Abstract: Sliders are mounted in a continuous string or by swinging them into gaps in the otherwise continuous coupling chain. An opening or spreading device operates coupling members of the chain adjacent the gap and downstream thereof a fixing ram holds the members in position while the manipulator inserts the slide. A top guide and a lower guide are provided to receive the slider between them and to thread the free edges of the stringer threads into the slots on opposite sides of the cylinder core.

Abstract: In a slide fastener in which the row of coupling elements is woven into the tape, the warp yarns are formed in part with binding warp yarns in two or three groups. The warp yarns of the first group pass under double weft insertions between coupling members then over two or three coupling members and then under a coupling member and a double weft of the ground weft yarn underlying same. The binding warp yarns of the second group or arrangement pass over the double wefts between the coupling members and then under the coupling members and the double weft underlying same. A third group or arrangement can also be provided in which the double weft between the coupling members is lifted thereby into a loop and the coupling members are overshot by the binding warp of the third group.

Abstract: In a slide fastener in which the row of coupling elements is woven into the tape, the warp yarns are formed in part with binding warp yarns in two or three groups. The warp yarns of the first group pass under double weft insertions between coupling members then over two or three coupling members and then under a coupling member and a double weft of the ground weft yarn underlying same. The binding warp yarns of the second group or arrangement pass over the double wefts between the coupling members and then under the coupling members and the double weft underlying same. A third group or arrangement can also be provided in which the double weft between the coupling members is lifted thereby into a loop and the coupling members are overshot by the binding warp of the third group.

Abstract: A slide fastener has a pair of longitudinally extending and parallel textile tapes having thickened longitudinal edges that are transversely juxtaposed and formed with throughgoing holes at transversely aligned locations and that are provided with respective longitudinally extending rows of transversely projecting and interleavable coupling teeth. A slider having slots fittable over the edges is displaceable along the edges over the teeth in one longitudinal direction for interleaving the teeth and coupling the tapes together transversely and in the opposite direction for disengaging the teeth from each other and decoupling the tapes from each other. Thickened synthetic-resin reinforcement tabs are integrally molded onto the tapes at the locations of the throughgoing holes and extend thereat transversely up to the edges.

Abstract: A slide-fastener stringer is pulled through a gapping station by a motor operatively engaging the stringer without slip and at least one feed roller engaging the stringer upstream of the gapping station. A storage unit downstream of the feed roller and upstream of the gapping station loops the stringer upstream of the station in a variable-size loop and has a rotatable and movable buffer roller over which the stringer passes and a pair of rotatable but nonmoving buffer rollers flanking the movable buffer roller. The movable roller is urged away from the flanking rollers with a force sufficient to tension the stringer. The drive of the feed roller is operated in accordance with the position of the movable buffer roller for stretching the stringer between the buffer rollers by at most 1%. A gapper at the station periodically clamps and longitudinally arrests the stringer and then cuts the coupling elements therefrom at the station.

Abstract: A slide-fastener stringer half has a coupling coil having a row of turns defining a longitudinal passage and each formed with a coupling head, an upper leg and a lower leg extending transversely from the head and flanking the passage, and a bight extending from one of the respective legs to the other leg of the adjacent turn. A knitted tape against which the lower legs engage and from a longitudinal edge of which the heads project is formed of a plurality of outer warp chains adjacent the coil, an upper warp chain overlying both the upper and lower legs of the coils, and a lower warp chain overlying only the lower legs of the coil and extending along the passage between the upper and lower legs of the coil. Thus with this system the group of filaments forming the lower warp chain takes the place of the normally provided filling cord.

Abstract: An apparatus for packing slide fasteners as they arrive in a longitudinal transport direction one after the other at a predetermined travel speed from a production facility has a speedup conveyor receiving the arriving slide fasteners and operating at a speed substantially higher than the travel speed thereof and a separating conveyor running transversely of the speedup conveyor and having an upstream end receiving the fasteners from the speedup conveyor and a downstream end transversely offset therefrom. A collection trough having a floor inclined to the horizontal, upper and lower ends, and a plate blocking the lower end is positioned underneath the separating conveyor to receive the fasteners therefrom and a downstream trough is aligned longitudinally with and has an upstream end separated by a space from the collection trough, a floor formed with a throughgoing aperture, and a downstream end. A collection vessel is provided underneath the downstream end of the downstream trough.

