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RMMAJXX6–Photograph of the Gunboat Osage just off shore with hand-drawn highlights. Text supplied with image reads: 'U.S. Iron hull and iron clad Gunboat Osage. Launched, January 13th 1863. Length =180 feet. Width = 45 feet. Draught = 3 feet 9 inches. 2 non condensing engines. 20 inch cylinders - 6 feet stroke. Wheel: 19 feet diameter. Designed and constructed by Jas. B. Eads. St. Louis, Mo.' Title: 'U.S. Iron hull and iron clad Gunboat Osage.' . circa 1863.
RFKXDHTJ–Front View of Three lines of Modern Locomotives. Atlantic Type passenger Engine, Cylinders, 20x28 inches. Heating surface, 2,65…
RMED4TJ2–A warning about hear related deaths at the Furnace Creek Visitor Centre in Death Valley. Death Valley is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does not receive any rain at all.
RM2CDGDEF–. Electrical news and engineering . Diameter of Cylinder, 13 inches. Stroke, ^2 inches. Piston Rod, 2+ inches. Pressnre bySteam Gauge or Boiler, 125 lbs. Vacuum by Gauge, 25.3. Revolutions, 50 per minute.M. E. P., SI.5. I. H. P., 59.4. Low IRKSsiRK Card.. Cards IVom Low Pressure Cylinder. gases, 220°. As mentionedabove the duty was calculatedfrom the amount of coal used,with no deduction for ashes,and from feed water at 180.The result was a duty of 98,-500,000. This duty is statedby the gentlemen who con-ducted these tests to be con-siderably higher than thatshown by any other pumpingengines o
RM2ABXNAD–inches in diameter by 12 inches stroke. 1 A CURIOUS EXAMPLE OF PETRIFACTION. ' PHOTOGRAPHING THE ELECTRIC ARC. BY PROF. A. C. SCOTT. the correctness of this representation PETRIFIED PERU VIAN INDIAN WOMAN EXHIBITED AT THE PAN-AMERICAN EXPOSITION. 1 Conventional picture of the arc. 2. Continuous current open arc after burning seventy minutes. 8. The same after burning two hours. 4. Alternating current arc after burning two hours. 6. and 8. Inclosed arcs. 'Z. Term reversed negative. PHOT °GRAPHING THE ELECTRIC ABC UNDER VARIOUS CONDITIONS., scientific american, 1901-10-19
RMEADNDB–A warning about hear related deaths at the Furnace Creek Visitor Centre in Death Valley. Death Valley is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does not receive any rain at all.
RM2AFWC1K–. Bulletin - United States National Museum. Figure 58.—Lion as nowexhibited at University ofMaine.. Today the locomotive, jacked up so that its four wheels canbe made to operate, is a valued relic at the University ofMaine (figure 58). It has been stated that the Lion cost $2,700, exclusive ofthe tender. The bore and stroke of its cylinders are 9Va inchesand 17 inches, respectively, and the diameter of the fourwheels is approximately 42^2 inches. The gauge is standard,56V2 inches. The locomotive alone weighs 9 tons. The final survivor of this group of early locomotives is theMemnon (figure 59)
RM2ABXTF0–down streams and rivers to the sawmills. When a break the jam. The logging railroad has to a con siderable extent displaced this old-fashioned method of bringing the logs to the sawmill and even in locali water transportation is still adhered to exclusively the lumber companies have constructed great flume AN EARLY ROAD LOCOMOTIVE. EUEDGONII ENGINE. inch diameter ; stroke 'about 2 inches. you that he has made a small engine of %-inch dia next month that Murdoch 'had made his steam car riage run a mile or two in River's great room making it carry the fire shovel poker and tongs. William uses no
RM2ABTBK3–ten to their doubta and griefs and a gentle shoulder for their little heads to nestle against! Respect their rights ; never think you can say bitter things in their presence has been most employed.' THE STEAMER 'AUSTIN.' thickness ; ceiling of white pine 2 inches deep on the top of keelsons. The hight of smoke pipe above grates is 51 feet ; diameter of same 65 inches ; area of heating surface pounds ; cat off at half stroke and the maximum re volutions at the above pressure are 17. WEEELY SUMMARY OF INVENTIONS. FILES. This invention is more especially applicable to files for Sling soft metal
RM2ANDHJA–Tests of large bridge columns. . ismounted upon a vertically acting piston of 50 inches diameter and2 foot stroke. There is attached to the bottom of this piston a14 inch by 2 foot 5 inch guiding plunger, which fits into the largebase casting of the testing machine and serves for proper centeringof the parts. The lower or straining platen is subject to the oil pressure inthe cylinder, which at the capacity of the machine is approxi-mately 5000 pounds per square inch. The oil pressure com-municates through auxiliary piping with a smaller piston of5A inches diameter. This piston has a knife-edge
