Abstract: The present invention relates to a method of manufacturing electromagnetic wave shielding yarn comprising the steps of (1) spinning core yarn with the apparatus for core spun yarn on ring spinning machine, (2) preparing rovings made of natural, synthetic and blended fiber, (3) preparing a twisted wire-filament core, (4) feeding rovings to front rollers through back and middle rollers, (5) supplying said twisted core to the front rollers applying tension on the twisted core by means of drafting the twisted core with suitable draft ratio which is the ratio of surface velocity between core supplying rollers and the front rollers and (6) twisting the delivered core yarn.

Abstract: An evergreen bough roping machine is disclosed. The device includes a spool support member for rotatably holding a spool of wrapping wire used to fasten boughs to a core wire thereby producing an evergreen garland. The separation of the spool of wrapping wire from a rotating planar disk member, which feeds the wrapping wire to encircle the boughs and core wire, allows for longer production runs before replenishment of the wrapping wire spool.

Abstract: Automation of a manufacturing device for a core yarn that an elastic yarn that is a core fiber becomes high stretchy, the yarn strength of the core yarn as a single yarn is high and a fiber comprising a fiber bundle is wrapped around the elastic yarn that is the core fiber. Regarding a core yarn 12 that the fiber bundle made from the cotton 100% covers an elastic yarn 11 used as the core fiber, the elastic yarn 11 used as the core fiber is drafted in more than 4 times of the drafting magnification between an elastic yarn supply device 10 and a yarn delivering device 14 disposed in the downstream side of a spinning device 13 for implementing air spinning by the vortex air current and having an air spinning nozzle 86 for generating the vortex air current and a hollow guide shaft 80 and a fiber bundle 5 covers the core fiber by centralizing the elastic yarn 11.

Abstract: The invention relates to a continuous process for obtaining a thread or strand, made of a plastic or textile material for manufacturing special fabrics, particularly artificial grass, comprising extrusion of a plastic material to obtain a given strand or flat thread and a helicoidal winding section. The extrusion and winding sections operate synchronically.

Abstract: The invention allows to increase the cracking corrosion resistance of a wire under stress by introducing, through surface treatment by brushing, compressive stresses on the apparent surface of the wire.

Abstract: A composite, break-resistant sewing thread having a core of continuous multi-filament, non-stretch high-tenacity synthetic yarn and a cover of drafted staple fibers air-jet twisted around and covering the core for protecting the core from heat and friction during a sewing operation. The yarn is plied.

Abstract: Machine for combining an elastomer thread (81) with an unextendable thread (11) wound on respective spools (80,10), which comprises a first pair (20) of rollers for driving the unextendable thread (11), a heating oven (30), a false-twisting group (40), a second pair (50) of driving rollers and at least one interlacing device (60), which are arranged in sequence along the path of the thread (11), characterized in that said elastomer thread (81) is supplied upstream of the said false-twisting group (40).

Abstract: A method and apparatus for producing core yarn in which a drafted fiber bundle and a core fiber are supplied to a nozzle block and a hollow guide shaft, and in which vortex air currents are ejected from spinning nozzles, in the nozzle block, to make the fiber bundle wrap around the core fiber evenly and uniformly.

Abstract: Wire, or other material, is wrapped around a shaft as the shaft turns, producing a coil. After being slid off the end of the shaft, the coil can be re-coiled by repeating the process. By shaping the twice-coiled material, a variety of pleasing jewelry beads may be formed. A variety of jigs useful for performing process are disclosed. One jig is easily and inexpensively manufactured from a unitary length of small rod, bent to provide (a) a wrapping shaft, (b) a feature for securing a free wire end; and (c) an actuator handle. The novel principles can be implemented in many different embodiments.

Abstract: A double-covered yarn based on a spandex core having a heat set of at least 50% and two sheath yarns wound in the same direction, a process for the preparation of such yarn and fabrics produced therefrom, are provided.

