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=== early balance springs === | === early balance springs === | ||
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| + | == Literature == | ||
| + | *[[The Marine Chronometer. Its History and Development]], ISBN 0-907462-05-7 | ||
| + | *[[Time and Timekeepers]], ISBN 0780800087 | ||
[[Category:Glossary]] | [[Category:Glossary]] | ||
Version vom 6. Februar 2009, 03:10 Uhr
Balance spring
(or hairspring)
| other languages: de |
A balance spring is a fine spiral or helical spring used in mechanical watches, marine chronometers, and other timekeeping mechanisms to control the rate of vibration of the balance wheel. A balance spring usually has a regulator lever to adjust the rate of the timepiece.
Types of balance springs
flat spiral
Breguet overcoil (Breguet spring)
| other languages: de |
chronometer helix
showing curving ends
early balance springs
Literature
- The Marine Chronometer. Its History and Development, ISBN 0-907462-05-7
- Time and Timekeepers, ISBN 0780800087