US1258919A - Safety-clasp for bracelets. - Google Patents

Description

l. R. LEDERER. SAFETY CLASP FOB BRACELETS.

APPLICATION FILED JULY 2, 1917.

1 258 91 9., Patented Mar. 12, 1918.

IRVING B. LEDERER, OF PROVIDENCE, RHODE ISLAND.

SAFETY-CLASP FOB. BRACELETS.

Specification of Letters Patent.

Patented Mar. 12, 19118.

Application filed July 2, 1917. Serial No. 178,129.

To all whom it may concern.

Be it known that I, IRVING R. Lnonnnn, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Safety- Clasps for Bracelets, of which the following is a specification.

My invention relates to bracelets and more particularly to an attaching means for the end of the adjustable loop thereof. The type of bracelets in which the invention is of greatest utility is the watch braceletor wristlet.

The essential objects of my invention are firmness of engagement with the parts embraced by the device; facility of application and removal of the same; sightliness, simplicity, and inexpensiveness.

To the above ends essentially my invention consists of such parts, and combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification,

Figures 1 and 2 are rear and plan elevations respectively of a watch bracelet embodying my invention,

Fig. 3, an elevation of the rear face of the clasp as applied to a bracelet,

Fig. 4, a similar elevation of the same removed from the bracelet,

Figs. 5 and 6. sections of the same taken on line 66 of Fig. 4:, showing the clasp in closed and open positions respectively, and

Fig. 7, a section on line 77 of Fig. 3.

Like reference characters indicate like parts throughout the views.

In the drawings 9 represents a watch or watch holder with lateral attaching loops 10 thereon. A strap or ribbon 11, in this instance of textile material, has a fixed loop 13 at one end, engaging one member 10; and, on the other end, a small fixed loop or fold 15. The strap or body 11 is provided further with an adjustable loop 17 intermediate its length, formed by passing the strap 11 through the second member 10. The inside section 19 of this loop carries the fold 15 upon its end. By lengthening or shortening the loop 17 the bracelet body may be accommodated to any size wrist. To facilitate such adjustment and effect the end quickly, and without danger of subsequent slipping the following means are incorporated in the described structure.

A clasp 20 comprises a rounded web 21 connecting integrally the ends of a front.- plate 22 and back plate 23. The web and plates are not only of one piece but are composed of resilient material; and normally the plates diverge from each other as they recede from the web, as shown in Fig. 6. The resilient character of these parts render the plates compressible at their outer ends. Upon the end of the plate or arm 23 is an inwardly directed rounded flange 25; and upon the corresponding end of the plate or arm 22 is a resilient lip 26 oppositely directed to the flange 25 and adapted to overlap and frictionally engage the latter when the plates are compressed and snapped into engaged position. A projection 27 on the lip serves as a finger piece to release the engaged parts. The plate 23 has vertical slits 28 to permit to be drawn up from the material a. lon itudinally disposed resilient bridge or clamping bar 30 supported by inclined end le s 31. A margin of the plate 23 is cut away to form an irregular opening 32 into which extend oppositely directed longitudinally disposed flat fingers 34 terminating in inwardly directed points 35.

The member 20 is thus applied to the strap. The fingers 341 are inserted into the top and bottom of the loop 15 and the disengaged plates 22 and 23 loosely embrace the strap 11; in which position the member 20 with the portion 19 of the loop 17 is movable longitudinally of the strap 11. When the loop 17 has reached its required length the member 20 is fastened by manually compressing the plates 22 and 23 into parallelism while the lip 26 snaps over the flange 25. The member 30 is thus pressed into or against the material of the strap or strip 11 so as to insure the member 20 against movement longitudinally of the latter.

I claim:

1. A fastening for the purpose described, comprising two spring plates rigidly connected at one end and adapted to embrace a band, the free ends of said plates having curved overhanging lips and one of said plates having at one edge oppositely disposed fiat spaced-apart fingers integral therewith, said fingers adapted to engage in the top and bottom of a loop of a band, and transverse means adjacent said fingers depressible against a strap when the plates are brought into parallelism.

2. A fastening for the purpose described, comprising tWo spring plates rigidly con nected at one end and adapted to embrace a band, curved overlapping lips on the free ends of said plates, oppositely-disposed spa ced-apart flat fingers integral with the top and bottom ofone oi'the plates and extending inwardly from opposite edges of said plate With their adjacent ends free and unattached, one of said plates having a slot, and a cooperating coincident bridge, said lips being insertible in the top and bottom of a loop of the band.

3. A fastening for the purpose described, comprising tWo spring plates rigidly connected at one end and adapted to embrace a band, curved overlapping lips on the free ends ofsa-id plates, oppositely-disposed flat fingers integral With the top and bottom of one-of the plates, one of said plates having a slot, and a cooperating coincident bridge, one of said lips having a projection to serve as a finger-piece. H

In testimony whereof I have affixed my signature. I e

IRVING R. LEDERER;

Gopies of this patent may be obtained for five cents each, by addressing the flommissioner of'Petents,

Washington, D. G.

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