Abstract: A method of mounting a slider on a workpiece consisting of a pair of parallel and longitudinally extending tapes having confronting edges provided with interleavable coupling elements and formed by removal of sections of the elements to form longitudinally spaced gaps comprises the steps of first feeding the workpiece in a normally forward travel direction along a Z-shaped path having an upstream portion, a middle portion, and a downstream portion. Then the presence of one of the gaps is detected at the middle portion and, when such presence is detected, the workpiece is arrested at the middle portion. The one gap of the arrested workpiece is then spread and thereafter a slider is pushed transversely into the spread gap. The workpiece is then gripped in the upstream portion and pulled backward so as to pull the coupling elements through the slider pushed into the gap. Finally the slider is released to continue forward advance of the workpiece.

Abstract: A slide fastener is made from a workpiece formed of a pair of longitudinally extending parallel tapes having confronting edges provided with longitudinally extending and transversely couplable coupling elements. This workpiece is passed along a treatment path through a gapping station, a bottom-stop installing station, a slider-mounting station, a top-stop installing station, and a cutting station. The elements are removed from the tapes at gaps spaced longitudinally of the workpiece in the gapping station and a bottom stop is fitted to the elements at one end of each of the gaps in the bottom-stop installing station. A slider is mounted on the elements at the slider-mounting station between each gap and the following gap and a top stop is fitted to the elements in the top-stop installing station at each gap. Finally the tapes of the workpiece are transversely cut at the gaps at the cutting station into individual slide fasteners.

Abstract: A slide-fastener stringer is made by feeding a warp of warp filaments in a longitudinal warp direction to a weaving location, feeding to an edge of the warp at the weaving location a coupling coil formed by a multiplicity of turns each forming a coupling head directed transversely away from the warp and a coupling part extending at least generally longitudinally, feeding to the weaving location within the coil a thick filler cord, and weaving through the warp filaments and around the coupling parts and filler cord between the heads at least one weft filament. In order to maintain coil pitch exact both the coil and filler cord are positively engaged at a location immediately longitudinally upstream of the weaving location with a feed and guide element so as to retard advance of the feed and guide element and create in both the coil and in the filler cord a tension between the feed and guide element and the weaving location.

Abstract: A gaping surgical incision can be closed by drawing the edges of the incision toward one another by the application of traction to the wound. Adhesive strips which project beyond support tapes of a conventional garment-type slide fastener stringer are then applied to the skin along the incision and the slider is closed to provide a healing closure for the wound. Spacer strips between the skin and the support tapes are spaced outwardly from the respective coupling elements to define a free space and prevent the wound from contacting the coupling elements or the support tapes.

Abstract: A method of producing a continuous slide fastener strip by weaving on an automatic needle loom, warp yarns for support tape and warp yarns for tying-in being guided to form sheds, weaving needles being used to pick weft yarns for the support tape and a plastics monofilament yarn. A weaving needle which reciprocates continuously between an outside position and an inside position is operative to loop the plastics monofilament yarn around a former for forming coupling members, a row thereof being formed continuously from the latter yarn, the coupling members of such row each comprising a coupling head and connected arms which form a coupling loop and being joined together by connecting parts.

Abstract: A sliding clasp fastener having woven supporting tapes and woven-in prefabricated rows of interlocking members each formed helically from a plastics monofilament, in which the interlocking members, seen in a projection on the plane of the sliding clasp fastener, have limbs superimposed on at least the interlock side, interlocking heads protruding beyond the edges of the supporting tapes, an inserted core and attachment sections. Each row of interlocking members is attached to the top face of its supporting tape by binding chain threads engaging the interlock side of each interlocking member and at least one wrapping thread engaging the attachment sections and the core and attaching them to the supporting tapes. The binding chain threads are crossed over between successive interlocking members. The wrapping threads pass around the binding chain threads in a loop between successive interlocking members.

