US2283018A

US2283018A - Separable fastener

Info

Publication number: US2283018A
Application number: US335223A
Authority: US
Inventors: Seltzer Ervin
Original assignee: SWAN FASTENER CORP
Current assignee: SWAN FASTENER Corp
Priority date: 1940-05-15
Filing date: 1940-05-15
Publication date: 1942-05-12
Anticipated expiration: 1959-05-12

Description

y 1942 E. SELTZER I 1 2,283,018

SEPARABLE FASTENER Filed May 15, 19'40 ATTOR Patented May 12, 1942 SEPARABLE FASTENER Ervin Seltzer, Philadelphia, Pa., assignor to Swan J Y Fastener Corporation poration of New York New York, N. Y., a cor- Application May 15, 1940, Serial No. 335,223

8 Claims.

This invention relates to improvements in separable fasteners.

Its' object is to improve upon such devices as have been available heretofore and to provide a simple, inexpensive construction which can be easily made with a saving of material and with other advantages which will be pointed out hereinafter;

I will describe my invention in the following specification and point out its novel features in appended claims.

Referring to the drawing,

Fig. .1 is a sectional plan view of a separable plan view of a separable fastener which is made according to and embodies my invention. The section in this figure is taken on.the line 'l--l of Fig. 2;

Fig. 2 is a sectional end elevation of the parts shown in Fig. l; s

Fig. 3 is an end elevation of one of the parts shown in Fig. 1;

Fig. 4 is an elevation of a wire from which the locking member is made, illustrating apart of the method of making it;

Fig. 5 is an end elevation of a locking member of a modified construction;

Figs. 6 and 7 are end elevationsat right angles to each other of another form of construction.

10 designates a piece of wire, cut to a desired length, illustrated by A-B in Fig. 4. The first step in making a locking member according to this invention is to bend back a portion of this wire upon itself to form an enlarged mass of metal at one end, as shown at H (Fig. 4) During this step it is desirable to form a bend l2 near the other end of the wire, the bends ll and I2 being in the same plane. The bent over end H is then pressed between dies to form a cone-shaped protuberance l3 at one side of the wire and at substantiall right angles to its axis;

At the same time a pocket I 4 is impressed in the base of the cone.

I5 designates a flexible member, such as a cord. The locking members are affixed to this cord at regularly spaced intervals by bending the wire around it, as shown at IS, in a plane at right angles to the axis of the cones l3, and offset from the original axis of the wire on the same side of the wire as is the cone l3, leaving a short straight portion l1 between the cone and the cord.

This cord and the fasteners are then affixed to a tape 20 by stitches I8 which pass around the cord and through the tape and by other stitches l9 which pass around the portion ll of each fastener and through the tape. The cord is ing of the fasteners. as shown at IGB, to form an additional element preferably spaced from 'an'edg'e 2l' of the tapeat such a distance as to bring this edge in aline ment with a line passing through the center of the cones so that when the device is 'c10sed this edge 2| will'abut an edge 2|A of a cooperating A novel feature of this embed the portions; ll of the fasteners in the tape. One way of-accomplishingthis-is to use a transversely corrugated tape, as shown at 22 in Fig. 3, with its corrugations spaced to correspond to the distance between the fasteners and insert the parts ll of the fasteners in the valleys of the corrugation. This has the advantage of reducing the thickness of the device, makes possible the use of a thinner separating slide, (not shown) and minimizes the wear caused by the movement of the slide.

The fasteners shown in Figs. 1 and 2 have to be made in lefts and rights, but if it is desired to make them all alike, they may be constructed as shown in Fig. 5, with the cord l5 symmetrically disposed'in relation to the protuberances l3.

In Figs. 6 and 7 a loop ISA is shown passing entirely around the cord l5. The offset portion of such a loop may be used to facilitate the spac- The wire may be extended,

which may be stitched to the tape.

A separable fastener constructed according to this invention can be made smaller than those heretofore available and because of its small size and light weight is adaptable for use on light goods, for which use former devices of this type are not adaptable. Only a small amount of the metal of the locking member is exposed on top and this enhances the appearance of the fas-. tener.

Another great advantage of this invention is that the locking members may be formed of ordinary round wire and there is no waste, thus effecting a saving of material.

Several modifications of construction have been illustrated and described in order to show that s 2..A locking element for separable fasteners comprising a piece of wire having a hollow en- OFFICE 15 invention is to partially larged cone-shaped protuberance at one of its ends and a bend in the other end of the wire at right angles to said protuberance.

3. A separable fastener comprising a pair of cords, alternately spaced elements on said cords,

"each element comprising a piece of wire having one of its ends bent around one of the cords, and an integral hollow protuberance on the other end of the wire =substantially parallel with said cord. 4. A separable fastener comprising a pair of cords, alternately spaced elements on said cords. each element comprising a piece of wire having one of its ends bent around one of the cords, and its other end enlarged and formed into a coneshaped protuberance with its axis substantially parallel with said cord, the base of said cone being constructed to form a pocket for receiving the protuberance of an adjacent fastener.

5. A separable fastener-comprising a pair of tapes, cords adjacent the edges of said tapes,

alternately spaced elements on said cords. each element comprising a piece of wire having one of its ends bent around one of the cords, and a hollow protuberance on the other end of the wire substantially parallel with said cord, said cords being aflixed to the tapes by stitches.

6. A separable fastener comprising a pair of tapes, cords adjacent the edges of said tapes, alternately spaced elements on said cords, each element comprising a piece of wire having one of its ends bent around one of the cords, and a hollow protuberance on the other end of the wire substantially parallel with said cord, said cords being affixed to the tapes by stitches passing around the cords and through the tapes.

'7. A separable fastener comprising a pair of tapes, cords adjacent the edges of said tapes, alternately spaced elements. on said cords, each element comprising a piece of wire having one of its ends bent around one of the cords, and a hollow protuberance on the other end of the wire substantially parallel with said cord, said cords being affixed to the tapes by stitches passing around the cords and through the tapes and by other stitches passing around the wires and. through the tapes.

8. A separable fastener comprising a pair of transversely corrugated tapes, cords adjacent the edges of the tapes, alternately spaced elements on said cords, each element comprisinga piece of wire bent around one of the cords, and a hollow protuberance on the other end of the wire substantially parallelwith said cord, said wires be-- ing partially embedded in the corrugations of the tapes and the cords being affixedto the tapes by stitches.

ERVIN SELTZ ER;