Device for the fine adjustment of a balance wheel/hairspring

Details Device for the fine adjustment of a balance wheel/hairspring Device for the fine adjustment of a balance wheel/hairspring

2006-06-13

2006-06-13

Miska, Vit W. (Department: 2841)

Horology: time measuring systems or devices

Escapements

With oscillating or reciprocating means

C368S169000, C368S173000, C368S175000

Reexamination Certificate

active

07059764

ABSTRACT:
In order particularly to put a watch into beat and adjust the isochronism, in addition to the poising screws (2a,2b) of the balance (1) and the fine adjusting screw (7) pressing on the index tail20ato alter the orientation of the index (20), the device includes, on the one hand, two screws (19, 29) respectively fixed in the balance cock (10) and in the index (20) to maneuver clamps by means of L-shaped rocking elements (13, 23) to fix the end of the balance spring and define its useful length, and on the other hand, a screw (9) for immobilizing the index (20) in a determined position, these three screws (9, 19, 29) enabling a fine adjustment to be carried out.

REFERENCES:
patent: 3429119 (1969-02-01), Tamuru
patent: 3745763 (1973-07-01), Zaugg
patent: 4201042 (1980-05-01), Visconti et al.
patent: 6609822 (2003-08-01), Tokoro et al.
patent: 368 098 (1962-11-01), None
patent: 502 623 (1970-08-01), None

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