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

Term to describe the tick-tock of a mechanical timepiece. A clock is said to be in beat if the spacing between the tick and the tock are equal. If they are not equally spaced, the clock is out of eat ...

Beak iron

Chronometry; Clock

A somewhat archaic term for a steel anvil or stake on which hot or cold metal is hammered or bent to shape. For clockmaking, anvils may be quite small and formed for holding in a bench vice, larger ...

Clock plate cock

Chronometry; Clock

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

Compound pendulum

Chronometry; Clock

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 ...