Abstract: A core/wrap yarn forming system comprising two or more channels extending outwardly from the nip of the front draft rolls of a ring-spinning system; wherein each channel's entrance is closely adjacent to the nip; wherein the entrances are spaced apart from one another; wherein the channels merge with one another at the exit from the device; wherein the first channel is essentially straight throughout its length, and is perpendicular to the nip; wherein each of the other channels is curved to guide the strand therein in a convex pathway with respect to the first channel, and converge inward to the end of the first channel. The core is supplied through the straight channel, while one or more wrapping strands pass through the curved channel or channels, and wrap around the core where all the channels merge. The wrapped yarn then is passed to an ordinary ring traveler and wind-up spindle of a ring-spinning assembly.

Abstract: A method and apparatus for increasing the line speed of an S-Z strander by applying a tensile force to the elongated accumulator of the strander, between 124 pounds and less than the elastic limit of the material from which the elongated accumulator is made, while the elongated accumulator is rotated in a reversing manner about its longitudinal axis and coated optical fibers and/or elongated tubes containing optical fibers are S-Z stranded thereabout.

Abstract: Vacuum spinning of yarn produces yarns having good properties, and which may have a wide variety of different effects and constructions. A core filament yarn may be fed into operative association with a nipped sliver or roving, and then fed to a perforated rotating hollow shaft operatively connected to the vacuum. The core filament yarn may be a full stretched textured yarn, which is placed under tension and while under tension is dragged over a sharp edge of nonconductive material, and after the tension is relieved develops crimp. This causes individual fibers to be repelled, and provides for intermixing of the nipped sliver or roving fibers and the core filament yarn fibers. Alternatively the filament yarn may be acted upon by draft rollers before the entrance to, and after the exit from, the hollow rotating shaft, to apply a force that breaks up to about 20% of the fibers. The yarns produced utilizing the broken fibers has a spun-like appearance.

Abstract: A method and apparatus for flamme fancy yarn manufacture for textile production of various number of effects along the length and in a given length of ready-made yarn, irrespective of the length of the fibres of the inlet product both from short staple and long staple material as the flamme fancy yarn is obtained by simultaneous feeding of two slivers with one and the same staple fibres length, as one of the slivers may not be subjected to a permanent force in the draft zone, it may be drawn normally without breaking to be used for the formation of a core thread. The apparatus for achieving the method has the advantage of an easy readjustable construction, and the ability to change the range of products without replacement of the performing elements.

Abstract: Disclosed is a method for making a reinforcing element for use in asbestos-free friction materials. According to the method, heterogenous strands are joined together, without twisting them, and subjected to a fluid jet and to a rubber compounding material. At least one of the strands is fed to the multiplying stage at an overfeed rate.

Abstract: A core/wrap yarn is formed on a conventional ring-spinning yarn system by including a gripper nip immediately downstream from and closely adjacent to the front roller nip of the system; feeding a core strand and at least one wrap stand on each side of the core strand from the front roller nip to the gripper nip, wherein the wrap strands are spaced from the core strand at the front roller nip and converge with the core strand in the gripper nip to wrap around the core strand in the gripper nip so as to form wrapped yarn which then is passed through a ring traveler on to the wind-up system.

Abstract: A novel pile fabric and method of making the pile fabric which employs a three-ply yarn having one yarn being textured and the other two yarns being non-textured to provide a wool-like appearance to the fabric and eliminate the tendency of such a fabric to finger mark.

Abstract: A wiring installation comprising a taping head (8), which installation is characterized in that the taping head (8) includes:A--exterior assembly (81) which rotates in relation to the general axis (XX') and which includes an assembly for guiding the cable before and after the taping with an input (82) and an output (83) arranged in accordance with the direction of the general circulation of the cable in the installation, this direction relating to the unwinding axis (XX'),B--an interior assembly (84) which rotates in relation to the general axis (XX'), independently of the exterior assembly (81) and including a taping assembly (85), where the input (86) and output (87) of the cable of this interior taping assembly (84) are arranged in a direction opposed to the general cable unwinding direction in the installation,C--an assembly for guiding the cable from the exterior assembly towards the input of the interior assembly and for taking up the taped cable at the output of the interior assembly to cause the cable

Abstract: A suspension cable is encased in a metal pipe formed from a metal strip wound in a series of adjacent helical windings on the cable. The longitudinal edges of adjacent windings are connected by a continuous tight fold.

