Abstract: A reverse stranding apparatus for the reverse stranding of conductors to produce cables or the like and to a method in connection with stranding and reverse stranding. The conductors are drawn from a distributor into a nozzle or equivalent through peripheral tubes circumferentially surrounding a central tube and being twistable about the central tube recurrently in opposite directions. To facilitate the passage of the conductor, a pressurized fluid is fed through the peripheral tubes upstream ends and into the peripheral tubes during the drawing of the conductors to produce oscillation, whereby the conductors passing through each peripheral tube remain substantially detached from the inner surfaces of the peripheral tubes.

Abstract: A guiding roller for threads, in particular elastomeric threads, on textile machines, in particular knitting machines, includes a shaft which carries the guiding roller and is supported at its ends on both sides of the guiding roller in bearing recesses. The bearing recesses are designed so as to go right through, the ends of the shaft taper towards the bearing recesses, and these ends penetrate the bearing recesses with play and protrude beyond these recesses.

Abstract: In a spinning method in which, after a bundle of fibers has been drafted, the fibers are introduced into a twisting device using an air jet. The fibers are formed into bound spun yarns by the twisting device and are wound on a package by a winding device. The spinning method includes the steps of arranging and doubling at least two spun yarns upstream from where a twisting torque applied to the spun yarn by the twisting device disappears, entangling the spun yarns by the residual twisting torque, and thereafter winding them on a package.

Abstract: A method and apparatus is disclosed for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the simultaneous cutting of the yarns of all of the stations at the end of the winding cycle, the replacing of the full packages with empty bobbins, the threadup of the empty bobbins, and the simultaneous commencement of the yarn traverse at all of the stations.

Abstract: A highly filled yarn is formed by melt spinning a thermoplastic fibre-forming polymer containing at least 25% by weight of a particulate filler through a spinneret to form a continuous multi-filament yarn. The filaments are drawn away from the spinneret at a rate sufficient to orientate the yarn at least partially. The filaments pass around a guide between the spinneret and the draw means; the direction of travel of the filaments is diverted by means of the guide through an angle of at least 30.degree.. The yarns produced have increased strength and decreased extensibility.

Abstract: A retaining rod of a roving guide is engaged in a carrier beam and secured by a resilient support member which also prevents any transmission of vibrations. The roving guide has a deflector for rovings each associated with a groove. The grooves are offset from the vertical center-plane of the machine.

Abstract: In a device for the piecing of a yarn on an open-end spinning device, a yarn mover by means of which a yarn end is fed to a yarn draw-off pipe is provided. A first stop to determine the cutting position and a second stop to determine the yarn insertion position are assigned to the yarn mover. The first stop can be put out of action. In addition, a yarn length adjusting device is provided to determine the length of yarn to be fed back into the open-end spinning element. The cutting position and the yarn insertion position of the yarn mover are set for the smallest size fiber collection surface of the open-end spinning element that can be used. When larger fiber collection surfaces are used, the additional required length of yarn is readied by rotating the winding device backward.

Abstract: An arrangement is disclosed for carrying out a yarn piecing at a spinning point of a spinning machine. The arrangement includes devices for connecting the old and the new yarn, devices for the intermediate storage of the yarn length of the new yarn produced during the connecting, and devices for winding the connected yarn onto a spool package. It is provided that a control device for the drive of the package spool is connected to a device for determining the expected point in time of the using-up of the intermediately stored yarn length and controls the reduction of the speed of the devices for the winding-up.

Abstract: Apparatus for laying an optical fiber unit into one of a plurality of parallel helical or reversing helical grooves in the outer surface of a cable core conveys the core along a path. A downstream guide is freely rotatable about the core path and has an aperture for feeding the fiber unit into the groove and an inward projection for following one of the grooves to maintain registration of the downstream guide with the groove. An upstream guide is indpendently rotatable about the core path and adjacent the downstream guide, and guides the fiber from a fiber supply toward the downstream guide. A servo drive is responsive to the rotation of the downstream guide relative to the upstream guide to drive the upstream guide such as to reduce that relative angle.

Abstract: A fiber optic canister (14) is tested by drawing an optical fiber (12) from a generally cylincrical bobbin (16) upon which is is wound, in a direction parallel to the longitudinal axis (18) of the bobbin (16). The optical fiber (12) is directed toward the drawing location (30) of the payout drive (20), and transverse vibrations in the optical fiber (12) are damped, by a guide (40) formed as a series of spaced-apart guide rings (42) having their centers aligned along a common axis (50) that is preferably coincident with the axis (18) of the bobbin (16). The guide rings (42) have central apertures (44) that decrease in diameter from the guide rings (42) nearest the canister (14) toward the payout drive (20), defining a converging locus (36) for the optical fiber (12) as it travels from the bobbin (16) to the payout drive (20).

