Abstract: A control unit, adapted to control a reversible, variable-speed electrical motor includes a control lever protruding through a U-shaped slot in a housing. Movement of the lever from one side to the other of the U-shaped slot controls the direction of rotation of the motor, and its position along a side of a slot determines the speed of rotation. The control lever is mounted to a pivotally mounted support member, which carries a linear potentiometer operated by the control lever, and includes a protruding portion which carries a toggle switch. The handle of the toggle switch is substantially restrained from motion, so that the switch is actuated to reverse the motor when the control lever is moved from one side of the U-shaped slot to the other.

Abstract: A dynamoelectric machine includes a two-part brush holding structure, allowing the part not exposed to high heat to be made from an inexpensive material. The two parts are assembled as a friction fit, and includes insulation-displacing connectors for terminating internal wiring and simultaneously providing external connections, some of the connectors protruding through the end bell. A boot member, which may be interchanged, and which sealingly passes a cable, is used to render the machine waterproof.