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  2. Remontoire - Wikipedia

    en.wikipedia.org/wiki/Remontoire

    Before the common use of electronic clocks in automobiles, automobile clocks had mechanical movements, powered by an electric remontoire. A low power drive spring would be wound every few minutes by a plunger in a solenoid, powered by the vehicle's service battery and activated by a switch when the spring tension got too low. Such clocks were ...

  3. Riefler escapement - Wikipedia

    en.wikipedia.org/wiki/Riefler_escapement

    An escapement is the mechanism in a mechanical clock that gives the pendulum precise impulses to keep it swinging, and allows the gear train to advance a set amount with each pendulum swing, moving the clock hands forward at a steady rate. The Riefler escapement was an improvement of the deadbeat escapement, the previous standard for precision ...

  4. Escapement - Wikipedia

    en.wikipedia.org/wiki/Escapement

    Animation of anchor escapement, widely used in pendulum clocks. An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands.

  5. Anchor escapement - Wikipedia

    en.wikipedia.org/wiki/Anchor_escapement

    In horology, the anchor escapement is a type of escapement used in pendulum clocks. The escapement is a mechanism in a mechanical clock that maintains the swing of the pendulum by giving it a small push each swing, and allows the clock's wheels to advance a fixed amount with each swing, moving the clock's hands forward. The anchor escapement ...

  6. Clockwork - Wikipedia

    en.wikipedia.org/wiki/Clockwork

    Keys of various sizes for winding up mainsprings on clocks Mechanism of a Wall Clock, Ansonia Co. 1904. The stored amounts of energy used by a given piece during its operation is often housed within it; this frequently happens via a winding device that applies mechanical stress to an energy-storage mechanism such as a mainspring, thus involving some form of escapement.

  7. Grasshopper escapement - Wikipedia

    en.wikipedia.org/wiki/Grasshopper_escapement

    Grasshopper escapement, 1820. The grasshopper escapement is a low-friction escapement for pendulum clocks invented by British clockmaker John Harrison around 1722. An escapement, part of every mechanical clock, is the mechanism that gives the clock's pendulum periodic pushes to keep it swinging, and each swing releases the clock's gears to move forward by a fixed amount, thus moving the hands ...

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