Gordon Bradt, kinetic table clock 'Six Man Clock', Kinetico Studios

Record summary

Catalogued by Invaluable auction listings (lot Lot 18FB2DAF42), this is a clock, made in United States, dated 1970s–1980s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Clocks collection. Materials and techniques recorded by the source: brass. The record is illustrated with 4 photographs.

Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.

Catalogue description

Atlas type guide

Bracket, table and spring-driven clocks

Spring-driven clocks freed timekeeping from the hanging weight. The coiled mainspring, documented from the fifteenth century, made portable table clocks possible; to even out its declining force, makers used the fusee, a conical pulley connected to the barrel by a gut line or chain. Renaissance table clocks from Augsburg and Nuremberg — drum-shaped, square or tower-shaped in gilt brass — were luxury scientific objects, often with astronomical dials and alarms.

After the pendulum, English makers developed the bracket clock: a wooden case with a carrying handle, a short pendulum with a verge escapement, and often repeating work to sound the hours on demand at night. Later examples use the anchor escapement. In the nineteenth century, 'table clock' became a broad term for spring clocks of every nationality.

General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.

Read next:FuseeVerge escapementAnchor (recoil) escapement