The inventions, researches and writings of Nikola Tesla : with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas C, Tesla, Nikola · The Electrical Engineer · leaf 454
eak and of the short circuit will be reduced to a minimum . The first results in a reduction which amounts practically to a suppression of the spark , since the break and the short circuit produce opposite effects in the armature - coil . The second has the effect of diminishing the destructive… … Fig . 246 . Fig . 247 . The mechanical advantages will be better understood by re ferring to the accompanying diagrams , in which Fig . 246 is a central longitudinal section of the end of a shaft with the im proved commutator carried thereon . Fig . 247 is a view of the inner or bearing face of the…
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