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 383
y either by feeding the car-bons at different rates of speed, or by the use of suitably proportioned carbons, thepositive being cored and given a larger diameter than the negative. 2,474 HAWKINS ELECTRICITY full illuminating power of the lamp, has greater penetrating qual-ities, and is the most… … Fig. 3,402.—Marine search light for pilot house; view showing the feeding mechanism inposition within the cylinder of the projector. It will be noted that the positive carbon islocated in front of the negative carbon, and therefore, all the light emitted from the crateris thrown on the reflecting…
Electrical engineering
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