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SEPTEMBER, 1888. ■^^-"*>'-7 j^^^^^^||-> 63.61 143 170.87 ! 25 490.87 364 1046.4 48 1809.6 H <».G2 '.»i 67.20 15 176.71 ! 255 510.70 37 1075.2 484 1847.5 3| 11.04 !»i 70.88 15J 182.65 26 530.93 374 1104.5 49 1885.7 4 12.5(5 n 74.66 15i 188.69 26i 551.54 38 1134.1 494 1924.4 4i 14.18 10 78.54 153 194.82 27 572.55 384 1164.2 50 1963.5 ^ 15. '.)0 io,t 82.51 1(J 201.06 : 27i 593.95 39 1194.6 504 2003.0 4J 17.72 lo.i 86.59 m 213.82 28 615.75 394 1225.4 51 2042.8 5 l'.I.C3 mi 90.76 17 226.98 284 637.94 40 1256.6 514 2083.1 5,} 21. ()4 11 95.03 17^ 240.52 29 660.52 ^04 1288.3 52 2123.7 5i 23.75 ivt 99.40 18 254.46 294 683.49 41 1320.3 524 2164.8 53 25. im 11.^ 103.86 18i 268.80 30 706. ISO 414 1352.7 53 2206.2 G 28.27 113 108.43 19 283.52 304 730.61 42 1385.4 534 2248.0 «.t 30.07 12 113.09 19.J 298 . 64 31 75 4.76 424 1418.6 54 2290.2 r,^ 33,18 12i 117.85 20 314. i 6 314 779.31 43 1452.2 •544 2332.8 ()J 35.78 m 122.72 20i .330.06 32 804. 2.> 434 1486.2 55 2375.8 7 ;-iS.-l8 123 127.67 21 346.36 324 ^^9.57 44 1.520.5 554 2419.2 7i 4 J. 28 13 132.73 21A 363.05 33 5.30 444 1.555.3 56 2463.0 7i 44.17 13t 137.88 22 880.13 334 881.41 45 1590.4 564 2507.2 I. 2. 3- 4- 5- ■■■■•••■■■■■■■■■■■'■■'^■•■■•■••■■■■•••■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■'■■■■■■■■■■■■■■■■■■■■■■■■'■'"■■■'■■■'^■■■■■■•■■■■■■■■■■■■■■■■■■■•■■••■■■■■•■■■■■■■■■■■■■■■■■•■■■■■■■■■■■■■■■•■■■■■■■iiiiiiiiiiiiiiiiiiiiaiiiiiiiii*i>i>ttiiiiiiiiiiiiiiii NORTHEY & CO. PUMPING MACHINERY " IIIIIIMIIMIIIIIIIII ■IIMIIIM I Ill I , (•■■■•••■IllllllI ■ MIIMIIIIII ■■••■■■■■■■■■I •■■■■ •■■■■■■.,i "" ■ ' •"< • miH..... I..::..!:.!:!!::!:!:::!:!!:!!:;;;:;:;::,:!;;;::;:;;;;:;:;:;;:::;;; ■iiiiiiiiiiiiiaiiiiiiiiiiiiiiiiiiiiiffi«tiaiiiiiiii»iiiiii ■■■■■••■■•■••■■■■■••••■■•■■■■■■••■■■•••^■••■■••■■■■■■••■■•■■•iiiikaiaaiiiatittM NORTHEY 8z: COS PUMPS @ ^" '^^ """p'""^' ^t^""^^^* ^"d '^ — most durable in the market. Every I'timp fully f,aiaranteed and rigorously tested before leaving the works; In ordering a Pump, please answer the following questions carefully, as by so doing I. 2. 3- 4- 5' much correspondence may be saved : What is the maximum quantity required to be pumped per hour ? To what height is it to be lifted by suction, and to what height is it to be forced ? What is the length and diameter of existing suction and discharge pipes, if any ; and the number of elbows or bends ? What is the liquid to be pumped, and is it hot or cold, clear or gritty, fresh or salt, alkaline or acidulous? What is the average pressure of steam used ? Directions for Setting Up and Operating Pumps The most important point in setting up a pump is to pro- vide a full and steady supply of the liquid to be pumped In order