Cantilever (clock)
A cantilever chair is understood to mean two types of pendulum clock :
- a clock that has its own clockwork in the form of a pendulum lens ;
- a wall clock with a pendulum that swings freely below the clock case.
description
Type A
The clock is designed in such a way that it practically represents its own pendulum. The clockwork with the dial form the pendulum lens. There are clocks known in which the dial is attached to both sides of the pendulum lens so that the time can be read from the front and back at the same time.
The first clocks are from the time of Louis XVI. known. The suspension was mostly made in the form of an ancient lyre . The temperature-compensated pendulum rod also represents the strings of the ancient Greek musical instrument. It was not until the 19th century that this cantilever type spread in various other forms.
Type B
The second type is a wall clock with a spring drive . The clockwork with a dial is housed in a square wooden case. The pendulum is guided downwards through a narrow slot in the housing so that it can "swing freely" below the box. Clocks of this type were created in German-speaking areas during the period of historicism . Mass distribution did not take place until the middle of the 20th century. Replicas of these watches are still available in stores today.
literature
- Richard Mühe , Horand M. Vogel: Old clocks . Callwey, Munich, 1997, ISBN 978-3766710185 .
- Peter Heuer, Klaus Maurice: European pendulum clocks. Decorative instruments of timekeeping . Callwey, Munich 1988, ISBN 978-3766708588 .
See also
Web links
- Cantilever chair . In:UhrenLexikon.de. Retrieved July 30, 2014.
- Cantilever chair. In: Watch-Wiki - The great watch lexicon. Retrieved July 30, 2014 .
Individual evidence
- ↑ Fritz von Osterhausen: Callweys lexicon . Munich 1999, ISBN 3-7667-1353-1 ; P. 107
- ↑ Rudi Koch (Ed.): BI-Lexikon - Clocks and Time Measurement , VEB Leipzig, 1986, ISBN 3-323-00100-1 ; P. 75
- ↑ Viktor Pröstler: Callweys manual of the clock types. From the wristwatch to the zappler . Callwey Munich 1994, ISBN 3-7667-1098-2 ; P. 123
- ↑ Gerhard König: The clock (history - technology - style) ; Koehler & Amelang Verlag; Leipzig 1991; ISBN 3-7338-0065-6 ; P. 281