Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 163
heclosure of the inlet valve, due to the differentialarea of the piston valves. When water is beingdrawn, the valve opens wide by the relief frompressure at the upper piston valve. 152 HYDRAULIC POWER AND DEVICES. 562. MASON WATER PRESSURE REG*ULATOR.— Over-pressure on the low-pressureside… … 563. PUMP WATER PRESSUREREGULATING VALVE.—A balancedpiston valve, with a differential balance byspring or lever and weight, is placed onthe steam pipe to a pump. The openingbeneath the lower piston is connected tothe water discharge pipe of the pump.Over-pressure raises the disc and shuts offsteam.…
Mechanical movements
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