to insure this, carefully observe the following : The suction pipe must in no case be smaller than sizes given in tables ; if long, it must be larger, as friction in- creases very rapidly with length of pipe. It must be as straight and free as possible ; and where turns are necessary, see that round, full sweeps are used in preference to right-angled elbows. V'alves and elbows in a pipe cause much more friction than length of pipe. The utmost care must be taken to guard against leaks in the suction pipe, as a leak infallibly diminishes the quantity of water pumped, according to its size. A suction air \essel, on suction pipe near the pumps is a great advantage, on long or high suctions, and where high speed is desired it is a necessity, as it prevents pounding when the pump reverses. A foot valve is also useful on long or high suctions ; see that its area more than equals that of pipe. Water at a high .emperature cannot be raised to any height by suction ; in pumping very hot water the supply should flow into the pump by gravitation. The steam, exhaust, and discharge pipes, should be straight and free as possible, and as large as given in table. To prevent freezing in cold weather while pump is stand- ing, drain it by opening cocks provided for that purpose. Use your pump as you do your engine, if you expect it to always work well. ' " iiiiiiMininniiHii 1 1 nil ■■■■•■■ I I ■■■■■■■■■■I ■■■If ■■■■■■■■■iiiii I ■■ 1 nil iiMlniMiiiMui nil •■§ I Northey's Patent Steam Pump For lioiler Feeding, Water Supply and Fire Protection •■■■■■■■■■■■■■■llllll ■•■■••iitaitiiiifiiii NORTHEY & CO. PUMPING MACHINERY •••••mnumn nnanMiiiu ■ ,„„ mhmii ■ •••nm i iiin j...,,, „,„ „„„ ,„„ miihiiii The Northey Pump Being positive under any pressure, may be run as slowly as desired ; this is an important feature in boiler feeding, as a con- tinuous flow of water is obtained, exactly compensating for amount evaporated, and resulting in economy of fuel, and dura- bility of boilers. The Nortliey Pumps have suction and delivery openings on lioth sides of Pump, thereby suiting them to any desired position. They are fitted to pump either hot or cold water. Sizes and Prices Bteam €ylin- Water CvHn- fltroke. tfet, in Inches der, in inches in inches 4 2^ 4 6 H 5 « Hi 6 l-~ 4, 7 8 n' K 10 6 W 12 7 12 14 8 12 Capacity per Discharge iiiinuto at fair Steam Pipe Kxhanst Pipe Suction Pipe l>i|)i. PKK'R speed, ^'alloHK 20 h i H 1 81H0 00 HO i 1 U « 170 00 40 5 1 2 200 00 60 1 1.^ 2i fi 275 00 100 H 2 s n 330 00 150 H 2 4 9 400 00 200 2 2J 5 4 475 00 300 2 2^ 6 4 576 GO "•" mMiMMiMitHMMt ■■■ >•■■■ I I (•iitiiiiiiMiiiiiiiiiiiiiiiii m ■■■■(■HI iiinaiin iin iitiiMiiiiiii Mmntiniiiiiii ■iiriiBiiiiiii • ■••tinwM.tt.il. ,„mm ...»....