Unitary Multiple Twist Devices Patents (Class 57/58.49)
  • Patent number: 8850784
    Abstract: An apparatus for producing a textile product generally includes a feeding section for providing a starting material to facilitate producing a textile product derived from the starting material; a drafting section operably coupled to the feeding section for gripping, pulling, stretching and breaking at least one strand of the starting material into at least one continuous and cohesive network of an intermediate product; and a spinning section operably coupled to the drafting section for winding and twisting the at least one continuous and cohesive network of an intermediate product onto a removable receiving member to form the textile product; the feeding section, the drafting section, and the spinning section are configured to form the textile product in a continuous operation.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: October 7, 2014
    Assignee: Lorica International Corporation
    Inventor: Tung-Yuan Ke
  • Patent number: 8650848
    Abstract: Multi-station textile machine, in particular two-for-one-twisting or cabling machine, produces a high degree of flexibility with a simple structure by a respective double spindle unit (1) having a centrally arranged carrier (2), with a carrier (2) having a cross-member (20), which extends from one workstation to the other of the double spindle unit (1), supported by means of adjustable feet (26) on the ground, the carrier (2) furthermore having a centrally arranged hollow profile (21), which extends vertically from the cross-member (20), the hollow profile (21) being at least configured to receive a bobbin removal device (31, 33) and for fastening a winding device (3).
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: February 18, 2014
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Hans Guggemos, Walter Pede-Vogler, Alexander Thaler, Manuel Wolfle
  • Publication number: 20110126506
    Abstract: A two-for-one twister or cabling machine and a method for operation thereof, wherein a yarn (5, 25) is withdrawn from a supply bobbin (7, 21) and fed to a guide device below a twisted yarn plate (8, 24) of the spindle (2, 22) and from which the yarn (5, 25) exits virtually perpendicular to the axis of the spindle (2, 22) and is deflected to the outer edge of the twisted yarn plate (8, 24) and runs along the spindle (2, 22) as a free yarn balloon (B) encompassing the spindle (2, 22), until the yarn (5, 25) is fed into the twist or cabling point of a yarn guide device (9, 27) above the spindle (2, 22). The supply speed of the yarn (5, 25) is adjusted to achieve a yarn tension which minimizes the yarn balloon diameter as a function of the spindle geometry.
    Type: Application
    Filed: May 27, 2009
    Publication date: June 2, 2011
    Applicant: OERLIKON TEXTILE GMBH & CO. KG
    Inventor: Walter Schlagenhaft
  • Publication number: 20110078992
    Abstract: A mechanism for spinning fibrous material to yarn employing the ‘ring spinning process’ on a powered ring frame unit. The device can be adjusted and fixed for the thread count in production. The spinning cone reciprocating up and down to take up the spun yarn, thus ensuring most optimum geometry between the drafting roller and the spinning ring, adjustable at will. Each spinning cone on the entire frame being independent of each other in drive, speed and distance from the drafting assembly. Computers using a new software control the entire process. The described mechanism reduces power consumption, mechanical vibration and material breakage, consequently increasing productivity of the process and quality of the product.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 7, 2011
    Inventor: Abdul Latif Abbasi
  • Patent number: 7908839
    Abstract: Two-for-one twisting spindle having a pneumatically actuated threading device, with a spindle shaft rotatable about a vertical axis partially configured as a hollow shaft with a lower feed bore extending coaxially to the rotational axis, and with an injector element opening into a thread guide channel of a thread guide ring temporarily connectable during threading to a compressed air source. Part of the compressed air feed to the injector element is formed by the feed bore. The compressed air feed comprises a connection element (27) with a curved air channel (26), which connects the feed bore (24) to the injector element (16). The connection element (27) is configured as a separate component and the air channel (26) is adapted to the flow requirements.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 22, 2011
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Heinz Fink, Georg Tetzlaff, Sergi Singer
  • Publication number: 20100236211
    Abstract: A single-layered rubber-product-reinforcing steel cord with good rubber penetration properties, excellent fatigue resistance, and small low-load stretch is obtained. All of wires 11 are provided with curls having a substantially elliptical cross-section and a pitch smaller than that of curls for intertwining, formed by providing the wires with spiral curls and then pressing the wires. These wires are intertwined into each other to form a single-layered twist structure, and, thus, a cord is obtained in which a hollow portion at the center of the cord is in communication with an outside via a gap 12 between the wires 11, and at least any one pair of adjacent wires 11 are substantially in contact with each other at any point in the longitudinal direction of the cord.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Applicant: TOKUSEN KOGYO CO., LTD.
