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 541
Fig. 4,624.—Scheidel-Western anti-acid interrupter. In this type of interrupter an alkalinesolution is used. By using an aluminum plate in place of the lead plate, it acts as the alter-nating current both as a rectifier and an interrupter. a wall plate to put in some device to change the…
Electrical engineering
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