RM2AKP03N–A practical treatise on mechanical dentistry . amber, ready to be used in large or small quantities at the willof the operator, by a rapid or slow movement of the treadle. Apressure of from 2 to 12 pounds is produced at the will of theoperator, by accelerating the motion of the foot, and can be.con-tinued with but little exertion. The machine weighs 12 pounds,and measures 22 inches in height. The pump-cylinder is 2J/2inches in diameter, with three-inch stroke. The internal mechan-ism is clearly illustrated in Fig. 11, and its simplicity will be atonce appreciated. It requires an occasional dro
RM2AM2CG5–Van Nostrand's engineering magazine . LENOIR tNGINE. Diagram at 50 revolutions, cylinder 8% inchesdiameter, 16)4 inches stroke. Fig.8.. LENOIK ENGINE.Diagram at 45 revolutions, 1 inch=32 lbs. perature attained al about 1,356° Centi-grade, and he says, The dotted linerepresents the theoretical curve of ex-pansion, taking into account the loss ofheat and consequent fall of pressure, dueto the work done (which is the propertheoretical curve for an indicated dia-gram). The temperature at the end ofthe stroke, indicated by this line, wouldbe 2,156° Fahrenheit (1,180° Centigrade).The final temperatu
RM2AJ7YK5–New Bedford, Massachusetts : its history, industries, institutions, and attractions . - wheel, 16feet in diameter. The pumps are placed one each side of the beamcenter. Diameter of the pumps, 28 inches ; stroke, 4 feet 8 inches.. SEEING THE SIGHTS. • lOI The beam is supported by a cast iron hollow column which serves asan air chamber. The pumps of this engine were originally singleacting, but they were remodelled as above in 1886. This enginenow has a capacitv of six million gallons in twenty-four hours.Engine No. 2 was erected in 1874 ^^ ^^^ built by Henry R.Worthington of New York. It is of
RM2AJ3AEW–A history of the growth of the steam-engine . es stroke of piston. The connecting-rods were directly STEAM-LOCOMOTION ON BAILEOADS. 213 attached to a cranked axle, and turned four coupled wheels4^ feet in diameter. These wheels had cast-iron hubs andwrought-iron spokes and tires. The tubes were of copper,2^ inches in diameter and 6 feet long. The engine weighed3^ tons, and hauled 5 cars at the rate of 30 miles an hour. Another engine, the South Carolina (Fig. 62), -vi^asdesigned by Horatio Allen for the South Carolina Railroad,and completed late in the year 1831. This was the firsteight-wheele
RM2AWYF78–Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . ? ?? ? ? ! ?! ?11 ??! ? ??? Fig. 69. Four Harness Twill Cam. graded, the smallest having 1|- inches stroke, the largest 2| inchesstroke. It requires a considerable amount of skill in the setting ofthese motions, but when they are set they give fair results. Yetthe time spent in setting is not balanced by these results. Whencompared with the motion in Fig. 68, it is seen that one is placedinside of the loom and out of the way, w
RM2AWJW07–Transactions . Fig. 4.—Plugger for Drilling Holes. holes to a depth of 15 ft. It is essentially an all-steel drill. The cylinder,for instance, is drop forged, made of special steel, treated and hardenedin the bore. Its most interesting feature is its automatic rotation, whichis shown in the skeleton section, Fig. 7. Fig. 8 is a view of Jackhamersengaged in stoping in No. 15 shaft, seventh level, Osceola Amygdaloidallode of the Calumet and Hecla mine, Calumet, Mich. 1^0 ROCK-DRILLING ECONOMICS. Specifications of Jackhamer. Length, inches 18 Cylinder diameter, inches 2 34 Stroke, inches 2 Steel
RM2AWJW9B–Transactions . :—vi. Fig. 4.—Plugger for Drilling Holes. holes to a depth of 15 ft. It is essentially an all-steel drill. The cylinder,for instance, is drop forged, made of special steel, treated and hardenedin the bore. Its most interesting feature is its automatic rotation, whichis shown in the skeleton section, Fig. 7. Fig. 8 is a view of Jackhamersengaged in stoping in No. 15 shaft, seventh level, Osceola Amygdaloidallode of the Calumet and Hecla mine, Calumet, Mich. 1^0 ROCK-DRILLING ECONOMICS. Specifications of Jackhamer. Length, inches 18 Cylinder diameter, inches 2 34 Stroke, inches 2
RM2AWH204–The Practical mechanic's journal . 19-2 20-5 21-7 23-0Average Pressure, 2629 Low-Pressure Cylinder, 33 inches diameter, 4 feet stroke.Scale of lOths.. 12-2 11.7 1C-6 9-2 66 Average, SSS. 7-8 7-3 These figures are sufficiently explanatory of the action of the engine,and they teach us that the labouring force of the two cylinders is equalto 130 horse power, including friction, or, deducting this, to 113 horsepower. We have not yet tested the consumption of fuel, for the reasonthat the boiler arrangements are not yet completed—whatever it maynow be, its amount will bo considerably lessened when t