• •• , , ......iii.. i,,,., ■■..■••...>■■> in ••••••itnminmmV>rtMt..."m"m^^^^ Northey & Go's Special Steam Pump I'or Mining, I'irc Protection, and Watt^r Supply m NORTHEY & CO. PUMPING MACHINERY Northey & Cos Special Steam Pump Is of stronj^ and massive design, siiitttd for the heaviest kind of service; very reliable and powerful Sizes and Prices. Sizo Stwuii Cylilidcir in inches. Hizn Water Cyliiulev in inches. l.lMIHtll of Stroke. Indies. Capacity pur minute, at ordinary Kpood. (iallons. Steam I'ipe. Kxlniust Pipe. hu^lies. Huction Pipe. Inelies. DiscliarKe Pij)e. Inehes. PRICES. l() S IH 100 H (> 5 Prices IS 10 IS (iOO 2^ H 8 8 ON •20 12 21 HOO » •1 10 10 Application. .,,,,,„ I ■■■■■1 ■ •■ ■ •■•■tlllllllMI ■ ■■■■■■■^■■■■■■■■■■■■•■■■■•■■■■■■■■■■fllllli ■■■lllltMEIIIillllllMIt ■■■■■•■■■■■■■■■■■■■■■ I (••■■■•■■■tIMIMI •■ ,,,,,, , iiliiaMIII ■■■■■■IMIII IIIHI •■■■•■•■■■■■■■■■Ill ■ I I •■■■■■■■■■■■■■■■■■■■■>■■■■■■ •• ■! ■ ■■>■•■•• ••■■•■•••■■» ••••■■■■■I »ll»lll ■■■ii C/3 b o > X o z a e a U 0) (/: a c o O a B Oh NORTHEY & CO. PUMPING MACHINERY III! ■IIIIIIIIIIIIII I ■(■■■■(IIIKI ■(■(•Ill IIKII Ill (■•■■ •■■ Ill ■■[■•■■I(l>( ((•(( (((((<(((((((((( >I((II (■■■((((((((((■■■■■■■■■■•■■■■■((■((((■■^ 1 11 ■ ■•••••■■■•■■•■■■••■■••■■(((((((((((((■((((((■■■(■■■^ IIIIIIM^ •■■■■(■■■•■(■■■■■•■(■■■(((■((((((((((((■( •■■ ' ■(((■■(IIIIIIIIIIIIII ■•■■■■■■■•■■Il(((((((((((((((((((((((((((((((((((((((((( (((((( (•(■■■••I NORTHEY & COS Independent Air Pump and Condenser -. easily attached to any hixli pressure Steam Engine, Stationary or Marine. Will so economise in fuel as to pay for itself the tii'st year. Simple in operatiiMi, ar lifts its own injection water twenty feet, if necessary. Cannot possibly Hood the engine. Sizes and Prio < steam ■CvlitoAW. ■ Air Cylinder. litrokc. 4i « (> 6 H 'ii 8 12 12 10 \-) 15 12 18 18 14 20 24 HoVBo I'owfv of Kn^iii''- 80 150 250 850 450 Steam I'irt; ■ Injection Viyie. PRICKS. iilKlMKII ,,,,. itiuMninNi>iiriitniiii((((i((((((((((i(((iiii((((((ii(("ii((((i((((("(( (((((((((((((( ( (((((( ( (((((((((■((•(((((((((( (■(••••■•(((■••i ■■•■•i • "',,,,,,,,,, i.mM»illillliNIHI(ir((^((((((IHMMIMJ((l((((((((((( ((((((((••((((■■ •(((((((••••( ( (((((((■■((■■nilHIIII(MMM(l(((l^((l((>(((((((((MlfI(IMIini(l(IMHIIillllllIIIIIIMUMIIIIII"I»»" •■•■■■•••••I ■laiiiiiiiiiMitiiiM ■■•••• ,=============" ■■ ■■ = • - ====== Northey Sc Cos Tank or Low Pressure Pumps. s..i.\"^.r.?grs;sath'«.r.TS ^:rr5"if^» "^ «'-..«, ,„ ,. .ode™. ...... ■ ■•mill iiiiiiiii •■■■■■■■■■■■■•••■■ii Details, Sizes? and Prices Diamoter Stoiim Cylinder. 4 4 5 « 7 8 8 10 10 12 12 14 14 Diameter Water Cylinder. Length Stroke. H H 4 5 () •5 7 8 10 10 12 10 12 Strokes per Minute. Capacity at Ordinary Speed per Minute. Si:'.e Steam Pipe. 1 1 to SOO 20 4 1 to mo .