Having A Tube, Or A Twisting Head Therefor, Through Which Yarn Passes, With A Yarn Gripper Patents (Class 57/344)
  • Patent number: 7406818
    Abstract: The present invention is an apparatus and method of making yarn for carpet that exhibits a high degree of color pop. More specifically, in one aspect, the present invention comprises an apparatus and method that comprises supplying a plurality of yarns, false-twist the plurality of yarns, and passing the consolidated yarn through a downstream entangling assembly to tack at least a portion of the consolidated yarn. Another aspect of the present invention passes at least one of the plurality of yarns through one of a plurality of second entangling assemblies positioned upstream of the false-twist apparatus.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: August 5, 2008
    Assignee: Columbia Insurance Company
    Inventor: Kenneth H. Keith
  • Patent number: 6226972
    Abstract: To provide a method and device with which Alternate Twisted Yarn can be produced simply and inexpensively. An Alternate Twisted Yarn is produced by alternately repeating with a neutral and tilt switching method and twisting yarn 1 in the reverse direction on both sides of pulley 2 driven by yarn 1 that is inserted between the flanges of pulley 2, so that the yarn passage is bent or flexed. Shaft 3 of this pulley 2 is inclined to the yarn 1 yarn passage plane to bring yarn 1 into contact with the flange section 2a's internal surface of pulley 2, and in the neutral position under which yarn 1 is not twisted on both sides of pulley 2, with shaft 3 of pulley 2 being made perpendicular to the yarn 1 yarn passage plane to cut off its contact to the pulley 2 flange section 2a's internal surface.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 8, 2001
    Assignee: Izumi International, Inc.
    Inventor: Kazuyoshi Kida
  • Patent number: 5365729
    Abstract: An apparatus for stretching natural staple fibers to reduce their diameter includes a plurality of rotatable arrays of driven pulleys which are mounted for rotation between two twist blocking nips. The rotatable arrays are rotatable on a longitudinal axis corresponding to the direction of travel of an assembly of fibers through the apparatus to impart false twist into the assembly. The assembly of fibers is stretched between two of the pulley arrays with the pulleys of the downstream array being driven at a higher speed than the pulleys of the upstream array. A steam chamber is provided for setting the stretch while the false twist is being maintained by further rotatable pulley arrays. Post treatment stages may be added to further stabilize the stretched fibers.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: November 22, 1994
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: David G. Phillips, John J. Warner
  • Patent number: 5295347
    Abstract: For the strengthening of an end portion of a yarn which extends on a spinning station of a spinning machine between a stopped spool package and a suction withdrawal device assigned to the spinning station, the yarn which projects into the withdrawal device is gripped, is lengthened by the winding-off of the yarn wound onto the spool package, and is then strengthened in an essentially stationary position by means of a twisting entered in the area of the yarn end. In the case of an arrangement provided for this purpose, particularly mechanically operating twisting devices are used.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: March 22, 1994
    Assignee: Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5159806
    Abstract: An apparatus for producing of real twist-like yarns wherein a guide member is provided within a nozzle block for exerting a turning stream on a fiber bundle moved out of a drafting device and an extreme end of the guide member is directed at an inlet of a rotary or stationary spindle.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: November 3, 1992
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Shigeki Mori, Kazuhiko Mikami
  • Patent number: 5092117
    Abstract: A method and apparatus for producing an optical multi-fiber cable element provided with a second sheathing by extruding a loose secondary sheathing around a fiber bundle and stretching the fibers a desired extra length with respect to the sheathing, the fibers being guided in such a manner that the position of the fibers varies continuously during stretching. To produce an untwisted cable element and avoid variation in the fiber length, the secondary sheathing together with its fiber bundle is twisted around its axis after the extrusion or the sheathing to vary the twisting position of the fiber bundle as the sheathing and fibers approach the stretching step.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: March 3, 1992
    Assignee: Nokia-Maillefer Holding S.A.
