RM2AXFRR8–Engineering and Contracting . floor ahoye. f i ^BronzeBushing:l6Wt5t Pintle -Steel Casting Fig. 30. Pintle or Bottom Pivot for MiterlLock Gates. of the leaf, and there is, therefore, the grtest tendency for it to pile up behind the 1and form a head resisting the motion. Iresult of the study of the problem was, lito give the recess in the wall into whichleaf fits when open, such a shape as to pmit free exit of the water around the mi 50 Engineering and Contracting Vol. XLI. No. 1. post of the gate when near the position ofrest; and, second, to adopt a type of nia-chinerv in which the force exe
RM2AJBHJ3–Engineering and Contracting . THIS CABLE IS * , V ^^ f/a DIAMETER Wi, V of the clearing than of the grubbing. Thesearticles can be found in Engineering-Con-tracting for Oct. 17, 1907; Feb. 27, 1907;Dec. 25, 1907. In this article we discussat some length the methods of grubbing.There are four methods of grubbing: pace will be faster than when a man worksalone, and they will do more efficient workwith a lever. When grubbing is done by hand, andthe stumps can remain in the groundthroughout the winter, in cold climates, stumps are easily burnt, but green stumpsare more difficult to burn. In burn
RM2ANEN27–Engineering and Contracting . in favor of the electric truck is a verysmall one. and may vanish altogether under comparativetests. On the other hand, there is an advantage for theelectric in its quieter operation and greater cleanlinessthat is worth something in delivery service. HOW OLEAN, N. Y., PROMOTED AND FINANCEDA $300,000 FLOOD ABATEMENT PROJECT. The city of Glean, N. Y., is making an S/i mile riverimprovement, which is a striking example of what maybe accomplished by intelligently directed community co-operation. Until the spring of 1913 Cleans flood troubles wereregarded as merely a l
RM2AJARCA–Engineering and Contracting . - one of our specialties. We manufactureCARS for Concrete, Gravel, Sand, vStone, Brick.Also all kinds of ELEVATOR BUCKETS,. ELEVATORS, REVOLVING SCREENS, BOT=TOM DUMP BUCKETS, WHEELBARROWSand CONCRETE CARTS. If you need any of the above write us lorprices and Catalog EC No. 10; we can (|U(ite yiiti the lowest and give A No. 1 goods. H. B. SACKETT SCREEN & CHUTE CO. 4214-4228 State Street, CHICAGO IN WRITING to our Advertisers for CATALOGS or PRICES please mention ENGINEERING-CONTRACTING. 30 F, NGINEERING-CONTRACTING ()1. XXIX. Xo. 20. WANTS Uniis[ilay--(i Cards u
RM2AJAAD8–Engineering and Contracting . Manufacturers of ASPHALT for PAVING and ROOFING An Oiled Road in California We Make a Specialty of Heavy Oil of Asphaltum Base for Oiling Roads Prompt Shiiiments from Boston, New York, Philadelphia, New Orleans, Tampa, Fla., and Port Arthur, Texas. GENERAL OFFICES: FRICK BUILDING ANNEX, PITTSBURG, PA. IN WRITING to our Advertisers for CATALOGS or PRICES please mention ENGINEERING-CONTRACTING. 36 ENGINEERING-CONTRACTING Vol. XXIX. No. 21. NEW ERIE TURBINE PUMP /^UR Turbine Pumps involve a new principle in^-^^ pump const:uction. They give a high lift,with good effic
RM2ANGG7B–Engineering and Contracting . Jan., 1916 55.00 4.07 Feb., 1916 75.50 5.84 Mar.. 1916 34.25 2.89 April, 191C 33.50 2.41 Totals 334.75 26.45 moist.12 Inches of snow per inch of moisture. 8 14 13 14 13 12 14 TABLE IV.—SEMI-MONTHLY READINGS AT STAKE. Depthof snow.Date. in inches. Nov. 19,1915 19.00 Dec. 3, 1915 30.00 Dec. 17, 1915 34.00 Jan. 1, 1916 45.00 Jan. 14,1916 59.00 Jan. 31,1916 57.00 Feb. 15, 1916 70.00 Feb. 29, 1916 73.00 Mar. 15, 1916 76.00 Mar. 31, 1S16 SO.OO April 15, 1916 75,00 April 30, 1916 66,00 May 15,1916 48,00 S.4ND LAKE SNOW Moisturecontent,in inches, 3,9 6.0 6.710.612.813.016
RM2AWCPFJ–Engineering and Contracting . t. line, the rail-way company had to do a considerable amount of excava-tion for which it employed the electrically driven Thewautomatic shovel illustrated herewith. This shovel is of the horizontal crowding motion typeand has several other features of interest. It weighs 1.3tons, has a dipper with a capacity of % cu. yd. and aclearance height over the house of 12 ft. 2 in. It ismounted on regular car wheels on which it travels on thecar tracks and in addition is equipped with a set of aux-iliary traction wheels, 33 in. in diameter, and 15-in. tread,which permits
RM2ANF31Y–Engineering and Contracting . ? Construction Joint I Coat Cement Mortar Plaster ...^r^^6UI2;. Plaster .j^j-.jp H^ -5,-3- i^i^Ui
RM2ANDN03–Engineering and Contracting . od blockstreets. Thermal Corrections for Rood Oil By formula; V^-Vol cold OilVj, Vol hof Oil^ - Fahrenheil lemp observedThtn,V^.Vi,-Vi,(tJO,o0o3IbbI- iZgall -- 661 Cu Ft -—? -- - L^ - .. ^- -— —Sj* ? ^ ^ ^ ^ ^ ^ ^^— ^ ^ ^^ ^ . ^ — -%- -. — ^ ^ ^ -^ 2 - — ^ .dio — ?-- — ?— ^ — —- — . U2SS^ — , 1 — , 900 —? 1 , ^ ? — ..Sgo P -= —? —- ZZOO ? -600 — — Z50- SOO 350- 400- 450 F. Temperaiure Observed Diagram for Determining Thermal Corrections for Road Oil. In detemiining the quantity of oil delivered, the correction for ex
RM2AFR591–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... s. (Mai. 1:11.) m. And ye also shall bear witness, because ye have been with mefrom the beginning. (Jno. 15:27.) Beginning from the baptism of John,unto that same day that he was taken up from us, must one be ordainedto be a witness with us of his resurrection. (Acts 1:22.) n. And it came to pass, as they still went on, and talked, that, be-hold, there appeared a chariot of fire, and horses of fire, and partedthem both asunder; and Elijah went up by a whirlwind into heaven.(II Ks. 2:11.) Wherefore he saith, When he
RM2AJM75T–A report on improvements to Willard park, Battle Creek, Michigan . ier should be located a boat house and a newpier should be built at this point. The boats should be let at smallexpense so that the excellent boating facilities offered by the lake canbe taken advantage of by the working people. Here also should bebath houses, so that bathing in the lake may become general. Noone feature of more importance than public bathing could be intro-duced which would make Willard Park more popular. The presentcity water supply at Gougac Lake has the Amusement Park on oneside and Willard Park on the othe
RM2ANEN69–Engineering and Contracting . a fullhaul each way on level roads, with loading and unloading 345 tmie minimized so that the truck could be under way forsix or seven hours each day and with no extra helper re-(luired, is not often found. In deciding upon a truck one of the most importantquestions to settle is that of size. On the good roads ofthis section it is more disastrous to buy a truck toolarge for the work than to buy one that is too small. A5-ton truck costs some 25 per cent more to operate thana 3-ton machine, nor is this cost reduced very much bytaking a lighter load on the heavier tr