Abstract: In a spinning machine having a plurality of spinning units, which each produce a package having a double yarn, which is used as a feeding package for twisting, and having devices for carrying out the piecing, it is provided that a suction gripper is constructed such that it can simultaneously take in two yarns from false twisting elements, which are arranged at a distance from one another.

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 yarn guide device for a two-for-one twister comprises a guide pipe disposed upright above yarn packages placed on a spindle, which guides yarns unwound from the yarn packages into the bore of the packages from above the same, and a freely rotatable ring member provided on the guide pipe to be contacted with the yarns and to bend slightly a yarn path at the peripheral end thereof. The ring member is rotated by the yarns released from the package in a direction of releasing of the yarns.

Abstract: An apparatus for making a yarn consists of at least one ring spinning mechanism and a drawing mechanism, which precedes the ring spinning mechanism and defines at least one draft path for drawing a fibrous roving and includes two delivery rollers defining a clamping nip for the drawn roving, wherein one of said delivery rollers constitutes behind the clamping nip a guiding surface for deflecting the drawn roving. In order to increase the strength of the yarn, it is proposed that the delivery roller which constitutes the guiding surface for deflecting the roving constitutes at least near the delivery end of the guiding surface a slideway for guiding the roving transversely to its axis as the roving is twisted between the ring spinning mechanism and the drawing mechanism.

Abstract: A yarn feeding funnel for a textile spinning machine having an upper shaft portion and a body portion. An axial yarn passage extends through the shaft portion and an outlet passage extends at an inclination downwardly and outwardly from the axial passage to an opening on the surface of the body portion. The body portion above the opening extends to a greater axial extent than the opening and may be an inverted frusto-conical shape or a torus shaped flange or a cylindrically shaped flange. Alternatively the opening may be in an annular recess in the body portion.

Abstract: A yarn feeding funnel for a textile spinning machine having an upper shaft portion and a body portion. An axial yarn passage extends through the shaft portion and an outlet passage extends from the axial passage to an opening on the surface of the body portion. The body portion has an outer surface of substantially constant inclination with respect to the axis of the funnel and of sufficient extent to substantially prevent the yarn from moving radially outwardly away from the funnel during its travel thereover.

Abstract: A cabling machine comprises several cabling stations (2) each of which comprises a spindle (3), a thread combining means (7) which is disposed thereabove on a horizontal support arm (8), a delivery device (20) disposed thereabove, and above the delivery device a take-up device (22, 23). The support arm (8) can be pivoted about a vertical pivot axis (S). On the support arm (8) in extension of the spindle axis (A) are disposed a first guide roller (13), offset in a direction towards the longitudinal center plane (M) of the machine a second guide roller (14), between these two the thread monitor (15) and a thread cutter (16), and a third guide roller (18). The delivery device (20) is offset from the spindle axis (A) towards the longitudinal center plane (M) of the machine.

Abstract: A device for automatically spinning-in yarn in spinning units of open-end rotor spinning machines improves the process of leading the spinning-in head of the device onto the take-off tube of the spinning unit by using simple means.According to the invention the spinning-in head is attached to a swing lever by attaching means kinematically firmly in the plane of its swing motion but resiliently in the direction perpendicular to said plane, in order to allow the spinning-in head to move across the mouth of said take-off tube while being lead by a lead-on cone.

Abstract: Improvements to a spinning system (10) having a rotary balloon checking device (16), the checking device (16) consisting of an upper cylindrical portion (27) and lower frustum-shaped portion (28) which surround a yarn package (14) being formed, the upper portion (27) being upheld by a support (17) with bearings which is solidly fixed to a rail (19) of a spinning machine, the yarn (22) on arrival from a drafting unit (20) of the spinning machine forming a balloon between a thread eye (21) and the top of the checking device (16) and thereafter constituting an inner controlled segment (125) and an outer segment (225) able to slide on the checking device (16) during its descent to be wound on the yarn package (14), the yarn (22) being guided (29) at the lower edge of the frustum-shaped portion (28), the improvements comprising:the outer slidable segment (225) of yarn positioned in correspondence with the upper part of the upper cylindrical portion (27) of the checking device (16), andan element (31) to guide the

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: In the case of a process and an arrangement for pneumatic flase-twist spinning having at least one pneumatic false-twist nozzle arranged between a drafting roller device and a withdrawal device, it is provided that the reversing of the twist applied to the sliver by the false-twisting nozzle is at least partially prevented and that fiber ends are spread away from the sliver in the area having an at least reduced twist. In certain embodiments, it is provided that the sliver is only prestrengthened by means of the false-twist spinning and is finished by a subsequent spinning or twisting process.

