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 343
g.j CARBON REL LEASE Figs. 3,343 to 3,345.—Various forms of clutch for feeding the carbon to compensate for itsconsumption. Fig. 3,343, ball clutch; fig. 3,344, cam clutch; fig. 3,345, ring clutch. … Figs. 3,346 and 3,347.—Carbon and rod feed. In the first instance the clutch operates thecarbon direct, as in fig, 3,346. Sometimes the carbon is secured by a clamp at the endof a rod, the clutch operating the carbon through contact with the rod as in fig. 3,347. ELECTRIC LIGHTING 2,435 Dash Pots…
Electrical engineering
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