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 56
cket I, and to admit the light during theintervals that I remains stationary. The synchronous operationof the intermittent sprocket and the shutter is very clearlyshown in the diagram. A lower steady feed sprocket M, whichoperates at the same speed as the upper sprocket E, maintainsa lower feed… … ii 1
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
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