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

Baroque

Chronometry; Clock

That part of a clock which may be set to give audible warning at a predetermined time. The mechanism is usually triggered by a lever which moves into a slot in a cam driven by the hour wheel, ...

Barrel

Chronometry; Clock

The cylindrical brass box containing a mainspring, or designed to accommodate cables, cat gut or some other strong and flexable line to receive power from the weights of a clock.

Barrel arbour

Chronometry; Clock

The mainspring barrel generally rotates on the barrel arbor, and the centre of the mainspring is attached to it by a hook. In a going-barrel clock it is squared at one end to take the winding key.

A clock which continuously records changes in atmospheric pressure. Robert Hooke was the first to use a clock to drive a drum carrying a strip of paper on which a pen drew a continuous record of the ...

Binnacle clock

Chronometry; Clock

From about 1812 a marine clock had what is now known as 'ship's bell' striking. The minute hand made a revolution every half hour and the hour had every eight hours; a suitable but unconventional ...