Abstract: An electric motor-driven timer comprises a contact actuator having an arm which is rotatably fixed in the intermediate position thereof and is provided with an actuating portion at each end thereof for driving movable contacts. The actuator is provided with a cam follower which engages a cam surface member being integral with a driven-gear. The driven-gear is set in a predetermined position by a time setting means.

Abstract: A timing device is provided with a synchronous motor for rotating a driven gear containing a cam member through a predetermined angle corresponding to a selected time period, a clutch mechanism including an arm supporting a pair of gears on a common shaft for coupling the synchronous motor to the driven gear and further including a means for keeping a first gear of the pair in continuous engagement with the driven gear, a plurality of leaf switches for selectively energizing or de-energizing the synchronous motor, an actuator cooperating with the cam member for controlling the leaf switches, an electromagnetic device coupled to the clutch arm and actuator for controlling their movements to couple the synchronous motor to a second gear of the pair and to control the starting of the timing interval, and a means for initially providing an angular rotation to the driven gear to set the selected time period.

Abstract: A motor driven timing device is provided with a molded plastic frame having an electromagnet, a motor, a contact assembly, and a contact actuator attached thereto. The molded plastic frame is partially sandwiched between the electromagnet and a mounting base member to which the electromagnet is fixed.