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

Slang term for wall regulator with "R-A" on the pendulum. "R" stands for retard by turning the adjusting nut toward R to lower the pendulum bob. "A" stands for advance by turning the adjusting nut ...

quill

Chronometry; Clock

A device by which a spindle may be rotated and at the same time moved axially, as in the driving spindle of a bench drill in which the drill can travel to and from the work while spinning. It may ...

quartz-crystal clock

Chronometry; Clock

Shortly after the excellent stability of frequency control by quartz crystal when applied to valve oscillator circuits was discovered, efforts were directed to producing a clock using this principle ...

quartz crystal

Chronometry; Clock

A crystal of quartz suitably cut and mounted will produce an electrical effect when mechanically deformed; conversely, it mechanically deforms when subjected to an electrical field. This is known as ...

quartz

Chronometry; Clock

Electronic transistorized movements that work on battery energy and require no winding or plug-in electricity. A tiny quartz crystal, vibrating at a high frequency, allows the clock mechanism to ...

quandrant

Chronometry; Clock

In its simplest form, a quarter-circle of metal, ivory or wood, with a pair of sights along its upper edge, a scale of degrees inside its curved edge, and a light plumb-bob on a string hanging from ...

punch, bell

Chronometry; Clock

A self-centering punch, with a center punch point at one end, designed to slide down a tube or sleeve which has a cone- or bell-shaped mouth. With the bell mouth placed directly over the end of a ...