Abstract: A clamping-effective yarn cylinder comprises a yarn cylinder having a trench about 350 degrees around an outer periphery of the yarn cylinder; each of two ends of the trench being formed with a cambered wall; the trench being divided into four sections so that four molds can enter into the trench from the four sections which are divided by four radius lines; each section having teeth which are tilt to different directions so as to enhance the force for clamping the yarns; and the teeth for each section extending from two lateral walls of the section and having identical orientation; extensions of the teeth of adjacent sections will intersect to one another so that yarns can be captured effectively in the trench.

Abstract: An improved structure yarn cylinder that is an improvement of “Yarn Cylinder with Trench” (Taiwan P/N 201810) accomplished by extending the circumferential length of the trench, disposing numerous teeth at differing angular orientations along the two lateral walls of the trench and, furthermore, arraying the teeth in a crisscross formation on the two lateral walls to thereby effectively increase yarn snagging capacity and facilitate ease of securing.

Abstract: A parallel spinning process, in particular for filaments, e.g. for textile or industrial applications, made from polymers such as, for example, PET or PA, in each case having a thread interlacing device between two godets for each individual thread, the godets being moved in relation to one another during the piercing or feeding operation in such a way that each individual thread is automatically threaded into its interlacing device associated therewith, and the angle of wrap in the operating mode is at least from 85° to at most 200°, preferably from 175° to 185°.

Abstract: An insertion mechanism is provided for bringing an insert yarn into association with a base yarn in an automatic winder. The insertion mechanism comprises an insertion guide for delivering the insert yarn to a predetermined location on the winder, and a tensioning device for maintaining tension on the insert yarn. In another aspect, an automatic winder is configured or modified for direct insertion. In contrast to conventional creel frame insertion, the direct insertion technique of the invention avoids the need for a separate step of back-winding, and allows the automatic doffing feature on the winder to be enabled.

Abstract: This invention relates to a silver compression method and device. By using the compression method of this invention, the loaded sliver is reduced without requiring the use of spindles and thus allow for easier handling in the next process.

Abstract: An apparatus and method for melt spinning a plurality of downwardly advancing multifilament polymeric yarns, and winding the advancing yarns into respective packages. Each of the advancing yarns is brought into contact with a separate yarn delivery mechanism which acts to control the yarn tension before the yarn is wound into a package. Thus, the yarn tension of all of the yarns can be made substantially the same when they are wound into packages, which permits all of the packages to have the same winding structure and the same packing density.

Abstract: A self supporting, helically wound package of yarn suitable for being payed out by withdrawing the yarn without collapse of the package is disclosed. The yarn comprises a strand of individual filaments, the strand having a primary cross-sectional shape and periodic flat spots with a flat cross-sectional shape which is more elongated than the primary cross-sectional shape. The package has edge portions positioned axially at the ends of the package, and the flat spots are positioned in the edge portions of the package.

Abstract: An automated yarn conditioning apparatus and process is provided. This apparatus and process allows for unconditioned yarn packages to be brought from a source to a yarn conditioning station where they are conditioned and then ejected onto a takeaway conveyor. Yarn conditioning is achieved within an airtight chamber inside of a vessel. The yarn conditioning process used first evacuates the airtight chamber and then injects steam or other conditioning vapor into the airtight chamber while partially elevating the internal chamber pressure and/or temperature. Simultaneously with the conditioning of the yarn packages inside the airtight chamber, unconditioned yarn packages are brought to the conditioning station for placement inside the vessel when the prior conditioning step has been completed.

Abstract: An automated yarn conditioning apparatus is provided. This device allows for unconditioned yarn packages to be brought from a source to a yarn conditioning station where they are conditioned and then ejected onto a takeaway conveyor. Yarn conditioning is achieved within an airtight chamber inside of a vessel. The yarn conditioning process used first evacuates the airtight chamber and then injects steam into the airtight chamber. Simultaneously with the conditioning of the yarn packages inside the airtight chamber, unconditioned yarn packages are brought to the conditioning station for placement inside the vessel when the prior conditioning step has been completed.

Abstract: An automated yarn conditioning apparatus and process is provided. This apparatus and process allows for unconditioned yarn packages to be brought from a source to a yarn conditioning station where they are conditioned and then ejected onto a takeaway conveyor. Yarn conditioning is achieved within an airtight chamber inside of a vessel. The yarn conditioning process used first evacuates the airtight chamber and then injects steam or other conditioning vapor into the airtight chamber while partially elevating the internal chamber pressure and/or temperature. Simultaneously with the conditioning of the yarn packages inside the airtight chamber, unconditioned yarn packages are brought to the conditioning station for placement inside the vessel when the prior conditioning step has been completed.

Abstract: An automated yarn conditioning apparatus is provided. This device allows for unconditioned yarn packages to be brought from a source to a yarn conditioning station where they are conditioned and then ejected onto a takeaway conveyor. Yarn conditioning is achieved within an airtight chamber inside of a vessel. The yarn conditioning process used first evacuates the airtight chamber and then injects steam into the airtight chamber. Simultaneously with the conditioning of the yarn packages inside the airtight chamber, unconditioned yarn packages are brought to the conditioning station for placement inside the vessel when the prior conditioning step has been completed.

Abstract: A process for conditioning a yarn package enclosed within a conditioning chamber by introducing low temperature steam at approximately 140.degree. F. for two seconds, thereby setting the twist of the yarn after spinning and winding.

