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 130
e cylin-ders. These single-break coil systems embody, in their most highlydeveloped forms, a single plain coil, a secondary timing device for theinduced high tension current and a timer or circuit breaker which causesa sharp break in the circuit of the primary coil winding each time anignition…
Electrical engineering
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