<0 5 1 to 800 . 50 6 1 to ;iOO ()() 7 1 to 250 144 S 1 to 250 150 8 1 to 250 20H 10 1 to 250 2(55 10 1 to 250 110 12 1 to 200 410 12 1 to 200 5'.I0 12 1 to 200 410 12 1 to 200 590 Size liixhaust ripe. Si/e Suction Pipe. Size Discharge Pipe. PKICE. Til I f ■.i 1 H H n n 2 2 2 ■i 1 1 n 2 2 2 2 n 2i 2A 2 1 U 2 H 2 2i 4 "2 4 4 4 5 4 5 4 7 7 H S 7 7 fi f 150 00 ItiO 00 190 00 240 00 800 00 880 00 8(10 00 425 00 475 00 525 00 Prices on application. Tl Larger Sizes or other combinations to order. All Pumps guaranteed satisfactory. ■,,=^~,-:^============ = •••"-"•■•■" ■■ == "mmmi i.iiiiMiiim"i"i>««"« "'" •■■■■■■•■••■■••■■I iiiiiiiiiiiiiiiiii •■■■■■•■Iltllllll* ■■■•■■■■■■■■■■■■■> NORTHEY & CO. PUMPING MACHINERY ;;;;;;;;;r;;:::;:;::;:=r:=;:r:=r;=^^ THE NORTHEY Special Mash Pump, for Brewers' Use These Pumps are speci ally adapted to their work, and will pump thick beer mash, clear beer, or water, hot or cold, with equal facility. Thev n.v.r rlo^ ; an- simple, si.on.u and compact ; work for years without repairs, an.l ar.. .uaranlee.l in every respect. Details, Sizes, and Prices, on application. iiiiiiiiiiiiiiiiiiii I i;;;r:;====r:=:=;=^^^^ =•••■••• •" ' • ===== NORTHEY & CO. PUMPING MACHINERY ;=::;;=;;;=;;= :;: : : : :- :- "=::- -=-= :";::;:=:::":""========= •" "*"""'*"iiittiii!SSiiiiSi:^:: Northey 8z: Go's I COMBINED Pump and Boiler ■■■IMIHIBIHIIIX*"*" =rr=====;==^ ■■■•■■■■■■■■••■■••••■I tMMMttti'lilt Tar»T3TH»v ft CO PUMPING MACHINERY ====. := === =========-=-^^ Northey & Go's Combined Pump and Boiler With fixtures complete, ready for use. This combination of steam pump and boiler comply is an -eH^t^e fc. n^^ P^ -<^ P- table. and can be placed at the point of supply, spnng, well, or nver, and ^^^^ ^^^'^^^"J^J^ ^^.^ j^^,, ,, ,et it up and run it, The whole machine is easily managed and understood, and does not requ re spec ally as a person of ordinary intelligence can acquire a perfect l<"-;l-dge of ^t^ m a ^ew hou . ^^^^^^ ^^^^ ^^^.^^^ We offer this pump and boiler, as most simple, compact and durable, and specially sui or rivers, to resiliences, hotels, railway stations, brewerie s, brick yards , public and pnvate mstuu.ons, etc. Details, Sizes, and Prices ler Dianietcv Dianietur Steam Cylimlov Water CyUudoi- 4 24 5 3 6 34 7 4 8 5 10 6 12 7 liiniKth of Htvoko () 7 S 10 12 Caiiacity in Gallons pei- hour 850 1200 1800 2500 :iOOO 5000 SOOO Size Suction Piin! 14 2 3 4 5 Size Discharge I'll't* Price, witli Boiler couii'l^te 1 li 14 2 '4 3 4 mrjQ 00 425 00 475 CO 550 00 050 00 1 r Prices on application MtMMIItfllinillll Northey & Go's Duplex Steam Pump l-or Boiler Feeding, Fire Prelection, .ind Keneral Water Supply a ■Sllllllllllllllllllllll>l» niaiueter Steam Cyliiiciei 6 8 10 12 14 1« l6 .