Saw clock
The saw clock is a playful variant of the gravity clock, in which the clock body is driven by its own weight by sliding down a rack .
description
The mass of the clockwork , which is additionally increased by means of a solid metal housing, serves as the weight for the drive. The clockwork moves vertically from its highest position down on a rack. Instead of a barrel, there is a gear in the movement that engages directly in the rack. When the watch body sinks, it forcibly rotates, thereby driving the watch. The clock is wound up by simply sliding it up on the rack. The similarity of the rack with a saw gives the watch its name. Saw clocks were mainly made in the 17th and 18th centuries. The watches usually have a verge escapement and a short front pendulum as a regulator .
Since these clocks are quite popular as antiques , replicas that are true to the original have been manufactured and sold since the 1970s.
Web links
- Search for saw clock in the German Digital Library
- Saw clock in the Watch Wiki
- Rococo saw wall clock , Dresden State Art Collections
- Classicist saw clock with date display , Staatliche Kunstsammlungen Dresden
Individual evidence
- ^ Ernst von Bassermann-Jordan : watches; A guide for collectors and enthusiasts . Richard Carl Schmidt & Co. Berlin 1920; P. 53
- ↑ Viktor Pröstler: Callweys manual of the clock types. From the wristwatch to the zappler . Callwey Munich 1994, ISBN 3-7667-1098-2 ; P. 117
- ↑ Fritz von Osterhausen: Callweys lexicon . Munich 1999, ISBN 3-7667-1353-1 ; P. 287