US2163413A - Slide fastener - Google Patents

Description

June 20, 1939. D. S|| BERMAN 2,163,413

SLIDE FASTENER Filed DBC. l5, 1937 Fig' n INVENTOR. @av-Ld 3L lberman i Patented 20, 1939 PATENT oFFlcE alessia suon rssrsm David Silberman, Brooklyn, N. Y., assigner, by

mesne assignments, to Universal Slide Fastener o., Inc., New York, N. Y., a corporation of New York yApplication December 15, 1931, serial No. 119,843 '4 emma (c1. :n4-zot) ,This invention relates to improvements in slide fasteners, being particularly directed to a novel tape and scoop assembly forming the opposing stringer series, and the method of making the same.

l Primarily, it is an object of this invention to provide in a stringer for a slide fastener, a tape and scoop assembly, wherein the tape is of a formation serving as a mounting for spaced o scoops and having portions thereof forming a permanent cover flap for the jaws of the scoops dening the exposed face of the stringers.

Specifically, it is an object of this invention to provide in a stringer incorporating a tape carrying spaced scoops, a tape folded intermediate of its ends to provide a scoop-mounting edge, with the two sections of the tape defined bythe fold forming respectively a support element and a flap element. there being a ladder-thread formation on the flap element, so that upon folding the flap element over the scoops as mounted, a portion of the flap element serves as a cover for the jaws of the scoops on the exposed face of the stringer.

These and other advantages, capabilities and features of the invention will appear from the subjoined detailed description of one specific embodiment thereof illustrated in the accompanying drawing, in which- Figure 1 is a perspective view of a separable fastener assembly incorporating my invention.

AFigure 2 is a perspective view of a stringer in the' process of assembly.

Figure 3 is a plan view looking downward on opposing stringers of the fastener assembly.

A Figure 4 is a plan view looking upward upon opposing stringers of a separable fastener assembly.

Referring to the reference characters in the o drawing, numeral I0 represents a slide fastener assembly incorporating opposing strlngers il and Il' mounting conventional scoops, and a Y- shaped channel slider I2 of the conventional type. Referring particularly to Figure 2, the tape for the Stringer comprises a length of woven material having adjacent one of the edges thereof a ladder formation l: provided in the weaving through the elimination of a series of longitu dinally extending warp threads, the "ladder formation comprising of spaced weft threads Il defining substantially rectangular apertures IS.

The tape isv folded intermediate its width to form two sections, i6 and il, and along each of 66' such sections, adjacent the fold edge il Joining the same, beads or cords Il and Il' are disposed as by stitching.

A series of fastener elements or scoops 20 incorporating locking heads 2l having male and female members on opposite sides thereof, and

symmetrical jaws or legs 22 and 22', are mounted in spaced relationship along the fold edge il of the tape, the Jaws or legs 22 and 22' serving to enclose and clamp the beads I9 and It' and the fold edge I8. for firmly mounting the scoops to the tape; in further assembling the stringers (reference being had to Figure 2), the tape section i6 having opposing wings 23 and 2l joined by the spaced weft threads i4 forming the rungs of the ladder formation Il is displaced in the direction of the arrow there shown, about the fold edge I8 as an axis, for approximately 360 from its original horizontal position adjacent section I1. Asl a result of such displacement, the first' step of which is shown in Figure 2, andthe re width that the heads 2i of the scoops are readily adapted to pass through the apertures il thereof, said apertures being preferably defined by the grouping together of two or three weft threads or rungs Il in spacedrelationship; the length of the threads or rungs being such* that upon the passage through the ladder formation of the scoop heads. the threads rest against the periphery of the fold edge I8 between the scoops and as shown in Figure 4 extend between the Jaws or legs 22' of the scoops resting against the marginal portions of section Il clamped by such legs. The wing 24 of section il upon the'completion of the displacement of said vsection is disposed ina position parallel to and adjacent section l1 of the tape, the wing 2l being attached to the section I'l forming the body of the stringer by stitching indicated lai; 2l. l

It is obvious that various changes and modifications may be made to the details of construe'- tion without departing from the general spirit of the invention as set forth in the appended claims.

1. A stringer for slide fastener assemblies, comprising a folded tape and scoops each having a headand leg portions carried thereon in spaced relationshiatheleuoithescoonsbeingmounted to straddle and clamp the fold edge of said tape, the respective tape sections leading from the fold edge'defining a body and a flap, a longitudinally extending ladder formation intermediate the flap section and providing apertures bounded by spaced threads in one direction only, the ap section being disposed through displacement about the fold edge as an axis, whereby a portion thereof serves to cover the legs of the scoops clamping the same and the threads of the ladder formation thereon rest between the scoops, the free er/id of the flap section being adjacent and parallel to the body section.

2. A Stringer for slide fastener assemblies, comprising a folded tape, and scoops each having a head and leg portions carried thereon in spaced relationship, the legs of the scoops being mounted to straddle and clamp the fold edg` of said tape, one of the tape sections leading from the fold edge having longitudinally disposed spaced apertures intermediate its width, said section being disposed through displacement about the fold edge as an axis, the longitudinal surface between the fold edge and the spaced apertures of said section covering the legs nearest said section of the interlocking members, the remaining portions of interlocking members being passed through the longitudinally spaced apertures, the free end of said section being disposed adjacent ,and'parallel to the other tape section.

3. A stringer for slide fastener assemblies, comprising a folded tape and interlocking members each having a head and leg portions carried thereon in spaced relationship, the legs of the interlocking members being mounted to straddle and clamp the fold edge of said tape, one of the tape sections leading from the fold edge having longitudinally extending spaced apertures intermediate the width thereof and serving as a covering flap, said last named section being disposed through displacement about the fold edge as an axis, whereby the surfaces along its length between the fold edge and the spaced apertures thereon rest adjacent and cover the legs of the interlocking members nearest to said section, the spaced apertures of said tape section serving as sleeves through which the remaining portions of the interlocking members extend, the free end of said tape section being disposed adjacent the first named tape section.

4. A Stringer for slide fastener assemblies, comprising'a folded tape and scoops each having a head and leg portions carried thereon in spaced relationship, the legs of the interlocking members beingmounted to straddle and clamp the fold edge of said tape, one of the tape sections leading from the fold edge serving as the body of the Stringer, the other of said sections leading from the fold edge having spaced apertures separated by thread formations intermediate thereof and extending along its length, said last named section being disposed through displacement about the fold edge as an axis, whereby the surfaces along its length between the fold edge and the spaced apertures rest adjacent and cover the legs of the interlocking members nearest to said section, the spaced apertures serving as sleeves through which the interlocking members extend, the thread formations defining the spaced apertures being disposed between the interlocking members, and the free end portion thereof being disposed adjacent the first named tape section, said tape sections being stitched together along their length.

- DAVID SILBERMAN.

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