Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 623
original valveswere of metal, double-beat, and the introductionof the present form has greatly increased thepumping efficiency. The Corliss Pumping Engine.—A pumping engine on the Corliss system was constructed at Paw-tucket, R. I., in 1878. It has two steam-cylinders, the pump piston-rods being…
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