US412457A

US412457A - Ferdinand bourquin

Info

Publication number: US412457A
Authority: US
Current assignee: Cartier Creation Studio SA
Publication date: 1889-10-08
Anticipated expiration: 1906-10-08

Description

(No Model.)

P. BOU-RQUIN. SHIFTING MECHANISM FOR STEM WINDING AND SETTING WATOHES= No. 412,457. Patented Oct. 8, 1889.

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UNITED STATES I PATENT OFFICE.

FERDINAND BOURQUIN, OF ST. IMIER, SWITZERLAND.

SHIFTING MECHANlSM FOR STEM WINDING AND SETTING WATCHES.

SPECIFICATION forming part of Letters Patent No. 412,457, dated October 8, 1889. Application filed April 4, 1889. Serial No. 305,938- (No model.) Patented in Switzerland December 24:, 1888, N0- 228' To all whom it may concern.-

lie it known that I, FERDINAND BoURoUIN, watch-man ufacturer, of St. Imier, Switzerland, have invented a new and useful Improvement in 'IIand-SettingMechanism forWVatches, (for which I have obtained a patent in Switzerland, No. 228, December 24, 1888,) and the following is declared to be a full, clear, and exact description thereof.

My invention relates to that class known as stem winding and set-ting watches, wherein the mainspring is wound and the hands set by a crown and winding-stem and crown-pinion and a mechanism adapted to shift the gear connected with the crown-pin ion from the gears of the mainspring to those for set-ting the minute and hour hands. This shifting mechanism has usually contained a push-pin passing through the central rim of the case or a pivoted leverconnected to the case and passing out from beneath the bezel.

In my improvement the bezel is snapped upon the annular rib of the watch-case center without any hinge and sufficiently tight to exclude dust, but loose enough to be partially revolved, and the same is notched on its inner edge, and into this notch one end of a pivoted lever is received, the other end of said lever bearing against the swinging plate, which plate carries the toothed wheel that is adapted to engage with the toothed wheel of the mainspring or with the toothed wheel of the minute-hand, and a movement given to the bezel to partially rotate the same causes this lever to swing and operate the aforesaid plate.

In the drawings, Figure 1 is a plan of the winding and setting mechanism in its normal position, and Fig. 2 is a plan View of the same parts in their shifted position. Fig. 3 is an elevation of a portion of the bezel, and Fig. 4 is a section of the bezel and watelrcase.

A represents the winding-stem of the watch, and B the crown-pinion.

0 represents the toothed transmitting-wheel, andD the swinging plate upon which the same is pivoted.

E represents the toothed wheel upon the mainspring arbor, and F represents one of the toothed wheels in the hand'gearing.

G represents the bezel of the watch, or, in other words, the metal ring which carries the crystal, and H' represents a lever pivoted about midway of its length to the main plate of the watch. One end of this lever bears against the swinging plate D, and the opposite end is received into a notch formed in the inner edge of the metal bezel. This bezel G may be made in any desired manner, the same being free to turn oircumferentially.

The parts as represent-ed in Fig. 1 are in their normal position, the toothed wheel 0 engaging with the toothed wheel F. upon the arbor of the mainspring in position to wind up the mainspring, and the parts are returned to this position after being swung for setting the hands by any suitable spring. I have shown the spring (1 acting against an arm of the lever or plate D. To shift this mechanism, so as to set the hands, the bezel G is moved in the direction of the arrow, Fig. 2, which movement swings the lever II into the position shown in said Fig. 2 and simultaneously moves the plate D and its wheel 0, bringing the wheel G into mesh with the toothed wheel or pinion F, and the parts, as shown in Fig. 2, are in position to set the minute and hour hands of the watch.

In my improved device the shifting mechanism is covered up, so that no opening is left for the entrance of dust into the delicate works of the watch. Besides, this device is simple and effective and not liable to get out of order.

I claim as my invention 1. The combination, with the winding and setting mechanism in a watch, of a pivoted bar or lever II and the bezel G, notched to engage one end of the lever II and capable of being partially rotated, substantially as and for the purposes set forth.

2. The combination, with the stem A, crownpinion l3, pivoted swinging plate D, and wheel C in the winding and setting mechanism, of the pivoted bar or lever II and the movable bezel G, notched on its inner edge and adapted to engage and move the lever H, substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FERDINAND BOURQUIN. Witnesses: A. Mrononn, 0. A. FAIVRET, J r.