    Inventor: Noritaka MORIOKA
  • Patent number: 7788894
    Abstract: A spindle bearing for a two-for-one twisting spindle, with a spindle rotor having a thread guide body and a spindle shaft rotatably mounted in a vertical arrangement by a lower bearing device in a bearing housing which can be fastened to a spindle bank and which has an upper bearing device for mounting a protective pot. A lubricant duct extends from the top through the thread guide body at least approximately parallel to the rotational axis of the spindle shaft and opens into the lower bearing device.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: September 7, 2010
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventor: Heinz Fink
  • Patent number: 6681554
    Abstract: A yarn wetting apparatus, especially for a two-for-one twisting spindle assembly, and a two-for-one twisting spindle assembly having a yarn wetting apparatus disposed on the upper end of its spindle hollow axis, are provided. The yarn wetting apparatus comprises a reservoir, a porous wetting body which extends to the reservoir and has a capillary capacity, and a yarn passage opening which tapers in the direction of the spindle hollow axis of the two-for-one twisting spindle assembly, wherein the inner end of the yarn passage opening is in communication with the reservoir via at least one wetting agent back flow channel.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: January 27, 2004
    Assignee: Volkman GmbH
    Inventor: Horst Giesen
  • Publication number: 20030110753
    Abstract: The invention relates to a double twisting twister machine with precision weave pickup, which is characterized in that the production modules are designed to work autonomously and independently and that it is especially designed with directly motorized spindles to work with threads having different diameters (titer) and both natural and synthetic materials wound in large size bobbins with precision weaving. The modules can work simultaneously at full capacity since all elements are independent.
    Type: Application
    Filed: September 23, 2002
    Publication date: June 19, 2003
    Inventor: Josep Galan Pujol
  • Publication number: 20030093985
    Abstract: A yarn wetting apparatus, especially for a two-for-one twisting spindle assembly, and a two-for-one twisting spindle assembly having a yarn wetting apparatus disposed on the upper end of its spindle hollow axis, are provided. The yarn wetting apparatus comprises a reservoir, a porous wetting body which extends to the reservoir and has a capillary capacity, and a yarn passage opening which tapers in the direction of the spindle hollow axis of the two-for-one twisting spindle assembly, wherein the inner end of the yarn passage opening is in communication with the reservoir via at least one wetting agent back flow channel.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 22, 2003
    Inventor: Horst Giesen
  • Publication number: 20020189228
    Abstract: The invention includes a first bobbin that supplies a first yarn, a second bobbin that supplies a second yarn, and a third bobbin that supplies a third yarn. Additionally, the invention includes a guide that guides the first and second yarns so that they are substantially parallel to each other, and a combining device the combines and twists the parallel disposed first and second yarns with the third yarn. The invention enables the manufacture of a two-ply cord having a filler yarn therein, in a single step, and also allows more cord to be manufactured within a specified time period.
    Type: Application
    Filed: June 15, 2001
    Publication date: December 19, 2002
    Applicant: Acordis Industrial Fibers, Inc.