    Inventors: Teuvo Paivinen, Jouko Heikkila
  • Patent number: 4829762
    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.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: May 16, 1989
    Assignee: W. Schlafhorst & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 4798581
    Abstract: An apparatus for forming an elongated visually detectable element on a sheet of absorbent material comprising, a device for extruding at least one colored strand, and a device for placing the strand on the sheet.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: January 17, 1989
    Assignee: The Kendall Company
    Inventor: James L. Jessup
  • Patent number: 4691743
    Abstract: In order to remove waste slivers produced by cutting false selvedges in a weaving loom, at least two slivers are introduced into a rotating feed duct and subjected to a false twist, thus automatically balancing the tensions of the different slivers. The cord thus formed falls down from the feed duct outlet onto a delivery coiler on which the spiral turns are successively allowed to slip off the rotating coiler under the control of a brake system and then discharged into a can.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: September 8, 1987
    Assignee: Societe Alsacienne de Construction de Material Textile
    Inventor: Jean Venot
  • Patent number: 4638624
    Abstract: The present invention provides a false twist crimped yarn having an improved coherent structure which is produced by the specific mode of processing realized by defining the processing conditions of false twist crimping system. Here the unitary effect generally takes the form of a structure in which several of the yarn composing filaments fasciate the rest of the filaments and accordingly the false twist crimped yarn can be submitted to the weaving process without undergoing the sizing, twisting and interlacing required conventionally.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: January 27, 1987
    Assignees: Teijin Limited, Kitanihon Spinning Co., Ltd.
    Inventors: Soichi Hakoyama, Shigetatu Mori, Yoshiyuki Takebe, Kanya Imaoka
  • Patent number: 4590755
    Abstract: A tube for use in apparatus for twisting wires together such as that described in U.S. Pat. No. 4,429,520. The tube has an outer layer of one material and a thinner inner layer of another material which is bonded to the outer layer. There are at least two feedpaths for the wires and the inner layer surrounds each of two passages defining these feedpaths. The inner layer is abrasion resistant and is less deformable and more rigid than the outer layer while the flexibility of the tube enables it to be rotationally flexed about a longitudinal axis to torsionally twist it alternately in opposite directions.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: May 27, 1986
    Assignee: Northern Telecom Limited
    Inventor: John N. Garner
  • Patent number: 4433538
    Abstract: The invention is concerned with a textile spinning machine particularly a ring spinning machine, and is directed to the provision of a tension reliever between the delivery rollers and the yarn balloon, which has the effect of producing a tension differential between the yarn forming the balloon, and the yarn travelling from the delivery rollers to the tension reliever. In order to facilitate piecing-up of the yarn after a breakage, the tension reliever has a drive wharf and a capstan device which includes a yarn engaging capstan element, the capstan device permitting threading in a radial direction, and having a snap-in connection with the wharf, so that the capstan device can be completely detached from the drive wharf for a piecing-up operation.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: February 28, 1984
    Inventor: John F. Graham
  • Patent number: 4426837
    Abstract: Apparatus for stranding wires and covering them in plastics insulation by providing a rotationally flexible elongate member with spaced wire guiding elements, twisting means for twisting the member alternately in opposite directions, and an extension to the elongate member, the extension lying radially within an annular extruder barrel and terminating adjacent the extrusion orifice. In an arrangement for simultaneously stranding wires into different groups and covering the groups within the same insulation, reversible driving means for two or more elongate members is mounted upon a frame. Preferably, each elongate member has its own individual driving means.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: January 24, 1984
    Assignee: Northern Telecom Limited
    Inventors: Norbert J. Meilenner, Richard T. Sunderland, John W. Cook
  • Patent number: 4426839