Abstract: A plurality of grooves are formed in an outer surface of a spacer. The grooves are formed continuously in the longitudinal direction by a die which surrounds the circumference of the spacer. The grooves extend, in the form of parallel periodically reversing helices along the longitudinal direction of the spacer. The optical fibers are guided into the grooves through guide plates arranged to rotate in a reciprocating motion about the spacer. The position of the grooves is detected and converted into an electric signal. The operation of an actuator for driving the movement of the die and the guide plates is controlled on the basis of the electric signal thereby rotating the plates and the die in synchronism with displacement of said grooves.

Abstract: This invention is a device for unwinding and guiding yarn from a feed bobbin located in a feed box. The device has an arm which is rotated by the tension of the unwinding yarn. More specifically, this invention is a device for unwinding and guiding yarn which has first unwinder arm rotating around the bobbin rotatably connected to a pivot positioned above the spindle head, and a second unwinder arm rotatably connected to the spindle for producing twisted yarn. The first unwinder arm is supported by a frame which is connected to the box containing the two superposed bobbins so as to allow the second unwinder arm to rotate within the rotatable trajectory of the first arm.

Abstract: A textile apparatus is disclosed wherein a cylindrical package of strand material is mounted on an elongated hollow spindle and the strand material is withdrawn from the package and through the hollow spindle for further processing. A flyer arm is mounted on an extremity of the spindle for rotation thereabout with the arm extending radially outwardly of the spindle to overlie the outer circumference of the package. An adjustable strand tensioning device is mounted on the flyer adjacent the longitudinal axis of the spindle and longitudinally spaced from the end of the spindle and within an envelope defined by the path of movement of the strand material as it is guided by the flyer arm from the package into the hollow spindle.

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: In the case of a process and an arrangement of producing spools containing two yarn components respectively and serving as feed spools for a twisting process, it is provided that the two yarn components that are each prestrengthened by means of false-twisting nozzles, are guided between a drafting frame and the spool on paths of different lengths, so that nonuniformities of the two yarn components that may have occurred during the drawing are not disposed directly next to one another.

Abstract: A method and a device for improving a yarn produced with genuine twist in the rotor of an open-end spinning apparatus directs the yarn through a yarn take-off nozzle in a given yarn travel direction. The yarn is subsequently diverted from the given yarn travel direction first to one side and then back to the opposite side over false-twist edges disposed obliquely relative to the given yarn travel direction including a last false-twist edge. Outer fiber ends of the traveling yarn are spread radially apart after passing the last false-twist edge. The yarn is subsequently passed through a pair of delivery rollers.

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 false twist crimping machine is disclosed which is adapted for processing synthetic yarn, and which includes a novel means for the thermal treatment of a yarn at high processing speeds of 1,200 meters per minute and above, and without increasing the overall size of the machine. The yarn thermal treatment means includes a yarn heating plate and a yarn cooling plate. The yarn heating and cooling plates preferably each include a curved yarn path guideway to provide efficient and reliable yarn contact of the advancing yarn with the curved guiding surfaces, and at least the yarn cooling plate extends above a service aisle provided between the central frame of the false twist crimping machine and a yarn supply creel spaced from and extending parallel to the central frame.

Abstract: A method for sealing a passage (2) in a wall (3) for the unsupported transport of continuously accumulating tows (1), in which the pressure difference on both sides of the wall (3) is compensated by an additional gaseous medium (5).

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: An invention for spinning with a balloon controlled by a checking device is disclosed. The invention is set in rotation by a spindle by means of a yarn, comprising the arrangement of a segment of free yarn constituting a balloon having a controlled and constant height and diameter of base and also comprising the arrangement of a guided segment of yarn downstream of the segment constituting the balloon. Also, the invention is for spinning with a rotary balloon-checking device, comprising a rotary checking device positioned about a yarn package and a tube and having a rotatably supported upper portion and a lower portion performing the function of distributing the yarn on the yarn package, wherein the checking device is open at its upper end and has a pre-determined diameter to contact the yarn.

Abstract: A resin-stripping die for mounting in a holder on a filament winding machine comprising a body formed of resiliently flexible heat and wear resistant material with a converging, preferably tubular, passage which is slit longitudinally at one side throughout its full length to permit lateral movement of the die onto and off a filament strand. In operation, the die is mounted in a fixed axial position in the holder.

Abstract: An apparatus for open-end spinning is provided which includes a twisting element for twisting yarn. A yarn withdrawal nozzle is provided downstream from the twisting device in a yarn withdrawal direction. A yarn withdrawal device downstream from the yarn withdrawal nozzle withdraws yarn from the twisting device. A yarn deflection device is provided for deflecting yarn downstream from the yarn withdrawal nozzle. The yarn deflection device includes at least one false-twisting edge. The yarn deflection device includes a first deflection which deflects the yarn in a first direction and at least one additional deflection downstream from the first deflection which deflects the yarn into a direction deviating from the first direction.

