Abstract: For reinforcing rubber or plastics articles, particularly pneumatic tires, a wire filament is proposed which is spirally shaped and exhibits no elastic residual torsional stresses. A wire filament 8 according to the invention is produced by twisting drawn straight wire filaments 2 into the range of plastic deformation with subsequent return-twisting, at least two wire filaments being brought together and combined prior to return-twisting. Preferably at least two wire filaments 2 are brought together by means of a perforated disk 30, twisted about each other and plastically deformed in a false twister 20 and subsequently return-twisted in a further false twister 40.

Abstract: A fabric detwister comprises a housing with a bi-directional rotating cylinder contained therein. A chain and sprocket or equivalent drive mechanism rotates the cylinder in either direction as needed to remove a twist previously imparted to a continuous, elongated, flaccid fabric. Gutters are positioned on either side of the frame in order to effectively drain fluid squeezed from the fabric by a series of non-powered and powered rollers. Air jets positioned proximate the non-powered rollers inflate the fabric causing it to impinge upon the interior surface of the cylinder to effectuate proper detwisting.

Abstract: A twist detecting device is capable of detecting twist of band-like cloth even though the thickness of the band-like cloth is changed, and a twist eliminating machine incorporates the twist detecting device.

Abstract: The invention presented is a wire untwisting apparatus for untwisting a multi-wire cable. More specifically, the inventive wire untwisting apparatus includes a plate having a wire engaging face and wire securing face, the plate having at least four wire guides extending therethrough, and a shaft operably connected to the plate such that rotation of the shaft causes rotation of the plate.

Abstract: The present invention relates to an apparatus for unwrapping fiber optic cable (B) from an overhead line (A). The apparatus comprises a carriage (1) which sits on the overhead line (A) and is moveable along the overhead line (A) and a guide arm (2) mounted for rotation about the carriage (1). The guide arm (2) performs the unwrapping action of the fiber optic cable (B) from the overhead line (A). There is also a drum (3) and drum drive means (5), the drum (3) gathering the fiber optic cable (B) which has been unwrapped from the overhead line (A). There are also a device (6) for varying the speed of rotation of the guide arm (2) with respect to the forward speed of the carriage (1).

Abstract: A fabric detwister for continuously opening roped knitted fabric operating to open the roped fabric by moving the detwister arrangement in the direction of twist and as this occurs it actuated the turntable to move in the direction to remove the twist.

Abstract: A cabled yarn untwister untwists cabled yarn to obtain yarn components. The cabled yarn untwister includes an untwister frame that is rotated by a motorized drive unit (e.g., a hand-held electric drill). The untwister frame is preferably substantially T-shaped and includes a connector leg forming the base of the T-shape and a cross-wise extending yarn attatchment arm. The yarn components are attached to swivels disposed at opposing ends of the yarn attachment arm after which the untwister frame is rotated by the motorized drive unit while maintaining the cabled yarn under tension. Rotation of the untwister frame, in turn, causes the opposing ends of the yarn attachment arm to move in a generally circular orbital path and thereby untwist the individual yarn components of the cabled yarn.

Abstract: A improved upper level de-twisting mechanism is provided to facilitate the handling of rope form fabric as it is drawn from a bulk container, typically in wet condition, and conveyed to a processing operation, such as spreading. The mechanism includes a rigid support positioned under a lifting roller and mounting a poteye through which the fabric is drawn. Three or more grooved guide rollers engage the lower flange of the poteye, supporting it for rotation about its axis. A reversible drive motor is mounted along side the poteye and drive belts are trained about the drive motor output and the grooved external contours of the poteye for controllably rotating the poteye.

Abstract: A preform remover is more easily attachable to the conductor for removing a protective wire preform wrapped on an electrical conductor. The preform remover is also more easily operable by a single line worker, even in locations relatively inaccessible to the line crew. The preform remover eases the initial separation of the preform end from the conductor, and is also readily changeable to accommodate different wire sizes.

Abstract: A method of using an apparatus for unwrapping tangled, high voltage subconductors. The apparatus includes sheaves that hold each subconductor. Each subconductor is disposed in a gap between an upper and lower sheave. The invention can accommodate either two parallel subconductors, three subconductors arranged in a triangular formation, or a quad or rectangular arrangement. Once installed on the subconductors, the device is moved along the line so as to unwrap the subconductors.

