Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 510
Fig. 295. the casing above, so that no portion whatever of the lampwhich is in electrical connection with tlie circuit is exposed oraccessible. This form of frame is employed either for duplexor for single lamps, the same as the form shown in figure 289, THE WESTON ARC LAMP. 489 … Fig. 296. 490 THE ELECTRIC LIGHT. and the same feeding mechanism may be used. Figure 296shows the manner in which the inner frame is lowered for thepurpose of replacing the carbon.
Electrical engineering
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