RM2ANJB8G–Engineering and Contracting . from which it was gatedinto wheelbarrows. The large elevator carried ninewheelbarrows and the smaller one five to the tenth floorat each load. An inclined runway was built from thetenth floor to the roof and all material used in the con-crete and the new construction work is transported fromthe tenth floor up this inclined runway. For mixing the concrete, on account of its light weightand great portability, the contractors used a motor-driven8 cu. ft. capacity low charging mixer built by the Stand-ard Scale & Supply Co., Chicago, 111. The mixer wastaken up the lar
RM2ANE539–Engineering and Contracting . eterioration. For example it isno doubt true that in an absolutely dry atmosphere steelcould be packed in salt without being materially damagedthereby, and by deduction it would seem fair to assumethat in very dense concrete, where the steel is not onlysupposed to be largely protected from contact with mois-ture but where even if some moisture reaches it, it is alsoprotected by the alkaline qualities of the cement, it mightlast indefinitely in spite of the presence of chlorine salts,but that if the porosity of the concrete is such as topermit moisture and air to p
RM2AXCW8Y–Engineering and Contracting . 4.650.8 cu. vds. 0.82 Railing, complete, 006 lin. ft .i% Railing, complete. 76.9 cu. yds 16 44 Placing rip-rap, 690 cu. yds O.i: MISCI-:l,L.NEOUS D.T.. The following quantities of lumber werilclivered and used on the job: Size. Ft. B. ^ 1-in 60,1« --In. and 3-in 98,.il 1x4-ln. to 8xl2-in 37,Sf .Miscellaneous and second-hand 20,80j Total, various sizes 217,64 driving and the wet excavation. In the sam,way Preparing Plant was kept separatelsimply to determine what this item amounteto for a job of this kind, and was added t April 29. 1914. Engineering and Contrac
RM2AWCP2B–Engineering and Contracting . nien at $2.50 per day 5.00 Incidentals 2.92 Total cost per day $50.00 Following is the total cost of the above mentionedgrading of the State Highway between Tormey andEckley: Horses. 8,753 days at $1.25 per day $10,945.00 Equipment, 1,842 days at 25 ct. per day 460,50 Driver labor, 1.S42 days at $2.50 per day 4,605 00 Steam shovel, 104 days at $50 per day 5,200 00 Foreman, 120 days at $5 per day 600 00 Timekeeper, 4 jnonths at $75 ner month 300 00 Muckers and slopers, 500 days at $2.25 per dav 1 125 00 Muckers, slopers, etc., 212 days at $2.50 per day 530.00 Purch
RM2AXFBJ5–Engineering and Contracting . conduit and raw-water conduitwill be built one over the other, forming areinforced concrete structure down the cen-ter of the pipe gallery. The house coveringthe operating floor and a part of the filterswill be of brick with a concrete roof, the in-side being lined with a light yellow vitrifiedbrick. The design is so made that the opcra- raising or lowering the cars of concrete to theappropriate level for placing. One inch yellowpine flooring has been used for form workwherever possible, with 2 by 4 in. studs spacedabout 16 ins. on centers tied with very heavywire
RM2AWCYRY–Engineering and Contracting . 0 10 eO 30 40 50 60 70 60 90 100 110 lEO 150 140 150160 170 180 190 20CLeakage in Oz per Hour. O 10 20 30 40 SO 60 70 80 90 100 110 120 130 140 150 160 170 180190200Leakage in Oz per Hour
RM2AXF5CW–Engineering and Contracting . w points, at 10 cts 1.30 Supervision, supt.. $1, and foreman, 50 cts. 1.503 plow men at $3.75 8.25 Total .$27.72 Total per lineal foot 1.S5 cts. Comparison of the two statements shows infavor of road roller rooting a saving of2.8-3 cts. per lineal foot, or $l4i>.42 per tiiileof road. These figures are for hard rooting.When a roadway has only about 2 ins. ofm,icadam on the surface it can easily berooted with twelve head of horses (Fig. 2)and a road plow or rooter at a very reason-able cost, as shown by the following state-ment: Cost It. II, - per day. 1 at 50 ct
RM2AJ93XP–Engineering and Contracting . ighted that only asmall amount of power will be required tooperate it. One of the striking features of tliebucket is the design of the side chains, bymeans of which the bucket is closed. When closed the bucket is V2V2 ft. high.It measures 7 ft. along the cutting edge ofthe bucket, and the distance between thejaws is 1 ft. when open. The power shaftis 5 ins. diameter, and the power wheel is56 ins. in diameter. The nut on the powershaft alone weighs 40 lbs. No angle irons arc used in the con-struction of the Ijucket, but the sheets ofopen-hearth steel are bent to fo
RM2AXCC3T–Engineering and Contracting . totake care of such surface waters as mayfind their way down under the felt, fromthe sides, however, 10-in. tile drains areprovided. The lines of tile are placed underthe bottom course of crushed rock, and ledto a sewer outlet in the center of the basin. crushed rock from the piles alongside thetraveler to an upper level, from which theyare chuted to the mixer as required. A Vz-cu. yd. mi.xer is operated on this part of theequipment, dumping into a bucket which islifted to the proper point on the slope by aboom working on a frame extended fromthe traveler The conc
RM2AJBBT2–Engineering and Contracting . IXrnpie-BlKXsllUmiBHtpe. Fig. 1—Sweep Stump Puller. . style of stump puller, known as thesweep stump puller, is shown in Fig. I. Itsoperation is simple yet very eflfectivc. (^neend of the sweep S rests on the ground,and the other end is mounted on a wagonwheel. The sweep is an 8x10 in. timber24 ft. long, and at the free end, B. there •is attached a single or double wdiiffletree,as described. The arrangement at the fixedend, A. is somewhat more complex and at the other end to the hook holt hj. Thehorse is then turned and driven in the op-posite direction, putting
RM2ANH64M–Engineering and Contracting . dT Hatf Erec+ionPlan V^ of Templgx+efor Bol+s U-s SecVion B-BthroughBase Ring. 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 STOREHO
RM2AXCX6K–Engineering and Contracting . omwhich the men could work. The steel chutesfrom the tower led to the center of the spanwhere they would not have to be shifted, andthe concrete was directed from there bymeans of short pieces of wooden chutes,which could be easily handled by two men. The main towers, which were approximate-ly 110 ft. high, were so designed that theconcrete would reach all points on a grade ofnot less than 1 in 4. However, the arrange-ment was not always followed as intended,and occasionally this slope was flattened.The maximum distance which the concretewas chuted was 250 ft., an
RM2AXDWHM–Engineering and Contracting . th instructions to investigate and mentation only, four settling basins beingbuilt, each 277 ft. wide by 600 ft. long, andholding about 20,000,000 gals. each. The cityat this time was using about 14,000,000 gals,of water per day, so that the basin capacitywas more than te times the average dailyconsumption. In 187.5, when the average daily consumptionwas slightly above 20,000,000 gals., an increaseof settling capacity was deemed an immediatenecessity. Two years later,, under the newcharter of the city, the water works wereplaced in charge of a water commissioner