Abstract: In the processing of light waveguides, a method uses an overhead haul-off from a first supply reel to apply a pre-twist to the light waveguide, which is preserved during a tinting operation and while the tinted waveguide is wound in a tangential direction on a second supply reel. During further processing, in acordance with the present method, the waveguide is taken off by an overhead haul-off process from the second supply reel in a direction of haul-off which is opposite to the direction during the first overhead haul-off so that the twist produced by the second overhead haul-off is in an opposite direction and compensates for the twist produced during the first overhead haul-off operation.

Abstract: This invention provides a composite wire rope comprising a plurality of outer strands laid helically about a helically stranded core. The core is comprised of high strength synthetics, such as polyamide or polyolefin materials to form a unitized lay central member. The method for forming the rope comprises the steps of twisting high strength synthetic monofilament yarns into core elements to provide a high degree of stability and overall tensile strength. Each such element is helically laid in a single operation to form the finished core. Lubricant may be applied and subsequently a protective jacket of steel, natural or synthetic material may be provided to encapsulate the core and lubricant. The rope structure is completed by helically laying a plurality of outer strands about the core.

Abstract: An optical cable, especially suitable for use as an aerial cable, comprises a circumferentially rigid flexible tube which is of composite form and comprises a plurality of elongate flexible bodies helically laid up together, each of which bodies is of a cross-section approximating to a sector of an annulus and comprises extruded electrically insulating plastics material and a mulitiplicity of longitudinally stressed elongate flexible non-metallic reinforcing elements encapsulated in said plastics material, e.g. polypropylene or nylon, the multiplicity of non-metallic reinforcing elements being substantially evenly distributed throughout the cross-sectional area of the body. An outer protective non-metallic sheath surrounds the tube and at least one flexible optical guide, e.g. a separate optical fibre, optical bundle or optical fibre ribbon structure, is housed in the bore of and is movable relative to the tube.

Abstract: Hollow fiber separation membranes are bundled in groups of 5-350 membranes and helically wound with a 20-120 denier yarn. The bundle is more readily handled when making permeators using dry membranes and there is significantly reduced fiber breakage and damage.

Abstract: A two-component yarn is created from a fiber component and a component consisting of a filament yarn, in which the fiber component is formed by a drawn sliver that is prestrengthened by means of pneumatic false-twist spinning and is twisted together with the filament yarn.

Abstract: The present friction spinning apparatus includes a draw frame section with an entrance trumpet including first and second fiber sliver guiding passageways for forming a three component corespun yarn. One of the guiding passageways directs a core roving into the draw frame section while the other sliver guiding passageway directs a core wrapper sliver into the draw frame section so that the core wrapper fibers surround the core fibers. Wrapping fibers are then wound about the core and core wrapper fibers in an elongated throat extending between a pair of rotating suction drums.

Abstract: A false twisted bulky synthetic multifilament yarn of a uniform polymer consisting of at least two filament bundles of different filament deniers, with the filaments in each of said bundles having the same denier per filament. The smaller denier per filament is less than 1 dtex, and the total denier of the texturized yarn is in excess of 100 times the finer filament denier. For the production of such a multifilament yarn, the draw ratios of both filament bundles are chosen such that the difference between both draw ratios is smaller than 0.1, and both bundles are drawtexturized simultaneously at a draw ratio corresponding to the draw ratio of the filament bundle having the coarser denier per filament. Preferred end uses of the yarn are water-repellent fabrics, dust proof fabrics, and the conductive component of sports wear.

Abstract: An air spinning method and apparatus for spinning a yarn. The apparatus includes a pipe with a fiber bundle passageway, air jet nozzles for applying whirling air currents near the inlet of the pipe, and a rotating body including air discharge passages and revolving around the pipe. In the method, the fiber bundle is passed through the pipe's fiber bundle passageway. Rear ends of some fibers are separated from the fiber bundle by air currents jetted from the nozzles so as to be rotated together with air currents by the rotating body after drawn into the discharge passage. Fibers lying in the central portion of the fiber bundle, pass through the pipe's fiber bundle passageway without being influenced by the air currents jetted from the nozzles.

