The U.S. Patents of Nikola Tesla

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Freely available at the U.S. Patent and Trademark Office

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W itn esses: Edward Evans, E. What claim is— 1. This system capable various useful ap­ plications which not necessary describe in detail; but will enough say that the io convertibility the system from double cir­ cuit single circuit feature itself of great value and utility. .9 wires II. The method operating synchronizing m otors erein escrib ich sists in electrica lly ectin term 20 th eing-circu . The motor then runs synchronizing motor. When this arrangement of circuits the motor brought speed, the ground-connection broken between tire gen­ erator motor both and ground, switches 5 being employed for this purpose. N . Upstjll. 2 eth erein escrib sta rtin 25 or eratin izin otore, ich con ­ sists electrica lly ectin term te p ciu -circu gen erator an erg izin -circu otor to earth til otor reach esired 30 sp eed terru tin eith of th grou -con ection sot forth. I not wish understood confining myself the precise arrangement order of iS connections herein set forth, these maybe obviously varied many respects.it gen erator e en ergizin g-circu otor til otor h reach esired eed r­ ru tin con ection forth