Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 120
of corrugated pure lead ribbon. The but-tons are forced into the openings of thegrid by hydraulic pressure, which se-curely locks them in position. Duringthe forming process of the Plante plate,the buttons expand, resulting in excel-lent electrical contact. The box negative plates. Fig. 136, ofthe… … w» PRIMARY AND STORAGE BATTERIES
Electricity · Electrical engineering
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