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 94
clinedto the line of tangency so that the ends of all the sheets willmake contact. 306 HAWKINS ELECTRICITY In the Brush and Thomson-Houston arc dynamos, in which the cur-rent is limited to ten amperes, the brushes consist of a simple strip offlexible sheet copper, the ends of which are slit in a… … ADJUSTINGSCREW HARD ROLLED COPPER LEAVES Pig. 334.—Crocker-Wheeler brush holder. The carbon brush B is firmly clamped in thebox C by two screws which bear on a sheet of brass to protect the carbon from beingbroken by the ends of the screws. The box C is carried by four flexible springs SS.oneat…
Electrical engineering
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