RM2AN3XWK–A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . equal to, we append tlie result of an experiment on a No. 1 cone, (for insidebuffers,) 3 inches iu length, 3J inches diameter at ring, 5 inches diameter of ring. 1st Experhnoit, without the confining ring, weight of cone 1:|- lbs. Inches. Giving a stroke of Without any pressure the cone measured - - 3 - -With pressure—280 lbs. - - 24- - - -| inch. « —148 lbs. . 2 - - 1 —672 lbs. . u . u 2c? Experiment.With the confining ring 6, on the same double cone; the follo
RM2AJ3CRM–A history of the growth of the steam-engine . cal, 8 inches in diame-ter and of 2 feet stroke of piston, set in the boiler, anddriving a set of wheels which geared with each other andwith other cogged wheels on the two driving-axles. A feed-water heater surrounded the base of the chimney. Thisengine drew 30 tons on a rising gradient of 10 or 12 feet tothe mile at the rate of 4 miles an hour. This engine provedin many respects defective, and the cost of its operationwas found to be about as great as that of employing horse-power. Stephenson determined to build another engine on asomewhat differ
RM2AWJT80–Transactions . Fig. -Plugger Drills in Operation* at Grand Central Terminal, New York. was invented and its application to general mining work has been veryrapid. Thousands of them are in use. Fig. 9 is a sectional view and Fig.10 shows a stoper in operation. In this particular case a jet discharges aspray of water for allaying the dust. ROCK-DRILLING ECONOMICS. 161 Specifications of Stoper Drill. Piston diameter, inches 2 Piston stroke, inches 4 Length of feed, inches 22 Length of machine over all (closed), inches 52J^ Length of machine over all (extended), inches 743^ Weight, pounds 73 Size
RM2AN5TNE–The Artizan . dle-Boats,viz.: One for river steamers and vessels intended for smooth waters. Here c = 625. Another coefficient is used for steamers intended to encounter gales andheavy seas. Here c = 575. There are likewise two coefficients for Crankshafts used in Screw-Boatsviz.:— One for larger engines, c = 525.and another for smaller ones, c = 515. Example.—The diameter of cylinder 92in., stroke 4ft., pressure onpiston 201bs. steam + 131bs. vacuum ; what is the diameter of crankshaft ? 92 inches diameter = 66476 square inches in area.6647-6 x 33 x 2 x 2* = 877,480 (*the last 2 = No. of engi
RM2AG6FNC–. Handbook of construction plant, its cost and efficiency. 7-in. stroke. The Ingersoll-Sergeant drillA 32 has a cylinder 2% ins. in diameter and a 5-in. stroke. 254 HANDBOOK OF CONSTRUCTION PLANT Mr. Bond (quoted above) observes that a well-made heavybar or column should outlast four drills, and arms are generallystrong enough to finish three drills. He considers that repairsand depreciation on a stoping drill are about 50c per shift. The cost of repairs to two Ingersoll drills 3VS inches in sizeat the Melones mine was $91.00 for over 2,600 feet of tunnel. The following drill repair costs are
RM2AFWG35–. Bulletin - United States National Museum. wheelbase of112% inches and a weight of 29,200 pounds, has a tractiveforce of 2,323 pounds. Its cylinders have a 9-inch bore andan 18-inch stroke, and it operates on a steam pressure of 90pounds per square inch. The replica was built in 1927 for the Fair of the IronHorse and later appeared at the Chicago Worlds Fair in1933 and 1934, the New York Worlds Fair in 1939 and1940, and the Chicago Railroad Fair in 1948 and 1949. Ithas also been taken several times to the west coast, where ithas been used in the filming of motion pictures. In the fall of1955
RM2AM2BC6–Van Nostrand's engineering magazine . mply expand in volumewithout rising in pressure above theatmosphere, and even without loss ofheat to the sides of the cylinder thewhole heat would be uselessly discharged. Fig.10. 1 47 45 45 40 31 23 12 11 2fi—n BRAYTON PETROLEUM ENGINE (MOTOR CYLINDER).Area of piston, 50.26 inches. Stroke, 12 inches. Mean pressure, 30.2 lbs. lowed to rise, but only increase of volumetakes place; at about the middle of thestroke the supply of flame is cut off andthe piston moves on, and the heated gasesexpand doing work. Fig. 11 is the compression pump dia-gram, which mus
RM2AG6DR7–. Contributions to the Centennial Exhibition. LENGTH ON DECK, 312 FEET. BEAM, 50 FEET. DEPTH, 21 FEET 6 INCHES. STEAM-CYLINDERS, 100 INCHES DIAMETER, 4 FEET STROKE. PROPELLER, 31 FEET 6 INCHES DIAMETER. ILATt: J J. SEt: LuAP. XXXV.. S O S^ H O w ^ U M Q 1-3 ? >? H O H > ::; ^ 2! !2l O td •/. a ffi t-( tr; 1^ H t> H3 tz! M ^ K| o w w ili;i.i,., .lii Plate 53. Sjce Cuai. XXXV.