■■■■■•■■•■■■■■■■•■■■■■■•> NORTHEY & CO. PUMPING MACHINERY Northey &: Go's Duplex Steam Pump (Improved Worthington type) for general Water Supply and Fire Protection. Sizes and Prices Diameter of Steam Cylinders Diameter of Water Plunders 6 8 10 1*2 14 IB 18i 4 5 (•) 7 ! Displace m't Length of ^ in gallons Stroke ' I'er stroke of one plunger 6 10 12 12 12 12 12 .3a .85 1.22 2.00 8.00 4.50 4.50 Projier Strokes per minute of one riunger. Gallons deliver'd! ; per minute by | 'both Plungers at, stated number j 1 of Strokes. Size of Piv)es for short lengths, to be increased as length nicreases. 75 to 125 (50 to 120 50 to 100 50 to 100 50 to 100 .")0 to 100 50 to 100 50 to 80 85 to 170 125 lo 255 200 to 400 800 to ()00 450 to !M0 450 to !)00 Steam Pipe. 1 U •2 2 •2h 8 Kxhaust Pipe. H 2 8 8 4 Suction Pipe. 8 4 5 t) 7 8 8 Discharge Pipe. PHICK I'hese Pumps are fitted with our Patent Removable Brass Sleeve, which can be replaced in a few minutes. 1==^^^^^^^^ :l U! lii NORTHEY & GO'S Single or Duplex Power Pumps •■•■■■■■■■■■•■•■••••■••■I Are dc vi* n ^-v'^ ■ III IIIIIIIIIIK ■■■■■■■■■(■■■••■■■■■■' MrtOTHPV A CO PUMPING MACHINERY NORTHiiT « \-u. X- «j 1*1 1^ i *-« V- =r=rr==r==^^ ^' NORTHEY & GO'S Single or Duplex Power Pumps Service of 1 owns and Cities. .. _^ - -- 1 ..rr ___^__;-— ^- --^ - - — - ^ -- _ -. - ■■ -■ Single Power Pumps Duplex Power PUMPii Water CvHnrter i Stroke i Capacity per minute j Water Cylinder ritrol.t! Capacity per minute ()00 gals 1000 " ISOO " () S 10 12 : 150 gals HOO • 500 " S 10 12 12 13 15 10 Prices on application Prices on application .=r===:=^^^^ „„I„I1 • IIMIIIIMIH" ■ NORTHEY & CO. PUMPING MACHINERY USEFUL INFORMATION STEAM A cubic inch of water evaporated under ordinary atmospheric pressure is converted into i cubic /oo< of steam (approxi" ^ Steam at atmtjspheric pressure flows into a Vnaiiim at the rate ot about 1550 feet per second, and into the Atmusphcrc at the rate of 650 feet per second. ,- u u •. 1 r .1 . . . . . The specific gravity of steam (at atmospheric pressure) is 411 that of air at 34' Fahrenheit, and .0006 that ot svater at same temperature. r ■• . 1 ^7,i22 Cubic feet of steam weigh i pound ; i.-5,«i7 cubic feet (jf air weigh 1 pound. Locomotives average a consumption of j.ooo gallons of water per 100 miles run. The best designed boilers, well set, with good draft and skilful firing, will evapori e from 7 to 10 lbs. of water per pound of hrst -class coal. The average result is from 25 to 60 per cent, below this. . ^ . , In calculating horse-power of Tubular or Flue boilers, consider 15 scpiare feet of heating surface equivalent to one uomi- mil horse-power. One square foot of grate will consume on an average 12 lbs. of coal per hour. ^ , tt n Steam engines, in