Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 341
,432 HAWKINS ELECTRICITY Ques. What effect have differential lamps on dynamooperation. Ans. They increase the apparent resistance of the arc asthe current rises, and correspondingly assist the dynamo in main-taining the current constant. For a given variation in current, however, they show a… … FlG. 3,340.—Adams-Bagnall clutch as used on series arc lamp. The clutch proper is of por-celain, and is placed loosely in a steel container, which is connected to the walking beamby means of an adjustable hook of substantial design. To prevent the carbon jarringthrough the clutch, the dash pot…
Electrical engineering
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