Abstract: A workstation (1) of a two-for-one twisting or cabling machine which comprises a rotatably mounted spindle (2) and a balloon-yarn-guide-eye (9) height-adjustable by means of a drive (18, 29) coupled to a control device (20) which controls the drive (18, 29) in such a manner that it displaces the balloon-yarn-guide-eye (9) between operating positions (AP1, AP2) dependent upon production parameters and a resting position (RS) advantageous in the case of production interruptions and transient operating phases associated with the latter. A device (21, 23, 24, 25) is present for detecting a measured value (i), which is made available to the control device (20) and which causes the control of the drive (18, 29) to change the position of the balloon-yarn-guide-eye (9).

Abstract: Method for operating a two-for-one twisting or cabling machine (1) with multiple workstations (2), each equipped with at least two feed bobbins (6, 13), one feed bobbin (6) being creeled on a spindle (3) of the workstation (2) and at least one further feed bobbin (13) being creeled on a creeling device (12) associated with the workstation (2). The yarns (7, 15) of the feed bobbins (6, 13) are guided together in a balloon yarn guide (5) and cabled, and the cabled yarn is wound to form a take-up bobbin (16). The feed bobbin (6) creeled on the spindle (3) has half the weight of the take-up bobbin (16) to be produced and the dimensions of the spindle (3) are adapted to the diameter of the reduced feed bobbin (6).

Abstract: Yarn loops are unwound from a stationary weft-winding drum during a weft insertion. A weft-braking device locks the yarn unwinding from the drum at the end of the insertion, and comprises at least one braking member which is arranged by side of the drum near its delivery end and is movable under control of an actuator between a resting position in which it is spaced from the outer surface of the drum and does not interfere with the unwinding yarn, and an operative position in which it engages the outer surface of the drum and cooperates with it to brake the yarn.

Abstract: The invention relates to a method for spinning staple fibres on ring-spinning machines, wherein a staple fibre composite is drawn in a drawing frame and, during exit from the drawing frame, is twisted to form a thread and is wound up by means of a traveler device. The fibre composite (F) which emerges from the drawing frame runs through a thread guide device (1) which has a twisting apparatus (10) which is equipped with a brake device (13, 13). The completely twisted thread (P) is guided over a spindle attachment (33) which is provided with grooves (32, 35), immediately after leaving the twisting apparatus (10). The method is carried out by way of an apparatus for spinning staple fibres on ring-spinning machines, which apparatus comprises a thread guide device which has a twisting element which is arranged at a spacing above the upper end of the ring spindle and is coupled to the ring spindle via a magnetic force field.

Abstract: A balloon control ring for a textile machine for limiting a circulating yarn balloon, wherein the balloon control ring comprising a metallic hollow cylinder with a wear-resistant surface, is characterised in that the hollow cylinder (2, 23, 37) is formed from a sheet metal strip, the hollow cylinder (2, 23, 37) is held by the end portions (3, 4; 14, 15; 38, 39) of the sheet metal strip, and an edge strip (8, 9; 10, 11; 55, 56) is folded round at the two edges of the hollow cylinder (2, 23, 37), with the sheet metal thickness of the sheet metal strip being at most 0.6 mm.

Abstract: A balloon control ring for a textile machine for limiting a circulating yarn balloon, wherein the balloon control ring comprising a metallic hollow cylinder with a wear-resistant surface, is characterised in that the hollow cylinder (2, 23, 37) is formed from a sheet metal strip, the hollow cylinder (2, 23, 37) is held by the end portions (3, 4; 14, 15; 38, 39) of the sheet metal strip, and an edge strip (8, 9; 10, 11; 55, 56) is folded round at the two edges of the hollow cylinder (2, 23, 37), with the sheet metal thickness of the sheet metal strip being at most 0.6 mm.

Abstract: The invention relates to a method and device for spinning with a suppressed yarn balloon (75), whereby the rotation of the yarn is predominately produced between a top spindle (2) and the clamping gap (523) of delivery rolls (521, 522) at the exit of the drafting system (5). The top spindle (2) is provided with one or a plurality of projecting parts in the head area thereof and extends with said projecting parts on the elongated axis of the spindle (1) from underneath up to a vertically displaceable yarn guide (3). The vertically adjustable yarn guide is displaced upwards and away from the top spindle in order to prepare an automated feed package changing. Afterwards, the ring tail (4) is lowered into the underwinding position. The aim of the invention is to provide a method which can also be used for flat and very fine yarns, especially combed yarns. To this end, the extended slubbing (71) which exits the drafting system is compacted while the yarns are maintained in a parallel position.