Abstract: A flowline bundle is twisted or braided into a permanent rope-like helical configuration, prior to laying the flowline bundle offshore by the reel method. Apparatus for forming the helical flowline bundle includes a pipe twist head and a series of pipe tumblers alternating with intermediate pipe supports, which apparatus rotates and translates part of a flowline bundle while simply translating the other part.

Abstract: A sewing thread, whose twist factor is between 100 and 150, consists essentially of a fixed high-tenacity multifilament core, sheathed with a cover of staple fibers, the unit being wrapped with a multifilament yarn. The process of spinning this sewing thread is performed on a spinning frame. The core yarn and the roving of staple fibers are brought to drawing rolls in the drawing plane, and wrapping yarn is brought to the drawing rolls in an offset manner relative to the spinning plane.

Abstract: An apparatus and method for inserting optical fibers into a spacer having spiral grooves to produce a spacer type optical fiber cable wherein a torsional force detecting device is formed integrally with the optical fiber gathering device for inserting optical fibers into the spiral grooves. The torsional force exerted on the device by the spacer is detected by a tension/compression measuring device and the axial speed of the spacer is controlled in response to the measured torsional force so as to reduce the torsional force to zero.

Abstract: An apparatus for the production of a yarn has a joining group provided with a frame carrying a pneumatic-joining assembly, a unit for conditioning substantially inelastic yarns and feeding them to the pneumatic-joining assembly and a unit for feeding an elastic strand to the latter. A common drive is provided with individually adjustable transmission ratios using conical pulleys and belts.

Abstract: In an optical fiber cabling line where a grooved ring is axially drawn at a translational speed, there is provided a device designed to insert optical fibers in helical grooves of the ring. The fibers are unwound, are drawn through a rotating plate and converge following cone generating lines towards the device. In order to avoid the use of fiber-guides coupled directly in rotation with the ring, the device comprises a quill rotationally stationary and coaxial with the ring for laying the fibers into the grooves of the ring, and means, such as two worm screws set orthogonally to the ring, arranged after the quill in the travel direction of the ring and mechanically uncoupled from the ring for thrusting the fibers to the bottoms of the grooves. The worm screw also contributes to align the fibers as they leave the plate, with the ring grooves within the quill.

Abstract: A suspension cable is encased in a metal pipe formed from a metal strip wound in a series of adjacent helical windings on the cable. The longitudinal edges of adjacent windings are connected by a continuous tight fold.

Abstract: A method to produce a novel three-ply yarn which, when woven into a pile fabric, tends to eliminate finger marking on the surface of the fabric. The method includes the steps of drawing and relaxing two yarns prior to commingling with a third false twist textured yarn.

Abstract: A conductive yarn includes a continuous non-conductive carrier thread having a relatively low modulus of elasticity; a continuous metal thread; and the carrier thread being wrapped around the metal thread. A process for making such conductive yarn includes the steps of pulling the continuous metal thread off a first package; pulling the continuous carrier thread off a second package; applying a relatively high tension to the carrier thread with respect to the tension on the metal thread as both threads are being pulled off their respective packages; and wrapping the tensioned carrier thread around the pulled metal thread. Apparatus for performing the method is also provided.

Abstract: Apparatus for forming an SZ cable. The apparatus includes supply spools for providing a number of conductors to be formed into the cable, positioned at the upstream end of the apparatus, and a take-up reel for advancing the conductors downstream and for taking up the completed cable. A fixed guide ring having openings for passage of the conductors is located downstream of the supply means, and a rotatable guide ring is positioned downstream of the fixed guide ring. A first motor is provided for rotating the downstream guide ring. The apparatus further includes an accumulator tube having an outside surface for receiving turns of the conductors, with the tube being movable back and forth relative to the direction of travel of the conductors. An intermediate guide ring is carried by the tube adjacent its downstream end. The apparatus also includes a second motor for rotating the intermediate guide ring and the tube with the tube being movable between a downstream position and an upstream position.