RM2AXD4ED–Engineering and Contracting . ttelf con-vinced all parties that a practically imiformand satisfactory bearing had been found atthe level shown, which was somewhat deeperthan originally intended. Fig. 1 gives a goodidea of the shape of the foundation and showsa part of the foundation steel in place, aswell as the combined inlet and outlet pipe.No outside forms were used for the founda-tion, except the small piece shown wdiere thepipe emerges. The concrete was cast directlin contact with the bank, with the desire ofpreventing any artificial drainage surfacearound the foundation. Luihtinq for Ni
RM2AXFHFA–Engineering and Contracting . gicalactivity and the production of gas through thedecomposition of organic matter. FE.TURES OF DESIGN OF IMHOKF TANKS. The Subsidence Period. — Fundamentally,the subsidence period provided in Imhoff tankinstallations must be sufficiently prolonged atmost critical times (i. e., times of maximumflow or of the discharge of wastes which aremost difficult to treat), to compel as effectivesubsidence as is reasonably possible. Strangelyenough, the available evidence goes to show-that the weaker sewages require as long, ifnot longer, periods of subsidence than do thestr
RM2AFR458–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... manner as ye have seen him go intoheaven. (Acts 1:11.) d. Then we which are alive and remain shall be caught up to-gether with them in the clouds to meet, the Lord in the air: and soshall we ever be with the Lord. (I Thess. 4:17.) e. The Holy Ghost this signifying, that the way into the holiestof all was not yet made manifest, while as the first tabernacle wasyet standing. (Heb. 9:8.) f. For the Law was given by Moses, but grace and truth cameby Jesus Christ. (Jno. 1:17.) And ye shall know the truth, and thetruth s
RM2ANE453–Engineering and Contracting . o carry the loadsindicated on the elevator manufacturers layout, doubledto provide for impact, and the proper proportion of thedead and live load of slab, with bearing plates at ends todistribute the load over a portion of the pehthouse walls.Before encasing the beams they should be wrapped with awire mesh or netting to give a bond for the fireproofing.The top of beams if placed at a level 1 in. above bottomof the floor slab furnish a support for the lower slab bars. SPECIAL DESIGN OF LOG TRUSS BRIDGE. Log truss bridges of special design have been con-structed in
RM2AJBR5D–Engineering and Contracting . Em^-Cp/r/r Fig. 1 — Reinforced Concrete TelephonePole, Richmond, Ind. pole hole. The following figures, Table I,are given as the cost without royalty ofconcrete poles molded as described. Thesecosts are for poles erected excluding thematerial cost of steps but including labor. Fig. 2—Traveling Crusher Plant for Crushing Ballast. shown by Fig. i. invented by Mr. Wni. M.Bailey, Vice-President and General Man-ager of the company. The following ac-count of these investigations and of thestudies made by the American ConcretePole Co., Richmond, Ind., which has beenorgan
RM2AXFHYB–Engineering and Contracting . leftrough and afterward plastered with cementmortar and given a smooth finish. Thediaphragm walls were built of 1:1^4:3 rein- duit is laid under the floor and has obstruc-tions placed therein to thoroughly mix thetilter effluent with the hypochlorite of limesolution. The building contains the rein-forced concrete mixing and solution tanks,and a float controlled constant head tank foradding the solution at uniform rates. Thechloride of lime is mixed by hand and insufficient quantity to last about .30 hours. Thissolution is allowed to run into the percolat- The Engi
RM2AJ9TD9–Engineering and Contracting . Fig. 1—Sketch Showing Forms and Reinforcement. Of/oe/r/ir/o/y y^iP cwr or if/rsrH Fig. 2—Stress Deformation Diagram for Band HoopedColumns. veloping the elastic limit of the hooping,especially when large lateral deflection ofthe column and general distortion from theoriginal shape occur. The lateral deflec-tion of the column from a straight line isapparent before the maximum load carriedis reached—in many cases considerably be-fore. After the maximum load is passed,the lateral deflection rapidly increases.During the last stage of the test the col-umn usually forms
RM2AJBTPC–Engineering and Contracting . oted, are on a bevel to reduce the chanceof binding in taking apart. A cross strutor chord strut braces the two lower seg-iments apart. The rib channels are set upwith their flanges projecting outward, sothat, as will be seen from Fig. 2, the endangles of the laggings hook over theflanges and lock ribs and lagging firmlytogether. Each panel of centering, it willbe seen, is independent and self-contained,so that the centering is composed of ap-proximately 3-ft. units, the parts of whichare of such dimensions and weights thatthey can be readily bandied by men in con
RM2AJB2BX–Engineering and Contracting . being unsatisfactory. The Cost Table gives details of costsunder the four groups of Labor, Power,Repairs, Oils, etc., and diamonds. Theemployes were, normally, a runner and asetter. Extra help was required at timesfor blasting places for good set ups, forlaying pipe lines, moving plant, etc. InAugust, 1907, two shifts were employed.In June and July of that year the in- crease in labor costs is mainly on accountof the long pipe lines required. Thepower consumed is taken as being equiv-alent to that required for a y/i-m. ma-chine drill, that is to say, about 20 H. P
RM2AXCTT7–Engineering and Contracting . oncrete is 100 cu. yds. in a ten-hour day, but there has never been occasion pour some of the small parapets and side-walks. It is mounted on a truck, which isbuilt high enough^about .i or 4 ft.—to enablethe concrete to run readily into the forms.This mi.xer is driven by a gasoline engine,the materials being thrown into it by hand. . small locomotive crane is used to placethe centers for the arches and to move themfrom place to place. An electric-driven air compressor is installedunder the Eager St. Bridge, and a pipe line isrun the entire length of the work for
RM2AXDK0R–Engineering and Contracting . of the deflection and vibration ofthe plate girder, a longitudinal joint was con-structed along the face of the arch and ad-jacent to the plate girder to avoid cracking.The joint was filled with oakum and anasphalt mixture, but it will not stay in place.The motion of the steel span causes it to workupward out of the joint. The false sofiit under the plate girder isdivided into three sections. The center is a Alarch VA4. Enoineering and Contracting 363 part of the concrete floor slab. There is atransverse joint 10 ft. 8 ins. each side of thecenter. From the joint t