Abstract: An apparatus is provided comprising a first twisting device that dispenses a first wire and imparts a twist to the same, a second twisting device that receives the twisted first wire and twists the same about a second wire, and a metering device or capstan positioned on the outside of the second twisting device that controls the input velocity of the first and second wires. The apparatus can further include a third twisting device that dispenses a second wire and imparts a twist to the same. In a preferred embodiment of the present invention, the first and second wires are back-twisted and the second twisting device receives the first and second back-twisted wires and twins or pairs the same. A tension transducer is also provided which measures the tension of the wires before they enter the second twisting device.

Abstract: An improved manufacturing process for twisted pair exchange cables and for an improved binding machine used during this manufacturing process is provided. The manufacturing process includes a stranding phase and a cabling phase. During the stranding phase, unit cables are produced with only a first colored ribbon to identify them. During the cabling phase, a second colored ribbon that identifies the orientation of the unit within the cable is applied. This will result in units that have one of two colors (e.g., yellow or black). The improved binding machine is used to apply the second colored ribbon.

Abstract: A process to produce a plyed holographic yarn in which the slit film is allowed to be pulled from its source rather than being driven by drive rolls. The slit film and at least one other yarn are plyed and textured in an air texturing jet.

Abstract: A spinning machine in which downstream of the drafting frame and as part thereof, beyond the output rollers thereof, a suction roller is provided above the roving and cooperates with at least one counterroller below the roving to condense the roving before it is wound up on a ring-spinning or pot-spinning station.

Abstract: To produce a mock yarn which is similar in appearance to a true yarn with respect to the ability to discern the components of the mock yarn after the twist has been imparted to the mock yarn, the rovings or slubbings forming the mock yarn, after drafting separately but parallel to one another in a drafting frame, are subjected separately to condensing and compaction by suction rollers or belts provided with rows of perforations. Thus compacted and condensed rovings are then combined, twisted and wound up as mock yarns. A core thread can be introduced into each roving or into at least one of the rovings upstream of the last pair of drafting rolls or immediately upstream of the condensing unit for a core mock yarn.

Abstract: A fusion-bonded carpet system and method of manufacture which method includes providing as all or a portion of the wear face surface cut yarn material in rope form prepared in rope bundles and implanting one or both ends of the rope bundle in an adhesive layer on a backing sheet to provide one or two I-bond, fusion-bonded carpet material having a selected pattern on the wear face surface. The fusion-bonded carpet has a wear face surface composed of all or part of a yarn material in rope bundle form, for example, of a multicolored random or selected pattern. The carpet material may have a backing layer and form carpet tile.

Abstract: A spinning machine having a drafting frame, a condensing unit at the downstream side of the drafting frame and a spinning station for winding up the yarn and imparting twist to the roving in forming the yarn. The condensing unit comprises a disk-shaped suction rotor oriented in a plane tangent to the output rollers of the drafting frame. A limited compaction zone is formed by a shield within a suction rotor and designed to apply suction only to a limited portion of the perforated periphery thereof. The pressing roller bears against the suction rotor at the downstream side of the compaction zone.

Abstract: A machine for incorporating filament(s) into a fiber optic cable, e.g. a fly-off type strander (20). Strander (20) includes a frame (22) and a carriage (30) rotatably mounted to the frame. Carriage (30) includes filament packages (50) respectively mounted on fixed arbors (38) in protective barrels (33). For the prevention of snagging of the filaments on the packages, each barrel includes a respective filament guard (35) adjacent to or against which respective packages (50) are disposed. Each package (50) includes a respective filament tensioner (40) mounted to carriage (30) for tensioning a respective filament (52). As tensioners (40) are generally parallel to the axis of rotation of carriage (30), loosening or tightening of tensioner (40) during rotation of carriage (30) is avoided, whereby filaments (52) are firmly wrapped about a cable component at a controlled tension and an optimal speed.

Abstract: A thick/thin and/or color effect composite yarn is produced by depositing a sheath of one or more effect threads on a thick/thin filament yarn in which the thick regions are incompletely stretched, and the resulting assembly is then subjected to stretching to full stretch-out thicker regions.