Abstract: The temperature of a heating fluid used in a yarn crimping zone is controlled in response to whether a yarn plug is detected at a predetermined point, and in another embodiment a fluid is heated, passed to a yarn heating zone and a yarn is heated in the zone in response to whether the yarn is being wound in a yarn winding zone.

Abstract: The method of fabricating a coreless hollow filament bundle of interlaced hollow filaments to be used as the membrane elements in a separatory module comprising the steps of providing first and second axially spaced co-axially rotatable engagement members carrying filament receiving arms, concomitantly rotating said rotatable engagement members while alternately engaging filaments upon a respective filament receiving arm of one rotary member, causing said filament to traverse the space between said first rotary member and the second rotary member and engaging said filament upon a receiving arm of said second rotary member, and continuously feeding said filament between said receiving arms of said rotary members so as to provide a coreless bundle of filaments interlacing with one another in left and right hand helices at angles to the common axis of rotation of the two rotary members.

Abstract: The invention relates to a process for the manufacture of monofilaments for melt-spun synthetic polymers at high speeds. Lower spinning heights than conventional spinning applications are obtained by using the phenomena of natural yarn deflection.

Abstract: Misaligned strands in a graphite fiber on tape are aligned and wound up on reels with a minimum of degradation by the steps of: separating the individual strands, diverging the strands, aligning the strands and winding the individual strands onto separate take-up reels in one continuous operation.Graphite fabric woven from the strands exhibit little or no degradation and have a uniform density and excellent physical properties. The alignment apparatus is inexpensive, simple to operate and occupies a relatively small space.

Abstract: The temperature of a heating fluid used in a yarn crimping zone is controlled in response to whether a yarn plug is detected at a predetermined point, and in another embodiment a fluid is heated, passed to a yarn heating zone and a yarn is heated in the zone in response to whether the yarn is being wound in a yarn winding zone.

Abstract: Method and apparatus for handling textile yarn strands in which textile yarn strands subjected to a heat treating operation are continuously directed from the heat treating apparatus by a stream of air through an oscillating tube onto a moving conveyor belt to deposit and accumulate the yarn strand thereon in a substantially tensionless condition for cooling. The yarn strand is removed from the accumulated yarn on the belt surface in a direction generally parallel to the surface and to the direction of movement of the accumulated yarn thereon to minimize tangling of the yarn, and the strand is subjected to a cooling air stream directed oppositely to its direction of movement to detangle the same prior to collection on a package. The speed of yarn package take up is controlled by means of a photoelectric sensing device located above the conveyor belt to sense the amount of yarn accumulated on the belt, and to ensure that a predetermined amount of yarn is maintained on the belt during the cooling operation.

Abstract: A ball of hand knitting yarn is formed by winding the yarn in an overlapping constantly progressing angular winding to form a partial sphere, thereafter continuing the winding by applying a plurality of turns of said yarn in substantially parallel circumferential turns about substantially a central equator of the ball and subsequently finishing the winding with a plurality of overlapping progressively angled windings so as to hide the circumferential turns.

Abstract: The temperature of a heating fluid used in a yarn crimping zone is controlled in response to whether a yarn plug is detected at a predetermined point, and in another embodiment a fluid is heated, passed to a yarn heating zone and a yarn is heated in the zone in response to whether the yarn is being wound in a yarn winding zone.

Abstract: A straightened, textured yarn is produced employing an apparatus comprising a crimping means, an entangling means and a heating and tensioning means which heats and applies tension to the crimped and entangled yarn prior to packaging.

Abstract: A method and apparatus of random or space dyeing yarn while simultaneously forming a yarn package having a plurality of axially stacked revolutions of yarn, with each revolution formed to include a plurality of sinuous patterns in each revolution, and wherein the sinuous pattern of adjacent revolutions are angularly offset relative to each other. The apparatus includes a frame support means having a power driven turntable, with a pressure plate non-rotatable supported thereabove for vertical translating movement, and wherein the yarn package is formed between the rotatably turntable and the pressure plate. The yarn packaging apparatus is provided with yarn guide means for effecting radial reciprocating displacement of yarn while feeding the yarn through a radial slot in the pressure plate to the turntable for forming revolutions of yarn having the sinuous pattern.

Abstract: A flexible apparatus and method for producing synthetic fibers in either the form of a single thread bundle on a bobbin, or as a combined thread strand in a storage can, without rearranging the spinning plant. This is accomplished by extruding the threads, one bundle from each of a series of aligned spinnerets, downwardly through ducts carrying a stream of air, and mounting directly beneath the ducts, in alignment therewith, an elongated take-up machine. The take-up machine has a row of winding devices on one side and a row of combining rollers on the other. The thread bundle from each spinneret is directed through a duct arrangement either to one side or the other of the take-up machine. All spinnerets may feed one side, or the other, or the production can be mixed with some spinnerets feeding one side and some the other, depending upon whether the market demand is for filament yarns or staple fibers.

Abstract: Method for packaging and dyeing yarns comprising the steps of winding at least one yarn on a provisional core, at the same time imparting to the yarn a continuous rotation and a rciprocating translation, and to advance the wound yarn continuously so that it comes off the said core. The tubular packaging that continuously comes off its support core has brought to bear on it a plurality of jets or sprays of dye directed radially, over the entire circumference of the packaging.

Abstract: A novel method and apparatus for forming a containerized package of glass fiber strand is disclosed. The method comprises impinging attenuated glass fiber strand onto a rotating surface, swirling the glass strand due to its inertial forces upon impingement with the surface, and collecting the swirled glass strand to form a containerized package of glass strand. Apparatus for accomplishing the attenuation and swirling operations is also disclosed.