Abstract: The process is carried out on a spinning system that has a driven spindle (13) and a balloon limiter (14) concentric with it, driven in the same direction as the spindle (13) an provided with an inner work surface (44). For the purpose of reaching the high operating speed, the yarn (P) entrained by the work surface (44) and running toward the tube (23) on the spindle (13) is first always given by the centrifugal process the shape of a rotating, open loop (48), from which the yarn (P) is subsequently drawn off and coiled directly onto the tube (23). In this connection, this rotating, open loop (48) can be radially delimited by a rotating or stationary limit ring (28).

Abstract: A twisting spindle has a spindle that is driven in rotation, a protective pot supported on the spindle and secured against rotation, and a rotary disk fixedly connected to the spindle. The rotary disk has a radially extending yarn channel connected to the hollow spindle axle and supports a cylindrical mantle surrounding the protective pot. The cylindrical mantle has above the outlet opening of the yarn channel a yarn guide element. An intermediate housing that is freely rotatable and surrounds the rotary disk and the cylinder mantle is provided. A stationary outer housing receiving the intermediate housing is also provided.

Abstract: An integrated doubling and twisting method includes the step of arranging at least two supply bobbins coaxially above one another in a protective pot of a bobbin support. The at least two supply bobbins are connected to one another, and the bobbin support together with the at least two supply bobbins is rotated. The individual spun yarns from the bobbin supports are removed in the direction of the axis of rotation of the bobbin support. One of the individual spun yarns is removed in clockwise direction and another one of the individual yarns is removed in counterclockwise direction. This feature can also be applied to a method in which a balloon limiter is provided and the individual yarns are guided through a hollow spindle axle.

Abstract: Individual differently colored or colorable feed filament ends are withdrawn from respective creel-mounted packages and passed through a separation guide. The separation guide serves to "normalize" the filament end-to-end positions and tensions. That is, the separation guide will cause the individual feed ends to be in specific predetermined positions relative to the other feed ends regardless of the position of the package on the creel. In addition, the separation guide will effectively cause a short length of each feed end to be parallel to, and separated by a substantially uniform distance from, corresponding lengths of the other feed ends. This parallel alignment of individual end lengths and the substantially uniform filament end-to-end positioning thereby imparts substantially uniform tensions on the feed ends while substantially maintaining their respective positions in the combined yarn product relative to one another.

Abstract: A ring-spinning machine has spindles with head pieces, e.g. with fingers about which the yarn can be wound to reduce the ballooning of the yarn around the respective spindles. The thread-guide eyes above the headpieces can be depressed against a spring force from normal positions to enable the yarn to wind around the fingers and the spring force restores the eyes to their normal positions, thereby avoiding changes in the distances between the normal positions and the headpieces which may alter the spinning properties and yarn quality.

Abstract: A projectile or gripper shuttle loom includes a weft-yarn delivery device with an overend-unwinding delivery unit that has a stationary, brakeless drum, a withdrawal eye arranged coaxially downstream of the drum and a yarn brake controlled in accordance with the loom cycle. The thread path is enclosed by at least one hollow body extending from the circumferential face of the drum to the withdrawal eye at least in one axially limited segment. The hollow body has on its inner side coaxial to the drum axis a plurality of ballooning, disturbing and braking elements which protrude inwards without touching the drum while forming projections and deposit surfaces for the weft yarn.

Abstract: Device to control the yarn at the outlet of yarn feeders, particularly antiballoon device for weft yarn feeders of looms, of the type consisting of an element (10) having a substantially frustoconical surface. A plurality of ribs (11) project from the inner wall of said element, substantially extending along the generatrices of its surface.

Abstract: A cooling apparatus and method for cooling an advancing yarn, which includes an elongate cooling rail along which the advancing yarn is guided. At each end of the cooling rail, the yarn and the cooling rail are reciprocated relative to each other in a direction transverse to the direction of the advancing yarn, so that the yarn sweeps over the cooling surface of the cooling rail, thus facilitating the removal of a possibly developing condensate.

