Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 30
cted with the balanced steam-valve and the steam isautomatically throttled, so that only enough steam is admitted to keep the engine turningaround, or to overcouie the friction, no work being done. When the compressor is un-loaded, it is evident that the function of the air-piston is merely to… … Fio. 6.—Sergeant compressor.
Mechanical engineering
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