Callipers

Callipers

Pivoted callipers are brass or steel instruments with two pivoted legs adapted to point inwards or outwards accord king to type of need. They are used for taking external or internal comparative measurements, particularly of curved surfaces or bores. Sometimes they have a locking screw and means of making fine adjustments, as when fitted with a geared quadrant.

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Part of Speech: noun
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Industry/Domain: Chronometry
Category: Clock
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calliper

Medical devices; Ultrasonic & optical equipment

Used to measure the distance between two points or the surface and dimension of a region of interest.

callipers

Arts & crafts; Sculpture

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Medical devices; Ultrasonic & optical equipment

Measurement callipers used to obtain a measure of distance.

ellipse callipers

Medical devices; Ultrasonic & optical equipment

Measurement callipers used to obtain a measure of area.

reverse painting

Chronometry; Clock

A picture or design often used on a clock tablet and painted on the back side of a glass in reverse order of a normal painting.

reverse fusee

Chronometry; Clock

The reaction of engagement of the great wheel with its pinion is transmitted to its pivot and, in the usual layout, the pull of the fusee line adds to this load. In the ...

rete

Chronometry; Clock

The rotatable circular star map of an astrolabe, in the form of a network of pierced and engraved metal.

frosting

Chronometry; Clock

The granular or matted finish given to the surface of brass clock parts prior to gilding. It is produced by dipping the parts briefly into a concentrated mixture of nitric and ...

front wind

Chronometry; Clock

A clock that is wound through an opening in the dial.

free pendulum

Chronometry; Clock

It has been known for a long time that a 'free' pendulum clock will achieve perfect timekeeping. A pendulum, to achieve this, would maintain its arc and do no work, without ever ...

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