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 460
440 INVENTIONS OF NIKOLA TESLA . rent will flow over tlie auxiliary brush in an opposite direction , and the current in m will be strengthened , and in m ' partly neu tralized . By combining with the brushes a , h , and o any usual automatic regulating mechanism , the current developed can be… … Fig . 254 . and m ' of the field wire may be wound in the same direction . In this case they are arranged as shown in Fig . 253 ; or the part m may be wound in the opposite direction , as shown in Figs . 254 and 255 . It will be apparent that the respective cores of the field - mag nets are…
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