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'''Balance spring'''
'''Balance spring'''<br>(or ''hairspring'')
{{other languages|[[Spirale|de]]}}
[[Bild:Spiralabzählgerät.jpg|thumb|Spiralabzählgerät]]
A balance spring, or hairspring, 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.
A [[balance]] spring is a fine spiral or helical spring used in mechanical watches, [[marine chronometer]]s, 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 ==
== Types of balance springs ==


=== flat spiral ===
*flat spiral
*[[Breguet overcoil (Breguet spring)]]
*chronometer helix
*showing curving ends
*early balance springs


=== Breguet overcoil ===
== [[Terminologie|TERMINOLOGIE NUMEROTATION]] ==


=== chronometer helix ===
{{Terminologie |ISO Nummer=40.140|Alte TNR=(0734)|
de=Spiralfeder reguliert|nl=|
en=Timed hairspring|pt=Espiral regulado|
es=Espiral regulado|ru=Спираль правленная|
fr=Spiral réglé|=|
it=Spirale regolata|=|
Bild=Zahnrad ico
}}


=== showing curving ends ===
== Literature ==
*[[The Marine Chronometer. Its History and Development]], ISBN 0-907462-05-7
*[[Time and Timekeepers]], ISBN 0780800087


=== early balance springs ===


[[Category:Glossary]]


[[Category:Glossary]]
[[de:Spirale/de]]
[[en:Hairspring]]
[[it:Spirale/it]]
[[nl:Spiraalveer]]
[[ru:Спираль]]

Aktuelle Version vom 2. Juni 2015, 23:10 Uhr

Balance spring
(or hairspring)

Spiralabzählgerät

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

TERMINOLOGIE NUMEROTATION

40.140 (0734)
de Spiralfeder reguliert nl
en Timed hairspring pt Espiral regulado
es Espiral regulado ru Спираль правленная
fr Spiral réglé
it Spirale regolata


Literature

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