Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 323
ELECTRIC PUMPS 2,977 pump which distinguishes it from a lift pump is that the cylinderis always closed, whereas in a lift pump it is alternately closedand open when the piston is respectively at the upper andlower ends of its stroke. As shown in figs. 4,254 to 4,256, the cylinder top is closed by a… … PLUNGER zpS=«S5S^ Hum DISCHARGEVALVE \. CLOSED
Electrical engineering
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