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

Transit instrument

Chronometry; Clock

A telescope mounted in horizontal bearings lying in an east-west direction, so that if the telescope is at right angles to its axle or arbour it will always lie in the meridian plane. A vertical ...

A broad term for any clock made to be used when travelling. In the 17th century it usually took the form of an extremely large watch, but bracket clocks and even lantern clocks were made during the ...

Triple chimes

Chronometry; Clock

Movement that plays 3 different chimes: Westminster, Whittington, St. Michael.

Babylonian hours

Chronometry; Clock

A system of hour reckoning in which the whole day-and-night period was divided into 24 equal parts with the numbering starting at sunrise. The system was used in Bohemia and Hungary between the mid ...

Auxiliary dial

Chronometry; Clock

A small dial either of flat ring, annulus shape, or engraved or painted, which is added to the main dial to indicate subsidiary movement such as calendar work, Strike/silent mechanisms, alternative ...

Automatic lathe

Chronometry; Clock

A lathe specially designed and set up for the purpose of mass-producing specific parts by automatically performing several machining operations in succession, such as turning, threading, milling, ...

Automata clock

Chronometry; Clock

Automata clocks are those with moving figures of persons or animals which function while the clock is going or when it strikes. The earliest-known clock to carry automata is the original Strasbourg ...