US449255A

US449255A - Watch-bow fastener

Info

Publication number: US449255A
Authority: US
Publication date: 1891-03-31
Anticipated expiration: 1908-03-31

Description

(No Model.)

B. KLAHN.

WATCH BOW FASTENER. No. 449,255. Patented Mar. 31,1891.

wmv5ss5s; //v VENTOR A TTOHNE YS UNITE XSTATES PATENT OFFICE.

EMIL hLAllX, OF JERSEY CITY, NEW JERSEY, ASSIGNOR 0 THE KEYSTONE IYATCII CASE COMPANY, OI PHILADELPHIA, PENNSYLVANIA.

WATCH-BOW FASTENER.

SPECIFICATION forming part of Letters Patent No. 449,255, dated March 31, 1891.

Application filed January 2, 1891. gerial No. 376,536. No model.)

To all who/n. z'l' 17mg concern:

Be it known that I, EMIL KLAHN, a citizen of the United Statcs,and a residentof Jersey Qity Heights, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Devices for Fastening lVatch-Bows, of which the following is a specification.

My invention relates to an improved bowfastening device for watch-cases; and it consists of certain improvements which are fully set forth and described hereinafter, and which are shown in the accompanying drawings.

In carrying out my invention I employ a watch-case pendant provided with holes or apertures and a bow having its ends, which are inserted in these apertures of the pendant, provided with locking-heads, which are journaled in an eccentric position upon the ends of the bow. hen the bow ends are inserted in the apertures, these heads are turned so as not to prevent the passage of the bow ends through the apertures, and are then turned out so as to project over the apertures upon the inside of the pendant, and thus lock the bow ends in place. These heads may be carried upon pins or screws passing through the ends of the bow, as is hereinafter set forth.

In the drawings, Figure 1 represents a frontview of a watch-pendant with a bow attached to the same by means of myimproved fastening device, and Fig. 2 shows the pendant in vertical section and the bow partially in section.

Similar letters of reference indicate corresponding parts.

A in the drawings represents a watch, the pendant B of which is provided with two holes or apertures l) I), diametricallyopposite each other. The how 0 is of an annular shape with a part out out, as usual. The SO fOllllGtl ends of the how are provided with screw holes terminating in the flat surfaces of the ends.

D Dare screws or pins having eccentricheads cl 6?, which are screwed or pushed into the holes of the bow ends, so that the eccentric-heads are in face with the flat surfaces of the bow ends.

The bow is fastened to the pendant in the following manner: The screws or pins D are screwed or pushed through the holes of the bow ends until both eccentric-heads of the same come in contact, or nearly so, with the surfaces of the ends and without projecting beyond the ends laterally, as shown at the left-hand side of Fig. 3. The ends of the how are then bent apart, so that they can pass over the surface of the watch-pendant, and are pressed into the holes of the said pend ant. \Vhen thishas been done, the eccentricheads (I (Z are turned until they have such a position that they overlap the lower borders of the holes I) in the pendant B, as shown at the right-hand side of Fig. 2. The bow is thus kept in a reliable position on the pondant as the heads press against the inner surfaces of the pendant and do not allow the bow to be removed therefrom unless the heads (Z (Z are turned back so that they do not project laterally beyond the ends of the bow. \Vhen turned into position for locking the bow in place. the pins or screws may be soldered to the bow or otherwise secured against movement.

The free ends of the screws or pins may be cutoff and provided with notches, as shown in Fig. 1, so that they can he turned by means of a screw-driver when it shall be necessary to put the heads inside of the pendant into another position.

The chief feature of the invention consists of the heads d d, journaled eccentrically upon the ends of the bow, so that they may be turned so as not to project laterally when the bow ends are inserted, but maybe turned out when the bow is in place, so as to project over the apertures of the pendant on the inside, and thus lock the bow ends in place.

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

1. A device for fastening watch-bows, consisting of a hollow pendant of a watch-case with two holes, a bow having screw-holes terminating in the surfaces of its ends, and screws or pins with eccentric-heads screwed or pushed into the holes of the bow, which heads, when turned, press against the inner bordersof the holes in the.neck,substaritially said apertures on the inside, subsi'aniinll'yas to as and for the pnrpose's'pecified. i and for the purpose specified.

2. In a watch-bow fastener, the combina- Signed at New York,in the county of New tion, with the pendant; of a watch-case hav- York and State of New York, this 22d day 5 ing apertures upon opposite sides, abowflrnd of November, A. D. 1890.

heads jonrnaled in an eccentric position upon EMIL KLAHN. the ends of said bow, adapted to be turned, \Vitnesses: v

when the bow ends are inserted in the aper- JOHN J. HOGAN,

tures of the pendant, so as to project beyond CHARLES KARP.