    Inventor: Ricky A. Cook
  • Patent number: 6442922
    Abstract: Disclosed herein are a tire-reinforcing steel cord and a pneumatic radial tire using the same. The tire-reinforcing steel cord includes an inner layer consisting of 3 filaments and an outer layer consisting of 7 or 8 filaments and surrounding the inner layer. The inner layer and the outer layer are twisted in such a manner that they have the same twist direction and the same twist pitch length, whereby the number of the twisting steps in the manufacture of the steel cord is reduced, and also the penetration of rubber into the steel cord is improved such that the steel cord has an improved durability upon application to tires.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: September 3, 2002
    Assignee: Hankook Tire Co., Ltd.
    Inventor: Yong Sig Han
  • Patent number: 6427432
    Abstract: On a common production line, a twist-free assembly station, at which various wires are assembled without individually twisting is followed by a twisting station at which a cable formed by the wires is twisted at least once.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: August 6, 2002
    Assignee: Pourtier Pere & Fils-P.P.F.
    Inventor: Pascal Pourtier
  • Patent number: 6425236
    Abstract: A cabling and yarn double-twisting spindle having pneumatic assistance for a threading up of the yarns to be handled by the spindle is provided. The spindle includes a shaft rotatably supportable in a support hub on a spindle bank. The shaft has a central, axially extending shaft bore, and package top. The package top is secured against rotation and has a hollow spindle axial portion disposed in communication with the spindle shaft bore. A pressurized air injector effects threading up of a yarn component delivered via the hollow spindle axial portion of the package top with another yarn component delivered via the spindle shaft bore, and includes a pressurized air supply conduit in the spindle shaft such that the pulse of air injected by the air injector is operable to produce a suction flow in the hollow spindle axial portion of the package top and in the spindle shaft bore.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: July 30, 2002
    Assignee: Volkmann GmbH
    Inventors: Xavier Roquet, Heinz Stenmans
  • Patent number: 6378283
    Abstract: A process and apparatus for manufacturing multiple conductor cable having improved transmission parameters. The apparatus includes a rotatable alignment die having a plurality of apertures. At least one strand of the multiple conductor cable is caused to traverse an aperture of the rotatable alignment die. A rotation motor causes the strand to rotate about its elongate axis, and a translation motor causes the strand, or the cable, to traverse along its elongate axis. The multiple conductors are brought into a predetermined mutual mechanical alignment that is calculated to produce a cable having at least one improved transmission parameter. The cable can additionally include a support member adapted to maintain the conductors in the mutual mechanical alignment. A binder is applied to the cable to maintain the conductors in the predetermined mutual alignment.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: April 30, 2002
    Assignee: Helix/HiTemp Cables, Inc.
    Inventor: John A. Barton
  • Publication number: 20020038538
    Abstract: A machine for manufacturing metal cords includes a supporting structure, a rotor engaged with respect to the supporting structure, a cradle fastened to the supporting structure, feeding devices operatively fitted on the cradle to feed a plurality of elementary wires from respective feeding spools, and at least one preforming device operatively engaged with the cradle and operating on at least one of the elementary wires in a section upstream with respect to a first end section of the stranding path. The elementary wires are driven onto the rotor according to a stranding path. The stranding path has end sections coinciding with the rotation axis of the rotor and a central section distanced from the rotation axis of the rotor. The at least one preforming device provides the at least one of the elementary wires a substantially sinusoidal deformation lying in a plane.
