Abstract: In an electrical generator of the type wherein coils are driven through the magnetic fields of magnets, or vice versa depending on which are mounted on the rotor and which on the stator, the coils are attracted to the magnets and this attractive force requires a significant proportion of the torque which must be exerted on the rotor to drive it by an outside power source. The proportion of torque attributable to the attractive force of the magnets on the coils are reduced in accordance with the invention by the provision of sets of magnets one of each set being driven with the rotor and the other being fixed to the stator, the magnets being arranged with the same polarity so that they repel each other and exert a force on the rotor opposite to that exerted by the attractive forces of the first magnets on the coils, whereby the torque required to drive the rotor is reduced.

Abstract: The disclosure is of a machine for producing the rotary motion of a shaft by causing two permanent magnets carried by the shaft to pass in close proximity to the poles of an electromagnetic coil as the shaft is rotated, with poles of the same polarity of the permanent magnets and the coil adjacent, and energizing the coil during passage of the permanent magnets past the poles of the coil while maintaining the coil otherwise de-energized.