economy, vary from 20 to 60 lbs. of feed water and from 2 to 7 'bs. of coal per hour per inoicated H.P, See table below for duty of high grade engines. ,, . Condensing engines require from 20 to 30 gallons of water to condense the steam represented b> every gallon of wa^er evaporated— approximately for most engines, we say, from i to ij gallons per minute per 1. HP Jet condensers do not require quite as much water for condensing as Surface condensers. Surface Condensers should have about 2 square feet of tube (cooling) surface per horse-power of steam engine It is absolutely necessary to place air-pumps below^ condensers to get satisfactory results. DUTY OF STEAM ENGINES. A well-known engineer of high authority gives the following comparative figures showing the economy of high grade „ieam engines in actual practice ; Tyi)e of Engine. 'I'eiiii)eraturL' of Kfi'd Water. Ijbs. of water Kvapor- atecl jicr lb. of Cum- berland Coal. Noii-Coudeiisiiig Condeusiiit,' Compound .Jacketed^ 1(W 10.. T 9.4 9.4 Pounds of Steam per I. H. V used per Hour. •29. at). IT PoundBof Cumberland]Co8tof I. H.P. per hour Coal used per I. H.P. ! suppoHing Coal at per hour. ' .■:r6.U0 per ton a. 7.-) 2.12 1.81 .•SO.IK)'/:! 0.00.56 O.OOI") „„„„„ ••■■■■■■■■I I'liiinn Ill" ■ I ■ •■ ' ' HniniuMi-:. ••"•".«< •■ • "" < ■" ""• "• ""■"'.'■''!"". 20 NORTHEY & CO. PUMPING MACHINERY nimMMinuMnHHin;;;;;"::;^"::!:":"::;;:-;::::;;:::;::::::;;^^^ :"■" " ■"•" ■■■" "• ■■ ■ • "• • < •■•■•> • JllllM.M •••■•■■I ■•■■•••■..Mill ••••■lUIM.in. ••.. „ „„„ , „,„. .„,llll„„„„,„„ „. , ..,„ Weight and Capacity of Different Standard Gallons of Water mil •■■n Imperial or English I'nited States . . . , Cul)ic Inches in a GaHoii 277.274 2:u . Weight of a Qallon ill iiDiiiids Gtillons in a (Mibic Foot 10.00 S. 83111 7.180.11'.) Weight of a cubic foot of water, iKnglish standard, ()2.;V21 lbs. Avoir- idupois. Weight of Crude Petroleum. O.Ub.s, pur U. S. Rallon I ,, , , , Weight of Refined " G,j lbs. per U, S. gallon , '^'^ ^'^"''"' '" ^^'^ ^'^'^'''^ A '• miner's inch " of water is appro.ximately cvpial to a supply of 12 U. S. galhms per minute Fire Streams Pressures reipiired at nozzle and at pump, with (piantity and pressure of water necessary to throw water various distances through ditierent sized no/zles— using 2,^ inch rubber hose and smojth nozzle SIZE OF NOZZMCS, I INCH. li INCH. X] INCH. l3 INCH. Pressure at Nozzle ' 40 'Pressure at Pump or Hydrant witli 100 ft 2h in. rubber hosj. . j 48 (10, 80 100 to tiO; 801100 40 7^1 117 121 r,l 81 10Sil3,")! (;i Gallons per minute .• IT,.-, IS'.I 21'.i 21.") I'.k; 2 10 277310 1212 Horizontal distance thrown 101) 142 ics isC) 113 1 l,s r/o 1<)3 ill.-* Vertical distance thrown | 7!» 