RM2AWW7RJ–The Ohio farmer . orking stroke is 6% inches, and the other M inch of thestroke is sufficient to open the valves. The working stroke of the McVicker is one Inch longer thanthat of other engines. As engines are bought for the power they develop, you readily t*ee thut ut anequal price you are getting nearly one-sixth more actual applied power when you buy a <- 6 in —» SB No. 2—Piston Stroke of Oth.rs PowerWasted McVICKER A McVickor 6 horse-power engine pives you on.horse-power more thim any otni r engine of thesu.no rating. The Mc Vicker develops sufficient Eower to run Threshing Machines, Kl
RM2AJ35JM–A history of the growth of the steam-engine . Fig. 83.—Section of Steam-Boilcr, 1S04. known as sectional boilers, and contained 100 tubes 2 inchesin diameter and 18 inches long, each fastened at one end toa central water-leg and steam-drum, and plugged at theother end. The flames from the furnace passed around andamong the tubes, the water being inside them. The engine(Fig. 84) was a direct-acting high-pressure condensing en-gine, having a 10-inch cylinder, 2 feet stroke of piston, anddrove a screw having four blades, and of a form which, evento-day, appears quite good. The whole is a most rem
RM2AXE7F8–Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . air cylinder seven inches in diameter, stroke, nineinches. No. 2.— Steam cylinders seven inches in diameter,high-pressure air cylinder, seven inches in diameter,low-pressure air cylinder ten inches in diameter, strokenine inches. No. 6.—Steam cylinders seven inches in diameter,high-pressure air cylinder seven inches in diameter,low-pressure air cylinder eleven inches in diameter,stroke ten inches. No. 5.—Steam cylinders eight inches in
RM2AJCG2D–Transactions . e topof each cylinder, are easily actuated together by a hand-lever.The drum is partly conical, having three dead coils and six work-ing coils on a cone rising from 12 feet 8 inches to 13 feet 2 inchesin diameter; four coils range from 13 feet 2 inches to 19 feet indiameter; and the remainder run on the parallel drum, 19 feetin diameter. Each engine-house is fitted with an overheadtravelling crane. 160 THE SINKING OF BENTLEY COLLIERY. The sinkiug-eiigiiie at No. 2 pit consisted fo two steamcylinders, 24 inches in diameter and 4 feet stroke, with aparallel drum, 8 feet in diamete
RM2AG6A87–. Handbook of construction plant, its cost and efficiency. lH iH eg in© H OMO-jINHOlO *O00Hl0O co »iocq Sot- o> m X©ce»s .: -ft ? •*£ ::° a . ?3S3rt-^;g • ??? •?So, <b£°So2-s002 22 2-2 287 288 HANDBOOK OF CONSTRUCTION PLANT The stationary steam engine shown in Figure 101 is of thebox-bed type, made very heavy; balanced fly-wheel and pulley,D slide valve; complete with all fittings except steam connec-tions, exhaust pipe, and governor belt. Horse-power No. of revolutions....Cylinders, diameter and stroke, inches S^xlO Diam. of flywheel, ins..Leng. of bed plate, ins.1,000Width of bed plate
RM2AWWCXR–Railway and Locomotive Engineering . i in.;thickness of sheets, back, f| in.; thick-ness of sheets, crown, ->^ in.; thickness ofsheets, tube, J/2 in. Water Space.—Front, 5 ins.; sides, 5ins.; back, 5 ins. Tubes.—Diameter, 5J/2 ins. and 2% ins,material, steel and steel; thickness, .148in. and .125 in.; number, 40 and 200length, 20 ft. 5 ins. and 20 ft. 5 ins. Heating Surface.—Firebox, 228 sq. ft.. -MIK.^DO 2-S-2 TYPE LOCOMOTIVE FOR TOE B.LTIMORE & OHIO RAILRO.AD.Baldwin Locomotive Wcrls. Builders. Class Q-4, and have cylinders 25->4 inchedin diameter by 32 inches stroke. The steam distri
RM2AXDDXE–Bulletin . /^/c/cy//hg Oye/y/otp ^yoona^ ^^^I. OtV///o/p^ ^flz^^hjftw Figure 7. Flow sheet of mill in Granby district, Missouri. X, lead concentrates; Z, zinc concentrates;-V, middling; T, tailing; R, retmn. For significance of numbers see table on opposite page. ORE-DRESSING PRACTICE. 41 Data on parts shown in figure 7. 1. Mill storage bin, 400-ton capacity, all ore through 6-inch grizzly. 2. Shaker screen, ^-inch plate with l^-iQch openings, stroke 1^ inches, speed 125 strokes per minute.S. Crusher, Blake type, size 24 by 12 inches, speed 350 r. p. m., set for IJ^-inchopening. 4. Cornish rol
RM2AM7W1W–Transactions . < s i o < g« w a - a<O «• -< * CO sT °g O 5 si o o fc COAL-SHIPMEXT AXD THE LAYIXG-OUT OF STAITHE HEADS. 221 with cylinders 9 inches in diameter by 12-inch stroke, driving afly-wheel 42 inches in diameter, off which a four-ply 8-inch rubberbelt on a 42-inch Dodge split-pulley drove a 2-inch shaft toa geared bevel-wheel 5 feet in diameter, placed horizontally ona 6-inch perpendicular shaft immediately above the rope-wheel,7| feet in diameter. The driving-shafts make 14 revolutionsper minute. The rope is 1£ inches in diameter, and of ordinaryXiang lay.. Pig. 54.—View o
RM2AWDR78–Hydraulic, electric, steam and belt elevators. . NEW OTIS FREIGHT ENGINE. FOR BLAST FURNACES, BREWERIES. WAREHOUSES. ETC 11 artieulars see ge 14 1 I THE OTIS STANDARD ELEVATOR. Standard Sizes of the Otis Safety Steam Elevators As illustrated on pages 12 and 13. STYLE OP STEAM CYLINDERS SUITABLE WORKING No. SPEED OF PLATFORM. LOAD I vilNE. Diameter. Stroke. AT SPEED STATED. 6 & inches. io inches. i 50 feet per minute. 1,500 pounds. 3 ?, / io j 50 2,000 O, a 8 8 . to • r.50 3,000 £ * / ( 9 IO [50 4,000 6 6 in< Kes. io inches. i 50 feet per minute. 1,500 pounds. i / ; *• io 150 2,000 M 0 • f -