    Type: Application
    Filed: June 22, 2001
    Publication date: April 4, 2002
    Inventor: Omero Noferi
  • Patent number: 6363705
    Abstract: A method for spinning fibers onto the free ends of the two threads of a yarn that is produced during an integrated spinning and twisting process and a two-for-one spinning and twisting apparatus for performing the method are provided. The method includes gripping a twisted yarn, separating two threads of the twisted yarn in a manner such that the twist which was originally present in each individual thread prior to the doubling of the thread with the other thread returns to the now separated thread portion, and forming a thread loop of each separated thread portion. Each thread loop is clamped and respective portions of the two branches of the thread loop extend to a spinning rotor and the spindle hollow axle. Spinning is commenced in coordination with winding and the thread loop is dissolved as the now joined thread is drawn into the spindle hollow axle.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: April 2, 2002
    Assignee: Volkmann GmbH
    Inventor: Siegfried Brenk
  • Publication number: 20020002814
    Abstract: A two-for-one twisting machine is provided and includes a spindle having a yarn brake. The yarn brake includes a brake housing, a brake cartridge having opposed ends, first and second brake rings disposed within the brake housing, and a support element. The yarn brake also includes a guide conduit extending generally co-axially within the brake housing supporting the support element at a selectively variable axial location within the brake housing and a yarn intake tube extending within the guide conduit. A spring extends between the support element and the second brake ring for resiliently biasing the second brake ring and the brake cartridge is releasably compressively engaged by the first brake ring pressing against one end of the brake cartridge and the second brake ring pressing against the opposite end thereof.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 10, 2002
    Applicant: Volkmann GmbH
    Inventor: Heinz Scheufeld
  • Publication number: 20010049929
    Abstract: A method for spinning fibers onto the free ends of the two threads of a yarn that is produced during an integrated spinning and twisting process and a two-for-one spinning and twisting apparatus for performing the method are provided. The method includes gripping a twisted yarn, separating two threads of the twisted yarn in a manner such that the twist which was originally present in each individual thread prior to the doubling of the thread with the other thread returns to the now separated thread portion, and forming a thread loop of each separated thread portion. Each thread loop is clamped and respective portions of the two branches of the thread loop extend to a spinning rotor and the spindle hollow axle. Spinning is commenced in coordination with winding and the thread loop is dissolved as the now joined thread is drawn into the spindle hollow axle.
    Type: Application
    Filed: April 30, 2001
    Publication date: December 13, 2001
    Applicant: Volkmann GmbH
    Inventor: Siegfried Brenk
  • Patent number: 6327843
    Abstract: A cord comprising at least a first pair and a second pair of wires (2a, 2b) of different diameter randomly disposed in transverse cross section thereof, is obtained by arranging in a nacelle (7) of a double-twisting laying machine, a twister (16) operating upstream of a preformer (15). The twister (16), rotating in a direction opposite to that of the impeller (5) and at a speed which is twice that of the impeller, neutralizes the internal torsional stresses induced in the wires (2a, 2b) by effect of the double twisting carried out upon the action of the impeller itself. Thus, a better control of the preforming operation executed on the wires (2a, 2b) disposed parallel in respectively coplanar axes is enabled.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: December 11, 2001
    Assignee: Pirelli Coordinamento Pneumatici SpA
    Inventors: Marco Cipparrone, Omero Noferi
  • Patent number: 6318062
    Abstract: A wire twisting machine and method provide a randomly varying lay to pairs of twisted wires forming a cable. A pair of wires are fed into a motor driven bow mechanism which twists the wires at a given rate of speed. The bow winding speed is sensed to provide a signal to a control system employing a computer which generates a randomly varying signal between a selected minimum and maximum range. The random signal is applied to an oscillator which provides a varying frequency signal to a power supply unit. A pulsed direct voltage signal then controls a stepping motor which applies the randomly varying lay signal to vary the speed of the capstan winding the wires with respect to the independent bow speed. This varies the length of lay of the twisted wires within controlled limits.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: November 20, 2001
    Assignee: Watson Machinery International, Inc.
    Inventor: John Doherty
  • Patent number: 6311468
    Abstract: A device for producing a twisted yarn by an integrated or combined spinning and twisting process is provided and comprises a two-for-one twisting spindle with at least two spinning rotors, positioned within the yarn balloon produced by the twisting process, for producing the individual yarns to be twisted, into which spinning rotors the disentangled fiber material is supplied respectively by the fiber supply tubes, which are connected to the fiber material disentangling units. The fiber material disentangling units are combined to a single fiber material disentangling apparatus with common drive elements for the two disentangling units.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: November 6, 2001
    Assignee: Volkmann GmbH & Co.