RM2AXG8F6–Engineering and Contracting . ?i^:if ^ c
RM2AFR1Y7–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... NAZARETH, THE HOME OF JESUS.. PANORAMA OF BETHLEHEM. Ch. 3 THE ACTS A. D. 33 9T3 unto you lot the patriarch David, that heis both dead and buried, and his sepulchre iswith us unto this day. 30 Therefore being a prophet, and knowingthat God had sworn with an oath to him, thatof the fruit of his loins, according to theflesh, he would raise up Christ to sit on histhrone; 31 He seeing this before spake of the resur-rection of Christ, sthat his soul was not leftin hell, neither his flesh did see corruption. 32 This Jesu
RM2ANF7G3–Engineering and Contracting . connect with three longitudinal steel trusses. Thescows are placed under the suspended span with their Views of Lift Bridge at Pine Bluff. Ark. center of the lift span in a horizontal direction betweentwo pairs of idler sprockets and then passes over drivesprockets. These sprockets are operated by a train ofgears connected to a motor. There are two electric mo-tors, one at each end of the span, each operating the twopairs of driving sprockets at that end of the span. Thetrain of gearing, the drive sprockets, and the idlersprockets at the corner of the span are all
RM2ANDP57–Engineering and Contracting . carpet stick over thee.xpansion joints on the 87 miles of recently constructedconcrete pavement in San Bernardino County, California,led to the invention of a special joint-filling machine,which has proved a success in use. The pavements are of 1:2:4 concrete, 5 in. thick, andare finished with a wearing surface or carpet of asphalticoil and screenings. Expansion joints of the Carey sand-wich type were provided at intervals of from 30 to 75ft., depending on the season and relative humidity at thetime of placing the concrete. Generally expansion fol-lowed the uncove
RM2AJAGYH–Engineering and Contracting . wer SC^J . 5. Machine is shipped in suchcompact shape that nothing re-mains to be done by the purchaser but insert the lamps and connect up with the feed wire. 6. Will make prints of any length with perfect contact. No breaksor joints. No other machine will come within 100% of doing the workof the Tec Duplex, and to prove our assertion we will ship our machineon 30 days approval to be placed in actual competition day by day withany other make—you purchase ours if we show results, or return at ourexpense. The ELECTRICAL ENGINEERS pocketbook. just out, 414 pages,pro
RM2AXFBPE–Engineering and Contracting . se and template shops. For themain shop the feeders will pass up the towerand overhead to cross-arms on the trusses ofthe building. A separate system, each on itsown switch, should be provided for the differ-ent departments, so that any one departmentcan be cut out without interrupting the other.There should be three sets of alternating cur-rent feeders, one for each aisle of the shop,with space on the cross-arms for the addi-tional aisles to be added later. There shouldbe two pairs of direct current feeders, onefor the north cranes and one for the southcranes. If
RM2ANHAA3–Engineering and Contracting . Plan of UBolfiU5 of Old Cable ^-?4xlZ EStC Trackway Units for Drag Line Excavators. at A and that for the roller mounted machines at B.These drawings show- all essential structural featuresand dimensions. Features to be noted are the overlapof each unit onto the next and the sling for handlingthe unit by the excavator. The contractor using thesetrackway units is the Floesch Construction Co., CapeGiradeau, Mo. PROGRESS AND METHOD OF EXCAVATING ROGERS PASS TUNNEL, CANADIAN PACIFIC RY.* The Rogers Pass Tunnel is in the Selkirk Mountainsof British Columbia. It is doub
RM2AXG07B–Engineering and Contracting . bers are deepenough for vessels of 40 ft. draft. The locksat Gatun consist of three units, those at Mira-flores consist of two units and those at PedroMiguel consist of a single unit. The two andthree units forming the locks at Mirafloresand at Gatun are set end to end. forming acontinuous flight. The lock chamber dimen-sions given are the greatest of any canal locks laterals, except that each one is 33 sq. ft. inarea at the throat and is controlled by acylindrical valve at its junction with the mainculvert. This control makes the twin lockchambers independent. Th
RM2AXDFP5–Engineering and Contracting . asily pumped free and the caisson floated,drawing about 14 ft. of water which wasslightly more than calculated upon. Someparts of it were not caulked up to the watersurface and it was rolled first to one side andthen the other and the caulking carried prac-tically to the top before any additional tim-ber was added. This was accomplished byplacing a gin pole in each corner on thesame side with their bottoms resting on theriver bottom and a set of blocks leading fromtheir tops to the top of the crib. Lines fromthese blocks were then led to a hoisting engineand a str
RM2AJM6CA–A report on improvements to Willard park, Battle Creek, Michigan . The border lines, however, should be thicklyplanted to the floweririg shrubs, using mostly native varieties. The present entrance is far from beautiful and needs a thickplanting of shrubs to hide the unsightly yard of the ice house andback yards of the summer cottages so abundant at this point. I haveas yet made no attempt to make a planting plan of this park.There are so many other features needed that I cannot recommendthe planting of shrubs until the recommendations as already mentionedare carried out. CONCLUSION. I feel sur
RM2AXBTHW–Engineering and Contracting . and tlie walls aresurmounte<l with ornamental concrete railings. The west approach of the bridge consistsof an earth fdl and a 24-ft, M-in. panel of re-taining wall construction adjoining the rein-forced concrete trestle spans. Reinforced Concrete Trestle.—The portion the principal features of the trestle spans. Fig-ure 2 (a) gives a cross-section of a typicaltrestle span, and shows the type of construc-tion, the principal dimensions and the rein-forcement; Fig. 2 (b) shows a part plan of aspan adjacent to an expansion joint, and givesthe principal dimensions a
RM2AXCCBA–Engineering and Contracting . omotive is propelled by a four-:ylinder, four-cycle ivvater cooled engine, of)U H.P. nominal capacity. The power devel-oped by the engine is transmitted to theIvheels through a system of shafting, gearingjjnd side rods. This furnishes a positiveIrive, with large journals and bearings:hroughout; and all the parts are of amplej^trength for severe service. The engine andtransmission are covered by a hood, on top ofwhich the gasoline tank is placed. This tank-has a capacity of .30 gals., an amount suf-,ncienl to propel the locomotive a distance of while standing idle.
