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

Direction sundial

Chronometry; Clock

Direction sundials, if portable, are oriented by a magnetic compass. They measure time by the hour angle of the sun relative to the meridian.

Diptych sundial

Chronometry; Clock

A convenient form of pocket compass dial. It consists of a pair of rectangular metal or ivory plates, hinged along a shorter edge. When closed it is flat, but in use it is opened, with the upper ...

Digital

Chronometry; Clock

Refers to a time display that uses no hands but shows the time in numbers and read out screen.

Drawplate

Chronometry; Clock

A hardened steel plate in which a number of graduated, tapering, round or suitably shaped holes have been formed to enable wire to be drawn successively through diminishing sizes of holes, to be ...

A long, strongly built bench used for drawing lengths of wire to a desired section. One end of the bench is fitted with a large capstan or wheel, and the other has supports to hold the drawplate. The ...

Dolphin fret

Chronometry; Clock

The figures of a grotesquely shaped, scaly fish with a large head and curved tail standing high above it, was a favourite motif in baroque decoration. Legs of tables and arms of chairs were ...

Chinese divination boards

Chronometry; Clock

Divination boards were fairly common in China. They consisted of a round disc, of various diameters, usually of wood either lacquered or varnished. In the centre was a magnetic compass, and around ...