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  2. Grandfather clock - Wikipedia

    en.wikipedia.org/wiki/Grandfather_clock

    A grandfather clock (also a longcase clock, tall-case clock, grandfather's clock, hall clock or floor clock) is a tall, freestanding, weight-driven pendulum clock, with the pendulum held inside the tower or waist of the case. Clocks of this style are commonly 1.8–2.4 metres (6–8 feet) tall with an enclosed pendulum and weights, suspended by ...

  3. Conservation and restoration of clocks - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Winding had to be done at certain times of the day; ideally when the temperature was just right and the room vacant. Each clock had its own unique keys, doors, and intricacies within the mechanisms." [9] Regular winding can also ensure that clockwork is still functioning. In setting the correct time, the minute hand is turned clockwise to the ...

  4. 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.

  5. Torsion pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Torsion_pendulum_clock

    Torsion clocks are unusually delicate, ornamental machines which require stable conditions to operate properly. The clocks are protected from the vagaries of air currents by a glass dome. Clocks of this style were first made by Anton Harder around 1880, [ 1 ] and they are also known as 400-day or anniversary clocks because many can run for an ...

  6. List of United States clock companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    The following is a list of American companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Samuel Abbott; Montpelier, Vermont (1830–1861) Ansonia Clock Company; Ansonia, Connecticut and Brooklyn, New York (1851–1929)

  7. Fusee (horology) - Wikipedia

    en.wikipedia.org/wiki/Fusee_(horology)

    It is usually a planetary gear mechanism (epicyclic gearing) in the base of the fusee "cone" which then provides turning power in the opposite direction to the 'winding up' direction therefore keeping the watch or clock running during winding. Most fusee clocks and watches include a 'winding stop' mechanism to prevent the mainspring and fusee ...

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