Abstract: A method and apparatus for producing randomly variegated multiple strand wrapped yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air currents are created in a chamber in the twisting head by compressed air flowing into the chamber from a manifold through bores in the twisting head, thereby randomly twisting together two or more yarns in the chamber.

Abstract: A method of and apparatus for producing a thin/thick effect yarn provides a thin/thick effect by segmentwise stretching of a filamentary precursor yarn which is combined with a fully-stretched filamentary precursor yarn so that the latter supports the former. The combination can be effected by twisting, nub entanglement or winding of one yarn around the other.

Abstract: A twisted yarn structure includes constituent fibers which extend between a surface and a core of the yarn structure so that at least one portion of each fiber is trapped and bound within the yarn structure by portions of other fibers. The fibers can extend cyclically or in random fashion between an inner region and an outer region of the yarn, and can be twisted in subgroups along the length of the yarn structure to be locked in position therein. To produce the yarn structure having fibers which cyclically extend between the inner and outer regions, the fibers of a drafted strand of fibers from front drafting rollers are spun and passed through an oscillating guide before being wound on a spindle.

Abstract: An apparatus and method for manufacturing fiber optic cable having a plurality of optical fiber buffer tubes bound by a binder is provided. The apparatus includes a frame and an oscillator shaft support on the frame for oscillating movement about a longitudinal axis. A lay plate is carried by the oscillator shaft and has a plurality of openings for receiving and guiding longitudinally advancing buffer tubes into an oscillating lay about the axis. First and second longitudinally offset binder heads are mounted for rotation about the axis for winding respective binders around the buffer tubes. Both binder heads are concentric with and surround the oscillator shaft such that the closing point for the buffer tubes is downstream of the binder heads and closely adjacent to a locking capstan. The rotatably supported ends of the binder heads are positioned adjacent to each other which allows improved replacement of binder reels.

Abstract: An every course hose is produced by knitting substantially exclusively a covered elastic yarn into the leg portion knitting fabric thereof. A covering yarn is wound around an elastic yarn as the core yarn to form the covered elastic yarn. The covering yarn is constituted of a plurality of filaments made of a polyamide substantially free from titanium oxide and having a flat cross section with a flatness (b/a) (the ratio of the length b to the width a) of 2.0 to 6.0.

Abstract: A hose with reinforcing threads, includes an inner wall forming a pipe wall; a plurality of coated conductive wires spirally wound with a predetermined pitch; a plurality of reinforcing threads disposed on outer surfaces of the inner wall and the coated conductive wires along a pipe axis direction with a suitable interval in a circumferential direction; and an outer wall formed at an outside of the reinforcing threads. The outer portions over the coated conductive wires protrude outward so that the outer surface of the hose is spirally corrugated. The outer wall is formed of a plurality of synthetic resin band materials spirally wound for every pitch of the coated conductive wires.

Abstract: A method and apparatus for producing excess lengths of light waveguides in relation to a metal tube containing the waveguide comprises an arrangement for forming a metal tube and an arrangement for inserting the light waveguides into the metal tube at a greater rate of feed than the advancement of the tube being formed by the arrangement for forming a metal tube. The apparatus and method also include introducing a filling compound into the metal tube upstream of the point of introducing the waveguides and an arrangement of rollers for shaping the formed tube to its final cross sectional shape.

Abstract: A process for marking an outer jacket of an oscillating lay cable to indicate the locations of switchbacks thereunder. The process includes the step of providing detectable markings on an unjacketed cable core in predetermined position relative to the switchback. The process further includes the steps of sensing the detectable markings with a sensor prior to extruding an outer jacket over the cable core, predicting the location of the sensed markings on the cable core after a cable jacket has been extruded, and providing a marking on the cable jacket at a predetermined position relative to the predicted location of the sensed marking.

