English Lever Escapement / Echappement à ancre anglais
Автор: Waterpearl
Загружено: 2020-10-19
Просмотров: 9052
Описание:
The lever escapement was invented by British clockmaker Thomas Mudge around 1755, and improved by Abraham-Louis Breguet (1787), Peter Litherland (1791), Edward Massey (1800). Since about 1900 virtually every mechanical watch, alarm clock and other portable timepiece has used the lever escapement.
The difference between English and Swiss lever escapements is in the impulse planes.
In a Swiss lever escapement, the impulse planes are distributed on the pallets and on the wheel teeth, whereas in an English lever escapement , with pointed wheel teeth, the impulse planes are entirely on the pallets.
https://en.wikipedia.org/wiki/Lever_e...
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