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

Remontoire

Chronometry; Clock

A device found in high-quality clocks, which winds an auxially spring or weight at regular short intervals to provide a more constant driving force for the escapement.

Regulator dial

Chronometry; Clock

In a regulator for astronomical purposes the dial is usually arranged with separate circles for hours, minutes and seconds, the outer circle being for minutes and large subsidiary dials below and ...

Regulator

Chronometry; Clock

Mechanism that can be adjusted to make the clock more accurate. Sometimes the word "Regulator" is printed on the clock's glass, usually on Schoolhouse clocks.

Reflecting circle

Chronometry; Clock

An elaborated form of the sextant used for measuring the large angles required in the determination of longitude by the method of lunar distances.

Red stuff

Chronometry; Clock

A refined red oxide of iron which is used for polishing gold, silver, brass and steel work. It is sold in various grades of fineness; the coarse, hard type, bluish-purple in color, is known as ...

The recoil escapement most commonly found in pendulum clocks, first used in the last quarter of the 17th century. In an anchor escapement from a 19th-century bracket clock, the escape wheel rotates ...

Reamer

Chronometry; Clock

Reamers are similar tools to broaches though not made in such small sizes. They have a number of spiral or straight longitudinal flutes to form the cutting edges, and are made for either hand or ...