Abstract: A composite yarn is for making braided packing for sealing pump or rotating valve shafts. The packing comprises an external layer and a core. Preferably, the external layer is made of expanded polytetrafluoroethylene (PTFE) impregnated with graphite, and the core is an aramide filament. The graphite impregnated, expanded PTFE gives the composite yarn good thermal conductivity, high capacity of friction reduction and good resistance to chemical attacks. The aramide filament has high mechanical strength. The composite yarn can be braided to form a packing where only the PTFE contacts the shaft, thus protecting it against uneven wear.

Abstract: A method and device for winding an elongated element onto a cable product comprises a probe for measuring the tensile stress of the elongated element as it moves from a supply coil to a point for winding the element onto the cable product.

Abstract: In an improved power transmission belt, the circumferentially disposed reinforcing cords are made from multi-filament yarns of heterofilaments. These cords, when fused, have good inter-filament bonding without the solvent of the solvent/adhesive systems.

Abstract: A system for forming elastomeric core/staple fiber wrap yarn using a spinning machine such as an air jet, roller jet or roller spinning machine. The system includes a package drive assembly, yarn motion and presence sensors, an improved drafting assembly and a yarn clearer delay cylinder to provide continuous formation of superior quality elastomeric core/wrap yarn.

Abstract: A method for manufacturing a twisted yarn includes the step of removing two rovings from two separate supplies and passing each roving through a separate drawing device. From each roving a separate spun yarn is produced by ring-spinning. Each spun yarn is collected in the form of a bobbin on a yarn carrier of separate hollow spindles, wherein the separate hollow spindles are positioned atop one another. With formation of a yarn balloon the spun yarn is withdrawn from the bobbins and guided through the hollow spindle axle of the respective hollow spindle. The spun yarn withdrawn from the upper one of the hollow spindles is guided through the hollow spindle axle of the lower one of the hollow spindles. Both spun yarns are then guided together to a winding device positioned below the lower one of the hollow spindles. The hollow spindles are rotated as a function of the winding speed of the winding device such that a twist of the spun fibers is at least partially canceled.

Abstract: Machine for manufacturing uniform impedance communication cables for high frequency use includes a series of staggered double twisting units or heads each of which supports two reels wound with single wire elements or conductors, and a constant tension tape dispenser. The wire elements from the reels as well as the tape from the tape dispenser are simultaneously unwound and guided to the ends of the rotating bows of the twisting units at which points the individual wire elements or conductors are twisted about each other and the tape is applied to the twisted wire pair to fix and maintain the spatial integrity of the twisted wires relative to each other. Each twisting unit rotated at slightly different speeds to assure different lay lengths for each twisted pair. The twisted pairs are guided downstream by a capstan and all of the twisted and taped wire sets are secured to each other by a pre-twisting and taping operation before the composite cable is wound onto a rotating take-up unit.

Abstract: A method and apparatus for automatically removing a slub from spun filament yarn and a sliver or roving of staple fibers. The sliver or roving of staple fibers are fed through a drafting apparatus to prepare a continuous bundle of staple fibers. The filament yarn is pretensioned such that a texture is temporarily substantially removed. The continuous bundle of staple fibers and the filament yarn are combined downstream of the drafting apparatus. The combined continuous bundle and the filament yarn are fed into a spinner. The spun filament yarn and staple fibers are monitored to detect imperfections of a predetermined magnitude. A first signal is generated upon detection of an imperfection of the predetermined magnitude. The feeding of the staple fibers is stopped in response to the first signal. The core yarn is clamped at a predetermined position in response to the first signal.

Abstract: Two-component loop yarns composed of core and effect filaments are made of synthetic polymers and comprise the following features. At least some of the effect filaments are made of polyester, and at least some of the effect filaments have a breaking extension of from 35 to 70%, preferably from 35 to 60%. Moreover, at least some of the effect filaments have a birefringence of from 100*10.sup.-3 to 150*10.sup.-3, in particular from 125*10.sup.-3 to 140*10.sup.-3, and at least some of the effect filaments have a hot air shrinkage of 200.degree. C. of from 3 to 14%, in particular from 5 to 10%. The effect filaments have a filament linear density of not greater than 1.5 dtex.

