Timing device
    9.
    发明授权

    公开(公告)号:US3555214A

    公开(公告)日:1971-01-12

    申请号:US3555214D

    申请日:1969-03-07

    Applicant: GEN ELECTRIC

    CPC classification number: G04C23/36 Y10T74/115

    Abstract: A timing device for performing a switching function at dusk and at a specific time during the night. A synchronous motor drives a time dial at a first speed during the daylight hours and a double that speed after dusk through a power train including a lever arm driven by an eccentric to engage the teeth of a ratchet gear to rotate a cam assembly which actuates movable contacts through which the motor and a load controlled by the timing device are energized. Projections carried by the time dial engage cam portions formed on a star wheel to rotate the star wheel and the cam assembly to actuate the movable contacts to deenergize the load and the motor.

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