US2078889A - Slide fastener - Google Patents

Description

. Pril 2,7, 1937 J. P. BENNETT ET A1; 2,078,889

SLIDE FASTENER Filed May 23, 1935 NVENTO @im RB'eme t.

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Patented Apr. 27, 1937 UNITED STATES PATENT oFFicE Birmingham,

England, assignors to Hookless Fastener Company, a corporation of.Pennsyl yania Application May 23, 1935, Serial No. 23,068 In Great Britain June 13, 1934 3 claims.

This invention relates to slide fasteners of the kind comprising two exible stringers having cooperating series of fastener elements mounted Athereon and adapted to be yconnected and disconnected by a slider. More particularly, the invention is concerned with a separable end connection for such fasteners, and means for strengthening the portions of the fastener stringers adjacent the engaging parts of the end connection.

The ends of the Stringer and the parts of the separable end connection are repeatedly submitted to heavy stresses throughout their entire period of use in a garment. Such stresses may result in loosening of the parts of the separable end connection on the fastener stringers or in the tearing of the tapes, making it dimcult or impossible to operate the fastener in the intended manner.

Attempts have been made to. overcome these dimculties by riveting extension portions of the metal parts of the s parable end connection to the mounting tapes, and to the article to which the fastener is connected. Such, fittings, however, are unsightly in appearance in some garments, they are inflexible, and are troublesome when machine sewing the fastener to garments, as the sewing has to be stopped short on reaching the projecting portion of the tting and an additional operation of inserting a taching the end of the fastener to is often necessary.

The object of our invention therefore `is to provide an improved construction in which the above diflculties will be overcome and which will enable a fastener of the separable end type to be securely attached to the garment in a neat and efficient manner.

In the accompanying drawing, we have shown for purposes of illustration, one embodiment which our invention may assume in practice. In this drawing:

Fig. 1 is axperspective view of the separated ends of a slide fastener made in accordance with our invention; and

Fig. 2 is a. cross-section on line 2-2 of Fig. 1.

In Fig. 1 the numerals I and 2 designate two fastener stringers or tapes having beaded edges 3 and t, respectively, to which are secured the cooperating series of fastener elements 6, I. 'I'hese series of fastener elements terminate short of the ends of the separable end connection.

The separable end connection may be of any known form having engaging parts 8 and 9. The part 8 is termed a socket member and in rivet for atthe garment (Cl. 2li-205) the present instance is formed up of sheet metal to provide a socket open at its upper end and opening at its front side through the slot II). It

is closed at 'its bottom end by the inturned sheet metal portions II to provide a stop for the co- 5 operating part. The part 9 is termed a pin member and has a cylindrical pin I 2 with integral flat extensions I3, I4 on opposite sides of the tape 2. This part of the end connection may also have a secondary pin member I5 with a lug I6 l0 extending under the endmost fastener element.' The extensions I3, I4. are provided with apertures I'I, I8 respectively, through which are threaded the strain tapes I9, 20 respectively. The ends of these strain tapes extend crosswise l5 of the tape 2 throughout the width thereof and preferably beyond, as shown in the drawing. These strain tapes are secured to the Stringer tape 2 by any suitable means such as cementing or by stitches. In the construction shown an extension 2I of the tape 2 is folded back over the upper strain tape I9 and two rows of stitches '22, 23 are passed through the entire assembly including the turned-back portion 2l, the two plies of each of the strain tapes, and the main 25 portion of the tape 2. This firmly secures the strain tapes in position.

As a result of our invention it will be apparent that the stress coming on the rigid pin element of the separable end connection is transmitted 30 directly to the garment in which the fastener is attached. At the same time the fastener may be very conveniently attached in the garment by continuing the row of stitches to the end of the tape. In stitching of the fastener to the gar- 35 ment, the needle easily passes through the fabric tapesr I9 and 20. By this construction a neat appearance of the end of the Stringer is obtained and at the Sametime, the assembly is relatively flexible. 1f desired a similar reinforcement may 40 be provided for the socket part of the end connection. However, in practice it is found that diiiiculties are more commonly experienced with the pin part of the connection.

While we have shown and described in this 45 application one embodiment which our invention may assume in practice, it will be understood that this embodiment is merely for the purposes of illustration and description and that various other'embodiments may be devised within the 50 scope of our invention as defined in the following claims.

What we claim as our invention is:

1. A slide fastener adapted to be attached to the edges ofan article to be fastened, compris- 55 an eye therein, and a reinforcing member threaded through each eye and extending the remainder of the way across the end of the Stringer, said reinforcing member being flexible and being capable of being penetrated by stitches.

2. A slide fastener comprising a pair of tape stringers, cooperating series of fastener elements on the adjacent edges of said stringers, a separable end connection for said stringers comprising engaging parts secured to the stringers at the ends of said series of elements, at least one of said parts being provided with an aperture, a strain tape threaded through said aperture and extending across the end of said tape stringer,

a portion of said tape Stringer being folded back over said strain tape, and stitches securing said folded back portion and said strain tapes securely to the underlying portion of the Stringer tape.

3. A slide fastener adapted to be attached to the edges of an article to be fastened, comprising narrow fabric stringers, cooperating series of fastener elements on said stringers, and a separable end connection for saidv stringers at one end of the fastener comprising cooperating engaging parts lmade of rigid material and secured to adjacent edges of the Stringer, one of said engaging parts extending only part way across the end of the stringer and having an aperture therein, and a flexible reinforcing member threaded through said aperture and extending the remainder of the way across the end of said stringer and secured to said Stringer, said-reinforcing member being capable of being penetrated by stitches.

JOHN PUGH BENNETT.

ERNEST CONRAD HAPPOLD.

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