Abstract: Machine for manufacturing uniform impedance communication cables for high frequency use includes a series of staggered double twisting units or heads each of which supports two reels wound with single wire elements or conductors, and a constant tension tape dispenser. The wire elements from the reels as well as the tape from the tape dispenser are simultaneously unwound and guided to the ends of the rotating bows of the twisting units at which points the individual wire elements or conductors are twisted about each other and the tape is applied to the twisted wire pair to fix and maintain the spatial integrity of the twisted wires relative to each other. Each twisting unit rotated at slightly different speeds to assure different lay lengths for each twisted pair. The twisted pairs are guided downstream by a capstan and all of the twisted and taped wire sets are secured to each other by a pre-twisting and taping operation before the composite cable is wound onto a rotating take-up unit.

Abstract: A method of manufacturing a composite yarn and composite yarn produced thereby in which a spandex yarn is fed to an air entangling or covering jet while being pre-elongated. Simultaneously, a multifilament partially oriented thermoplastic yarn is fed to the yarn entangling or covering jet while being partially or completely drawn to orient further or completely the thermoplastic yarn. The thermoplastic and spandex yarns are fed through the yarn jet while the filaments of the thermoplastic yarn are entangled to produce a composite yarn with the spandex yarn as the core and the thermoplastic yarn as a covering therefor. The composite yarn is then fed through a false twister and false twisted with the false twist being heat set in the thermoplastic yarn at a temperature which does not adversely affect the spandex core to produce an air entangled false twist texturized composite yarn.

Abstract: A method to provide a looped pile yarn having a high number of loops projecting therefrom. The yarn is produced by drawing and texturing a core and effect yarn with the effect yarn being supplied to the air texturing jet with a high overfeed in the range of 100-200%.

Abstract: There are described two-component loop yarns composed of core and effect filaments made of synthetic polymers, having a final tenacity of at least 30 cN/tex and a final linear density of less than 200 dtex and wherein the core and effect filaments each have a total linear density of in each case of less than 100 dtex.The yarns described are preferably useful as sewing yarns.

Abstract: A cabling machine for laying optofibers, cables or the like in an oscillating, wavy path around a smooth pull-reliever, or into grooves having an oscillating, wavy shape which are extruded around a pull-reliever, i.e., so-called S/Z-cabling. The machine includes a pull-reliever pulling-off device, a braking capstan, a fiber reeling-off device, and an S/Z-bench (6) for laying the fibers around the pull-reliever. When used with a grooved pull-reliever (2), a laying-on tube (11) of the S/Z bench (6) is connected to a transmission (14), and a sensor (17) is connected to the transmission and functions to detect rotation of the laying-on tube (11) caused by the oscillating waveshape of the grooves. The reeling-off device (1) and the braking capstan (3) are controlled to cause the pull-reliever (2) to rotate to perform a corrective function.

Abstract: An apparatus for, and method of manufacturing an optical fiber cable whereby stable transmission characteristics, such as length and tension, are maintained throughout a specified length of the cable. A slotted rod having spiral grooves formed longitudinally on the surface thereof is hauled by a hauling device, optical fibers or optical fiber ribbons are inserted into the spiral grooves, and a binding is applied onto the outer surface of the slotted rod to form the basis for an optical fiber cable stranding. The optical cable stranding with the optical fibers or the like inserted in the spiral grooves and with the binding applied thereon is wound around a guide wheel, thereby maintaining stable transmission characteristics throughout a specified length of the cable, and then further hauled. The guide wheel is rotatable about a rotary axis perpendicular to the hauling direction of the slotted rod.

Abstract: An optical cable has segment-like chamber elements with openings receiving a stack of waveguide bands characterized by the bands of each stack having a different length to compensate for stresses created by stranding the elements in an optical cable. To obtain the different lengths for each of the waveguide bands in a stack, the cable element is guided over a curved path, such as on a periphery of an insertion disc and the waveguide bands are then introduced into the chamber of the chamber element while in this curved position.