Abstract: An untwisting nozzle is provided with a cylindrical untwisting space for receiving whirling air currents, having a relatively small diameter, a cylindrical yarn sucking space for receiving suction air currents, having a relatively large diameter and formed in parallel to the untwisting space, and a slit interconnecting the untwisting space and the yarn sucking space.

Abstract: Disclosed is a method of forming corrosion protection coatings on prestressing strands. It comprises the steps of untwisting sequential lengths of a prestressing strand; keeping the surrounding steel wires apart from the core steel wire to coat these steel wires with a synthetic resin; and twisting the coated steel wires to provide a prestressing strand of the original shape, thus permitting the separate coating of each steel wire, leaving, on the prestressing strand surface, the helical dent as deep and wide as the noncoated prestressing strand to assure the bond of the twisted wire to the surrounding concrete as firm as the noncoated prestressing strand. Also, an apparatus for carrying out such coating method is disclosed.

Abstract: The device involves the use of two nozzles (5 and 6) alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.

Abstract: A device for continuously imparting a predetermined twist to an elongated tubular shaped flaccid work piece composed of first and second sets of arcuate shaped spaced apart ribs delimiting a space having a funnel shaped portion, a moving device affixed to the first and second set capable of moving the first and second set of ribs in misalignment with one another, and a device for supplying gas under pressure to the space delimited by the first and second sets of ribs.

Abstract: A corrosion resistant PC steel stranded cable for a pretensioning method has a core wire and a plurality of side which are coated firmly for the corrosion proof with paint of a synthetic resin material while maintaining a stabilized stranded condition. The cable comprises the single core wire and the plurality of side wires disposed in a closely contacting relationship with each other and also with the core wire in such a manner as to define a plurality of spiral air gaps between the core wire and the side wires and also to define a plurality of spiral recessed grooves between individual adjacent ones of the side wires on the outer side of the side wires. Each of the core wire and the side wires are processed by blueing in advance. Paint of a synthetic resin material is filled in the spiral air gaps, and a coating layer of paint of a synthetic resin material is formed substantially with a uniform thickness on an entire outer periphery of the side wires including the spiral recessed grooves.

Abstract: A composite material, particularly useful for prestressing concrete and in stay cables for cable-stayed bridges and other such uses where strength, corrosion resistance and resistance to fatigue failure are particularly important, comprises high strength wire strand coated and impregnated with an impermeable and strongly adherent epoxy based resin. The impregnated and coated epoxy increases the flexural stiffness of the composite against bending fatigue in the areas of the anchorages in dynamically loaded situations and reduces relative movement and rubbing of the wires of the strand so as to reduce fretting and hence fretting fatigue, the principal mechanism for failure in dynamically loaded strand.

Abstract: A yarn splicing device for piecing spun yarns without knots. It contains a yarn splicing chamber and a small pipe through which fluid flows, at a distance from the yarn splicing chamber. The small pipe serves to receive a yarn end and to prepare it for the splicing process. The small pipe has a roughened inner surface which makes contact with the yarn end in a battering manner. In the process for the yarn end preparation, the small pipe is traversed turbulently by a fluid. The yarn end is battered by the turbulent flow against the roughened inner surface of the small pipe until the yarn end is free of twist.

Abstract: The method involves the use of two nozzles (5 and 6) which alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symmetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.

Abstract: A method of untwisting sized yarn in a yarn splicing device, which comprises applying a solution to the ends of sized yarn to dissolve a size to thereby untwist the yarn at the ends thereof when they are joined together by a whirling stream of air.

Abstract: A yarn untwisting device in a pneumatic yarn splicing apparatus which includes an untwisting nozzle for guiding an end of cut yarn; a gas feed device for feeding a gas stream into the nozzle; a liquid feed device for spraying liquid to the yarn end which has been sucked into the nozzle; and a liquid recovering device connected to the nozzle.

Abstract: The invention relates to the wet processing in particular of knitted tubular material in the broad tubular state which in a first processing section is led through a fluid bath then inflated to form a balloon section and afterwards led in the broad tubular state through the gap between a pair of squeezer rollers. Within the fluid bath the incoming material in hank form is subjected to twist sensing and if any twist is detected the incoming tubular material is rotated in the region before the first processing section to undo the twist. The completely and stably relaxed and untwisted tubular material leaves this first processing section in a stable broad tubular state and can then be passed in an optimum manner through the succeeding principal processing sections.

