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 365
FlGS. 4,327 and 4,328.—Deming single pole float switch, and diaphragm pressure regulator.Fig. 4,327, switch; fig. 4,328, regulator. The switch is of the single pole sliding contacttype for use with self-starting for automatically starting and stopping the pump motorwith open tank systems. This…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
