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 age of the moon on 1st January in any year; when this is known its age at any subsequent date in the year can be deduced. Since twelve lunations equal 354-36 days and a year equals 365. 24 days, ...

engraving

Chronometry; Clock

Engraving was used extensively in the decoration of clocks, for dial centers, back plates, cases, hour, minute and second numerals, and the maker's name. Numerals when engraved were usually filled ...

wheel-cutting engine

Chronometry; Clock

A wide variety of wheel-cutting engines have been made over the past three centuries, but all follow more or less the same general principle. It is generally agreed that the wheel-cutting engine ...

fusee engine

Chronometry; Clock

The clock-barrel engine could also be used for cutting the groove in fusees for bracket clocks, except that the cutter would follow the conical profile of a fusee instead of the straight cylinder of ...

clock-barrel engine

Chronometry; Clock

In the past complex tools were often known as engines. Clock-barrel engines were used for cutting the spiral groove to take the gut lines of an eight-day long case clock barrel. The tool was made ...

engine turning

Chronometry; Clock

Engraving produced by a machine. Beautiful decorative engraving in many designs can be done with the work in a specialized lathe or rose engine, in which the eccentric movement of the work, or ...

enamelling

Chronometry; Clock

The process used to give a hard vitreous finish to clock dials and sometimes ornamental parts of clock cases. It should not be confused with painting. Enamel is a fusible vitreous silica-based ...