RM2AG4N2R–. Handbook of construction plant, its cost and efficiency. ed 7i4xl0 9 130 10,917 $1,130 2.26 8^x10 12 130 13,007 1,220 2.61 9 xlO 15 130 14,206 1,365 2.62 10 xlO 20 130 15,823 1,600 2.61 11 xll 25 130 20,368 1,880 2.52 12 xl2 32 160 32,600 2,820 2.37 COMPOUND TRACTION ENGINE. Length Miles of Bore per and Steam Hour at Stroke Rated Pressure Weight Normal (Inches) H. P. (Pounds) (Pounds) Price Speed 5%x 81/oxlO 9 130 $1,220 2.26 6i/sx 9 xlO 12 130 1,315 2.61 7 xlO xlO 15 130 1,455 2.62^ 7%xll xlO 20 130 1,690 2.61 914x13 xll 25 130 1,975 2.52 For Straw Burning Attachment, including Jacket on Bo
RM2AG6MCN–. The Granite monthly : a magazine of literature, history and state progress. new Cross com-pound condensing engine of 400horse power. The high pressurecylinder is 16*2 inches in diameterwith a 30-inch stroke, and the low ; ? •? s&n i.mesbury v, 3srr.. 3^0 ??• i 1 m r , 2 £ to 5 1 E | I J ON ROCKINGHAM ELECTRICS. 341 pressure cylinder is 30*2 inches in all of the engines, adds some live diameter with a 30-inch stroke. The steam and with it heats the feed engine is directly connected with its water for the boilers. After doing generator. That is to say, no belts this work the exhaust steam goes
RM2CR3B49–. Summer excursion routes and rates .. . DOUBLE STROKE. Nickel-plated. 2^ inches. Price, . 25 Cents Each. Postage, 5 Cents. NONPAREIL TOE CLIP. Tempered Steel. Nickel Polished. Price, . 15 Cents Pair. Postage, 5 Cents. H. & M. LAMP. Made on an entirely new prin-ciple ; detachable oil well; coloredside lights ; full nickeled. Price, . . $1.25 Each.Postage, 13 Cents.
RM2CH6R1H–. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . the four wheels with the connect-ing rods by it to come into the crank-shaft. The cylinders were about 6-inchesbore and i6-inches stroke. Wheelsabout 4^ feet in diameter. The wholemachine weighed about 4V2 tons. As the tons were long, or 2,240pounds, the total weight was about10.000 pounds. Figured by our presentrules, the traction force with 50 poundsboiler pressure, was about 400 pounds.Running at a speed of 20 miles an hourand working steam at three-quartersstroke, the engine would develop
RM2CH07E2–. Locomotive engineering : a practical journal of railway motive power and rolling stock . , SA and trying conclusions with the heading, inches. All the handles of the running machinery behind the boiler, including the regulator,reversing gear and the brake, are ar-ranged to be rapidly unshipped and re-fixed, so as to be suitable for workingthe engine cither in the upper or lowerposition. The engines have inside cylinders 11inches diameter and IS-inch stroke, sixwheels all coupled 2 feet 9 inches diame-ter. The boiler is made of the best inildsteel, and the firebox of copper, brassboiler tubes
RM2CNM2MF–. American engineer and railroad journal . 17, is required when riveting on various thicknesses ofmetal. The dolly bar has a movement of V/2 inches. The first24 inches is known as the rapid movement, which is set downdirect by the pressure of 80 pounds from the receiver tank.The last 2Vi inches is the effective movement and develops themaximum pressure, giving a uniform squeeze throughout theentire stroke of the last 2% inches, which causes the hot rivetin the hole to be upset, filling the hole. The pressure is exerted on the dolly bar through the hydro-carbon fluid, which is non-freezing, and
RM2CH2PCJ–. Cassier's magazine . edof the plungers varies from 100 to 200strokes per minute, and the lengthof stroke varies from 1% to T/. inch,according to the coarseness of thecoal to be washed, the high num-ber of strokes and the short strokeadopted for the finer sizes of coal. The speed of the nut washingplungers varies from 50 to 100strokes per minute, and the lengthof stroke varies from 5 to 1^2 inches,according to size of the coal treated. (b) Jigs with movable sieves. The best-known of this kind is theSheppard two-compartment felsparwasher. The sieves are attached totwo rods, which are secured
RM2CDGDTX–. Electrical news and engineering . the effectivepressure of the steam on the piston during each division can beread with the scale of the spring in use. In practice it is convenient to make the number of divisions amultiple of the inches in the stroke—that is a number whichdivides it without a remainder. In this case there are twelvedivisions, and each one equals three inches of the stroke. In allof the figures F is the stroke from the crank and T towards. In Figs. I, 2 and 3 the pencil was kept on the paper during 50revolutions. The variations in work done are shown in dark 4th. Sufficient e
RM2CH0A0Y–. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ing purposes, and built bythe B. F. Sturtevant Company, of Boston,^lass. The engine has a cylinder 3 inchesin diameter and a stroke of 2/< inches. It is self-contained, as is clearly indicated,and the speed is regulated by shaft gov-ernor. It has a piston valve, adjustablebearings, with direct-oiling devices. Aspeed of 300 revolutions per minute isattainable, and may be constantly main-tained with accurate regulation. The generator is of the 2^i-kilowattsize, designed to develop its rated