    Inventors: Markus Beckmann, Karl-Josef Brockmanns, Ingo Filz, Roland Greis, Stefan Kross, Guido Spix
  • Patent number: 6298648
    Abstract: Multiple twist spindle to impart two+two twists to textile yarns and threads, whether they be continuous filaments or discontinuous fibres, the spindle comprising a spindle support (16) which supports a support (13) for the feed bobbin (12) maintained substantially stationary and two counter-rotating parts, respectively the inner rotary part (18a) and the outer rotary part (18b), the counter-rotating parts (18a, 18b) being coaxial to each other and substantially coaxial to the axis (19) of the spindle (10), the thread (F) unwinding from the feed bobbin (12) and leaving the inversion element (15) located above the bobbin (12) is induced by the counter-rotating parts (18a, 18b) to follow a path which first descends and then ascends, and then sent to collection means, the paths defining respectively an inner balloon (11a) and an outer balloon (11b) rotating outside the feed bobbin (12), the thread (F) receiving two twists for each revolution of each of the counter-rotating parts (18a, 18b), there being incl
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: October 9, 2001
    Inventor: Armando D'Agnolo
  • Patent number: 6286294
    Abstract: A wire stranding machine is provided, being capable of stranding the wire materials evenly and uniformly even if two wire materials are used, by installing the capstan assembly outside of the rotary structure on the wire incoming side. A rotary structure having the winding drum inside of a flyer bow is supported by main shafts, and the capstan assembly is disposed adjacent to the main shaft on the wire incoming side. The capstan assembly includes a pair of capstan members consisting of main and auxiliary capstans, each having plural grooves on the outer circumferential surface thereof, and the main capstans are set opposite to each other. The capstan assembly is so arranged that the main and auxiliary capstans are set on the mounting member of the main shaft supporting the rotary structure and disposed parallel in the direction perpendicular to the axis of the main shaft. The main capstans are adapted to rotate at the same speed but in opposite directions to each other.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: September 11, 2001
    Assignee: Kinrei Machinery Co., Ltd.
    Inventor: Kanji Suzuki
  • Patent number: 6272828
    Abstract: A cable twisting method and apparatus, for forming double twisted pair cables. The invention longitudinally distributes the eccentricities of the individual cables, where the helical propagation of the eccentricity is not conformal to the helix formed by the geometric shape of the cables.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 14, 2001
    Assignee: Nordx/CDT, Inc.
    Inventors: Jörg-Hein Walling, Jean-Francois Richard, Omar Saad
  • Patent number: 6272829
    Abstract: In an individual-spindle-drive type multiple twister that directly employs separate motors to drive the spindle shafts of each twisting unit, when a spindle is inserted into the housing during motor assembly, a rotor and a stator may attract each other and adhere to each other, and this attraction may prevent the spindle shaft from being correctly inserted into a target bearing, thus making it difficult to assemble the motor. A spindle shaft 4 is rotatably supported by bearings 27a and 28a mounted onto upper and lower supporting members 27 and 28. The distance A between the lower end of the rotor magnet 32 of the drive motor 10 fixed to the spindle shaft 4 and the lower end of the spindle shaft 4 is longer than the distance B between the upper end of the stator coil 31, which is fixed to the housing 34 of the drive motor 10, and the bearing 28a of the lower supporting member 28. In addition, the tip 4 of the spindle shaft 4c is tapered to facilitate insertion.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: August 14, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Tatsuo Kimura, Toshinari Umeoka
  • Patent number: 6256971
    Abstract: In an individual-spindle-drive type multiple twister that directly employs separate motors to drive the spindle shafts of each twisting unit, when a spindle is inserted into the housing during motor assembly, a rotor and a stator may attract each other and adhere to each other, and this attraction may prevent the spindle shaft from being correctly inserted into a target bearing, thus making it difficult to assemble the motor. A spindle shaft 4 is rotatably supported by bearings 27a and 28a mounted onto upper and lower supporting members 27 and 28. The distance A between the lower end of the rotor magnet 32 of the drive motor 10 fixed to the spindle shaft 4 and the lower end of the spindle shaft 4 is longer than the distance B between the upper end of the stator coil 31, which is fixed to the housing 34 of the drive motor 10, and the bearing 28a of the lower supporting member 28. In addition, the tip 4 of the spindle shaft 4c is tapered to facilitate insertion.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: July 10, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Tatsuo Kimura, Toshinari Umeoka
  • Patent number: 6244028
    Abstract: In order to be able to operate a spindle as a multi twisting spindle as well as a doubling spindle or a bobbin peg, the spindle has a rotatably driven spindle shaft; a twisting pot rotatably driven by the spindle shaft and having a bottom with a radially extending yarn guide channel; a rotatingly driven spool carrier for receiving a spool; a hollow spindle axle centrally guided through the spool carrier and connected to the yarn guide channel; and a centering eye arranged on an extension of the hollow spindle axle. A placement member is introduced into the spool carrier and vertically reciprocated for placement especially of a doubled yarn onto the spool rotating together with the driven spool carrier.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: June 12, 2001
    Assignee: Volkmann GmbH & Co.
