The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 460
ener. In Fig. i^.M instead of a solenoid, an iron tube inclosing <i coilis sliown. The piston of the coil is attached t<» both brush-holders A A and c. When the l)rushes are muvi*<l directly byelectrical devices, as shown in Figs. 25H and 2.>7, these are soconstructed that the force… … Fio. 256. lichees receive thi- entire current through the auxibary l)nish orbrushes, and these brushes eouhl not be taken otV without lireak-ingthe <Mrcllil through the ticM. Ihoe brushe> cjiu^e, move-over, heavy sparking at the coininntator. In the present<use the anxibarv lirnsh causes…
Electric currents, Alternating · Electrical engineering
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