Abstract: In the course of rewinding yarn on a bobbin winding machine, the yarn performs a balloon-like oscillation around the delivery bobbin. The shape of the balloon has an effect on the yarn tension force and thus on the behavior of the yarn during winding. To reduce resulting tension fluctuations and particularly tension peaks, the course of yarn travel is influenced by means of a device in accordance with the present invention having an annular yarn guide surface comprised of a first set of guide surfaces collectively forming a part of a truncated cone the larger diameter of which is adjacent the delivery bobbin and a second set of guide surfaces collectively forming converging edges of an at least five-sided truncated pyramid with each pyramidal edge being disposed to extend axially between two adjacent first guide surfaces forming recessed notches in their collective conical surface.

Abstract: In a spinning apparatus including a rotatable spindle carrying a package for receiving a yarn from a yarn guide which is arranged in axial alignment with the spindle, a tubular element surrounds the package and the spindle and is floatingly supported by magnetic bearings and a second yarn guide is arranged so to be rotatable within the tubular element and receives the yarn for guiding it onto the package with a winding speed corresponding to the rotational speed difference between the spindle and the tubular element and sensors are arranged adjacent the tubular element for sensing any axial deviation of the tubular element from its desired position which axial deviation is taken as a measure for the yarn tension forces.

Abstract: An auxiliary yarn releasing apparatus which can control the releasing tension of a yarn of a thick yarn number count is proposed. The auxiliary yarn releasing apparatus is constructed such that a cover portion which covers over a substantially entire chase portion of a yarn supply bobbin is provided on a balloon controlling member which is put over a take-up tube as releasing of a yarn of a yarn supply bobbin proceeds.

Abstract: A method for optimizing the spinning geometry of a spinning machine in which the lengths of the path segments between the drafting output and rolls and the yarn guide, between the yarn guide and the balloon constricting ring, between the balloon constricting ring and the traveller, or other angles are controlled in response to the yarn break frequency and/or spinning force and, when necessary, the spindle speed is also controlled to minimize the spinning force. The system can use a fuzzy logic.

Abstract: A two-for-one twisting spindle has a protective pot with an upper edge and a bobbin carrier positioned in the protective pot for receiving two bobbins to be placed atop one another. A thread inlet tube extends axially through the bobbin carrier for receiving a first and a second thread withdrawn overhead from the bobbins. A thread guide ring is rotatable about the axis of the spindle. The thread guide ring has an eye for guiding one of the first and second threads withdrawn from the bobbins to the thread inlet tube, wherein the other of the first and second threads is guided about the periphery of the thread guide ring. A bristle ring is connected to the upper edge of the protective pot, the bristle ring having radially inwardly oriented, elastic bristles along which bristles the threads pass before entering the thread inlet tube.

Abstract: A spindle for manufacturing a yarn has a spindle body for receiving a fiber supply bobbin from which a fiber is removed radially outwardly to form a fiber balloon and guided to a centering point above the spindle body. A spindle rotor for rotating the spindle body has a central axis. A supply device for introducing a flowable medium into the space limited by the fiber balloon is provided. The supply device has an inlet line with an outlet opening. The inlet line has a section adjacent to the outlet opening extending at least directly upstream of the outlet opening coaxially or parallel to the central axis. At least a portion of the section is rotatable about the central axis and has a fiber guide tube comprising a first end that extends coaxially from the portion and a second end that extends radially from this portion.

Abstract: A spindle for manufacturing yarns has a spindle rotor with a central axis. A fiber guide duct extends substantially from the central axis radially outwardly for guiding a first fiber radially outwardly. The first fiber, after exiting the fiber guide duct, is guided under formation of a fiber balloon to a centering point that is located on an extension of the central axis of the spindle rotor. At least one inlet line that extends substantially radially toward the fiber balloon is provided for introducing a flowable medium into a space limited by the fiber balloon.

Abstract: A textile yarn processing machine has a plurality of spindle assemblies for processing of yarn. Each spindle assembly includes mechanisms for forming a balloon of yarn which rotates around a spindle assembly central axis as the yarn travels through the spindle assembly during processing and a balloon limiter device surrounding the rotating balloon of yarn and having a generally cylindrical inside surface for frictional contact with the rotating balloon of yarn to restrict the size thereof. Devices are provided which reduce frictional contact between the rotating balloon of yarn and the inside surface of the balloon limiter so as to avoid the necessity of the use of lubricators on the yarn.