Abstract: A long-distance transmission fiber optic cable system suitable for outdoor aerial installation includes a continuous length of non-metallic messenger cable with an aramid fiber, tension load bearing core and a predetermined tension load bearing strength and a polymer outer jacket adapted for outdoor exposure and a continuous length of fiber optic cable, longer than the continuous length of non-metallic messenger cable and including a plurality of fiber optic waveguides within an outer polymer jacket adapted for outdoor exposure and having a tension load bearing strength less than the predetermined tension load bearing strength, and preferably non-metallic, helically wound around the continuous length of the non-metallic cable so as to permit free axial movement. Continuous lengths of 40,000 feet or more of the preferred non-metallic messenger cable and fiber optic cables suitable for outdoor use have been made.

Abstract: In order to spread optical fibers emerging from an end of cable and to firmly attach the cable end with ends of protective jackets in which the spread fibers are strung, the following steps are performed by means a spreading device including mainly a grooved hollow distributor. The distributor is fastened to a sawn off end of a grooved elongated ring in the cable by pinching a central armature emerging from the cable, by jaws housed in the distributor. A split ring is strung around a grooved revolution portion of the distributor. For each fiber, a longitudinal slot of the split ring and a respective groove of the revolution portion are superposed, the end of the jacket of the fiber is entered into the groove through the slot, and the jacket is forced into the groove by partially rotating the split ring so as to superpose the slot and another distributor groove.

Abstract: Apparatus and method for removing real or false twist from a moving fabric in rope form. Fabric is moved along a first path followed by second and third generally vertical paths which define a fabric loop. A twist removal device is located along the first fabric path to remove twist from the fabric. A fabric opening or spreading unit is located along or downstream of said third path with a twist detector located between the fabric opening unit and the nadir of the fabric loop, preferably adjacent the location where the fabric is just begins to spread for detecting direction and magnitude of any twist remaining in the fabric. Controls are operatively associated with the twist detector means and the twist removal device to control further twist removal responsive to detected remaining twist in the fabric.A preferred twist detector includes spaced parallel cylindrical rolls contactable with the fabric rope on opposite sides thereof.

Abstract: An embodiment assembly for the impregnation of a continuous length of fibers comprises a convex surface and a non-convex surface over which the length of fibers is drawn under tension. The pressure of impingement on the surfaces alternately separates and consolidates the fibers in sequence during their impregnation with the resin, to obtain a complete and homogeneous impregnation.

Abstract: Apparatus and method for removing real or false twist from a moving fabric in rope form. Freely rotatable, diagonally opposite elements are located on opposite sides of an fabric path of travel. Each element has a helically wound fabric contact member therearound with the helix direction of the diagonally opposite elements being the same. Fabric passing between the elements and engaging the contact members of the elements imparts rotation to the elements while the contact members impart rotation to the fabric for twist removal. A twist direction detector is located downstream of the elements to detect any remaining twist in the fabric, and a twist measurement sensor is located downstream of the twist detector to determine the amount of any remaining twist.

Abstract: Separate strands of embroidery floss are separated by drawing a bundle of strands of the floss through a slot and then separating individual strands which have passed through the slot and threading them through different non-aligned, spaced-apart slots by providing a tension on the downstream strands sufficient to pull them through the various slots.

Abstract: Wire which has been wound upon a spool or into a coil using a flyer which imparts a twist to the wound wire is unwound from the spool or coil by being withdrawn over an end of the spool or coil in a direction which neutralizes a twist and results in the unwound wire being twist-free.

Abstract: An apparatus for untwisting a multi-ply yarn over a predetermined portion of the length thereof has an untwisting element provided with two contact surfaces which face one another and between which the multi-ply yarn is guided and whose mutual spacing is greater than the thickness of each of the individual strands forming the multi-ply yarn and smaller or equal to the thickness of the multi-ply yarn, at least along a line transversely of the longitudinal direction of the multi-ply yarn. The contact surfaces are displaced relative to one another in mutually opposing directions transversely of the longitudinal direction of the multi-ply yarn. Torque is then relay transmitted to the multi-ply yarn and leads to the untwisting of the multi-ply yarn.

