US1467235A

US1467235A - Elastic band

Info

Publication number: US1467235A
Application number: US582416A
Authority: US
Inventors: Dekoff George
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-08-17
Filing date: 1922-08-17
Publication date: 1923-09-04
Anticipated expiration: 1940-09-04

Description

Patented Sept. 4, 1923.

lAtLZES GEORGE DEKOFF, OF CHICAGO, ILL INOT S.

ELASTIC BAND.

Application filed. August 17, 1922' Serial No.582,416.

T 0 (all whom it may concern:

Be it known that I, GEORGE Dnrrorr, a citizen of Russia, who has made application for naturalization asa citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois. have invented certain new and useful Improvements in Elastic Bands, of which the f0llowing is a specification.

This invention relates to endless elastic bands such as are extensively used for loosely clamping or binding together papers, pocket books and other articles, and has for its main object to provide an elastic band of more durable and permanent construction than similar articles now in use.

Bands of this character are for the most part made entirely of rubber or loosely woven fabric with rubber incorporated therein and, as is well known, are shortlived on account of deterioration of the rubber and loss of elasticity, especially when under tension. 1

The main object of the present invention is to provide an elastic band to serve the same general purposes as ordinary rubber bands, which shall be characterized by a greater degree of permanency and durability.

Another object is to provide a band of superior strength and facility of application and removal to the package or other article embraced thereby, as compared with the ordinary rubber band. 7

A still further object, attained by the preferred form of the invention herein shown and described, is to provide, in an all metal band, a. means for limiting the stretch of the elastic elements so as to pre vent danger of breakage or stretching the same beyond their elastic limit.

Other objects and attendant advantages of the invention will be apparent to persons skilled in the art as the same becomes better understood by reference to the accompanying drawings wherein I have illustrated a practical and preferred embodiment of the principle of the invention, and in which- Fig. 1 is a. perspective elevation of a package of sheets embraced and held together by my improved elastic band applied thereto;

Fig. 2 is a plan view of my improved band, showing the same stretched to the limit permitted by the stretch-limiting elements thereof; and 1 Fig. 3 is an enlarged fragmentary detail in longitudingal secti'onthrou'gh one of the coupling or connecting members and the cooperating end portions of the elastic and non-elastic elements of the band.

Referring to the drawing,'5' designates as an entirety each of a pair-of flexible nonelastic elements, 6 each of a pair of flexible and elastic elements, and 7 each of two pairs of coupling or connecting elements through which the elastic and non-elastic elements are united end to end. The non elastic elements 5 are shown inthe present instance as consisiting of sections ofwhat is known as head chain, 'comprising'a fine thread or wire 8 on which are rotatably mounted a group of hollow m al b 11 The elastic elements 6 consist of closely coiled steel tension springs, and the coupling or connecting members 7 COIlSlSt' of metal sleeves or ferrules. As clearly shown in Figure 3, the end ball 9 isentered in one end of the sleeve 7, and the corresponding end portion of'the latter is bent or swaged inwardly behind the said ballasshown at 10, to strongly and'effectively lock the ball 'within thesleeve' The end portion of the spring 6 is entered in the opposite end of the sleeve, and'the corresponding portion of the lattertis bent or. swaged inwardly between adjacent coils of the spring, as shown at 11, thereby effectively locking the spring to the sleeve. 7 The structure as thus'far described constitutes an elasticband embodying the broad venting destruction of the springs 6 through stretching them'beyond their elastic'limit. The means herein shown comprises a pair features of the invention; but in addition ,thereto I preferably employ means for predrel 15, the inner end of which is preien ably flanged over the end coil and the wire hooks 1st, as shown at 16.

In the idle or unstretched state of the' spring (3, the two hairpin members 12 are telescoped on each. other, with their closed ends lying against or closely adjacent to the outer ends of the bushings or mandrels 15. hen the band is stretched, the two members 12 slide outwardly relatively to each other, and when their closed ends come into contact with each other the extensile limit of the band is obviously reached; and this limit is safely within the elastic limit of the coil springs, so that no injury from overstretching can result to the latter. This fully stretched state of the band is illustrated in Fig. 2.

The specific embodiment of the invention herein shown and described possesses several advantages which give it a preferential character. For instance, the bead chain 5, forming the non-elastic sections of the band, rolls practically without friction over the sides and edges of the article embraced by the band, making it very easy of application and removal, and the round form of the coupling member 7 co operates to this end. Again, the internal stretch-limiting elements, being wholly housed within the springs and the coupling members are substantially invisible and protected from breakage or other injury. However, it is manifest that the particular form of the several elements, and the specific manner and means of coupling the elastic and nonelastic elements may be variously modified without departing from the spirit of the invention or sacrificing any of the advantages thereof, Hence, I reserve all such variations and modifications as fall within the spirit and purview of the appended claims.

I claim 1. An elastic band, comprising a pair of flexible non-elastic sections, a pair of elastic sections respectively interposed between the opposite ends of said non-elastic sections, and means for permanently coupling the meeting ends of said non-elastic and elastic sections.

2. An elastic band, comprising a pair of flexible non-elastic sections, a pair of elastic sections interposed between said nonelastic sections, means for coupling the meeting ends of said non-elastic and elastic sections, and means for limiting the stretch of said elastic sections.

3. A metal elastic band, comprising a pair oit chain sections, a pair of tensile coil spring sections respectively interposed between the opposite ends of said chain sections, and means for permanently coupling the meeting ends of said chain and spring sections.

at. A metal elastic band, comprising a pair of chain sections, a pair of tensile coil spring sections, means for coupling the vmeeting ends of said chain and spring sec tions, and means for limiting the stretch of said. spring sections.

5. A metal elastic band, comprising a pair of chain sections, a pair of tensile coil spring sections, means for coupling the meeting ends of said chain and spring sections, and means located within said spring sect-ions and coupling members for limitig the stretch of said spring sections.

6. A metal elastic band, comprising a pair of head chain sections, a pair of tensile coil spring sections, and means for joining the meeting ends of said sections comprising coupling sleeves each havingits ends embracing and swaged into gripping engagement with the meeting ends of said sections.

7. A metal elastic band, comprising a pair of chain sections, a pair of tensile coil spring sections, means for coupling the meeting ends of said chain and spring sections,

and stretch-limiting means comprising a pair of interlooped hairpin wires lying within said coil spring sections and anchored at their outer ends in said coupling means.

8. A metal elastic band, comprising a pair of head chain sections, a pair of tensile coil spring sections, means for joining the meet- .ing ends of said sections comprising cou. pling sleeves each having its ends embracing and swa'ged into gripping engagement with the meeting ends of said sections, and stretch-limiting means comprising a pair of interlooped hairpin wires lying within said coil spring sect-ions and anchored at their outer ends in said coupling sleeves.

GEORGE DEKOFF.