Abstract: A spinning nozzle comprises first and second nozzles provided with jetting holes through which compressed air is jetted into tubular yarn passages extending along an imaginary center line of the spinning nozzle, and arranged in series coaxially with the imaginary center line, and the second nozzle is provided in its outlet end with a balloon controller having a through hole having substantially a triangular cross section. The size of the balloon is limited to that of a circle inscribed in the through hole of the balloon controller, so that twists inserted in the yarn in the second nozzle propagate stably to a portion of the yarn in the first nozzle.

Abstract: Excess liquid is removed from a fast-moving thread, in that the latter is deflected, so that the liquid is hurled off, the hurled off liquid is removed from the thread, in that the thread is passed through a closed chamber, where a vacuum is produced in order to facilitate liquid evaporation and in that the thread is led through a narrow gap, so that the layer directly surrounding the thread and travelling therewith is peeled off. The combination of these drying effects constitutes one process stage. Advantageously, this process stage is performed several times in direct succession, so that in the case of a thread-protecting, small deflection angle a good thread drying can be achieved. The process is performed by an apparatus comprising several chambers (K.1-3) connected in series in the thread movement direction, the thread being deflected at the inlet and/or outlet with respect to each chamber by a deflection element (U.1-4) and passes through a narrow gap (S.1-). The chamber walls (20.

Abstract: A draw texturing machine comprises a first heater for heating a yarn, a false twisting device for imparting twists to the yarn, and a cooling plate, disposed between the first heater and the false twisting device, for cooling the yarn which has been heated by the first heater and for inhibiting vibration of the yarn so as to allow the yarn to run in a stable manner. The cooling plate is provided with a yarn threading groove member having a bottom portion with which the yarn runs in contact and wall portions connected to the bottom portion to form a concave, downwardly directed opening. The wall portions of the yarn threading groove member are provided with a plurality of holes, and the bottom portion of the yarn threading groove member is provided with no holes.

Abstract: A ring spinning apparatus, which comprises a rotatably drivable spindle, which is adapted to carry and to be non-rotatably connected to a bobbin, a guide ring, which is coaxial to the axis of the spindle and serves to guide a traveler, which is adapted to revolve on the guide ring and constitutes a yarn guide, and an annular deflecting guide, which surrounds the bobbin and serves to deflect adjacent to the guide ring the yarn which is approaching the traveler. That ring spinning apparatus is characterized in that the projections of that yarn portion which is approaching the traveler from the deflecting guide and that yarn portion which is departing from the traveler in a plane that extends through the axis of the spindle include an angle that is smaller than 90.degree. and the projections of said approaching and departing yarn portions in a plane that is at right angles to the axis of the spindle include an angle that is larger than 90.degree..

Abstract: A textile yarn processing machine has a plurality of spindle assemblies for processing of yarn. Each spindle assembly includes mechanisms for forming a balloon of yarn which rotates around a spindle assembly central axis as the yarn travels through the spindle assembly during processing and a balloon limiter device surrounding the rotating balloon of yarn and having a generally cylindrical inside surface for frictional contact with the rotating balloon of yarn to restrict the size thereof. Devices are provided which reduce frictional contact between the rotating balloon of yarn and the inside surface of the balloon limiter so as to avoid the necessity of the use of lubricators on the yarn.

Abstract: For a balloon limiting device, which can be carried along by a travelling yarn, a magnetic bearing system is provided which suspends the balloon limiting device in the axial direction by permanent magnets and implements an electronically controlled radial stabilization having segmental coils.

Abstract: An apparatus for changing yarn carriers in a textile machine, particularly a ring spinning machine, funnel spinning machine or ring twisting machine, includes a revolver having an axis, a pair of spindles being disposed on the revolver symmetrically to the revolver axis and having axes, and the spindles of the pair being rotatable in mutual alternation between a spinning position and an unwinding or disposal position. According to one embodiment, the axes of the spindles of the pair are inclined relative to the revolver axis by an acute angle and diverge in a direction toward the free ends of the spindles. According to another embodiment, at least two pairs of spindles are disposed on the revolver for serving at least two adjacent spinning or twisting stations of the textile machine, and each two adjacent spindle axes are mutually parallel at a given spacing.

