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  2. Intermatic - Wikipedia

    en.wikipedia.org/wiki/Intermatic

    Intermatic Incorporated is an American manufacturer of time switches headquartered in Spring Grove, Illinois. Intermatic was founded in 1891 in Chicago, Illinois as the International Register Company to produce fare registers .

  3. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    The timer may switch equipment on, off, or both, at a preset time or times, after a preset interval, or cyclically. A countdown time switch switches power, usually off, after a preset time. A cyclical timer switches equipment both on and off at preset times over a period, then repeats the cycle; the period is usually 24 hours or 7 days.

  4. Mainspring - Wikipedia

    en.wikipedia.org/wiki/Mainspring

    In many clocks, the outer end is attached to a stationary post. The spring is wound up by turning the arbor, and after winding its force turns the arbor the other way to run the clock. The disadvantage of this open spring arrangement is that while the mainspring is being wound, its drive force is removed from the clock movement, so the clock ...

  5. Clockwork - Wikipedia

    en.wikipedia.org/wiki/Clockwork

    The earliest known example of a clockwork set-up is the Antikythera mechanism.This device functioned as a geared analogue computer after its creation during the first-century BCE timeframe, being somewhat astrolabe-like, and had been designed for calculating astronomical positions and particularly listing eclipses.

  6. Clockspring - Wikipedia

    en.wikipedia.org/wiki/Clockspring

    Steering column. The clockspring is the small black drum with yellow wires at the front end. In vehicle steering systems a clock spring or clockspring is a spiral-wound special rotary electrical conductor which allows a vehicle's steering wheel to turn while still making an electrical connection between the steering wheel airbag and/or the vehicle's horn and other devices and the vehicle's ...

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