Project Gutenberg #39272
The Inventions, Researches and Writings of Nikola Tesla
Thomas Commerford Martin
1894Martin's illustrated record of Tesla's pioneering electrical work, prepared section by section from Project Gutenberg HTML.
Project Gutenberg #39272 Public domain in the United States Cover source Local typographic cover created for MojiMori from public-domain source metadata
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Mr. Tesla believes he is the first to operate electro-magnetic motors by alternating currents in any of the ways herein described—that is to say, by producing a progressive movement or rotation of their poles or points of greatest magnetic attraction by the alternating currents until they have reached a given speed, and then by the same currents producing a simple alternation of their poles, or, in other words, by a change in the order or character of the circuit connections to convert a motor operating on one principle to one operating on another.
[Pg 56]