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 266
demagnetizing winding, ELECTRIC BELLS 2,357 In order to get the desired effect, a contact maker is usedinstead of a contact breaker, it operates to control the currentin the demagnetizing winding only. Ques. How are the various parts arranged ? Ans. The essential elements are shown in fig. 3,222,… … ELECTRO-MAGNETCOREWINDING CONTACT BREAKER TERMINALS ADJUSTMENT Pig. 3,221.—Sectional view of a buzzer. In construction, the armature is pivoted to thelower part of an upright soft iron shield or standard from the top of which the magnetis firmly suspended. The armature being pivoted to the shield,…
Electrical engineering
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