Abstract: A funnel for delivering yarn for building a package on a spindle of a spinning machine has an entry channel for the passage of yarn therethrough into the interior of the funnel and an exit opening for the passage of yarn therethrough from the interior to the exterior of the funnel, the interior of the funnel having a lateral extent sufficient to allow the formation of a yarn balloon of controlled extent during building of the package on the spindle. The funnel can contain a guide portion projecting interiorly of the funnel at a spacing from the entry channel and a neck portion in which the entry channel is formed.

Abstract: A yarn feeding funnel for a textile spinning machine having an upper shaft portion and a body portion. A yarn inlet opening in the upper shaft portion is radially offset from the axis of rotation of the yarn feeding funnel and facilitates the formation of a yarn balloon of controlled extent between the yarn inlet opening and a yarn guiding eye which is coaxial with the funnel rotation axis. A plurality of alternative yarn inlet openings, each at a predetermined, different radial spacing from the funnel rotation axis, may be provided to vary the characteristics, such as the diameter, of the yarn balloon formed between the yarn inlet opening and the yarn guiding eye.

Abstract: The cap of a cap spinning device comprises a thread introduction attachment in the top or upper region of the cap. In this thread introduction attachment there is arranged an inlet passage which is upwardly directed at an inclination and provided for the thread coming from the drafting arrangement via a thread eye, so that a balloon is formed between the thread eye and the top or upper side of the cap.

Abstract: An anti-ballooning can having the form of an enclosure surrounding the yarn winding over its entire height, characterized in that the enclosure has a cylindrical portion against which the ballooning yarn comes to rub over the entire height as it moves past, and which is extended by a likewise cylindrical zone which has a larger diameter and of which the end near the base of the winding is frustoconical in shape, its shorter section having a diameter slightly smaller than the diameter of the zone in contact with the balloon.

Abstract: In a winder, a cover is provided at a portion of the winder where fluff is very likely to occur; that is, the portion is the position of a yarn feed bobbin, and the cover operates to cover this portion, thereby enclosing the fluff therein, and a suction pipe is connected to a part of the cover to discharge the fluff by suction.

Abstract: A method and apparatus for manufacturing a frayless line is disclosed. The device includes a winder with a plurality of individually rotatable hooks mounted on its surface that rotates in a concurrent direction to the hooks, a spreader for separating groups of strands in a spaced apart manner at a selected point so the strand groups may be freely and easily twisted together, and a slidable rotatable support for twisting a plurality of individual group of strands together to form a line.

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: A ballooning control ring for spinning machinery which has an annular body made of sintered material having a groove in which lubricating a lubricating wick is disposed, a cover body covering said groove and a handle fitting body. The lubricating wick in the groove is connected to an automatic oiling device provided below the handle fitting body. This ring prevents oil-soiling of the annular body and consequently prevents production of oil-stained yarn.

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: According to the invention, a balloon ring is supported in concentric position about each spindle on a spinning frame by a bracket supported by a mounting rod that is in turn supported on the free ends of air cylinders mounted beside and correspondingly movable with the ring rail. The pistons in the air cylinders are initially extended to support the balloon rings at a first position. That position has been determined to be in an optimum area for control of the yarn balloon during movement of the ring rail through the lower portion of its traversing motion to build the bottom half of the package. As the rail ring begins to move through the upper portion of its traversing movements and the balloon rings approach the yarn transfer guides, a limit or proximity switch is activated to retract the pistons of the air cylinders and uniformly lower the balloon rings to a second or retracted position closer to the ring rail, and positioned to control the balloon while the upper half of the package continues to build.

Abstract: An apparatus for preventing scatter of fly in a winder having a plurality of winding units where a yarn is unwound from a yarn feeding bobbin and is taken-up on a take-up package. A first cover member for covering the yarn feeding bobbin unwound at a winding unit and a second cover member for covering a tenser portion are provided with each winding unit.

