Timepiece with jumping seconds

Details Timepiece with jumping seconds Timepiece with jumping seconds

2003-04-24

2008-03-11

Luebke, Renee (Department: 2833)

Horology: time measuring systems or devices

Escapements

With oscillating or reciprocating means

Reexamination Certificate

active

07341373

ABSTRACT:
The invention relates to a mechanical timepiece with a jumping second hand (16), consisting of a barrel, a first gear train which is driven by the barrel and which comprises a minute wheel (54) and a second wheel (30), an escapement which is actuated by the gear train and a regulating element, the oscillations of said regulating element being maintained by the escapement. Moreover, the aforementioned escapement comprises an escapement wheel (32) which performs a revolution in 4 seconds by means of jumps. For the purpose of the jumping second function, the inventive piece comprises a second gear train, the first mobile (34) thereof being mounted to the arbor of the escapement wheel (32) and the last mobile (48) of same being mounted to the arbor bearing the hand (16).

REFERENCES:
patent: 2921476 (1960-01-01), Vogt

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