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

clock plate cock

Chronometry; Clock

A bracket with one foot, often used for pivoting clock arbors outside the plates, as in the case of a balance or escape cock.

Generally, a pendulum having part of its weight above the point of suspension. The greater the proportion of weight above the suspension, the longer the period of vibration of the compound pendulum. ...

click

Chronometry; Clock

The pivoted bar which allows movement in one direction only of a ratchet wheel. In engineering, the term 'pawl' is generally used for the part which horologists call a 'click'

chuck collet

Chronometry; Clock

This type of chuck is often called a split chuck. It consists of a hollow spindle, usually threaded at one end, the forward end being accurately drilled or broached and split, and able to close on ...

chuck box

Chronometry; Clock

The chuck box is used for holding work during turning. The box chuck consists of a hollow cylinder fitted with radial screws which grip the work to be turned. This type of chuck is particularly ...

chops

Chronometry; Clock

Jaws of wood, fibre or soft metal placed in a vice to protect work being held there from being marked by the vice.

chronometer balance

Chronometry; Clock

The chronometer balance has a split laminated rim made by fusing brass on to a steel ring. This is usually fitted with two large compensation adjusting weights with two timing nuts which are used to ...