Motive Powers and Their Practical SelectionLongmans, Green, and Company, 1895 - 257 páginas |
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Página 11
... ordinary coal per min- ute , in an ordinary boiler and en- gine . By d of a lb. of wood per minute , in a special boiler and ordinary engine . By 1⁄2 of a lb. of straw per minute , in a special boiler and ordinary engine . By explosions ...
... ordinary coal per min- ute , in an ordinary boiler and en- gine . By d of a lb. of wood per minute , in a special boiler and ordinary engine . By 1⁄2 of a lb. of straw per minute , in a special boiler and ordinary engine . By explosions ...
Página 43
... ordinary 2 - inch rubber - lined hose and smooth nozzles . COMPUTED BY J. R. FREEMAN . Size of Nozzle , inch . Pressure at Nozzle , lbs . per sq . in . 40 50 60 70 80 90 90 100 Imperial Gallons per Minute .. Distance thrown Horizontal ...
... ordinary 2 - inch rubber - lined hose and smooth nozzles . COMPUTED BY J. R. FREEMAN . Size of Nozzle , inch . Pressure at Nozzle , lbs . per sq . in . 40 50 60 70 80 90 90 100 Imperial Gallons per Minute .. Distance thrown Horizontal ...
Página 44
... ordinary orifice , not like a fire - jet or what is technically known as a " vena - contracta , " but such as a mill - gate or shuttle , under a direct head of water immediately above it . The following amounts are 64 per cent . of the ...
... ordinary orifice , not like a fire - jet or what is technically known as a " vena - contracta , " but such as a mill - gate or shuttle , under a direct head of water immediately above it . The following amounts are 64 per cent . of the ...
Página 68
... ordinary undershot water - wheels , having straight paddles or floats , is very low , and Poncelet's improved construction should always be adopted . In this the floats are constructed on a curve bearing a relation to the angle of ...
... ordinary undershot water - wheels , having straight paddles or floats , is very low , and Poncelet's improved construction should always be adopted . In this the floats are constructed on a curve bearing a relation to the angle of ...
Página 70
... 21⁄2 1,500 66 100 Two 2 " 2,000 66 66 50 66 6 ' 6 " 66 £ 70 = $ 350 Undershot . 7 ' 6 " 3 feet . £ 80 = $ 400 Two 3 " 3,000 Two 3 " 3,000 66 180 " 66 50 " COST OF ORDINARY MILL WATER - WHEELS . Description . 70 MOTIVE POWERS .
... 21⁄2 1,500 66 100 Two 2 " 2,000 66 66 50 66 6 ' 6 " 66 £ 70 = $ 350 Undershot . 7 ' 6 " 3 feet . £ 80 = $ 400 Two 3 " 3,000 Two 3 " 3,000 66 180 " 66 50 " COST OF ORDINARY MILL WATER - WHEELS . Description . 70 MOTIVE POWERS .
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adopted amount ampères apparatus arranged average B.Sc calculation cast-iron cent CHAPTER Chemistry chimney coal compound engine condensation cost crank Crown 8vo cubic feet cubic foot cylinder cylinder engine Diagrams Diam driving dynamo economy effective horse-power electric Elementary fall feed-water feet per minute flues ft.-lbs fuel furnace gas-engine gine given grate area Heads in Feet heating surface HORIZONTAL ENGINES horses Illustrations imperial gallons inch diameter indicated horse-power iron LL.D machine machinery mill motive power motor nominal horse-power oil-engine ordinary oxen Pelton Wheel pipe piston plates portable portable engines pounds practical proportions published by Longmans pump purpose Revolutions per Minute Scientific Works published shaft single-cylinder speed square feet square inch steam-engine Strength of Materials Stroke supply thickness tions tubes turbine valve vaporizer vary velocity vertical engine volts water-wheels Watts weight wheel wind wood Woodcuts ΙΟ
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