US1096304A - Stem winding and setting watch. - Google Patents

Description

G. E. HUNTER.

STEM WINDING AND SETTING WATCH.

APPLICATION FILED JULY 23, 1912.

1,096, 304 Patented May 12, 1914.

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UNITED STATES PATENT OFFICE.

GEORGE E. HUNTER, OF ELGIN, ILLINOIS, ASSIGNOR T0 ELGIN NATIONAL WATCH COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STEM WINDING AND SETTING WATCH.

To all whom it may concern:

Be it known that I, GEORGE E. HUNTER, a citizen of the United States, residing at Elgin, in the county of Kane, State of Illinois, have invented certain new and useful mprovements in Stem WVinding and Setting WVatches, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

My invention relates to improvements in watches, and While applicable to all pendant setting watches, has been more especially designed for use in connection with the so called locket watches, in which the bow of the case or its equivalent is attached directly to the winding and setting stem.

The primary object of the invention is to lock the stem securely in the winding posi tion in such a manner as to prevent any strain put upon the bow from being transferred to the winding stem, except when it is desired to set the hands. In such event, means are provided to release the stem.

The invention, therefore, consists in the matters hereinafter described and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a front view in section of a portion of a watch embodying my invention; Fig. 2 is a cross section of the same; Fig. 3 is a detail plan view of the forked spring embracing the winding stem sleeve; and Fig. 4: is a detail view of the locking device for the forked spring.

In these drawings, 1 represents the watch case, 2 the winding and setting stem, which may be connected with the winding and setting mechanism in any well known manner. At its upper end the stem has a screwthread terminal, to which the how 2 is sccured.

A loose sleeve 4 is arranged on the winding stem and is confined longitudinally between the collar 5 and the bow 3. Embracing loosely the reduced upper portion of the sleeve 1 is the opening 6 formed in the forks 7 of the spring 8 secured to the watch case. The sleeve 4 has an abrupt taper 8 connecting its reduced portion with the enlarged lower portion, and when the stem is drawn out to set the watch, this taper spreads the prongs of the spring, and holds them apart.

The flange on the inner end of sleeve a Specification of Letters Patent.

Application filed July 23, 1912.

Patented May 12, 1914.

Serial No. 711,132.

prevents drawing out the spring too far. In order to prevent accidental drawing out of the stem by strain on the how, I have provided a locking device to prevent the prongs of the spring 8 from spreading. This consists of the flat spring 10, provided with two upwardly projecting lugs 11, 11, which embrace the ends of the forks or prongs 7, and. hold them in normal position against the outward pressure of the sleeve. A small pin 12 is provided on the spring 10 for the purpose of bringing the two ends of the springs 8 and 10 into alincment for locking. The push pin 13 extending through to the outside of the case, provides means for disengaging the lugs 11 from the forks 7, thus permitting the latter to spread when the stem is drawn out.

The mode of operation is as follows, the stem being shown in winding position. It being desired to set the watch, the push pin 13 is forced in to release the lugs 11, from the prongs 7 on the spring 8. The stem can be then drawn out by pulling on the bow 3, when the stem can be turned to set the hands. To return to winding position, it is only necessary to push in on the bow. This allows the prongs of the spring 8 to come together again, and they are at once locked by the lugs 11 of the spring 10.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A stem-winding watch comprising a rotatable winding stem having at its outer end means for suspending the watch, said stem being adapted to be moved longitudinally, a catch member for holding said stem from outward movement and yieldable laterally to permit such movement of the stem, and a manually operated locking device for holding the catch from yielding to release the stem.

2. A stem-winding watch comprising a rotatable winding stem having at its outer end means for suspending the watch, a forked catch member embracing the stem and adapted to be spread by the upward movement of the stem, and a locking device engaging the sides of the forks to prevent their spreading.

3. A stem-winding watch comprising a rotatable winding stem, having at its outer end means for suspending the watch, a sleeve mounted on said stem having an enlarged and a reduced portion, a forked catch mem- In testimony whereof, I a'llix my signature, ber embraclng the sleeve and adapted to be 111 the presence of two \vltnesses. spread by the enlarged portion of the sleeve "P a 1n the upward movement of the stem, and a GEORGE HUNTER vertically moving locking device to engage v' itnesses: the sides of the fork to prevent such spreuct J. A. LOGAN, ing. GEO. B. UNDERWooD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. 0.

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