Abstract: In the manufacture of an optical fiber cable in which optical fibers are paid out from supply bobbins and inserted into the grooves of a core member by means of an inserting head, a photoelectric optical system is disposed between the supply bobbins and the inserting head to provide signals indicating the position of the optical fibers advancing from the supply bobbins. A control device is connected to the photoelectric system and is responsive to the signals generated therefrom to control the speed at which the optical fibers are paid off from the supply bobbins.

Abstract: A method of manufacturing wire ropes, in which a translational motion is imparted to wires (2) fed from reels and before the twisting of these wires around the core member (11) they are given a residual deformation by way of subjecting each wire (2) to a flat bending on one support (3) and to a helical bending in the direction revolved relative to the direction of the flat bending. A wire rope twisting machine in which a device for imparting a residual deformation to the wires (2) is secured on an output portion of a hollow shaft (14) coaxially therewith includes a body (23) on which are installed for each wire (2) two supports (26, 27) arranged in succession. The first support (26) is installed for free rotation about its geometrical axis (28a) and the second support (27) is installed for free rotation relative to its geometrical axis (31a) and for a setting turn about an axis (33a) disposed perpendicularly to the geometrical axis (31a) of the second support (27).

Abstract: A grooved cylindrical core or rod is conveyed in a state of elastic elongation, giving it excess length, through a distributing device and a die-plate. Optical fibers are each fitted in a respective groove of the rod at the entry of the die-plate. Downstream from the die-plate, the rod provided with the fibers passes through a zone in which there is a powerful electric field created by a ionization bar. Under the influence of the ionization, the fibers cling to the walls or bottoms of the grooves. This provides the drag necessary for stretching the fibers when they approach the rod.

Abstract: Laying a transmission member into a groove extending along a support while passing around the support for more than one revolution in one direction and then in the other. The transmission member is fed from a fixed storage position, through a positioning device and to a laying device while being spaced radially from a passline for the support. A shielding tube is provided around the passline downstream from the positioning device whereby the support moves through the tube on its way to the laying head whereas the transmission member twists around the tube as it is being fed, thereby holding it separated from the support before reaching the laying head. Preferably, an alignment device upstream from the laying head aligns the transmission member axially with a guide passage in the laying head. This latter arrangement is particularly useful when the transmission member is a tube containing optical fibers.

Abstract: A laying head for laying a tube containing an optical fiber onto the outer surface of an elongate support. An upstream end of the laying head provides an inlet for the support and a guide passage for guiding the tube into a chamber of the laying head. The chamber extends around the passline for an angular distance greater than that of the guide passage to allow lateral movement of the tube within the head. The tube passes from the chamber onto the surface of the support as the support exits the chamber. The chamber allows for lateral tube movement to enable the tube to be laid onto the support in spiral fashion with the tube causing the head to rotate around the support.

Abstract: The invention relates to an arrangement for reverse-stranding (SZ-stranding) at least one stranding element of a cable, in particular a stranding element containing a beam waveguide, about a central element, a laying device being arranged between the oscillating lay plate and the fixed lay plate, which laying device takes up and pays out a lay of the stranding element at alternating periods, and comprises a stress controller for evening out the pull-off speed from the supply reel, which is arranged between the fixed lay plate and the supply reel.

Abstract: In the case of a process for producing feed spools for a twisting operation that comprises essentially two slivers that are prestrengthened by pneumatic false twisting, it is provided that after the pneumatic false twisting and before the winding-up, a filament yarn is added.

Abstract: This invention relates to a spinning installation for making fiber spun yarns, the yarns comprising a central core of discontinuous fibers covered with an external sheath also of discontinuous fibers. The fibers forming the core and the sheath come from a common drawing system at the outlet of which they are projected onto two condenser elements. The assembly is subjected to the action of a false twist spindle. The condenser element on which the fibers forming the core are projected comprises a rotary guide associated with a mobile roller which blocks the extension of twist communicated by the false twist spindle.

