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

analog

Chronometry; Clock

Traditional look of time told by the angular positioning of hands on a dial.

A process of heat treatment for reducing the degree of hardness of metal to give it maximum malleability or ductility. The purpose of annealing is to remove the effects of previous hardening, thus ...

anniversary clock

Chronometry; Clock

The name comes from the fact that when it was first invented, it needed winding just once a year on its anniversary (approximately 400 days). Characterized by a glass dome and a rotating pendulum. ...

anti-friction roller

Chronometry; Clock

A type of bearing in which two or more rollers are used to carry a pivot. Anti-friction rollers used in clocks take the form of pivoted wheels without teeth, arranged in different planes with the ...

American regulator

Chronometry; Clock

About 1870 the term 'regulator' was employed by American clock manufacturers advertising spring-driven (without fusees) recoil escapement, non-temperature-compensating pendulum wall clocks. ...

alcohol wound clock

Chronometry; Clock

Built about 1945 this unique clock was housed in a four-glass brass case. A set of sealed glass tubes was partially filled with alcohol and formed in the shape of a wheel, and a small electric light ...

altitude sundial

Chronometry; Clock

It is possible to measure time from the sun's altitude when the date is known. Portable altitude dials with a date setting scale take a great variety of forms, including the chalice, crescent, ...