Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 495
n fact lamps embodying this principle were in actualpractical operation in Westons factory as early as September orOctober, 1877. Another method of regulation was tried in 1878, which con-sisted simply of a permanent shunt around the arc, in whichshunt a resistance was inserted. This was tried in… … Fig. 286. THE WESTON ARC LAMP. 475 portion of the total energy was actually wasted, so far as its il-luminating effects were concerned, and hence the results were farfrom economical. The next improvement made by Mr. Weston was during theyear 1879, and consisted of an organization in which an…
Electrical engineering
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