well. Hea Stock Photo

RM2CDFP6R–. Industrial Education Magazine . STEWART No. 1 OVEN FURNACE For Carbonizing, Annealing andHardening High Speed Steel Opening, 5x9; depth, 13KEloor space, 28x28Gas and air connections, IXShipping weight, 1000 lbs.For gas or oil fuel. STEWART No. 10 OVEN FURNACE For Heat Treating, Annealing and CarbonizingOpening, 12x20; depth, 48Floor space, 42x66Gas and air connections, l/iShipping Weight, 3900 lbs.For gas or oil fuel /OCATIONAL instruction must be of superior quality if the students arev to get the most out of it. Not only must the teaching be high grade,but the shop equipment as well. Hea

. Industrial Education Magazine . No. Stewart2 OVEN FURNACE For Carbonizing Annealingand Heat Treating Size of opening, 8xl4Depth of chamber, 18Floor space, 36x40Gas and air connections, 1 vShipping weight, 1650 lbs.. Stewart ROD END FORGE For Light Forging andTool Dressing Size of opening, 2xl0,spot heat of 8 Floor space. 24*x24 Gas and air connections Shipping weight, 430 lbs. giving . Because Stewart furnaces are scientifically made and practically con-structed they are universally favored by supervisors of industrial education.That is why Stewart furnaces are recognized as standard equipme Stock Photo

RM2CDG9K7–. Industrial Education Magazine . No. Stewart2 OVEN FURNACE For Carbonizing Annealingand Heat Treating Size of opening, 8xl4Depth of chamber, 18Floor space, 36x40Gas and air connections, 1 vShipping weight, 1650 lbs.. Stewart ROD END FORGE For Light Forging andTool Dressing Size of opening, 2xl0,spot heat of 8 Floor space. 24*x24 Gas and air connections Shipping weight, 430 lbs. giving . Because Stewart furnaces are scientifically made and practically con-structed they are universally favored by supervisors of industrial education.That is why Stewart furnaces are recognized as standard equipme

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