RM2AJ8W38–Engineering and Contracting . Ask For Catalog F ERIE PUMP & ENGINE CO. ERIE, PA. Improved Combination Steel and Wood Pipe For Municipal Water-Works Systems, Mines, Railroads, Chemical and Iron Works. Strength ofSteel Will NotRust EasilyInstalled „^ Write For Circulars THE MICHIGAN PIPE COMPANY, Durable Cheaper Than Iron Pipe Keeps Water Conveyed Sweet BAY CITY, MICHIGAN IN WRITING to cur Advertisers for CATALOGS or PRICES please mention ENGINEERING-CONTRACTING. 38 ENGINEERING-CONTRACTING Vol. XXIX. Xo. 26. CLASSIFIED DIRECTORY OF ADVERTISERS—(For location of advertisements see Alph
RM2ANFCNJ–Engineering and Contracting . I/i , Number of Cartridges Required JIudcaDplng. SnakeholinK. • Blockhollng. :; 1 Vi :! 1 .4 4 H4 % Dont attempt 4 % Dont attempt 6 1 cartridge and packed firmly into the bottom of the hole.A small hole is made in this firmly pressed dynamite witha sharp stick, and in this is inserted a blasting cap andfuse. The hole is then tamped full of moist earth. Careshould be taken to have this tamping material packed veryfirmly (see Fig. 1). The gases caused by the explosionare so perfectly confined bj- this method that excellentresults may be secured with a comparatively
RM2ANDX13–Engineering and Contracting . /Sprmq Wire ::Fress aqair. Pe/ Plan Secl-ion METHOD OF HOLDING CHARTS ON PEGS r,,uf msscm ^ Back Halerioiy Ini,d(Depib S Had WAieir Jop.SolfomandSideiij Ifjienal vm^rrtn^^- TtT ^ ^ M ICHI-OlUiWl ^. Pigeon Holes for Denorid Cmrfs IfoHedup SMiortaru Ilg^^r * fordamps Pemand Charh Clamps ARRANGEMENT OF CHARTS IN FILING CABINET wooden spindles with spring holders are constructed asshown in detail. These may be readily purchased, how-ever, in a metal form of better appearance and with ablack enamel finish. The cabinet is made of wood 0.5 in.thick, the over-all dimen
RM2AJC0FW–Engineering and Contracting . nals. Railroad Construction In the PhilippineIslands. By L. F. Goodale. Ry. Age. Jan.31. 1908; Oy, pp. A general descriptive article on the char-acter, extent and methods of constructionof railway work being done in the Philip-pine Islands. Drawings are given of stajionbuildings and section houses, etc. Tlie arti-cle Is worth reading. Handbook of Cost Data By HALBERT P. GILLETTE,M. Am. Soc. C. E. Editor Engineering-Contratting* Costa Data has broken all rec-ords for the sale ot technical books.Over 10,000 copies were sold in lessthan two years; 1,600 in last three
RM2ANHM3F–Engineering and Contracting . ention to water works valuation and has become a lead-ing authority on the subject. COST OF OPERATING A FORD CAR FOR THREEYEARS. During the years 1913 to 1915 inclusive a Ford touringcar (20 h.p.) of 1912 model was used on the GrandValley project of the U. S. Reclamation Service. It trav-eled 14,200 miles at the following average operating costper mile: Cts. Gasoline 1.21 Oil 0.25 Tires 1.63 Repairs ?..% 4.82 Total 7.91 The depreciation suffered during this 3-yr. period isestimated to be about $445 or 3.1 ct. per mile in additionto the above. Interest on the inves
RM2AXFC9F–Engineering and Contracting . g with the newer trucks. One of the older trucks was driven by anIndian who lived on the desert. He learne;!to drive shortly after work on the contracthad commenced, and he drove 60 round tripsof 80 to 110 miles each without a single mis-hap or loss of a minute from the schedulewhich had been mapped out for his truck.He was paid 50 cts. per hour and he drove16 hours a day every day for 00 days. Noother driver was able to stand the heat orfatigue as well as this native Indian. Of the ten trucks hauling material out ofLancaster, the contractor planned to have twolai
RM2ANGH1J–Engineering and Contracting . heaply made accounts, in large meas-ure, for the large number of those who earn a livelihoodby wielding a right-line pen. ENGINEERINGAND CONTRACTING THE GURLEY EXPLORERS ALIDADE. The plain table alidade has evoluted within a periodremembered by not very old surveyors from a blade withtwo slotted sight standards to a telescopic alidade notmuch less a precise and complex mechanism than a theod-olite. The illustrations show one of the latest and mostfinished of these recent plane table alidades. At firstglance its only pronouncedly novel feature is the elboweye piece
RM2AXCK08–Engineering and Contracting . liout theshort stringers S (Fig. 2), which extendbetween the beams b, bs, etc., in a direc-tion parallel to the center line of the viaduct.However, these stringers were inserted at thedirection of the municipal authorities. The general details of the main girders ofthe Milwaukee Ave. viaduct are shown inFig. 4. These girders are 10 ft. 6 ins. deepand 20 ft. wide, and are reinforced withtwenty-eight 1-in. bars spaced 3 ins. hori-zontally -ind 2 ins. vertically. They also con-tain a verv considerable amount of vertical the girders. Bronze plates, A and B, the colum
RM2AJ92B7–Engineering and Contracting . mping box.It is a bottom dump wagon box which by means of a special de-vice for operating the bottom doors distributes the load equallyover the front and rear wheels and allows the gear to becoupled up as close as 65 inches. Every teamster knowswhat this means—it means light draft. The box is sandtight; it fits any wagon gear having a reach. Take off the boxand the gear is ready for hauling lumber or poles or anything elsethat does not need a box. Put on the box and there is a highclass dumping wagon at a quarter of the cost of any ordinaryfixed box dumping wagon.
RM2AJC0B3–Engineering and Contracting . ms for con-crete walls, floors and other structures. Enq-Cpntr Fig. 1. Section of Metal Lagging. Figure i is a cross-section of a sheet of thi =new lagging. It consists, as will be seen,of two plain sheets, a and c, of metal rig-idly attached to an intermediate corrugatedmetal sheet h. The thickness a to c varies 5 shows the form for a i3/2-ft. concretesewer built to receive later a 4-in. brickinvert lining. In constructing this laggingfor arch forms the outside steel sheet awayfrom the concrete is replaced by narrowstrips or bands which are bolted to theflat outs
RM2AXE63K–Engineering and Contracting . * 100 600 500 400 300 £00 Values of Load IP) in Thousand Lbs- 10 15 to £5 Length of Column in FeetValues of Eccenfricify(e) in Inches-5 10 15 20 £5 30. .cular to Web. E.a-.c. w ? ^ I 1/ I I I /I L I J1 1 1 1 . *^ ^ . ^^-t ? ? ?? I ? Note- Diagram Based on Formula, 16000 - 70 f-, and Strength about Axis When Column Carries Combined Axial and Eccentric Load use Value of (e) in . -ijram • Actual Eccentricity y p^- Fig. 1. Diagram for Determining the Required Area for Piate-and-Angle Columns Eccentrically Loaded — Diagram Also Applicable to Axiaily Loaded Columns. 266
RM2ANDH4G–Engineering and Contracting . B. Ferriss. The following costs represent the carefully kept andsegregated items of cost connected with the constructionof an underground pumping plant. In order to under-stand the records a brief description of the plant is per-haps necessary. The company owns a subdivision for which it purchaseswater in bulk. The normal pressure as supplied to thecompany is satisfactory up to elevation 140 only. A con-siderable portion of the subdivision lies above this eleva-tion, and in order to give adeciuate pressure to the pur-chasers within this high level district the pum
