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  2. Clock - Wikipedia

    en.wikipedia.org/wiki/Clock

    A cuckoo clock with mechanical automaton and sound producer striking on the eighth hour on the analog dial. This displays the count of seconds, minutes, hours, etc. in a human readable form. The earliest mechanical clocks in the 13th century did not have a visual indicator and signalled the time audibly by striking bells.

  3. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The tower clock of Norwich Cathedral constructed c. 1273 (reference to a payment for a mechanical clock dated to this year) is the earliest such large clock known. The clock has not survived. [ 95 ] The first clock known to strike regularly on the hour, a clock with a verge and foliot mechanism, is recorded in Milan in 1336. [ 96 ]

  4. Time clock - Wikipedia

    en.wikipedia.org/wiki/Time_clock

    A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card

  5. Verge escapement - Wikipedia

    en.wikipedia.org/wiki/Verge_escapement

    For the first two hundred years or so of the mechanical clock's existence, the verge, with foliot or balance wheel, was the only escapement used in mechanical clocks. In the sixteenth century alternative escapements started to appear, but the verge remained the most used escapement for 350 years until mid-17th century advances in mechanics ...

  6. Pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Pendulum_clock

    The mechanism which runs a mechanical clock is called the movement. The movements of all mechanical pendulum clocks have these five parts: [27] A power source; either a weight on a cord or chain that turns a pulley or sprocket, or a mainspring. A gear train (wheel train) that steps up the speed of the power so that the pendulum can use it.

  7. Movement (clockwork) - Wikipedia

    en.wikipedia.org/wiki/Movement_(clockwork)

    A mechanical movement contains all the moving parts of a watch or clock except the hands, and in the case of pendulum clocks, the pendulum and driving weights. The movement is made of the following components: [2] Power source Either a mainspring, or a weight suspended from a cord wrapped around a pulley.

  8. Japanese clock - Wikipedia

    en.wikipedia.org/wiki/Japanese_clock

    Two separate foliot balances allow this 18th-century Japanese clock to run at two different speeds to indicate unequal hours.. A Japanese clock (和時計, wadokei) is a mechanical clock that has been made to tell traditional Japanese time, a system in which daytime and nighttime are always divided into six periods whose lengths consequently change with the season.

  9. Turret clock - Wikipedia

    en.wikipedia.org/wiki/Turret_clock

    A turret clock or tower clock is a clock designed to be mounted high in the wall of a building, usually in a clock tower, in public buildings such as churches, university buildings, and town halls. As a public amenity to enable the community to tell the time, it has a large face visible from far away, and often a striking mechanism which rings ...

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