Electro-mechanic calendar timepiece

Details Electro-mechanic calendar timepiece Electro-mechanic calendar timepiece

1977-05-13

1979-01-30

Scott, James R.

G04B 1924

Patent

active

041365143

ABSTRACT:
An electro-mechanic calendar timepiece includes a braking device for generating torque to prevent drifting or floating of the movement gearing when the intermittent calendar driving mechanism is not rotating. When the calendar driving mechanism is rotating the braking device is not operating and the calendar driving mechanism cooperates with a lever arm and spring to generate torque to prevent the floating of the movement gearing.

REFERENCES:
patent: 3738097 (1973-06-01), Vuilleumier
patent: 3882669 (1975-05-01), Jakob

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