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: The spinning machine, particularly a ring spinning machine, comprises a set of drafting rolls, in which roving which runs from roving bobbins mounted over the set of drafting rolls is drawn. Between the roving bobbins and the set of drafting rolls a guide tube is mounted for guiding the roving.

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: Device for regulating the tension of a thread through the different transformation operations to which said thread is subjected during its manufacture, said device being of the type forming an assembly comprising cups between which passes the thread, said cups being mounted on a hub and locked in position one against the other by way of a nut, and said hub being mounted on a rotary shaft which is common to all the positions of one face of the machine, device wherein: the cups are mounted in pairs on either side of a cylindrical track which is fast in rotation with said cups, said track having a diameter at least equal to the diameter of the circle of contact between the two cups, and said thread being, while thrown, in contact with the central cylindrical track, and after throwing, pushed back onto the side tracks constituted by each pair of cups in order to be placed in the normal working conditions after throwing; and the nuts holding each pair of cups one against the other enable a variation of their press

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 relatively heavy sliver creel frame is suspended from an overhead support by relatively stiff wires whose angle to the creel in combination with the weight of the creel minimize horizontal creel sway. A pair of additional stabilizing links connect the creel to and cantilever it from a support structure spaced from the floor region over which the creel is suspended.

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: An apparatus for manufacturing spun yarn comprising an air jet nozzle and a belt type twisting device, the nozzle having a fiber bundle outlet facing the twisting device and including a fiber bundle guide which is connected to the fiber bundle outlet and has a rear end located close to the intersection of the two belts defining the twisting device.

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 device is provided for open-end friction spinning having two adjacently arranged rollers serving to form a yarn forming wedge-shaped gap. The rollers are disposed in essentially a vertical direction. A supply of fibers is directed through a fiber feed channel extending at a sharp angle from underneath the rollers to the wedge-shaped gap. The withdrawal device for the spun yarn is disposed above the rollers. Between the wedge-shaped gap and the withdrawal device there is arranged a turning guide which first withdraws the yarn opposite the feeding direction in the longitudinal direction of the wedge-shaped gap and then turns the yarn and withdraws it to the withdrawal device disposed above.

Abstract: A guide device (20) for separating a plurality of yarn passages comprising:a rod member (24) movable in its lengthwise direction;a plurality of slide members (25a-25d), provided with yarn guides (22) and movable along the rod member (24);the rod member (24) and the slide members (25a-25d) are inserted into and movable along a hollow cylindrical guide rail member (21);the rod member (24) having at least a pair of guide pulleys (30), which sandwich the slide members (25a-25d) between them;a strand-like member (28) wrapping around the guide members (30);the strand-like member (28) is connected to one of the slide members (25a-25d) and a stationary member;connecting members (26) having engaging members (26b) at ends thereof are loosely inserted between adjacent slide members (25a and 25b, 25b and 25c, 25c and 25d); andthe distance between the engaging members (26b) of the connecting member (26) is equal to the sum of the distance between the yarn guides (22) under yarn passages separating condition and the thickn

Abstract: An improved spindle top having between 3 and 8 fingers together in association with yarn-catching, yarn-directing grooves provides advantages in the manufacture of spun yarns. The improved top reduces ends down by reducing tension upstream of the spindle top, and the improved top is also believed to reduce the amplitude of tension surges which occur as the yarn rolls from one catch point on the spindle top to another.

Abstract: A device for feeding-in a thread end through a thread draw-off channel of a thread guiding element into a spinning nip of a friction spinning device includes a pressurized-gas injection device in the thread guiding element for producing an air flow in the thread draw-off channel opposite in direction to that of a thread draw-off direction of a spinning operation in the friction spinning device, whereby a thread end is entrained thereby, the thread draw-off channel continuing along the spinning nip from a termination thereof in the thread guiding element.

Abstract: A process and apparatus for laying optical fibers in the helical grooves of a core for an optical fiber telecommunication cable in which the rotatable bobbins carrying the optical fibers are held in axially fixed positions while the core with helical grooves and the fibers are fed to and through a rotatable fiber inserting device which has projections extending into the grooves which cause rotation of the device as the core is advanced. Between the bobbins and the fiber inserting device there is a supporting tube through which the core passes and the outer surface of which engages and supports the fibers. The downstream end of the tube terminates in advance of the fiber inserting device so that the fibers may enter the grooves in the core at the fiber inserting device.

Abstract: A method of and a device for providing a concentric layer of wire material on a cable (C), in which a number of wires (G) are taken simultaneously and in a tangential direction off a common rotating feed reel (27) on which the wires (G) are wound parallel to one another. The wires (G) are guided into the axial direction, are spread in the circumferential direction and are wrapped around the cable (C), which passes through a hollow shaft (11) supporting the feed reel (27). The method can be used both for armouring cables and for providing a screening.