Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 444
££-£LJL9.Jta. Plan. … ^A^^^^^^^m Ladds Dynamo-electric Machine—elevation. wound with wire as above described, serving thus to keep them asunder,and the whole are firmly bolted together. The wires of one of the arm-atures are connected with a commutator, designed to give a commondirection to the currents of electricity…
Machinery · Scientific apparatus and instruments
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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