    Inventor: Stefan Kross
  • Patent number: 6230478
    Abstract: Apparatus and method for manufacturing helically wound insulated conductors with filament fillers includes first and second payoff stations for paying off a plurality of insulated conductors and elongate filaments of filler materials. These cable components are guided from the payoff stations to a closing die, and are arranged in positions suitable for twisting into a cable by a double twist machine to form a cable of twisted insulated components forming radially outwardly facing helical interstices each of which is substantially filled with another one of the filaments of filler material. Differential or incremental lengths of filler material are metered upstream of the double twist machine to compensate for the differences in the radial distances of the insulated conductors and filaments of filler material on the center or cable of the axis.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Nextrom Ltd.
    Inventor: Paul White
  • Patent number: 6209299
    Abstract: An apparatus is provided comprising a first twisting device that dispenses a first wire and imparts a twist to the same, a second twisting device that receives the twisted first wire and twists the same about a second wire, and a metering device or capstan positioned on the outside of the second twisting device that controls the input velocity of the first and second wires. The apparatus can further include a third twisting device that dispenses a second wire and imparts a twist to the same. In a preferred embodiment of the present invention, the first and second wires are back-twisted and the second twisting device receives the first and second back-twisted wires and twins or pairs the same. A tension transducer is also provided which measures the tension of the wires before they enter the second twisting device.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 3, 2001
    Assignee: Thermoplastics Engineering Corp.
    Inventors: Ernest L. Landry, Timothy P. McKeon
  • Patent number: 6205759
    Abstract: To provide an individual-spindle-drive type textile machine capable of making a number of wires to the drive motor of each spindle unit compact even if the number of spindle units is large. Because the spindle units are arranged in two parallel arrays, one in front and one to the rear, maintenance work is greatly simplified. A wiring duct box, in which the common wiring line for each wiring is extended and routed, is disposed between the front-stage and rear-stage spindle unit group arrays, and is configured such that an electronic circuit board governing the rotation speed control of each motor is removably connected to the wiring line.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: March 27, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Keiji Kuroda
  • Patent number: 6167687
    Abstract: An apparatus is disclosed for manufacturing communication cables with improved, more uniform impedance characteristics at signal frequencies up to and above 600 MHz. The apparatus includes an “inside-out” rigid twisting machine and at least two bobbins supported within each such machine. Each rigid twisting machine includes a drive for spinning each of the bobbins about their respective axes, and fly-off arrangement is provided for flying off an insulated conductor wire wound on each of the bobbins with substantially no tension in the wire when the bobbin attains a first rotational speed. Guides are provided for guiding the wires from each of the bobbins to a closing point where the wires are closed. A double twist bow arrangement is provided which includes second drive for twisting the closed wires at a second rotational speed to form a twinned cable.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: January 2, 2001
    Assignee: Nextrom Ltd.
    Inventor: Walter Thompson