Abstract: An apparatus and a process for simultaneously twisting a channeled core rod, inserting optical fibers into the channels and capturing the twist of the rod while minimizing the insertion stresses imposed on the optical fibers. The apparatus comprises a shape capture die, an insertion die and a core capture means which are located proximate one another to provide a short region of twisting. The insertion die is rotationally fixed to the shape capture die so that as the core passes through the center of the insertion die the fibers are automatically inserted into the channels of the core. The core and inserted fibers are then passed to a core capture means which controls rotation of the core but permits its axial translation. The rotating elements of the machine are driven from a line shaft or other suitable means providing them with identical rotation rates.

Abstract: A method for forming a slub yarn uses conventional false-twist texturing apparatus in combination with one or more air jets to impart striations and/or neps and slubs to continuous filament yarns. Three process configurations are disclosed; each configuration uses one air jet through which yarn passes and which directs turbulent air in a direction opposite to the direction of travel of the yarn.

Abstract: A method of manufacturing a combined yarn which includes feeding staple fibers to the collection groove of an open-end spinning rotor, twisting the staple fibers into a staple fiber yarn, combining the staple fiber yarn with a continuous filament yarn which is also fed into the spinning rotor and then twisting the continuous filament yarn and the staple fiber yarn together to form a balanced ply yarn.

Abstract: A steel cord, for use in the reinforcement of resilient articles such as rubber tires, comprises a central bundle of wires surrounded by a circumferential layer of helicoidally twisted wires. In the central bundle, one can distinguish a core and a surrounding layer, the latter having the same twist pitch as the circumferential layer. In order to reduce wire migration, the wires of the central bundle show a limited number of relative position changes, between 2 and 300 per 30 cm cord length.

Abstract: Vacuum spinning of yarn produces yarns having good properties, and which may have a wide variety of different effects and constructions. A core filament yarn may be fed into operative association with a nipped sliver or roving, and then fed to a perforated rotating hollow shaft operatively connected to the vacuum. The core filament yarn may be a full stretched textured yarn, which is placed under tension and while under tension is dragged over a sharp edge of nonconductive material, and after the tension is relieved develops crimp. This causes individual fibers to be repelled, and provides for intermixing of the nipped sliver or roving fibers and the core filament yarn fibers. Alternatively, the filament yarn may be acted upon by draft rollers before the entrance to, and after the exit from, the hollow rotating shaft, to apply a force that breaks up to about 20% of the fibers. The yarns produced utilizing the broken fibers has a spun-like appearance.

Abstract: Apparatus for changing relative positions of conductor pairs in a cable core in which each pair is moved through its individual guide movable around a substantially circular path. The guides lie in series and move independently of one another. An array forming device at the downstream end of the movable guides has a smooth convex surface for engaging the conductors and holds them in an array while enabling the pairs to change their relative positions in the array as dictated by movement of the guides. A closing die for the conductor pairs is located downstream from the array forming device.

Abstract: A process for manufacturing reinforced false twist yarns includes employing braking rolls, drawing bands, pulling rollers, twisting rolls, and yarn guides to manufacture a reinforced false twist yarn from first and second fiber rovings and from a continuous fiber yarn. The yarn guides are separated from one another such that, when the first roving is combined with the second roving and continuous fiber yarn, untwisted regions of the first fiber roving are in substantially non-overlapping relationship with untwisted regions of the second fiber roving.

Abstract: A plurality of heavy denier thermoplastic monofilaments is gathered together and continuously wrapped with a flexible wrapper yarn. The wrapped bundle is fed into a stuffer crimper to form a multiplicity of texturized bends. The product is a stiff, pliable texturized yarn and the nomofilaments in the wrapped bundle have a multiplicity of heat-set bends repeating lengthwise along the lengths of the monofilaments.

Abstract: Apparatus for assembling optical fibers into sinuous grooves of a support filament in which an annular laying head for guiding the filament has guide bores for the fibers. The bores are fixed within the head and are angularly spaced around it and inclined relative to an axis passing through the head. Groove locating projections are provided, one projection associated with each guide bore. The projections entered into a central passage of the annular head, each projection axially to one side of and adjacent the outlet end of its associated guide bore. The projections located within the filament grooves thereby aligning the bore outlet ends to feed the optical fibers directly into the grooves.

