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 265
TRIP LEVER … CONTACT Figs. 3,218 to 3,220.—Detail of electro-mechanical circuit maintainer, showing progressivelyits action. Fig. 3,218 shows the mechanism in its initial or set position. When themagnet is energized, the trip lever claw is pushed out of engagement with the circuitmaintainer lever and the…
Electrical engineering
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