Abstract: An electric motor housing having a peripheral frame member, a central motor mounting member and strut members connecting and supporting the frame member and motor mounting member. The peripheral frame member defines a receptacle having an open mouth for receiving a terminal block assembly in a sliding manner. The receptacle also defines a lateral aperture for access to the terminal block. At least one of the strut members defines a longitudinal channel communicating at one end with the open mouth and at its other end with means for access to an electric motor when mounted on the motor housing.

Abstract: A DC brushless motor is provided in which the stator has a central annular portion defining a central aperture, a plurality of winding core members which extend radially from the central annular portion and a plurality of intermediate core members which extend radially from the central annular portion and are positioned intermediate the winding core portions. A single stator winding extends around the winding core portions. The coils of the winding on adjacent winding core portions are wound in opposite directions electrically. A control circuit is provided for simultaneously exciting all of the winding coil portions and for electrically reversing the exciting current as a function of the rotational position of the rotor.A Hall sensor is positioned intermediate a winding core portion and an intermediate core portion and is connected to the control circuit for detecting the rotational position of the rotor with respect to the stator.

Abstract: A unit bearing electric motor is disclosed which includes a rotor assembly having a one-piece rotor housing. The rotor assembly includes a retainer which is positioned within the rotor housing and is adapted to cooperate with a portion of the cantilevered rotor shaft of the motor having a reduced cross-section. Significantly, the arrangement of the rotor assembly permits its prefabrication so that the finished rotor assembly may be readily mounted on the rotor shaft by merely advancing the rotor assembly along the shaft so that the shaft is telescopically received therein and so that the retainer of the rotor assembly is moved into cooperation with the reduced section of the rotor shaft for securely maintaining the rotor assembly in its proper position on a shaft.

Abstract: A method and apparatus for making split lock washers consists of an automated machine wherein the diameter and gap of a lock washer can be accurately controlled. The apparatus includes a drive mechanism for driving the cutter and a transmission unit driven by the drive mechanism which can be adjusted to correlate the feed speed of the wire with the cutter to produce washers of different diameters. After the correlation speed has been set the production speed can be increased or decreased and the synchronized relation of the feed and cutter speeds will remain the same.