    Abstract: Wire stranding apparatus having tubular means having passage means to provide wire feedpaths, the tubular means being rotationally flexible about an axis, being held against rotation about this axis at an upstream end and having twisting means to cause alternating torsional twisting at its downstream end. The feedpaths are held in fixed positions apart either along the whole length of the tubular means where the tubular means is a single tube with at least two side-by-side passages or comprises tubes with their outer surfaces in continuous contact. When the tubular means comprises two or more spaced tubes, these are held in fixed relative positions at spaced locations along the tubes. To accommodate axial contraction and extension during twisting, the tubular means has an axially acting resilient means which maintains axial tension on the tubular means.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: January 24, 1984
    Assignee: Northern Telecom Limited
    Inventors: John N. Garner, Jean M. Roberge
  • Patent number: 4426838
    Abstract: Wire stranding apparatus having elongate wire guide means which is rotationally flexible about its axis and defines individual feed paths for the wires with means to prevent rotation of the guide means at its upstream end and a twisting means to cause torsional twisting of the guide means in alternate directions at the downstream end. Direction changing means is provided to change direction of twist after a predetermined amount of twist in each direction. The changing means includes a trigger device (e.g. an arm) secured to the guide means towards its upstream end and initiating means which senses the position of the trigger device after the predetermined twist in the guide means to initiate the change in direction of drive. The upstream position of the trigger device gives it small rotational movement around the guide means compared to the rotational movement of the downstream end of the guide means.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: January 24, 1984
    Assignee: Northern Telecom Limited
    Inventors: John N. Garner, Jean M. Roberge, Norbert J. Meilenner
  • Patent number: 4414802
    Abstract: Wire stranding apparatus having a single tube defining a single axial passage providing at least two side-by-side feedpaths for wire, the passage being shaped to prevent wires from moving across from one feedpath to another. The tube is rotationally flexible to torsionally twist it in alternating directions by use of a twisting means at its downstream end while the upstream end is held against rotation. Change in twist direction occurs after a predetermined number of rotations of the twisting means. To accommodate axial contraction and extension during twisting, the tubular means has an axially acting resilient means which maintains axial tension in the tubular means.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: November 15, 1983
    Assignee: Northern Telecom Limited
    Inventors: John N. Garner, Jean M. Roberge, Douglas G. Baxter
  • Patent number: 4372107
    Abstract: An apparatus for inserting a false twist in roving or yarn as the strand or strands of fibers are fed from between a pair of front rolls to a takeup device. The apparatus includes a rotor rotatably carried in an enclosing casing. A plurality of circumferentially spaced air entrapping members is provided in the perimeter of the rotor so that upon applying pressurized air to the members, the rotor is driven. A yarn conveying tube extends axially through the rotor and is fixed thereto for being rotated therewith. A portion of the yarn conveying tube is radially disposed from the rotational axis of the rotor so that as the yarn flows through the rotating tube, a false twist is inserted in the yarn from the tube up to the nip of the front rolls.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: February 8, 1983
    Assignee: High-Speed Spinning, Inc.
    Inventor: Douglas G. Hart
  • Patent number: 4325214
    Abstract: Wire stranding apparatus for giving a periodic reverse twisting operation, in which a rotationally flexible elongate member, preferably a rod, carries wire guiding elements extending radially outwardly from it. Each element has guide holes for wires as they are passed along the rod. Stranding is done by holding an upstream end of the rod stationary and while the wires are moved along guide paths, the downstream end of the rod is rotated for a predetermined number of revolutions about its axis alternately in one direction and then the other. Wires are thus stranded in alternating directions.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: April 20, 1982
    Assignee: Northern Telecom Limited
    Inventor: Bretislav P. Zuber
  • Patent number: 4217750
    Abstract: A bunching machine for producing a twisted power cable and comprising a rotatable twisting head and a stationary take-off device through which plural strands of wire are continuously drawn, the twisting head being alternately rotated in opposite directions by switch control driven through step-down gearing from the same reversible motor as the twisting head.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: August 19, 1980
    Inventor: Bruce W. Hills