Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 305
r in form, the neck being quite long. The carbon filament ismade from cotton thread, parchmentized before carbonization bytreatment with strong sulphuric acid. The ends of this filamentare very much thickened, and the loop has a double turn at thetop. Its ends are clamped in a pair of metal… … REPORT ON INCANDESCENT LAMPS. 285 C. The Maxim Lamp.—The Maxim lamp (figure 155) is alsoglobular in form, but it has a short neck. Within the neckrises a hollow cylinder of glass, supporting upon its summit acolumn of blue enamel, through which pass the conducting wiresof platinum which carry the…
Electrical engineering
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