Abstract: In the process for mounting a slide fastener segment or slide fastener near the opposing edges of two pieces of material, particularly on a slit in a piece of clothing, a slide fastener strip, the slide fastener segment or the slide fastener and the pieces of material are fed to the sewing stations of a two needle sewing machine. The pieces of material in the region between the sewing stations are positioned to form a gap and are curved so that a portion of each hangs substantially vertically from two fold edges or creases in an intervening space between both of the sewing stations. Both slide fastener halves of the open slide fastener segment or the open slide fastener are sewn on from above on the horizontal portion of the pieces of the material along the fold edges. Apparatuses for performing the process according to my invention are also described.

Abstract: A slide fastener slider has a reversed bend spring member mounted on the slider body and having a spring tongue bend reaching through a window in a fastening portion thereof which is opened in one side. This increases the resilient force with which the tooth or pawl engages the coupling member and also allows the spring element to be thinner than the earlier system in which a sheet metal spring is used.

Abstract: A slide-fastener assembly comprising a pair of longitudinally extending and parallel tapes having adjacent edges carrying respective coupling coils that form coupling heads and that are interleaved with one another is gapped by advancing the assembly in steps through a punching location, engaging the coils upstream and downstream of the location by respective upstream and downstream grippers and holding the assembly stationary in the station between steps, and punching the heads off the coils between the grippers while the assembly is held stationary in the station. The grippers are displaced apart to longitudinally tension the coils after engaging the grippers with the coils and before punching the heads off the coils. Thus the upstream gripper is displaced upstream and the downstream gripper downstream, slightly stretching and tensioning the tape assembly.

Abstract: A slide fastener stringer of the woven type in which the tape has a ground weave provided with warp threads and a weft formed of double-weft passes on a needle loom. The coupling element is of the continuous, preferably coil, monofilament synthetic-resin type in which the shanks of each coupling member are formed as a double-weft connected in the weaving process with the ground weave of the tape. According to the invention, the warp passes receiving the double-weft of the ground weave are separate from the warp passes receiving the double-wefts of the monofilament and are spaced or offset therefrom in a direction orthogonal to the slide fastener plane. Some of the warp threads form the passes over the double-weft of the ground weave and run over the shanks to form the passes for the double-weft of the monofilament.

Abstract: A method of making a slide-fastener stringer in which a continuously woven tape and a coupling element interwoven with the tape are formed continuously and the coupling elements of the resulting continuous web are gapped to permit insertion of the slider onto the web which can then be subdivided into individual slide-fastener stringers. According to the invention, weft yarns pass beneath the bight connecting the coupling members of the continuous coupling element and over warp yarns which are thereby held over the shanks of the coupling members by these wefts so as to be drawn away from the bights and so as to lock the warp yarns thus bunched together preventing them from raveling upon gapping of the web.

Abstract: A slide-fastener stringer has a tape formed from a ground weave with double wefts interwoven with a warp and a coupling element disposed along the edge of the tape and held thereto by binding warps. The coupling element is of the type in which a synthetic resin monofilament is coiled to form coupling heads whose shanks are disposed one above the other so that they have a common projection in the slide fastener plane. The shanks are connected to those of successive heads by bights. The coupling warp comprises a plurality of warp yarns whose patterns are offset lengthwise by at least one pick and which each passes over two coupling elements, between the next coupling element and a ground double weft and under a double weft between coupling elements in a repeating pattern. Double weft disposed between consecutive coupling members are drawn upwardly beyond the median plane of the coupling element as ground-weft padding loops.

Abstract: A slide-fastener stringer has a tape formed from a ground weave with double wefts interwoven with a warp and a coupling element disposed along the edge of the tape and held thereto by binding warps. The coupling element is of the type in which a synthetic resin monofilament is coiled to form coupling heads whose shanks are disposed one above the other so that they have a common projection in the slide fastener plane. The shanks are connected to those of successive heads by bights. The coupling warp comprises a plurality of warp yarns whose patterns are offset by two picks and which each pass over two coupling elements, under a double weft between coupling elements, over another coupling element and then under the next coupling element in a repeating pattern.