Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 205
cost of the apparatusthe working expenses are practically nothing. Thus if the meaneffective pressure on the piston without a condenser is 30 lbs. per squareinch, and this mean pressure be increased by an additional 12 lbs.due to removal of back pressure by the condenser, we have a gainof 40 per… … COLO WATERFROM PUMP:^HCRTOWN MAINS OPEN AIRCONDENSER ;rONOENStO STEASi^
Steam-engines
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