Abstract: A method and apparatus for forming a scrim with fibers oriented in the bias direction comprising of at least two belts and at least one plate which forms a three dimensional mandrel over which the bias scrim is formed. The plate is shaped so that any cross-section taken perpendicularly to the direction of travel of the scrim, the perimeter of the scrim formed by fibers wrapped around the machine in the plane of the cross-section is constant. This constant is equal to twice the final width of the scrim from selvedge to selvedge. The scrim is formed by wrapping fibers around the front of the assembly while the belts move toward the rear end of the machine. The movement of the belts carry the fibers to the rear of the assembly as they are wrapped around the assembly. The belts travel at substantially the same speed in opposite directions. The ratio of the speed that the fibers are wrapped around the assembly and the speed of the belts determine the fiber angle of the bias scrim.

Abstract: An apparatus for continuous production of a covered elastane-based yarn in which a partially stretched multi-filament yarn is twisted about a tensioned bare elastane yarn, at less than 500 revolutions per meter, and then heated and stretched again to complete the residual stretching of both parts of the covered yarn.

Abstract: A cabling machine is disclosed for laying optofibers, cables or the like in an oscillating, wavy path around a smooth pull-reliever, or into grooves having an oscillating, wavy shape which are extruded around a pull-reliever, i.e., so-called S/Z-cabling. The machine includes an S/Z-bench (6) which includes an aligning mechanism (13) which grips and guides the pull-reliever (2), and a motor (15) which imparts an oscillating, rotational movement to the aligning mechanism via a transmission (14). When used with a grooved pull-reliever (2), a laying-on tube (11) of the S/Z bench (6) is connected to the transmission (14) and a sensor (17) is connected to the transmission and functions to detect rotation of the laying-on tube (11) caused by the oscillating waveshape of the grooves. A reeling-off device (1) and a braking capstan (3) of the machine then cause the pull-reliever (2) to rotate to perform a corrective function.

Abstract: A steel strip (1) comprises two to seven round steel filaments (2) lying in parallel adjacent to one another so as to form a single plane of core filaments and one or more filaments (4) which are wrapped around the core filaments in one single wrapping direction. One or more core filaments, individually, or the plane of the core filaments as a whole have residual elastic torsions to such an extent that the strip remains substantially flat over the whole length of the strip if the strip is not subjected to external forces.

Abstract: An apparatus and process for continuous production of a covered elastane-based yarn is shown in which a partially stretched multi-filament yarn is twisted about a tensioned bare elastane yarn, at less than 500 revolutions per meter, and then heated and stretched again to complete the residual stretching of both parts of the covered yarn.

Abstract: Two-component loop sewing yarn composed of core and effect filaments of high tenacity and low shrinkage made of synthetic polymers, having an ultimate tenacity of above 40 cN/tex, a thermoshrinkage at 180.degree. C. of below 8% and an ultimate tensile strength elongation of below 18%, has a total count of 200 to 900 dtex, its core filaments and effect filaments being in a weight ratio of 95:5 to 70:30 with the linear density of the core filaments being 8 to 1.2 dtex and that of the effect filaments being 4.5 to 1 dtex.

Abstract: In a method and apparatus for producing a yarn, a synthetic pre-oriented multifilament yarn is fed at a first velocity to a non-heated pin having a diameter less than 10 mm. After turning the yarn around the pin for an angle between 270.degree. and 360.degree., the yarn is heated to a temperature between 100.degree. C. and 250.degree. C. for between 0.01 sec and 10 sec. The yarn is then drawn off the pin at a second viscosity higher than the first velocity.

Abstract: A core wrap system is provided in which a core strand and wrap strands spaced from said core strand on each side of said core strand are passed from the nip of a pair of rollers to a stationary support surface that is outwardly, downwardly curved, and which includes an open channel therein which is outwardly, downwardly curved along the surface; wherein the core strand is passed through the channel from the nip; wherein the wrap rovings are passed from the nip to converge upon and wrap around the core strand in the channel to form wrapped yarn in the channel; and wherein wrapped yarn then is passed through a ring traveler to a wind-up spindle.