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 123
l not ™k>™\£?distance between the points adjusted to about onf^ C6nt ^PieCe* If ^ ^^ ^ the gap may be made smaller. GAS ENGINE IGNITION 2,777 Ignition with Plain Coils.—The first high tension systemto attain popularity was the single spark system using a plaincoil and contact maker. This being… … CONTACT MAKER CAM 3,995.—Diagram illustrating the principles of high tension or jump spark ignition. Thenose of the cam in revolving engages the contact maker which completes the primary-circuit and allows current to flow from the battery through the primary winding of thecoil; this magnetizes the…
Electrical engineering
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