Mechanical system for indicating large size calendar date...

G - Physics – 04 – C

Patent

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Details

G04C 17/00 (2006.01)

Patent

CA 2271999

A. Description: a) a cambered toothed ring (1) of 31 more or less long and high slots are urged to replace the initial date ring; b) an 8-toothed star (10) topped with a disk (11) is used for indicating the tens of the month through an open window (16) in the dial (15); c) a 10-toothed star (7) topped with a disk (8) is used to indicate the units of the month through an open window (16) in the dial (15). d) a spring cam jumper (13) maintains the stars in position; e) a main plate (5) of the movement diameter is urged to be fixed on the watch movement to assemble together the whole set of said components. B. Function mode: a) the toothed ring (1) rotates completely in 31 days; b) the cambered slots of said ring drive each star forward by one tooth at a time; c) the stars co-operate with the ring each at a different level; d) when a slot is shorter or less high, it doe not drive the star and the latter stays put; e) such that the ring is programmed for the disks to indicate through the dial the days of the month from 1 to 31 and automatically shift from 31 to 1.

A. Description: a) une couronne dentée (1) surélevée de 31 créneaux plus ou moins long et haut vient se substituer à la couronne des dates d'origine; b) une étoile de 8 dents (10) surmontée d'un disque (11) viendra indiquer les dizaines du mois à travers un guichet (16) ouvert dans le cadran (15); c) une étoile de 10 dents (7) surmontée d'un disque (8) viendra indiquer les unités du mois à travers un guichet (16) ouvert dans le cadran (15); d) un ressort sautoirs (13) maintient les étoiles en position; e) une platine (5) du diamètre du mouvement vient se fixer sur le mouvement de montre afin de lier l'ensemble des composants précédemment cités. B. Fonctionnement: a) la couronne dentée (1) tourne en 31 jours; b) les créneaux surélevés de cette couronne font avancer d'un cran à la fois chaque étoile; c) les étoiles travaillent avec la couronne chacune sur un niveau différent; d) lorsqu'un créneau est plus court ou moins haut, il n'emmène pas l'étoile et celle-ci reste en place; e) de sorte que la couronne est programmée pour que les disques viennent indiquer à travers le cadran les jours du mois de 1 à 31 et passent automatiquement de 31 à 1.

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