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 366
KINS ELECTRICITY pump is usually placed in the basement, the discharge pipe passingup through the building to the open tank in the attic, where it is gen-erally located. In the tank is placed a float which follows the waterlevel, and a chain from the float passes over pulleys through the auto-matic… … Fig. 4,329.—Automatic control for electric house pump, consisting of float switch, starter, amdconnection, as shown. the motor will start and stop. The figure shows the starting rheostat,fuse block, main switch, and wiring. In place of a tank float, control may be effected by means ofthe varying…
Electrical engineering
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