RM2CGWP2F–. Science of railways . ngth of card 3.75 inches.In the standard drum instrument, the pencil has a move-ment of 3.00 while with the smaller drum, the pencil motionis limited to 2.35 inches. The ratio of travel between thepencil point and piston is 5 to 1 in both the outside and inside LOCOMOTIVE APPLIANCES. 603 spring indicators with either size drum. The drum spring is ofa design which practically maintains a constant tension on thedrum carriage throughout all parts of the stroke, giving asmoothness and uniformity of action which insures the mostaccurate results. The tension of the drum sprin
RM2CGTMDY–. Locomotive engineering : a practical journal of railway motive power and rolling stock . GREAT NORTHERN PASSENGER ENGINE. It will be noticed that with the exceptionof having inside cylinders, the engine haswhat be called an American look, the cabbeing much larger than we find on theordinary run of English engines. Thecylinders are 17^2 x 26 inches stroke andthe driving wheels are 79 inches in dia- Painting the back of glass black afterthe engine number is put on, causes thelatter to stand prominently forth fromits mirror-like setting, and makes it oneof the tastiest conceptions for a detail
![. The railroad and engineering journal . eam-valves, of the high-pressure cylinder, the two intermediatevalves between the steam cylinders and the two exhaust-valves to the low-pressure cylinder. The steam-valvesare of the automatic liberating kind, the point of cut-offbeing adjustable by hand and by the automatic pressure-regulator, which governs the cutoff according to thehead against which the pumps arc working. The inter-mediate and exhaust-valves^jave fixed motions. Stroke, steam pistons [nominal] 30.0 inches. High-pressure piston-rod [i] diameter 2.635 Low-pressure [2] 3-4=75 Clearance, Stock Photo](https://c8.alamy.com/comp/2CH64B4/the-railroad-and-engineering-journal-eam-valves-of-the-high-pressure-cylinder-the-two-intermediatevalves-between-the-steam-cylinders-and-the-two-exhaust-valves-to-the-low-pressure-cylinder-the-steam-valvesare-of-the-automatic-liberating-kind-the-point-of-cut-offbeing-adjustable-by-hand-and-by-the-automatic-pressure-regulator-which-governs-the-cutoff-according-to-thehead-against-which-the-pumps-arc-working-the-inter-mediate-and-exhaust-valvesjave-fixed-motions-stroke-steam-pistons-nominal-300-inches-high-pressure-piston-rod-i-diameter-2635-low-pressure-2-3-4=75-clearance-2CH64B4.jpg ". The railroad and engineering journal . eam-valves, of the high-pressure cylinder, the two intermediatevalves between the steam cylinders and the two exhaust-valves to the low-pressure cylinder. The steam-valvesare of the automatic liberating kind, the point of cut-offbeing adjustable by hand and by the automatic pressure-regulator, which governs the cutoff according to thehead against which the pumps arc working. The inter-mediate and exhaust-valves^jave fixed motions. Stroke, steam pistons [nominal] 30.0 inches. High-pressure piston-rod [i] diameter 2.635 Low-pressure [2] 3-4=75 Clearance, Stock Photo")
RM2CH64B4–. The railroad and engineering journal . eam-valves, of the high-pressure cylinder, the two intermediatevalves between the steam cylinders and the two exhaust-valves to the low-pressure cylinder. The steam-valvesare of the automatic liberating kind, the point of cut-offbeing adjustable by hand and by the automatic pressure-regulator, which governs the cutoff according to thehead against which the pumps arc working. The inter-mediate and exhaust-valves^jave fixed motions. Stroke, steam pistons [nominal] 30.0 inches. High-pressure piston-rod [i] diameter 2.635 Low-pressure [2] 3-4=75 Clearance,
RM2CE1N0X–. Marine Engineer . Fig 2 square inch at Soo revolutions per minute. Thediameters of the cylinders are 3 ins. and 6 ins. re-spectively, and the stroke is 3J inches. The valvesin this engine are operated by the Savery-Joy valvegear. Fig. 3 shows a side sectional elevation and a partsectional joint elevation of the engine illustrated in Fig. 4 Fig. 2. This diagram shows the construction andarrangement of the valve and the mechanism foroperating the same. It will be noticed that in thisgear the slotted quadrant of the Joy valve gear issubstituted by a radius rod pivoted at the end of apivotable a
RM2CH74JR–. Revised and enlarged ed. of the science of railways . Locomotive ami Tender Combined. Berlin-IIainhurg Railroad. Diameter ofcylinders, 16.53 inches: stroke, 24.0:2 inches; diameter of driving wheels, 62.68inches; weight of locomotive, 70,765 pounds; water capacity, 1,188.78 gallons;coal capacity. 2,712 pounds. will be for the industries of the world, and thegreater the number of comforts that will bebrought within the reach of mankind. The manufactories of locomotives and cars mthe great commercial countries of the world arethe outgrowth of natural causes—represent, infact, an evolution co-e
RM2CR39XM–. American engineer and railroad journal . andfreight service, Il has the Rhode Island type of intercept-ing valve. The cylinders are 19 inches and 29 inchesin diameter, with a piston stroke of 26 inches, and drivers5 feet 2 inches in diameter. February, 1896 AND RAILROAD JOURNAL. 21 Alt locmiiotives upon Hie roacJ are equipiied with the oneetandard teDder. Tliis is illustmied very clearlj by iheenKraving wbicb we present. The tires are held by Man-sell retaining ringB, the brakes are hung from llie framing,the truck in of the diamond type, with an intermediate the sidi- sill and tipped under
