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

Ticket clock

Chronometry; Clock

An American invention of 1903 utilising the spring-like properties of then celluloid sheet. Two small circular drums bear a large number of small celluloid tickets free to pivot at the point of ...

A clock which requires to be wound daily, with a margin of generally something over six hours to allow for a delay in rewinding. In particular, the name is associated with longcase clocks of 30-hour ...

Thirty-day clock

Chronometry; Clock

A clock that runs for a month on a single winding.

Thirteen-piece dial

Chronometry; Clock

A form of enamel dial fashionable in France c. 1750, composed of twelve wedge-shaped car-touches bearing the hour numerals, fitting closely around a circular domed centrepiece painted with the ...

Speaking clock

Chronometry; Clock

In his journal for 27th April 1762, John Wesley gives a description of a speaking clock made by a Mr. Miller of Lurgan, Ireland. The Paris Exposition of 1900 featured a clock 6 ft. High which ...

Spandrels

Chronometry; Clock

The four corners that square off a round clock dial, often featuring painted designs or metal decorations.

Solstices

Chronometry; Clock

The dates when the sun appears to stand still in the heavens, i.e. When it reaches its greatest declination, north or south. Since these are maximum and minimum values on a smooth curve they cannot ...