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

Add a new term

Contributors in Clock

Become a Contributors

Clock

hammer

Chronometry; Clock

The clock part that hits the bell or gong to indicate time.

halfpenny moon or halifax moon

A form of auxiliary lunar dial of circular shape which was adapted for use on square-dial clocks. Although halfpenny moons were occasionally used by London makers as early as 1735, the vast majority ...

raingo clock

Chronometry; Clock

A type of orrery clock made by the firm of Raingo freres of Paris. The firm made the usual range of domestic clocks but in the decade 1820-30 became particularly well known for orrery clocks. These ...

rack tail

Chronometry; Clock

The lower extension of the rack which contacts the snail and determines the number of hours or quarters to be struck next.

rack hook

Chronometry; Clock

The arm acting as a click for the rack in rack striking clocks.

rack clock

Chronometry; Clock

A clock which uses its own weight as motive power and gradually descends a toothed rack which meshes with the first wheel of the train. Winding is effected by pushing the clock to the top of the rack ...

rack

Chronometry; Clock

A number of gear teeth cut along a bar enabling rotary motion to be converted to linear motion. Also, in striking clocks, the arm cut with ratchet-shaped teeth which count the number of blows to be ...