108 131 148 81 1121137 1.57i I 82 ()0 80:100 40 00 80; 100 !)2 123!ir)4 71107 144 180 2!)7 342 383 •2!)3 3;18 Ia , 402 ir>() 18(;;207 124 lOO 200;224 11.5142;l()4; 8.5 118 14(5' 16!) * i-'or greater lengths of 2.§ hose the increased friciion can readilv be obtained by noting the differences between the above given '■ pressure at nozzle " and " pressure at pump or hydrant with 100 feet of hose." For instance, if it requires at hydrant or pump .^ lbs. more pressure than it do.-s at nr/.^zle to ov.ircime the friction when pumpiig through 100 fesi of 2.\ inch hose (using I inch nozzle with 40 lb. pressure at said nozzle), then it requires 16 lbs pressure to overcome the friction i.i forcing through 200 feet of same size hose. '" •'■■■' • •■■•■•■■I Ill nil I ■■■•■ Illlll ■••■Mill ■■■•■■■•■■■■■■I I , II ,„„ IIIIIIIIIII ■•Illlill ■■■■ ■■ 2\ k: i NORTHEY & CO. PUMPING MACHINERY tiiillllliiiiiiliiiiiiiiiiiiiiiiiiiiiitiiit tiiifiiiilllllllllllllllllltllllllllllllllllll'lllllllllllllllllllllllllllllllllllllllllll^lllillllllllllllllliltlllliillllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllltlllllltllliillltl' Mean Effective and Terminal Pressures POINTS OF CUT-OFF. '•S p 1 1 ■S a ••3 in C ^ i A M A \ •3 iK h-l « a- M.E.P. TER. M.E.P. TER. M.E.P. TER. M.E.P. TER. M.E.l'. TER. M.E.P. TER. U to 18.46 11.79 17.34 14.49 20.75 17.11 1 23.70 19.80 20 . 22 '22.44 0.50 27.78 40 15 10.15 12.87 20.39 15.81 24 . 13 18.07 27.32 21.01 30.08 •24.49 34.75 30.33 45 .-)0 18.85 13.94 23.45 17.13 '27.50 •20.24 30.94 '23.42 33.95 '2('..55 39.00 32.88 50 ")5 •21.54 15.00 2 -..50 18.45 30.87 21 . 80 34.50 25 25 37.81 '28.00 43. '25 35.43 55 t)0 •24.24 1().08 '29.50 19.77 34 . 24 23.37 38.18 '27.04 41.08 30.00 47.50 37.98 ()0 (■)5 2G.!)3 17.15 32.01 '21.09 37.01 24.94 1 41.80 '28.85 45.54 32.71 51.75 40.52 65 70 2!) . 03 18.23 35.07 '22.41 1 40.98 •20.51 45.42 30.00 49.41 34.77 50.00 43.07 70 75 H2 H2 19.31 ' 38.72 '23.73 i ' 44.35 •28.07 4il.05 32.47 53. '27 30.82 00. '25 45.01 75 SO H5.02 •20.39 1 41.78 '25.05 47.72 2!l.04 i 52.08 34. '28 57.14 38.88 04.50 48.1(i 80 S5 37.71 •21.40 , 44.83 '20.37 51.09 31. '20 50.31 30.09 01.00 40.93 08 , 75 50.70 85 uo 40.41 22.54 : 47.89 '27.07 , 54 . 4() 32.77 ' 59.94 37.90 04.87 42.!)9 73.00 ; 53. '2;: 90 115 43.10 '23.02 50.94 29.01 : 57.83 34.33 03.57 :;9.7i 08.73 45.04 ' 77.25 1 55 . 79 95 100 45.80 24.70 54.04 30 . 33 1 ()1.20 35.90 I 07.20 41.52 72.00 47.10 81.50 ' 58.34 100 The Initial and M. E. P. in above table are pressures above atmosphere and for non condensing engines .