Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 374
be lighted automatically, and the twoopposite actions required for the separation and approachof the carbons are determined by the weight of the uppercarbon holder and by the electro-magnetic vibration of a rock-ing lever which acts on a clockwork mechanism driven in theopposite direction by the… … Fig. 206. 354 THE ELECTRIC LIGHT. ing electro-magnet acts. This last is formed of a bent lever L,jointed at Y, and carrying at M the armature of the electro-magnet E. This is the principal organ of the apparatus, for onone side it carries a contact piece which forms with the stud Xthe vibrating…
Electrical engineering
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