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 124
al with the one just described with the 2,778 HAWKINS ELECTRICITY exception that in place of the make or break timing device, amechanical vibrator is used which gives a succession of sparkfor firing each charge. As the rotor of the timer revolves, it touches each of the stationarycontact and in so… … Fig. 3,996.—Wiring diagram of a dual jump spark system for a four cylinder, four cycle engine.A dry battery and low tension magneto form the two sources of current supply. Theprimary, or low tension circuit is shown by heavy lines, the secondary or high tensioncircuit by fine lines, and the leads…
Electrical engineering
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