RM2CH5RTD–. The railroad and engineering journal . nced valve with stroke of 2 to. 4inches, according to position of governor and eccentric,a fly-wheel 50 inches in diameter, weighing 2,300 pounds,the steam and exhaust-pipes having diameters of 2>2 and4 inches, respectively, and the whole machine weighing2^ tons. The space occupied by the engine was 9 feet4 inches in length, by 4 feet 8 inches in width, and 3 feet10 inches in height. Examining the above table of powers, it is seen that thedifference between indicated and dynamometric power,the friction of the engine, varies somewhat, with varyingstea
RM2CF5KCB–. The Iron and steel magazine. smiths etc., for testing the hardness of coppercollectors and other fittings. The pressure is recorded on thedial shown in the head of the press, and the ball has a maximumstroke of 2 inches. A larger form of the same press is made for testing objects of greater thick-ness, in which the stroke of theball is 6 inches, the actual heightabove the base plate being ad-justed up to 14 inches, accord-ing to the thickness of the testpiece, by wheels and locking nutson threaded pillars at either sideof the frame. Figs. 2 and 3 show the new-est pattern for working with hig
RM2CH4HAB–. Electric railway gazette . nd the steam main is provided with a valvein the centre so that in case of accident one-half stone trimmings. It consists of two bays, oneof which contains the engines and the otherthe boilers. The roof is supported on steeltrusses which were furnished by the PhcenixBridge Company. - The engine room, Fig. 2, contains, at present,three Mcintosh & Seymour tandem compoundcondensing engines of 600 hp each, withcylinder dimensions 16 and 32 inches and 24-inch stroke. They are run at a speed of 150 revolutionsper minute and have fly wheels 10 feet 6 inches in diameter.On
RM2CRW960–. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . FIG. 1710, BOTTOM SUCTION. FIG. 1711. SIDE SUCTION. DIAPHRAGM TRENCH PUMPS. -Figs. 1710 and 1711. NUMBER.... . ... ........ 1 2 , SIZE OF SUCTION . INCHES 2+ 122.00 3 U24.0030.00 CAPACITY GALLONS PER STROKE FIG. 1710 . - EACH FIG. 1711 ... .-.-. -- EACH — - - — Price, 12 feet of 3-inch Spiral Flat-wired Suction Hose (sj)ecially made for this purpose), fitted with Brass Strainer, Hose,Nipple, and Coupli
RM2CH2HA3–. Locomotive engineering : a practical journal of railway motive power and rolling stock . C. H.Quereau in his paper ou Steam Distribu-tion for High Speed Locomotives, read atthe Western Railway Club. The processis as follows : A point on the expansionline just previous toselected. The steampoint and the perioflreadily determined,pounds and 16 inches,ig-inch by a4-incb, ancinder clearance, the volume of the cylinderat 16 inches of the stroke is 2.86 cubic feet.From the indicator card we know that, atifi inches of the stroke, the cylinder wasfull of steam at a pressure of 51 poundsper square in
RM2CDXWC3–. Teacher's handbook of Slöjd . arm, and secured by a strokefrom the mallet on the heel, in the direction a, and isloosened by a stroke in the direction h. The holdfast maytherefore serve the same purpose as the back bench vice. The shooting board is a contrivance which may beadvantageously used when a partially planed piece of woodhas to be squared up at right angles to a plane surface or astraight edge. The shooting-board (Fig. 12) consists of a piece of hardpine IJ inches thick, 8 inches broad, and from 2 to 2|- feetlong, on one side of which there is a rebate, which serves asa guide to the
RM2CH5KMW–. The street railway review . FIG. 4. consumed by it in so starting. The balance is wasted inheating motors and resistance. Various forms of gear-ing have been proposed to overcome this. The electricalmethod devised by H. Ward Leonard several years agoaccomplished the end but the apparatus necessary added These pump cranks are on the motor axle and can begiven any stroke from zero to 3 inches. A general plan of the motor and hydraulic gear isshown in Figure i. Figure 2 is a section through thepumps, and Figure 3 a section through the fluid motor 552 (^jMaectiifailw:ay9^^ on the car axle. Fig
RM2CRW8BR–. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . FIG. 1710, BOTTOM SUCTION. FIG. 1711. SIDE SUCTION. DIAPHRAGM TRENCH PUMPS. -Figs. 1710 and 1711. NUMBER.... . ... ........ 1 2 , SIZE OF SUCTION . INCHES 2+ 122.00 3 U24.0030.00 CAPACITY GALLONS PER STROKE FIG. 1710 . - EACH FIG. 1711 ... .-.-. -- EACH — - - — Price, 12 feet of 3-inch Spiral Flat-wired Suction Hose (sj)ecially made for this purpose), fitted with Brass Strainer, Hose,Nipple, and Coupli
RM2CJ1RPJ–. The bicycling world . bo CraMAo PP. ■S 2. o G o O The Springfield Roadster, complete, with Fish AdjustibleSaddle, $75,00. Enamel finish, with nickel-plated trimmings.Diameter of front wheel, 50 inches ; diamtter of rear wheel, 20 inches. The Springfield Koadster is made of the best weldless stetltubing and steel drop forgings, warranted against defects in workman*ship or nuiterial. For illustration of the wheel in sections, see de«scnption. SSAIl wheels fitted to suit the strength of the rider. None develop thewalking muscles like the forward stroke lever motion of the Spring-field Roadster.
