US847819A - Stem-winding and stem-setting watch. - Google Patents

Description

'PATENTED MAR. 19, 1907 W. E. PORTER.

STEM WINDING AND STEM SETTING WATCH.

APPLICATION FILED AUG. 10, 1906.

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UNITED STATES PATENT OFFICE.

WILSON E. PORTER, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO NEW HAVEN CLOCK CO., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

STEM-WINDING AND STEM-SETTING WATCH.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed August 10, 1906. Serial No. 330,031.

To all whom, it may concern.-

Be it known that I, WILSON E. PORTER, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Stem-Winding and Stem-Setting I/Vatches; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a view in rear elevation of a watch constructed in accordance with my invention with the back cap removed; Fig. 2, a sectional view on the line a b of Fig. 1; Fig. 3, a plan view of the bridge as it appears when detached; Fig. 4, a corresponding re verse plan view; Fig. 5, a detached broken View of the rear movement-plate.

My invention relates to an improvement in stem-winding and stem-setting watches, the object being to organize the winding mechanism so as to facilitate handling it and reducing the liability of its derangement to the minimum.

In carrying out my invention as herein shown I employ a bridge 2, formed near its ends with screw-holes 3 for the reception of screws 4, by which it is secured in place over an opening 5 in the rear movement-plate 6, which is set over the pillars 7 entered by the screws. In the said bridge I permanently mount the main winding-wheel 8, staked or otherwise secured to the winding-hub 9, which is furnished with a hook 10 or otherwise adapted for the attachment to it of the inner end of the mainspring 11, the said wheel bearing directly upon the inner face of the bridge. The outer end of the said hub 9 is formed with a shoulder 12, turning loosely in a bearing-hole 13 in the bridge 2. The said hub in turn is formed with an annular flange 14, projecting above the upper face of the bridge for the reception and attachmentof a relatively large washer 15, which rides upon the outer face of the bridge to which it permanently secures the main windingwheel. The outer end of the mainspring 11 is secured by a hook 10 or equivalent means to the barrel, which consists simply of a ring 16, located upon the inner face of the main wheel 17, which is staked upon the shoulder 18 of the barrel-arbor 19, the rear end of which extends through and bears in the winding-hub 9, which is mounted, as aforesaid, in the bridge 2, which therefore sup ports the rear end of the said arbor through the medium of the said hub. The main winding-wheel 8, which bears, as stated, upon the inner face of the bridge 2, meshes into a ratcheting-back pinion 21, also bearing upon the inner face of the bridge and secured to a vibrating stud 22, located in an elongated slot 23 in the bridge and having a washer-like head 24, which rides upon the outer face of the bridge. A spring 25, secured to the inner face of the bridge, exerts a constant effort to keep the vibrating pinion 22 in enga ement with the teeth of the wheel 8.

A c ick or dog 26, pivotally attached by a flat-headed stud 27 to the outer face of the bridge, has its outer end bent downward to form a finger 28, passing through an opening 29 in the bridge and engaging with the teeth of the wheel 8. The said click is formed with an arm 30, the outer end of which is bent downward to form a finger 31, which passes through a hole 32 in the rear movement-plate for engagement with a spring 33, secured to the inner face thereof. The ratchet-wheel 21 meshes into the stemwinding Wheel 22 in the usual manner.

As the main winding-wheel 8 and the winding-hub 9 are permanently mounted in the bridge 2, the removal of the same brings them with it and also the mainspring 10, the barrel 16, and the main wheel 17. This makes the mechanism of the watch easier to assemble and to take apart for cleaning and repair. In other words, under my improvement the bridge, the winding-hub, the main winding-wheel, the mainspring, the barrel, the main wheel, and the main arbor are handled as one piece after once being assembled. There is no positive connection between the bridge and winding-hub, on the one hand, and the main wheel and the barrel, on the other hand, beyond the main-spring, which, however, holds the parts together for all purposes of handling them as a unit.

I claim 1.. In a stem-winding and stem-setting watch, the combination with one of the movement-plates thereof, of a bridge, a main winding-wheel and a winding-hub mounted therein; and a washer applied to the outer face of the bridge and connected with the said hub for holding the Wheel and hub in place.

2. In a stem-winding and stem-setting watch, the combination with one of the movement-plates thereof, of a bridge, a winding-wheel bearing upon the inner face of the bridge, a winding-hub carrying the said wheel and projecting above the outer face of the bridge, and a relatively large washer applied to the projecting end of the hub for securing the hub and wheel to the bridge.

3. In a stem-winding and stem-setting watch, the combination with one of the movement-plates thereof, of a bridge, a winding-wheel bearing upon the inner face of the bridge and carried thereby, and a ratchetingback pinion also bearing upon the inner face of the said bridge and carried thereby and meshing into the said winding-wheel.

4. In a stem-winding and stein-setting watch, the combination with one of the movement-plates thereof, of a bridge, a main winding-wheel bearing upon the inner face of the bridge, a winding-hub carrying the said wheel and projecting above the outer face of the said bridge, a washer applied to the outer face of the bridge and connected with the said hub for holding the wheel and hub in place, and a ratcheting-back pinion also bearing upon the inner face of the said bridge and carried thereby and meshing into the said winding-wheel, whereby the main winding-wheel, the winding-hub and the ratcheting-back pinion are all mounted in and carried by the bridge.

In testimony whereof I have signed this specification in the presence of two subscrib ing witnesses.

WILSOY E. PORTER.

Witnesses:

FRED C. EARLE, CLARA L. WVEED.

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