Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 170
597. DOUBLE-BEAT PUMP VALVE, Cor-I nish model. The upper seat is supported by aI cross-bar, in which is fixed the guide-pin thatI carries the valve. … 598. DOUBLE-BEAT PUMP VALVE or relief valve.— The valve spindle ma} beloaded by weight or spring. v^Vnj^^VSKvV-^-; i6o HYDRAULIC POWER AND DEVICES.
Mechanical movements
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