Abstract: A twisted textile web is detwisted by continuously withdrawing the web from a supply and passing the web longitudinally along a path and over a curved deflecting surface formed by a roller that deflects the web and divides the path into an upstream leg and a downstream leg that are out of alignment with each other. The deflecting surface can pivot about a pivot axis which passes through a pivot located to the upstream side of a straight line passing through the center of curvature of the deflecting surface and angularly equispaced between the legs. In a central position of the deflecting surface the two legs, the surface, and the pivot are all coplanar so that a twist in the web will pivotally deflect the surface in a direction depending on the direction of twist. The extent of pivoting is detected and the web is detwisted in the upstream leg in response to the detected pivoting of the surface.

Abstract: A wet treatment machine, notably for dyeing or bleaching of fabrics in rope form, is equipped with a dyeing system and includes means for circulating, storage and folding, and fabric unloading means.

Abstract: Apparatus for untwisting a textile length which has become gathered and twisted into rope-like form includes a rotatable guide through which the textile is passed in a manner such as to be constrained for rotation therewith. The guide is rotatable by a reversible drive. Twist detecting means comprising two mutually axially-displaceable rifled rollers, are arranged to control the drive such as to rotate the guide in a sense dependent on the detected sense of twisting of the textile. To avoid the need for conventional bearings in the mounting of the guide, opposite ends of the guide are provided with respective annular tracks engaged by respective groups of rollers rotatably carried on a support structure. One of the track-engaging rollers is driven from the drive to cause rotation of the guide.

Abstract: For powder filling of cables, in a fluidized powder bed, it has been proposed to pass the cable core through the bed in a substantially closed condition. There is a limit to the number of conductors a core can have for effective filling. In the present invention the cable core is opened up into a number of core units by passing through an opening member. The opening member is freely ridable on the cable core and has a hole for each unit. The opener is held against a support member and an air bearing formed between the two members. Air is also usually fed to the holes in the opener member through which the core units pass to prevent flow of powder out from the bed. The opening member can be positioned in the fluidized bed or outside immediately prior to passage of the cable core through the bed. The units are each in a substantially closed condition in the bed and the units close to a single core also in the bed.

Abstract: For powder filling of cables, in a fluidized powder bed, it has been proposed to pass the cable core through the bed in a substantially closed condition. There is a limit to the number of conductors a core can have for effective filling. In the present invention the cable core is opened up into a number of core units by passing through an opening member. The opening member is freely ridable on the cable core and has a hole for each unit. The opener is held against a support member and an air bearing formed between the two members. Air is also usually fed to the holes in the opener member through which the core units pass to prevent flow of powder out from the bed. The opening member can be positioned in the fluidized bed or outside immediately prior to passage of the cable core through the bed. The units are each in a substantially closed condition in the bed and the units close to a single core also in the bed.

Abstract: A method and apparatus for separating twisted wires, such as switching cables, has a rotatably driven central shaft to which a cable to be untwisted is co-rotatably mounted so that the cable ends are free. The cable is rotated inside of a stationary protective housing, having paddles movably mounted in the interior of the housing to momentarily engage the free cable ends as the cable rotates. The wire ends are thus diverted from the rotating plane at least twice per revolution, and are thereby stimulated to oscillate such that untwisting results. The angle of inclination of the paddles is selectively adjustable to adapt to cables of various numbers of twisted pairs and differing wire gauges.

Abstract: For powder filling of cables, in a fluidized powder bed, it has been proposed to pass the cable core through the bed in a substantially closed condition. There is a limit to the number of conductors a core can have for effective filling. In the present invention the cable core is opened up into a number of core units by passing through an opening member. The opening member is freely ridable on the cable core and has a hole for each unit. The opener is held against a support member and an air bearing formed between the two members. Air is also usually fed to the holes in the opener member through which the core units pass to prevent flow of powder out from the bed. The opening member can be positioned in the fluidized bed or outside immediately prior to passage of the cable core through the bed. The units are each in a substantially closed condition in the bed and the units close to a single core also in the bed.

Abstract: A twist detecting device for use in a detwisting apparatus for a roped web of knit or woven fabric in a fabric processing system comprising a pair of sensing drums each having a plurality of axial grooves formed on at least a portion of the circumferential surface thereof and spaced apart from each other so that said roped web passes between said drums in a direction generally parallel with said grooves; means for supporting said drums rotatably about their respective axes so that as said twist in said rope is tightened, engagement of said twisted rope with said grooves on either one or both of said drums causes simultaneous rotation of said drums in the same direction, the direction of said rotation depending on the direction of said twist; and means for detecting said direction of rotation to produce a corresponding electrical signal which actuates a detwister so as to decrease or remove said twist in said roped web.