The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 479
Ring Contact. A contact formed by a terminal clip in theshape of a ring, split or cut at one point so that its ends tend tospring together. The other terminal is a bar which passes into thecut and is tightly pressed by the elastic ring. Ring, Faraday. A closed ring of iron used as the core of… … Fig. 298. Switch with Ring Contacts. Roaring, A term applied to the noise sometimes produced in avoltaic arc, when the electrodes are close together and a heavycurrent is passing. Rocker. In a dynamo the movable piece, mounted concentric-ally with the commutator, and carrying the rocker-arms and…
Electricity
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