RM2ANEMXC–Engineering and Contracting . lean Creek and the bends are cut off,which shorten the stream over three-quarters of a milewithin the city limits. Notwithstanding the fact that the funds did not becomeavailable until Sept. 15, 1915, the plans have been made,approved by state authority, the contract let and the workabout one-third completed. This project is believed tohold the record for speed as it ordinarily requires twoyears to secure plans for this type of work and their ap-proval by state and federal authorities. This is stated tobe the largest flood abatement project ever undertaken inthe s
RM2AX5X0H–Confidential, special, net price list and catalogue . ing a completely wood jacketed can. Net Each. i-gallon 30c. 2 35 3 45 5 55 .80 JACKET CANS. Cone Top. Xet Each,i-gallon 25c. 2 30 3 40 5 50 10 75 VARNISH CUPS, ETC. Net Each.I Quart, Steeple Cover, Varnish Cups 30c. 1 without 15 2 Steeple 45 2 Flat ? 35 2 without 25 4 Steeple 7=S IA Flat 30 i^ without 20 4 PaintersBuckets,Heay Tin,Tinned Wire Bails 25 Xet Each.7 Quart Glue Pails, Heaw Tin, Copper Bot-tom 70c. 15 Glue Pails, Heavy Tin, Tin Bottom. .606 Kettles, Galvanized Iron Double §2. 25 I Tin Funnels, Pieced Rim 15 I Gallon 25 Paint Pr
RM2AJB9EB–Engineering and Contracting . used. In hauling inwagons with a l^i cu. yd. shovel theequipment can be depended upon to handleone cubic yard (place measurement), foreach load. Long,, shallow ditches can bemade for irrigating and other purposes,without the use of wagons, by dumping di-rectly onto the banks. It has been stated tliat 600 loads have been handled in a day where u wagonswere used, and the haul did not exceed900 ft. On a 2oo-ft. haul it is claimedthat with only 2 wagons 400 cu. yds. canbe moved in 10 hrs. By removing the dipper arm the attach- The Method of Sinking a Shaft in the Jopl
RM2AJCB2R–Engineering and Contracting . tonof the inner mold. A track, thus support-ed, can be pushed ahead at will so as to bealways in a convenient position, for botbthe rear and front men. (6.) Instead of arranging the plates ofthe inner mold in individual courses,square to the axis of the pipe, it is prefer-able to arrange them in a continuous spiral,in such a manner that their joints, whichare square to the spiral, will always bestaggered, i. e., strike the plates of the ad-joining spiral courses in their middle. Forpipe of ordinary diameters, this will givestiffness to the inner mold, even withou
RM2ANJBM8–Engineering and Contracting . 4 0 ( ) 0 0 ( ) 0 0 ( ) 0 0 ( ) r -? X II 0 1 0 .! II 0 5> 0 i II 0 0 II 0 1 I-PI 6 Position of Hoisting Stirrups onCargo Beam 2-L^6x3hi TPIate Connection of Cargo Beams. Cargo BeamCargo Column
RM2AFRT11–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... JERUSALEM, FROM JAFFA GATE.. JERUSALEM, LOOKING WEST FROM BETHSHEBA. Ch. 20 I KINGS B. C. 901-900 317 second time, and touched him, and said, Ariseand eat; because the journey is too great forthee. 8 And he arose, and did eat and drink, andwent in the strength of that meat forty daysand forty nights unto Horeb the mount ofGod. 9 If And he came thither unto a cave, andlodged there; and, behold, the word of theLord came to him, and he said unto him,What doest thou here, E-lijah? 10 And he said, I have been very jealo
RM2AXF6DH–Engineering and Contracting . d care of ;iline wagon. The axe man drove the team.This cost also included the running of acheck traverse which had to close 1 in -5.000,;ind a set of check levels over the benches,which were set every 1.000 ft. along the line. rRF.AKI.VG UP OLD RO.DS. Most of the construction was over oldroads, and the breaking up of the old roadsurface was necessary. These old surfaces were often quite hard, due to year-rii compactirig by traffic. When old mac-adam is 0 to 10 ins. thick and has been com-p.icted from three to five years, it is prac-ti-ally impossible to break up
RM2ANJEC1–Engineering and Contracting . and re-leases it to fall back in the clear as soon as the weight ofthe bucket is lifted. The method shown in Fig. 2 differs from the above onlyin that the chute is hinged at the end next to the mixerand is raised by a counterweight when the bucket is hoist-ing. This method has the advantage of requiring lessroom below the chute near the mixer. Its disadvantage isthe bother of the counterweight. 78 ENGINEERINGAND CONTRACTING CEMENT MEASURING DEVICE FOR VARYINGCONCRETE PROPORTIONS. Contributca liy W. U. Jones, Liis Angeles Harbor Department,San Pedro. Cal. In the co
RM2AXG924–Engineering and Contracting . cut for 4.7 miles itwas to be 200 ft. w^ide. It then widened to300 ft. for 1.88 miles to Pedro Miguel. AtPedro Miguel a twin lock with 31 ft. lift wasplanned. A set of two twin locks having a total liftof G2 ft. was planned at Sosa. By construct-ing three dams, one extending from the locksacross the Rio Grande to San Juan hill, an-other from Sosa hill to Ancon hill and a thirdfrom Ancon hill in the direction of Corozal to cated the existence of rock foundations suit-able for one lock at Pedro Miguel and fortwo locks at Miraflores. Amended plans were prepared. They
RM2ANHH0C–Engineering and Contracting . t 9, 1916Vol. XLVI. No. 6 SEWER CLEANING MACHINE USED AT HAM-MOND, IND. The illustrations show a sewer cleaning device usedsuccessfully for a number of years at Hammond, Ind., anddeveloped by John F. Kuhlman, head of the department ofpublic works of that city. The diagram, Fig. 1, depictsthe operation of cleaning a sewer. The bucket, shownby Fig. 2, is introduced at manhole A and pulled aheadby the machine at manhole B until filled; if working near- 137 The new design is known as the Talbot Compound AirLift System and is now in use in the Gloucester City,N. J., wa
RM2AJA2WD–Engineering and Contracting . WHATS THE USE putting up with old style wooden cars, scrapers, etc., thatare slow, unwieldy and expensive to operate when YOU CAN RENT a Koppel Portable Railway and Equipment either by themonth or contract on reasonable terms ? You can do twice the work in half the time andat half the cost if you use Koppel equipment. Writ?; for Rextint, I^ist !?>. ARTHUR OPEb New York139 Morris bldg.Pittsburgh1010 Machcsney BWg. Chicago341D Monadnock Bldg. San FRANPisrn1511a Chronicle Bldg. COMPANY Boston53 Oliver St.Baltimorb44!l Equitable Bldg. ContractorsRotary Dump Concret
RM2ANEPR5–Engineering and Contracting . In 8,818 7 -in 12.964 8 -In 18,102 n -in 24,300 10 -in 31,623 ?;-ln. L. P 31 Directions for Using Table.—To find the size of piperequired to supply a number of smaller pipes, it is onlynecessary to add the proportionate capacities of all thepipes to be supplied. The pipe required will be the sizehaving the same, or a greater capacity. For example: To find the size pipe required to supply five %-in., fourVa-in., two %-in., four 1-in. and one Ii-in. pipes, add: 5 X 18 = 90 4 X 28 = 112 2 X 57 = 114 4 X 100 = 400 1 X 232 = 232 94S The size required is 22-in., which e
RM2AXBAAW–Engineering and Contracting . Fig. 2. Dam Under Construction, CuyahogaRiver Hydro-Electric Development. t-ig. J. D.-.ni iNenny Completed, CuyahogaRiver HyrdoElectric Development. The receiver is also made of /2-in. metal.Soft basic open-hearth steel was used for allthe above work. All circular .scams aresingle riveted, while all longitudinal scamsare double riveted, the sizes of the rivetsvarying from %-in. at the upper end to 1-in.at the lower end. The hydraulic equipment consists of three750-IlP.Trump horizontal turbines which aredirect connected to the generators by meansof a flexible coupl
