US2580769A

US2580769A - Bracelet clasp

Info

Publication number: US2580769A
Application number: US66652A
Authority: US
Inventors: Abbot A Harman
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-12-22
Filing date: 1948-12-22
Publication date: 1952-01-01
Anticipated expiration: 1969-01-01

Description

dan. 1, 1952 A. A. HARMAN BRACELET CLASPy Filed Dec. 22, 1948 Inven tor Attorney Patented Jan. 1, 1952 Abbot A. Harman, New York, N. Y.

Application December 22, 1948, serial No. 66,652

4 claims. (ci. 24-23m This invention relates to clasps.

An object of this invention is to provide a clasp designed for use in a bracelet or other similar article, which will firmly lock the ends `of the article together, and at the saine time permit the ends to be readily disconnected.

Another object of this invention is to provide a clasp which can be used on a heavy bracelet, necklace or other article of jewelry, for rmly locking the article in applied position.

A further object of this invention is to provide a clasp which includes a double lock structure so that pressing of one part of the lock structure will not accidentally release the clasp.

A further object of this invention is to provide a clasp embodying means whereby the locking elements cannot be bent, strained or otherwise injured.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawing and specification, and then more particularly pointed out in the appended claims.

In the drawing,

Figure 1 is a detail end elevation of a clasp constructed according to an embodiment of this invention,

Figure 2 is a plan view of the device,

Figure 3 is a sectional view taken on the line 3-3 of Figure 2,

Figure 4 is a transverse sectional View similar to Figure 3 showing the clasp members in exploded position.

Referring to the drawing, the numerals I and II designate generally a pair of complementary bodies adapted to be secured by suitable fastening means as will be hereinafter described, to the ends of a flexible member such asa chain, bracelet or the like. As herein shown, the bodies I0 and II are of semi-circular configuration and the body Il has fixed to the inner edgethereof a pair of cylindrical keepers or barrels I2 and I3.

The keepers or barrels I2 and I3 are mounted in a transversely arcuate groove or channel I4 which is formed in the body I0. The body II has fixed in a transversely arcuate groove I5 thereof a cylindrical barrel I6 forming a housing having a pair of spring-pressed locking bolts or pins II. These bolts or pins Il are of like construction and each is formed at its outer end with aniangularly disposed bill I8 which when in extended and locking position is adapted to engagejj-in an adjacent inner end of a keeper. The bolts or pins II are each provided with a longitudinally disposed keyway or channel I9 within which a key 2'0 is adapted to loosely engage. In pra'cticleztheA key 20 is pressed inwardly from the upper sidev of the barrel I6. p

. A spring 2I is disposed between the innerends of the bolts I'I and constantly urges the boltsl Il outwardly to locking position. As shown in Figure 3, the opposite ends of the barrel I6 are; also inclined as indicated at 22 on substantially the' same angle of inclination of the bills I8. i

The keepers I2 and I3 have slidably disposed therein

bolt releasing pins

23 and 24 respectively. The bolt 23 is provided with a channel or groove 25 within which a key 26 struck from the barrel I2 is adapted to loosely engage. The key 26 provides a means coacting with the channel 25 in limiting the outward movement of the releasing pin 23. The pin 24 is also formed with a lengthwise channel or groove 21 within which a key 28 struck from the barrel I3 is adapted to loosely engage. When the bolts I'I are in locking position these bolts will force the releasing

pins

23 and 24 outwardly and the two clasp forming bodies I0 and I I will be held against release when only one of the releasing pins is moved inwardly.

The clasp hereinbefore described is designed particularly for use on a relatively heavy bracelet, chain or the like, and will provide a secure and safety means for securing the ends of the bracelet or chain together. The barrels I2, I3 and I6 may be secured as by soldering or other fastening means in the grooves of the bodies I0 and II or if desired may be formed integral with these bodies.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all Variations falling within the purview of the appended claims.

What I claim is:

1. A clasp comprising a pair of complementary parts, a centrally disposed barrel carried by one of said parts having the ends thereof spaced inwardly from the adjacent margins of said one part, a pair of outer barrels carried by the other of said parts, said outer barrels being disposed in axial alignment with said central barrel when said parts are disposed in face abutting relation, a pair of oppositely disposed locking bolts carried by said central barrel, a spring between said bolts constantly urging the latter outwardly to locking position, and releasing pins slidably carried by said pair of barrels adapted to confront said bolts whereby inward movement of said releasing pins will move said bolts inwardly to released position.

2. A clasp comprising a pair of body members adapted to be disposed when in locked position in face abutting position, one of said members including a pair of aligned spaced apart keepers, the other of said members including a barrel engageable between the inner ends of said keepers, a pair of oppositely disposed bolts slidably carried by said barrel, a spring between said bolts constantly urging the latter outwardly to locking position, means limiting the outward movement of said bolts, and a pair of releasing pins slidably carried by said .keepers adapted to confront said bolts for moving the latter inwardly of said barrel to released position.

3. A clasp for connection to the opposite ends of a chain or similar flexible article of jewelry, comprising a pair of body members, each member being formed with a transversely arcuate channel, a pair of cylindrical keepers fixed in the channel of one member and projecting laterally therefrom, a cylindrical bolt housing xed in the channel of the other member and projecting f 4 holding said bolts against rotation in said housing, and bolt releasing pins slidably disposed in said keepers.

4. A clasp for connection to the opposite ends of a chain or similar article of jewelry, comprising a pair of body members adapted to be disposed in face abutting position when locked together, a pair of aligned spaced apart keepers on one of said body members. a barrel engageable between the inner ends of said keepers and carried by the other of said body members, a pair of oppositely disposed bolts slidably carried by said barrel, interengaging means on said barrel and said bolts limiting the outward movement of the latter, a spring between said bolts constantly urging the latter outwardly to locking position, a releasing pin slidably carried by each of said y keepers adapted to confront said bolts for moving the latter inwardly of said barrel to released position, and interengaging means on each of said keepers and on the related releasing pins limiting the inward and outward movement of said releasing pins.

ABBOT A. HARMAN.

No references cited.