A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 417
Fig. 436. Voltaic Pile. thinner. The discs of moistened cloth are shownat d d. One end of such a pile would then beterminated by a plate of copper, and the otherby a plate of zinc. The copper end forms thepositive electrode, and the zinc end the negativeelectrode. (See Cell, Voltaic ) Pilot… … 437. InsulatorPin. Pin, Insulator — of which an insulator is attached to the tele-graphic support or arm. The insulator pins or bolts are generally fixed to>the insulator by means ofscrew threads turned ontheir ends. They are thencemented to the insulators byany suitable moisture-proofcement.…
Electricity · Electrical engineering
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