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Self-propelled vehicles; a practical treatise on the theory, construction, operation, care and management of all forms of automobiles (1906)

Homans, James E. (James Edward), b. 1865 · New York, T. Audel & Company · leaf 308

An illustration from Self-propelled vehicles; a practical treatise on the theory, construction, operation, care and management of all forms of automobiles, 1906, leaf 308 — rent to travel across the gap without sparking, thus destroyingthe efficiency of the plug until cleansed. Furthermore, if the in-sulating substance is cracked or soaked in oil, the short circuitoccurs at some point short of the spark gap, involving that theplug must be replaced. Although, as… … Fig. 219.—Double Spark Plug used on the Cadillac Carriage. Unlike otherplugs, the secondary circuit is carried by visible leads, and is notgrounded at any point. Superior sparking qualities are claimed, and,as seems evident, fouling is a more remote danger. Spark Plug Insulation.—The substances…

Automobiles

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