Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 488
Fig. 282. connecting by means of screws, one on each side. Fig. 283shows one of these holders mounted on a hand stand and sapporting an incandescent lamp. Fig. 284 shows a more orna-mental form of holder, in which the bent wire springs are re-placed by sheet brass springs, forming part of the…
Electrical engineering
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