Clock

Clock

Any instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.

Industry: Chronometry

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Clock

Tooth

Chronometry; Clock

The shaped projections on a gear wheel which intermesh and transmit power are termed 'teeth'.

A clock striking the quarters on two differently pitched bells or gongs, the sound for the first quarter being similar to the name, with each successive quarter indicated by an additional ting-tang. ...

Timetrain

Chronometry; Clock

The series of gears in the clock movement that operates the minute and hour hands (and second hand where applicable). The timetrain is responsible for activating the chime in the movement.

Time-switch clock

Chronometry; Clock

Originally developed for switching shop-window display or street lighting on an automatic program. Similar clocks had earlier been used for controlling gas lamps by turning a gas cock instead of ...

Timepiece

Chronometry; Clock

A clock that tells time only and does not strike or chime.

Time-annunciation

Chronometry; Clock

For the best results of time measurements to be useful they had formerly to be announced by voice or other audible or visible signal. Parallel with the development of automatic time-measuring ...

Time measuring mechanisms

Chronometry; Clock

All time measurements, whether by differential or integrative methods, originally required the attention of a watchman. The need for such attention only ceased when, besides automatic means of ...