Calendar watch movement
AssigneeA. Schild S.A.
InventorBeat Gilomen
Life of this patent
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Abstract
Driving mechanism for a calendar watch mechanism including indicia of day and date, a display window and means to advance said day and date indicia to said window, characterized by a calendar wheel which makes one revolution each 24 hours, a drive element on that wheel, a rapid advance member, a cocking element, the rapid advance member being elastically acted on and having a ramp which cooperates with the cocking element to control the rotation of the calendar wheel.
Claims10
Calendar watch movement comprising a calendar indicator provided with teeth, a driving member driven continuously in rotation from the movement, a driven member, means coupling said driving and driven members with angular play, a calendar wheel geared to said driven member to turn one turn each twenty-four hours, elastic rapid advance means, means on said calendar wheel to cock and then absorb the thrust of said elastic rapid advance means to advance said calendar wheel through an arc predetermined by the angular play of said coupling means, and means on said calendar wheel coacting with successive teeth of said indicator member during the advance of the calendar wheel whereby to advance the indicating member by one tooth.
Dependencies are inferred from the claim text.