RM2AXDFYJ–Engineering and Contracting . ilwaySkept on the upstream side of the platform andfound the bolt by the simple method of get-ting hold of the ^-. cable leading downthrough the pipe to the ring and following itto the ring. The end of this cable hadpreviouslv been made fast on the barge and April 1, 1914. Engineering and Contracting 379 was left attached to the ring bolt for use asa buoy line. WTien the diver had located thering bolt the end of the anchor cable was sentdown to him by a hand line. This cable wasattached to the anchor bolt by means of a Ili-in. shackle for the upstream anchors and
RM2AJ96DX–Engineering and Contracting . Great weight in a steam shovelmakes it cumbersome and diffi-cult to hold up on temporaryrails and soft ground. TheAtlantic Steam Shovel is ofmoderate weight, simple in de-sign, and has few and strongparts that will not break or getout of order. ATLANTIC EQUIPMENT COMPANY Railway ExchangeChicago 30 Church StreetNew York HIGH GRADECHAIN. use on Dredges, Cranesd Steam Shovels madeby hand by skilledworkmen fromspecial selectedmaterial andtested. If yotiwill spe-cify o u ity chain ayour troubles willcease. You can getwhat you want when3ou want it by writing tous and as
RM2AJ9FG7–Engineering and Contracting . rolithic Rolling Tamper. Oiling, har-rowing and tamping are repeated until apaemcnt is produced that is almost asdense as an asphalt pavement, but freefrom dust and noiseless. It is ideal forresidence streets and country roads, buthas also been extensively used on busi-ness streets. Our large catalog illustratesnumerous stieets and roads and gives de-tails of construction. Petrolithic Pavement Company 764 Pacific Electric Bldg., Los Angeles, Cal. KELLY-SPRINGFIELD ROAD ROLLER CO. 1 ^M^^^^W^-^^^sfS^^ M L ?l^j^J Sit«am Road Rollrrt, All Ttpt-s, All BIzm,UTer£lght«e
RM2AXD1WK–Engineering and Contracting . ottine Curve Y.J - 0. d - 8.63 - 6.87 = 1.76.s - 0.05. d - 8.63 - 6.87 (1 - 0.00125 X 2.75) -8.63 - 6.85 - 1.78.- 0.10. d - 8.63 - 6.87 (1 - 0.005 X 2.75) -8.63 - 6.77 - 1.86.J-0.15, d - 8.63 - 6.87 (1 - 0.01125 X 2.75) -8.63 - 6.66 - 1.97. For plotting straight line .Y.5 - 0.10. d - 3 - 0.1 X 10 = 2.0.J - 0.20, d - 3 - 0.2 X 10 - 1.0. Case l-B. Compulations for Curve Z. Fig. 3.Example:—Jic 5. tt ? 3. » - 3. L - 1.5. = 0. C- —^— ?*? ^ X 3-9.67. ! X 3 (-1^-) . .30.0. 5 7^ - y + 1.5 X3 + 3 - 10. H V«!67 - 30 -V63.5T - 7.97. G - Ts- - 2.25. For plotting Curve Y.J
RM2AJ99MC–Engineering and Contracting . The Latest SuccessfulTwo-Line AUTOMATIC-DUM PI N G-SELF-LOADINGPOWER-SCRAPER Manufactured by PAGE & SHNABLE, General Contractors1002 Security Building CHICAGO STEAM SHOVELS. StandardGaugeandOthers JOHN SOUTHER & GO. Brown Building BOSTON, MASS.Send for Catalogue We handled with one of your 2 3ard shovels, some 800,000 yards of stiff clay iii twoyears, a part of the time working night as well as daytime. We had no serious breakdownsand the shovel after handling this amount was as efficient as at the start. The machine takesvery little coal, not more than half a ton
RM2AXF574–Engineering and Contracting . Fig. 3 Rough Grade Before Stakinn for Side Formg. Cali-fornia State Highway. Fig. c .ecking Subgrade Before Material i« Distributedfor Mixer, California State Highway. teadv that it is very hard for the four plow This outfit would root about 1.0.K) ft per it is generally the practice to run a i-horse men to guide the rooter or plow. The follow- day. and the cost per lineal foot was there- plow back and forth through the material 182 Engineering and Contracting Vol. XLI. No. 6. until all the larger lumps are broken, andit is in shape for the road graders and into a
RM2AXE10X–Engineering and Contracting . .-?Cor cref^e placed,„. ofterposf-isse^ Fig, 2. Detail of 16 ft. Section of Reinforced Concrete Fence at Woodville, Pa. expansion and contraction and for any slightsettlement that might occur. Each panel con-sists of 19 palings spaced o^4 ins, in the clear.The detail of a Ifi-ft. panel is shown in Fig, 2,In the construction of the fence the follow-ing method of procedure was found to be themost satisfactory. The work was carefullystaked out and holes were dug for the posts.ind the intermediate supports. The posts wereset to line and grade, their tops being 10 ft.a
RM2AWD7BW–Engineering and Contracting . its depth at the wall 15 ft., and at the center25 ft. The bottom is reinforced throughout to resisttemperature stresses, and the wall is designed as a canti-lever gravity section, with only enough steel around thecircumference to resist temperature stresses. This reser-»foir is believed to be the largest reinforced concrete reser- J u 1 V 12, 19 16Vol. XLVI. No. 2 voir ever built without expansion joints. 1^ was built in100 days, and was practically watertight when finished. Figure 5 is a section through the wall of a 7,500,000-gal.reservoir built almost wholly in
RM2ANDBT5–Engineering and Contracting . od cf Back Filling with Board Fastened to Truck. The shoe was for the purpose of keeping the fillingboard from digging into the ground underneath the truck. The trench was tamped by driving the truck over it, avery satisfactory job resulting. D. J. Young is Superintendent Gas Department of theSan Diego Consolidated Gas & Electric Co. HANDLING HEA^ PIECES IN ERECTINGSTEAM SHOVEL. A useful labor and time saving device for erecting astandard railroad type shovel is described by Mr. GeorgeV. Williams in a recent issue of the E.xcavating Engineer.The arrangement cons
RM2ANJ7AW–Engineering and Contracting . point of discharge the necessary sections wereadded or taken off as the case might be. The positionof the guides in the plan is shown vertical, but it wasfound expedient to incline these so that they restedagainst the building at floor level to which material wasbeing hoisted. This made dumping a little more positive, as it increasedthe angle of platform floor with a horizontal line andconsequently the angle of the receiving timbers, whichskidded the material out on to the floor of the building.The elevation of the lower floor was such, with referenceto the street
RM2AXCAD0–Engineering and Contracting . which if^shown dotted in the upper stories of the towjers, is yet to be placed. Temporary ties andrails were laid as the work advanced. Thelmaterial to be erected was brought out as far!as possible on flat cars on the track opposite]the derrick car, and was then carried to posi- |tion, suspended from the boom. The bracing!and laterals were handled with runner lines,!while the girders were handled with the load Iline and were grasped with girder hooks, ajdetail of which is shown in Fig. 8. The^hooks were found to be very effective. Thmaximum stresses in the derrick
RM2AJACR7–Engineering and Contracting . 20th Century Grader are tuld in our brand new booklet printed in orange and black, entitled.20th Century Highways. This book tells how to make good roads outof bad ones, enumerates all the uses to which the 20th Century Gradercan be put in constructing roads, railroad grades, irrigation ditches, fordigging foundations for pavements, for leveling lawns, fields, etc., etc.Its valuable. Send now for it. Its free. Address The Baker Manufacturing Co. Dept. F, 706 Fisher Bldg. CHICAGO UNCLIMBABbE FENCES. For Factories, Railroads, Reservoirs and Industrial Properties of
RM2AXC0K8–Engineering and Contracting . mains, etc.It is good for a width of 15 ins. to 44 ins., anda depth of t! or 8 ft. The best record withthis type of scoop was made by S. B. Markley.contractor of Woodlawn, Pa., on work atConway, Pa. He dug in eight hours 4u(l ft. ofi) ins. :md is ofthe inverted porcupine style. The engine is8x8 ins. The weight of the complete machine is about 16.000 lbs. The machine is made bythe Keystone Driller Co., Beaver Falls, Pa.. Fig. 3. Ditcher Tucket Equipment for Key-stone Excavator. Sl®(2l(llS CsUffiCll ^ftlPOCSft Proportioning Gravel Concrete: Quan-tity and Cost Curves
