US335455A - Benjamin feank hope - Google Patents

Description

(No Model.)

B. F. HOPE.

WATCH BASE PENDANT.

No. 335,455. Patented Feb. 2, 1886.

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UNITED STATES PATENT @rrrcn.

BENJAMIN FRANK HOPE, OF SAG HARBOR, NEXV YORK.

WATCH-CASE PENDANT.

SZPECIFZCATION forming part of Letters Patent No, 335,455, dated February 2, 1886.

Application filed June 4, 1885.

To aZZ whom it may concern.-

Beit known that I, BENJAMIN FRANK Horn, a citizen of the United States, residing at Sag Harbor, in the county of Suffolk and State of New York, have invented new and useful Improvements in atch-Cases, of which the following is a specification.

This invention relates to watclrcascs, and has for its object to provide novel means for connecting the winding-stem with the pendant, whereby such stem can be inserted into position from the interior of the case-center and be retained without the necessity of employing screw -threads and screws for such purpose, thereby materially reducin g the cost of manufacture.

The invention consists, essentially, in a split tube having a collar at its inner end and inserted into the pendant from the inside of the case-center, so that the collar bears against the latter, in combination with a winding-stem passing through the tube to connect with the winding mechanism of the time-1novement, whereby the tube is so firmly and securely confined in place that it cannot be pulled out of the case by any force, and I avoid the necessity of employing screw-threads and screws for confining the split tube in the pendant.

The invention is illustrated in the accompa nying drawings, in which Figure 1 is a plan View of part of an open-face watch witlr the pendant in section, showing my invention applied thereto; Fig. 2, a similar view of a hunting-case watch embodying my invention; Fig.

8, a detached sectional view of the split tube with the winding-stem therein, and Fig. i a side elevation of the tube.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, reference being made to the drawings, where the numeral 1 indicates a watch-case center, 2 the time-movement, and 3 the hollow pendant. The windingstem 4 is contained within a tapering tube, 5, having one end split or divided, as at 6, to form spring-fingers for frictionally engaging and detaining the stem, and provided at its other end with a collar, 7, constituting a laterally-projecting annular shoulder.

The tube is inserted into the pendant from the inside of the case-center, so that the collar Serial No. 167,639. (X0 model.)

bears against the inner surface thereof around the inner end of the opening through the pendant, and the winding-stem, which has a shoulder, 8, intermediate its ends, is inserted into the tube through its inner shoulder end, the outer end of the stem being screw-threaded or otherwise constructed to connect with the winding-crown 9, as ordinarily practiced.

The interior of the tube is provided with an annular ledge or flange, 10, for the purpose of preventing the complete withdrawal of the stem, while permitting it to slide longitudinally and also rotate axially.

In an open-face watch the collar at the inner end of the split tube bears against the movement-holding ring or case, as in Fig. 1, which thereby serves as an abutment to the tube to prevent its inward movement when the winding-stem is pushed inwardly after having been drawn out by the crown; but in a huntingcase watch the collar on the tube bears upon the case-spring 11, which serves as an abutment to the tube in a manner like or similar to the movement-holding ring or case.

In a hunting-case watch it is of course necessary to insert the split tube and windingstem into the pendant from the inside of the case before the case-spring is secured in place.

Heretofore in sten1-winding watches a split tube has been used for securing the windingstem; but the tube has either been screwed into the pendant or held by a screw passing transversely through the pendant and entering an annular groove in the head or outer end of the split tube. These constructions increase the cost of manufacture, and, besides, are sub ject to the objection that they are liable to be pulled out of the pendant by undue pressure in drawing the stem outward.

In my invention the collar at the inner end of the tube abuts against the inside of the casecenter around the inner end of the opening through the pendant, and consequently the tube cannot be pulled outward by excessive pressure in drawing the stem outward.

Having thus described my invention, what I claim is- 1. The combination, with a watch-case having a hollow pendant, of a spring-stem-detaining tube having ashoulder at its inner end bearing against the inside of the case-center about oriaround the inner end of the opening through the pendant, substantially as described.

2. The combination, with a Watch-case having a hollow pendant, of a split tube having a shoulder at its inner end bearing against the inside of the case-center, and a stem sliding in the tube, substantially as described.

3. The combination, with a watch-case having a hollow pendant, of a split tube having an interior ledge or flange, and provided at its inner end with a shoulder bearing against the inside of the case-center, and a slidingstem having a shoulder intermediate its ends and adapted to strike said ledge or flange, sub- I 5 stantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

BENJ. FRANK HOPE. f Witnesses:

GILBERT H. COOPER, SAMUEL KIP, Jr.

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