Nikola Tesla - Free-Energy Devices

POLYPHASE CURRENT*. 33thereon, take oft' the alternating currents that operate the motor.It is preferable in this case to employ a motor or transformerwith three energizing coils, A" B" c", placed symmetrically withthose of the generator, and the circuits from the latter are connectedto the terminals of such coils either directly as whenthey are stationary or by means of brushes e' and contact ringse. In this, as in the other cases, the ordinary commutator maybe used on the generator, and the current taken from itutilizedfor exciting the generator iielcl-magnets or for other purposes.