US705703A - Stem-winding watch. - Google Patents

Description

N0. 705,703. Patented July 29, I902.

W. E. PORTER.

STEM WINDING WATCH.

(Application filed Jan. 22, 19021 (In llodel.)

ATTORNEYS INVENTOH WITNESSES UNITED STATES PATENT OFFICE.

WILSON E. PORTER, OF NE'W HAVEN, CONNECTICUT, ASSIGNOR TO THE NEW HAVEN CLOCK COMPANY, OF NEW' HAVEN, CONNECTICUT, A COR-- POItATION OF CONNECTICUT.

STEM-WINDENG WATCH.

SPECIFICATION forming part of Letters Patent No. 705,703, dated July 29, 1902.

Application filed January 22,1902- Serial No. 90,789. (No model.)

To all whom it may concern.-

Be it known that I, WILsoN E. PORTER, of the city and county of New Haven and State of Connecticut, have invented a new and use ful Improvement in Stem-Vinding atches,

of which the following is a full, clear, and exact description when taken in connection with theaccompanying drawings, which form a part thereof, and in which- Figure 1 represents atop View of the movement-plate and associated parts; Fig. 2, a similar View, the intermediate wheel being shown as disengaged from the winding-train; Fig. 3, a bottom View of the plate, showing parts in the same position indicated in Fig.

1; and Fig. 4-, an enlarged detail view in elevation of the intermediate wheel and its post.

In all figures similar letters of reference represent like parts.

This invention relates to an improvement in stem-winding watches, and has for its object the production of a simple, durable, and effective construction the parts of which are easily assembled and easily separated, while 2 5 efficient in operation.

The invention consists of the details of construction and combination of parts set forth and claimed hereinafter.

Referring to the drawings for a more particular description, the parts designated by the letter A represent the case, B the pendant attached thereto, and C the rotary stem of the pendant, to which is secured the crown D. p

E represents the movement or supporting plate, upon which is mounted the wheel F of the winding-train. In the movement-plate E is formed a slot G, extending to the periphery of the plate, so that one end 9 is open.

An intermediate wheel H is mounted on one end of the post J, on the opposite end of which is carried a flanged head or enlargement K. The diameter of the post J is such as to fit within the slot Gr, while the flanged head and the intermediate wheel H overlap the edges of the slot, so as to prevent the lon-- gitudinal withdrawal of the post J. A light spring L is also mounted on the plate E, so that its free end extends across the mouth or open end g of the slot G. The other parts of the watch may be of any suitable or wellknown construction.

In assembling the watch the spring L is forced to one side to open the mouth 9 of the slot Gr, and the post J is inserted into the slot, whereupon the spring L will bear upon the intermediate wheel H, forcing the post to the closed end of the slot, in which position the intermediate wheel II will engage the wheel F of the winding-train and at the same time be engaged by a pinion M on the rotary stem C. The spring L being yielding allows the intermediate wheel H to be moved, under pressure, toward the open end of the slot, and upon the backward movement of the rotary stem C such pressure is exerted on the inter-- mediate wheel II and the wheel is withdrawn from engagement with the winding-train I The slot G is of suflicientlength to permit the intermediate wheel H to be moved toward its open end and disengaged from the wheel F of the winding-train without'the post J being forced entirely out of the slot. The spring Ii performs the double function of retaining the post .I within the slot and also holding the intermediate wheel II normally in engagement with the wheel F of the winding-train.

Having now described my invention, which may vary somewhat without departing from the spirit thereof, what I claim, and desire to secure by Letters Patent, is-

1. In a watch, the combination with the movement or supporting plate, having a slot extending to its periphery; of a wheel mounted on a post, which post is adapted to fit within said slot, and is prevented from longitudinal withdrawal therefrom; and a spring closing the open end of said slot, and normally tending to force said post toward the closed end of said slot, substantially as described. 0

2. In awatoh, the combination Witha movement or supporting plate, having a slot ex- 2 vomoe tending to its periphery; of a Winding-train with said winding-train, substantially as demounted on said plate; a rotary stem; 2 Wheel scribed. w mounted on a, post, and when in position ae- In Witness whereof I have hereunto set my mated by said stem, said post being adapted hand on the 18th day of January, 1902.

5 to fit; within said slot, and being prevented WILSON E. PORTER.

from longitudinal Withdrawal therefrom; and

Witnesses:

a spring closing the open end of said slot, and EUGENE CARTIER, yieldingiy holding said Wheel in engagement M. E. SMITH.

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