Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 107
now made lasting only one and ahalf hours. Fig. 46 is an enlarged sectional view, showing thecandles and devices for holding them in position. These aremounted upon a circular base of white onyx. A, which serves notonly to support the parts, but to insulate them from each other.The four candles are… … Fig. 45. JABLOCHKOFF S CANDLE. 93
Electrical engineering
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