Gear train mechanism of a watch

Details Gear train mechanism of a watch Gear train mechanism of a watch

1978-12-27

1981-02-24

Rubinson, Gene Z.

Horology: time measuring systems or devices

Electrical time base

368139, 368 76, G04C 1500, G06F 104, G04F 500, G04B 100

Patent

active

042531764

ABSTRACT:
A gear train mechanism for a wristwatch provides a thinner watch, the gear train comprising a frame plate, a dial, a plate interposed between the dial and the frame plate, and a shaft rotatably supporting a center wheel and pinion. The shaft is attached to the frame plate. Rubbing and misalignment of the hands is prevented by aligning their rotating support members for an extended longitudinal distance on the shaft. This is accomplished by the gear train of this invention despite a reduction in the thickness of the watch. Hour and minute hands or hour, minute, and second hands are provided in alternative embodiments.

REFERENCES:
patent: 2781630 (1957-02-01), Bamat
patent: 3381468 (1968-05-01), Jeanmonod et al.
patent: 4074517 (1978-02-01), Tatsumi et al.
patent: 4077199 (1978-03-01), Sakuma et al.
patent: 4079582 (1978-03-01), Tamaru et al.
patent: 4087957 (1978-05-01), Miyasaka et al.
patent: 4123895 (1978-11-01), Miyazaki

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