- the terminal pressures are " be^the diametlr in A- 7° ?!!? *^! quantity of water elevated in one minute running at 100 feet of piston speed per minute Square the diameter of the water cylinder in inches and multiply by 4. Example : Capacity of a 5 inch cylinde?is desired The square of the diameter (5 inches) is 25, which, multiplied by 4. gives 100. the number of gallons per minute (approximately) ^ *v, 1, ^u^^'^f ^^^ ^°,"f- ^■V'^^^ necessary to elevate water to a given height, multiply the total weight of the water in lbs bv he heigh m feet, and divide the product by 33,000 (an allowance of 25 per cent should be added for wateTfriction and a further allowance of 25 per cent, for loss in steam cylinder). mcuon, ana a Th. J^^Au^ °^*^^ •^?^"' P u*°r "?"'^*P''^d by the steam pre.ssure, gives the total amount of pressure that can be exerted. The area of the water piston multiplied by the press re of water per square inch, gives the resistance. A margin must be made between the power and tne resistance to move the pistons at the required speed-say from 20 to 40 per cent according to speed and other conditions, 1 i- j ^ j, v.cul., ci.i..i.-uiuiug *!, . 7^° ^"? the capacity of a cylinder in gallons. Multiplying the area in inches by the length of stroke in inches will give the otal number of cubic inches ; divide this amount by 231 (which is the cubical conieats of a U S gallon in inches) and product is the capacity in gallons. gcmuu uicuet,;, ana ■ iiiiiiiiiiiitfliiiiiiiiiiiiiiiiiiiiiiiiaiiiiiiiiiiiiiiaiiiiiiiiiittiifliiiiiiiiiiiiiiiiiiiiiiiiiiiii ■■■■■■■■■■■■•■■■« ............._ •■"""■'"""""""""""""-^^^^^ •■iiiiiipiiiaii ■■■iiiiiiiiiiiii ^1 oa 5 10 15 20 25 30 35 40 45 50 75 100 125 150 175 i^OO 250 300 350 400 450 500 7.50 itoo 1250 1500 1750 mm Sizes op Pipes -Inside Diameter. |in. lin. liin. IJin. 2 in. 2Jm. Sin. 4 in. bin. Sill. 10 in. 12in.| 14 in. 16 iu. 18111. 3.3 13.0 28.7 50.4 78.0 0.84 3.1(i (i.98 12.3 19.0 27.5 37.0 48.0 0.31 1.05 2.;w 4.07 0.40 9.15 12.4 16.1 20.2 21.9 56.1 0,12 0.47 0.97 1.66 2.02 3.75 5.05 0.52 8.15 10.0 22.4 39.0 0.12 0.42 0.21 0.10 i 0.91 FRICTION OF WATER i.6i) IN PIPES. 2.11 5.32 9.46 14.9 21.2 28.1 37.5 0.81 1.80 3.20 4.89 7.0 9.46 12.47 19.06 28.06 0.*") 0.74 1..31 1.99 2.85 3.a5 5.02 7.76 11.2 15.2 19.5 25.0 30.8 0.09 ., o.;« 0.05 Friction-loss in Pounds Pressure per 0.69 0.10 square inch, for each loo feet of 1.22 1.89 2.06 3.65 4.73 6.01 7.43 0.17 0.2H 0.37 0.50 0.65 0.81 0.96 2.21 3.88 length in different sizes clean 0.07 0.(i9 0.12 16 0.20 0.2.5 0.5;^ 0.94 1.46 2.09 0.03 0.04 0.05 0.06 0.07 0.09 0.18 0.32 0.49 0.70 0.95 1.2;! 0.01 iron pipes discharging 0.02 given quantities of 0.03 0.04 0.08 0,13 0.20 0.29 0.38 0.49 0.63 0.77 1.11 water per 0.017 0.0C9 o.oa5 minute. 0.0t)2 0.036 0,020 ! o.i;» 0.071 0.040 i 0.2;!4 0.123 0.071 2-m 0.362 0..515 0.697 0.910 0.18S 0.267 0.3(i5 0.472 0.,593 0.730 0.107 3000 mn 4(M)0 4500 5000 O.loO 0.204 0,263 o.im :::;:::;:i::;::;::; ::::..::: 1 1 0.408