RM2CGXJYW–. Railway mechanical engineer . ight Mikado. be published in connection with a description of the loco-motives. TONNAGE RATING CHARTS The tonnage rating charts * are so designed that the maxi-mum hauling capacity of the locomotives in tons of 2,000 lb.can be read directly from them for any combination of speedand grade within the given limits. The tractive effort formula used in the calculation of thecharts is: • The»« charts havp been cofiyrighled by Mr, Xincent. T = W T ^r Tractive power,d = Diameter of cylindersL Stroke in inches.P = Boiler pressure — lb.Diameter of driving w V The drawb
RM2CH5NJ1–. The railroad and engineering journal . Vol. LXI, No. 2.1 ENGINEERING JOURNAL. 73 a forward state of preparation, your iUlcntioii is liircclcdto the machine as at present adapted to tensile strainsonly, reserving to the near future a presentation of thecompleted inachine. Plate 1 represents a general plan and elevation withsections. The cylinder is of cast-steel, 4 feet 3 U inchesdiameter and 6 feet o!; inch long, giving an eflcctive areaof 2,039 square inches, and a working stroke of 4 feet 11inches. The maximum water pressure for which provis-ion has been made is 600 pounds per square inch,
RM2CR3B43–. Summer excursion routes and rates .. . DOUBLE STROKE. Nickel-plated. 2^ inches. Price, . 25 Cents Each. Postage, 5 Cents. NONPAREIL TOE CLIP. Tempered Steel. Nickel Polished. Price, . 15 Cents Pair. Postage, 5 Cents. H. & M. LAMP. Made on an entirely new prin-ciple ; detachable oil well; coloredside lights ; full nickeled. Price, . . $1.25 Each.Postage, 13 Cents.. VEST POCKET CUP. Collapsing. Nickeled. Price, No. 1, 8 Cents Each. Postage, 2 Cents. Price, No. 2, Large, 20 Cts. Each. Postage, 5 Cents.
RM2CNCAMD–. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . -. FIG. 1710. BOTTOM SUCTION. FIG. 1711. SIDE SUCTION. DIAPHRAGM TRENCH PUMPS. -Figs. 1710 and 1711. NUMBER 1 2 SIZE OF SUCTION . INCHES 2* 1 22.00 3 H- 24.0030.00 CAPACITY ...... GALLONS PER STROKE FIG. 1710 . -.. EACH FIG. 1711 ..... EACH — . . — „ Pi-ice, 12 feet of 3-iuch Spiral Flat-wired Suction Hose (specially made foi- this isiirpose), fitted with Brass Strainer, Hose,Nipple, an
RM2CEM7R0–. Outing. J. C PARKE AT THE FINISH OF HIS SERVICE. 196 THE OUTING MAGAZINE ever, Parke came up toexpectations and gaveClothier a busy time withfast volleys and cleverplacing; at one time he waswithin a few inches ofwinning the set, the ballgoing out by a hand-breadth in a stroke thatwould have meant victoryfor the visitor. Morethan once, especially in thesecond set, the Irishmangave the American troubleby his clever placing downthe side line. In the second days playat singles the matchingwas changed and Larnedbeat Parke by 6—3, 6—2,6—3, while Clothier wonagainst Dixon by 6—3,6—1, 6—4. The stor
RM2CRDMY9–. Our iron roads: their history, construction and administration . w, on a level, a load of 240 tons at a speed of 45 milesan hour. LOCOMOTIVES. 335 Among the latest and best of these wonderful machines arethe main line six-wheeled the and eight-wheeled bogie passengerlocomotives of the Midland Railway. The former have cylindersof 18 inches diameter and 2 feet 2 inches stroke. The drivingwheels are 6 feet 9 inches diameter, and four are coupled. Theseengines will draw 26 coaches upon a level at the rate of 50miles an hour, or 19 coaches up a bank of 1 in 100 at the rateof 30 miles an hour. The
RM2CNC918–. Illustrated catalogue of James B. Clow & son, manufacturers of and dealers in supplies for plumbers, steam and gas fitters, water and gas works, railroads and contractors .. . FIG. 1710. BOTTOM SUCTION. FIG. 1711. SIDE SUCTION. DIAPHRAGM TRENCH PUMPS. -Figs. 1710 and 1711. NUMBER 1 2 SIZE OF SUCTION . INCHES 2* 1 22.00 3 H- 24.0030.00 CAPACITY ...... GALLONS PER STROKE FIG. 1710 . -.. EACH FIG. 1711 ..... EACH — . . — „ Pi-ice, 12 feet of 3-iuch Spiral Flat-wired Suction Hose (specially made foi- this isiirpose), fitted with Brass Strainer, Hose,Nipple, and Cou
RM2CH3DHF–. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . inder during one revolution of 7T driver is = 2 X (d: — L X P), where 4d = diameter of cylinder in inches, L = March. 1915. RAILWAY AND LOCOMOTIVE ENGINEERING 77 length of stroke in inches. But there aretwo cylinders in the locomotive, hence thewhole work done by the steam during thistime is = d: i L P. Now, while thedriving wheel makes one revolution, thecenter of the axle, if there is no slip,moves forward a distance ■ D, and thework done is = D T. Equating thesetwo values of the work done