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- · New York, T. Audel · leaf 111
Cb and Sa; Ua. secondary toggle link (right hand); Va. washer for Wa; Wa. pin for Cb,Qa, Ca and X; Xa, pin for Sa and Cv; Ya, spring cotter for all pins, except Wa, catch leverpin and buffer; Za, secondary contact link; Ab, washer for Fb; Bb, guard for Fb; Cb.handle lever; Db, catch for Cb; Eb,… … SPRING
Electrical engineering
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