Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 538
Fig. 320. Fig. 32L carbon rods and carbons are inclosed in a globe and hood, andthe parts through which the current passes are insulated. Themechanism for controlling the arc is placed at the bottom of thelamp, which facilitates the construction of side wall fixtures.The carbon rod is held by a…
Electrical engineering
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