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

The story of the discovery of the isochronism of a pendulum by Galileo Galilei's observation of a swinging lamp in Pisa Cathedral is well known. Galileo believed that the pendulum took the same time ...

fusee or fuzee

Chronometry; Clock

A grooved cone on which the cord from the spring container unwinds to equalize the force of the spring in a clock.

Friesland clocks

Chronometry; Clock

During the third quarter of the 18th century a type of domestic clock was produced in Friesland which was entirely new to the province. The case was a simple hanging version of an Amsterdam longcase ...

Friesland and Groningen clocks

Chronometry; Clock

The most common Dutch bracketed clock is the Friesland stoelklok; it is still produced according to a design which has hardly changed for over 200 years. Its development took place as much outside ...

marble clock

Chronometry; Clock

A generic term applied to a type of clock first manufactured in France towards the end of the 19th century. While true marble has long been used for clock cases, the so-called 'marble' clock has a ...

mandril

Chronometry; Clock

A lathe with a face plate fitted with dogs for gripping work such as flat plates and parts. It is equipped with a spring or pump center with a conical point down the center of the lathe spindle, used ...

maltese clock

Chronometry; Clock

The Italian altar clock died out in the early 18th century, but the general design was revived in the early 19th century in the island of Malta. The pioneer is believed to have been Kalcidoniju ...