Abstract: A mechanism for pneumatically purging undesirable fiber fluff and dust from a spindle assembly of a two-for-one twister textile thread processing machine created during thread processing and particularly in the area of a rotating thread balloon and being characterized by utilizing air flow created by operation of the spindle assembly in processing thread without disturbing the rotating thread balloon is provided. The purging mechanism includes a housing jacket axially mounted on one end of a balloon limitor device and having a generally curved inner wall spaced from the axis of the spindle assembly rotor mechanism and the carrier mechanism a greater distance than the inner wall of the balloon limitor and a lateral opening on one side thereof, and a duct connected to the lateral opening and adapted to lead to a collecting container.

Abstract: A specially designed pigtail balloon guide for use with ring spinning frames is provided. The guide improves the performance of such frames with respect to sliver breaks and/or sliver throughput. The guide has a single-looped coil through which the sliver is threaded. The coil is designed so that during operation of the frame the coil is tilted with respect to the path of the sliver.

Abstract: A two-for-one yarn twisting spindle assembly having no balloon limitor utilizes a ring member for receiving a generally horizontal air flow and yarn emerging from the spindle assembly during pneumatic threading and deflects the air flow and yarn generally vertically upwardly therefrom along the outside of the spindle assembly, avoiding interference with adjacent spindle assemblies without the necessity of a conventional balloon limitor, for subsequent threading operations.

Abstract: Snarls are formed at winding machines and the like when the thread tension is reduced. By reducing the angle .alpha. which the thread forms with the end surface or face of the delivery bobbin or spool the friction between the thread and the bobbin edge can be increased to such an extent that no thread coils or turns can disengage from the surface of the delivery bobbin and become snarled even when the thread tension decreases. The reduction in the angle .alpha. may be achieved by lowering a thread guide eye towards the delivery bobbin, by lifting the delivery bobbin or by deflecting the thread at an extension or protection provided at the bobbin. Upon deflecting the thread at the extension a thread reserve can be provided by applying thread turns at the extension in a direction opposite to the thread turns wound on the bobbin and which thread reserve can be eliminated in a simple manner by withdrawing the same as a whole or in sections.

Abstract: A method of increasing the hairiness and bulkiness of a thread, in an open-end rotor spinning machine having a deflection ring disposed concentric to the axis of rotation of the rotor, includes forming a false twist in the thread with the deflection ring, continuously withdrawing the thread through the deflection ring substantially along the direction of the axis of rotation of the rotor, dissolving the false twist in the thread, forming a thread balloon with the thread, bringing the thread in contact with a multiplicity of separately disposed balloon disturbance elements, and changing the diameter of the thread balloon several times during each revolution of the thread balloon, and a device for carrying out the method.

Abstract: An improved balloon-control guide for use in end-unwinding packages of crosswound filamentary yarn. The guide comprises self-centering means for permitting the guide to self-center, under yarn balloon forces, towards an axis representing the yarn balloon's energy center at any point in time. Use of the guide, in otherwise conventional beaming operations, results in significant increase in productivity.

Abstract: An electromagnetic disc type tension control in which the yarn guiding post is slotted off-center between the discs so that the yarn being tensioned is received between the discs and exerts a torsional force on the tension discs to cause the tension discs to rotate in order to enhance the dissipation and self-cleaning of the yarn finish accummulated therebetween.

Abstract: Method and apparatus to produce a continuous filament textured yarn with unusually low crimp contractions and intermittent crimp along its length. This is accomplished by the use of an electromagnetic tension device to control the draw in the yarn being supplied to a false twist device driven at a speed to provide low false twist in the yarn being twisted. The apparatus includes a control between the electromagnetic tension control and the yarn supply package to prevent the yarn coming off the package from rotating in a full balloon path and consequently prevent entanglement of the yarn in the yarn guides to a yarn consuming machine.

Abstract: A direct current electromagnetic disc type tension control which has alternating current superimposed on the direct current circuit to allow the electromagnet to vibrate the tension discs in order to break the contact between the tension discs and between the tension discs and the electromagnet to lower the resistance to rotation of the discs by the yarn passing therethrough. The direct current electromagnetic tension control is an electromagnetic disc type tension control in which the yarn guiding post is slotted off-center between the discs so that the yarn being tensioned is received between the discs and exerts a torsional force on the tension discs to cause the tension discs to rotate in order to enhance the dissipation and self-cleaning of the yarn finish accummulated therebetween.