RM2AXGDCJ–Engineering and Contracting . 10 20 30 40 50 60 70 80Rate of Hon- Cu Ft PerMin Fig. 10. Proportional Flow and Accuracy of Registration on Main Line and By-Pass at Various Rates of Flow Through a 4x12-in. Detector Meter. through the main line. The function of theball weight is to reseat the check valve, forit would tend to float, as no excess pressureis created above it when unseated. Figure fanuary 7, 1914. Engineering and Contracting 10 serves to illustrate the proportional amountsind accuracy of registration on both the mainine and by-pass at various rates of flow;hrough a 4x2-in. detector m
RM2AXFF1B–Engineering and Contracting . ; s = Stress in steel, in pounds per squareinch, allowed under the assumption that theconcrett; carries no tension; c = Stress in concrete, in pounds per squareinch, allowed. a = Area, in square inches, of steel in eachlayer. The area of the bars required per foot ofheight of wall is /? A= The vertical distance between the layers ofbars is 12 a D = AThe thickness of the concrete wall at anypoint is pr — 9A cT = . The reinforcing bars were held in positionby angle-iron frames, the sides of the anglesbeing punched accurately with small holes forthe insertion of the
RM2AFRA9T–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... VIEW OP TIBERIAS PROM OLD ROMAN CASTLE.. THE TOMB OF CHRIST. Ch. 16 ST. MARK A. D. 33 847 said among themselves with the scribes, Hesaved others; himself he cannot save. 32 Let Christ the King of Isra-el descendnow from the cross, that we may see and be-lieve. And they that were crucified with himreviled him. 33 And when the sixth hour was come, therewas darkness over the whole land until theninth hour. 34 And at the ninth hour Je§us cried with aloud voice, saying, E-lul, E-loi, lama sa-bach-thani? which is, being
RM2AJB3J9–Engineering and Contracting . ore than a two-uhccl push cart, and a stationary mixingframe provided with hand-driven or power-driven mechanism for revolving the bowlof the cart while the wheels remain sta-tionary. This cart mixer, as it is called,is especially designed for laying concretebase for pavements, for concrete curbs, for•.nanholes, for walls of buildings, and, indeed,for any concrete work where the amountof concrete to be placed in a given area isnot large. The mixer frame is so lightthat half a dozen men can pick it up andcarry it, or it may be mounted on smallwheels and pushed alon
RM2AFR7RE–. The ideal Holy Bible self-pronouncing, self-interpreting, self-explanatory... the kingdom which he hath promised to them thatlove him? (Js. 2:5.) 1. And I say unto you, That many shall come from the east andwest, and shall sit down with Abraham, and Isaac, and Jacob, in thekingdom of heaven. (Mat. 8:11.) m. They spend their days in wealth, and in a moment go down tothe grave. (Job 21:13.) But woe unto you that are rich! for ye havereceived your consolation. (Lu. 6:24.) n. Who shall be punished with everlasting destruction from thepresence of the Lord, and from the glory of his power. (II The
RM2ANGNG0–Engineering and Contracting . Part Transverse Section Part Longitudinal Section -orT -,an Mg5 Eac Figs. 3 to 5—Types of Overflow Bridges. ENGINEERINGAND COXTRACTING. Figs. 1 to 8—Views of Overflow Bridge Construction In McLennan County, Texas. age thickness of 5V4 in. In addition to this there wasthe dead load due to the beam encasements. Its location was such that the central pier fell in themiddle of the channel. The floor elevation was some 10ft. below high water level as given by the flood of 1913.In adopting this elevation for the bridge floor due re-gard was given to the drift line of th
RM2ANA18X–University of Chicago magazine . embers be formedwherever such numbers are sufficiently numerous to form a group, and that, inany case, the Doctors identify themselveswith the local alumni chapter. Especi-ally important is the suggestion thatDoctors attend the scientific meetingsof their departments and embrace everyopportunity to extend their personalacquaintance among men and womenengaged in the same line of work. One criticism has been made, and per-haps justly so, namely, that the circularletter recently referred to Chicago men and said nothing of Chicago women.This was entirely an unconsc
RM2AJBN4W–Engineering and Contracting . I 1 1 1 — — — ?^ ^ ^ r^ ?^ ^ , ^ =« - , , , , -^ — — — ?— =™- — ?— ?— — 1— — — — — 25 20 ^ — •—. ^ —n —1 —1 — — — — -^ ?^ = = =J — Id ^^ „ - :^ s^ ^ — — — ^ ^ ^ ^^ :^ ^ =— — — — —? — — -^ — — — — — t> 1 10 1 5 2C 2i 30 Fig. 2. were secured, wliich it is believed will be ofvalue to architects and engineers. Thechief result of the work has been the de-vising of a method to save time and labor with parallel chords; these arc, however,less valuable for roof trusses where far rusTANCE Between Trusses O. C.Fig. 5. made with vertical steel fish plates an
RM2AND2PP–Engineering and Contracting . Theamount of coal hauled per trip ranged from 3,600 to4,300 lb. An average gas consumption of 21 gal. per round tripwas registered, and the round trip consumption of oilaveraged two quarts. Two trips were made every 24 hours, the average timecoming down being V.2 hours, and returning 4i/j hours,which, wath allowance of 1 hour for loading and unload-ing, gave 3 hours for oiling, taking on gas, and inspect- his own department. In order to develop executive abil-ity among the men he introduced a system of shop ac-counting designed according to the principles of the E
RM2AXBBJT–Engineering and Contracting . o ^.u..j L Cri: 36 60 i56 c 3 ?D . ? X ^ •-- ? . 5 i / 7 / ? /. ; /( 5 li £ J £ c £4 £6 £6 30 3£ 34 36 Soon Lengths in Hundred FeetFig. 4. Uniform Live Loads Equivalent to Class U Briages Plus Impact. or even any individual part of it, except, per-haps, the central span; and (c) it is improb-able that any load of cars—unless they areore or coal cars—will ever be uniformly fullor loaded to the assumed limit. Figure 7 shows the curves of weights forcantilever bridges of the same type and load-ing as those used in preparing the curves inFig. 6, except that the imp
RM2AJCCCN–Engineering and Contracting . en is of some inter- 2. LoQCjfmif lower drift. By turning up on the jacksthe weight of the upper drift was carriedentirely upon the two longitudinal timbers.The end of the mud sills were then sawedoff and the next lower section of the sidestruts inserted and carried upon a newmud sill. The jacks were then removedand the 10x10 in. cross timber was drivendown to cover the joint, as shown by Fig.3. The finished appearance of the timbersets of the two upper drifts is shown inFig. 4. The second method, and one whichwas adopted for most of the work, wassuperior to the o
RM2ANE64T–Engineering and Contracting . Instead of having a wedgeshaped bar or girder support, the new joint is designedto throw the weight or wheel load directly from the headof the rail to the juncture of the web and the flange,which allows the angle bar to grip the rail in a vice-likefashion. The center part of the bar has a flare, which ex-tends over the top and the outer edge of the flange whereit locks the angle bar against rotation except as weartakes place on the bar at the bottom of the flange and onthe top of the bar at the under side of the head of the rail.By tightening the bolts the lost mo
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