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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 159

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 159
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. … 564. HYDRAULIC PRESS, with screwadjustment of upper platen. The closingdown of the upper platen is quickly done bythe screw, when a small movement of the hy-draulic piston is required for the pressure.

Mechanical movements

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