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The British Horological Institute Limited

Index of Hints and Tips

 

Know Your Terminology - Lever Escapements

When trying to explain about a wrist watch or a clock to other repairers and supply houses, it is essential that you use the correct terminology. To help you the following diagrams were taken from the intermediate grade of the British Horological Institute's Distance Learning Course. A lever escapement is found in both watches and on modern platforms on clocks..

Parts of a Lever Escapement

Lever escapement

 

 

 

 

 

 

 

 

 

 

 

 

1 Balance
2 Balance Spring
3 Balance Spring Collet
4 Large Roller
5 Small Roller
6 Banking Pins
7 Lever
8 Pallet (Exit)
9 Pallet Staff
10 Pallet (Entrance)
11 Escape Wheel
12 Horns of Lever
13 Guard Pin
14 Impulse Pin

 

Typical Balance Staff

Watch motion work

 

 

 

 

 

 

 

 

 

 

 


Index of Hints and Tips

 

 

 

 

 

 

 

 

 

 

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