Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 459
e feed mechanism, or injuring the insula- 438 THE ELECTRIC LIGHT. tion. The direction which the current takes in passing throTighthis lamp is similar to that described in fig. 257. Referring tofigs. 261 and 262, it will be seen that the base of this lampis so constructed as to provide an adjustment… … Fig. 267. being turned to the left to raise, and to the right to lower thelamp. This tube/ slides into a tube ^, and is held in positionby the screw Z, which fits into a slot in the tube/. The nut i isheld in its position by a screw not shown, the end of which fits-into a groove around the tube h^…
Electrical engineering
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