Abstract: A pay-out stand for supply reels utilized in manufacturing cables particularly light waveguide cables having a basket-like structure mounted for rotation around a horizontal axis with carrier members extending parallel to the axis adjacent the periphery of the basket-like members. The supply reels are situated on the inside of each carrier part, preferably in pairs, and the carrier parts are spaced so that access of the supply reels can be had from the outside of the stand to enable splicing the lead from a backup reel to a waveguide of a feed reel which is feeding a lead out of the pay-out stand.

Abstract: A composite rope obtained by a process comprising(1) impregnating a fiber core of a reinforcing fiber bundle with a thermosetting resin,(2) coating the outer periphery of the resin-impregnated fiber core with fibers, and(3) curing the thermosetting resin with heat.

Abstract: A continuous process for manufacturing an optical cable element in which a central draw core is rotated with a periodically reversing direction of rotation. The draw core is then provided (i) with synthetic resin tubes in which one or more optical fibers are incorporated, or (ii) with an extruded synthetic resin sheath with grooves in which one or more optical fibers are laid. As a result of the rotation of the draw core, the grooves in the synthetic resin sheath or the synthetic resin tubes follow helical paths with periodically reversing directions of rotation.

Abstract: A head (10) for laying optical fibers (2) in alternating lay grooves (1A) in a cylindrical core (1), the head comprising a die-holder (11) interconnecting three dies: an inlet die (12); an indexing die (13) including indexing combs; and an insertion die (14); each optical fiber being guided through an orifice (12A) in the inlet die, then through an orifice (13A) in the indexing die, and finally being laid in a groove of the core by the insertion die, said head further including, upstream from the inlet die, a fixed mandrel (20) through which the core passes, said mandrel being constituted by a tube (21) having a front guide (22) disposed at its upstream end with the optical fibers passing through said front guide, said mandrel further including a series of rotating disks (23) located between said front guide and said inlet die.

Abstract: A slub yarn, in which a sheath component is wound around a core component to form a plurality of slub portions along the axis of the yarn, which structure is obtained by simultaneously false-twist texturing the core and sheath components. The slub yarn has a feature that the slub portion includes a multilayered winding structure of seven or more layers of the sheath component wound around the core component. A method for producing the slub yarn includes a step of overfeeding a sheath component to a core component in the direction substantially perpendicular to a passage of the core component in a twisting zone of a false-twist texturing machine while the sheath component is guided by a guide repeatedly traversed along a passage of the core component, a distance between the guide and the passage of the core component being kept in a range not shorter than 10 cm. An apparatus for randomly traversing the sheath component along the core component during the false-twist texturing process is also provided.

Abstract: A stranded rope (12) of large size is made by assembling a plurality of strands (10) and a core (11) side-by-side along a track (13); securing the leading ends in a clamp (14); securing the trailing ends in spaced anchorages (17, 18); applying tension to the strands (10) and core (11); guiding the strands (10) intermediate the clamp (14) and anchorages (17, 18) into the closed rope array round the core (11) by means of a closing die (20) on a trolley (19); moving the trolley (19) from the clamp (14) to the anchorages (17, 18); rotating the clamp (14) progressively as the trolley (19) moves progressively; rotating the trailing ends of the strands (10) and core (11) progressively in the same direction as the clamp (14); securing all the strands (10) and the core (11) together adjacent the trailing ends; and releasing the tension from the strands and the core.

Abstract: Method and apparatus for adjusting the lay of a wire rope, in which a torque remaining in the wire rope is detected while the wire rope is drawn out from a reel, and the lay of the wire rope is increased or decreased in accordance with the result of the detection to remove the residual torque; further, the pitch of lay of the wire rope after increasing or decreasing of the lay is measured, then the lay is increased so that the pitch of lay becomes smaller by a predetermined amount than the measured pitch of lay, and the pitch of lay before increasing of the lay is measured continuously in this state. When the residual torque becomes zero in the above torque control, the operation shifts to the above pitch control, and when the measured pitch of lay before increasing of the lay exceeds a predetermined range in the pitch control, the operation shifts to the torque control.