Escapement mechanism for watch

Details Escapement mechanism for watch Escapement mechanism for watch

1976-11-26

1978-08-15

Jackmon, Edith S.

58 23D, 58118, 74 15, G04F 704, G04C 300, G04B 1500

Patent

active

041062825

ABSTRACT:
A mechanical spring-powered hand-held digital stopwatch having a gear-operated decade counter display assembly, a spring-powered windup mechanism adapted to reset the counter during winding and a cam adjustable timing escapement mechanism, the escapement mechanism including an escapement gear actuating a balance through a limited pivotal angle, the angle of pivoting being governed by cam means interposed between a pair of arms carried by the balance.

REFERENCES:
patent: 443165 (1890-12-01), Emery
patent: 2948109 (1960-08-01), Witte
patent: 4050236 (1977-09-01), Larsson

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