Chronometry

Chronometry

The science of the measurement of time.

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Chronometry > Clock

lantern pinion

Chronometry; Clock

A form of pinion construction in which the pinion leaves are made from round steel pins, held by brass discs. In some cheap clocks the steel pins are held at one end only, by a ...

lantern clock

Chronometry; Clock

So called because of its frame's resemblance to a lantern. Other names have been used, including Cromwellian and bedpost clock, the former because the bell at the top suggested a ...

lantern chuck

Chronometry; Clock

This is a specialised chuck for holding parts such as screws, and is used with the screwhead or screwpoint polishing tool.

lancet clock

Chronometry; Clock

A type of longcase or bracket clock with a case shaped at the top in the form of a pointed Gothic arch. This design is encountered during the early 19th century in England and ...

lacquering

Chronometry; Clock

Various lacquers are used to give metal or wood a protective or decorative covering. They are applied hot or cold, by brush, spray or by dipping. Shellac dissolved in methylated ...

label

Chronometry; Clock

The practice of inserting a printed paper label within a clock by the maker or retailer may have developed from a similar, earlier usage among American cabinetmakers. Early labels ...

knurling

Chronometry; Clock

Serrations or other indentations on a metal surface such as a clock hand-set button, designed to improve the grip of the fingers upon it. Knurling is produced by a knurling tool ...