Selvage Trimmers Patents (Class 139/302)
  • Patent number: 10221508
    Abstract: A device for cutting off weft yarn (27) during successive weaving cycles, comprising a cutting element (1) and a rotatable detaining element (2c), (13) which is forced to a detaining position by a spring force in order to detain the yarn and can rotate, under the influence of a tensile force exerted by a rapier on the detained yarn, counter to the spring force to a non-detaining position in which the yarn can be moved further towards the cutting element (1) in order to be cut. Such a device is efficient and can be made to be more reliable and more compact than existing devices. The invention also relates to a weaving loom provided with such a device.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: March 5, 2019
    Assignee: NV MICHEL VAN DE WIELE
    Inventors: Vincent Lampaert, Brecht Halsberghe
  • Patent number: 9915015
    Abstract: Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 13, 2018
    Assignee: Picanol
    Inventors: Eddy Verclyte, Wim Hoorelbeke, Ronny Coulembier
  • Patent number: 9487887
    Abstract: An apparatus for manufacturing textiles includes a creel having mounted thereon a plurality of regenerating yarn packages and a yarn extension device having a first plurality of inputs each coupled to a strand of yarn from one of the plurality of yarn packages, a second plurality of inputs each coupled to a strand of yarn from one of the plurality of regenerating yarn packages, and a yarn joining device operative to join a first strand of yarn from one of the first plurality of inputs to a second strand of yarn from one of the second plurality of inputs to create a joined strand of yarn.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: November 8, 2016
    Inventor: Jonathan Grossman
  • Patent number: 8800606
    Abstract: A dynamic finishing device that is able to finish one side of a product independently of a second side of the product while the product is being woven is provided. The sides may be finished in a non-linear fashion by the dynamic finishing device. Additionally, one or more finishing devices can be dynamically positioned in an interior portion of the woven product as it is being woven. Once positioned, the finishing devices may create apertures, pockets, and/or tunnels in the woven product and finish the edges of these creations. Finishing in the interior portions of the woven product occurs in the direction of the warp and in the direction of the weft.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: August 12, 2014
    Assignee: Nike, Inc.
    Inventors: Tory M. Cross, Bhupesh Dua
  • Patent number: 8794270
    Abstract: A method for weaving a carpet including tying a row of knots with a yarn and weaving two or more weft strands next to the row of knots, where the weft strands are 100% cotton and the yarn is wool yarn hand-carded and hand-spun into a single strand is described.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: August 5, 2014
    Assignee: Phoenix Weave, LLC
    Inventor: Nurbu Lama
  • Patent number: 7168456
    Abstract: A method and apparatus for the removal of one or more lateral yarns from a woven industrial textile to prepare it for seaming. The apparatus consists of a movable table, a clamping device to hold the fabric, and a yarn removal device, consisting of a cutter and a combined hooked needle & thread catcher. In operation, the yarn removal device moves both vertically into and out of the fabric plane, and horizontally parallel to the longitudinal yarns. The yarn removal device pierces the fabric at two locations, cuts one or more yarns, and then grasps the cut section(s) to pull them down and out of the fabric plane. The cycle is repeated to form a longitudinal channel of desired length; the device is then moved laterally and the cycle repeated until an open channel parallel with the lateral fabric edge is accomplished.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: January 30, 2007
    Assignee: North Rocky Robot Technology, Inc. (NORTEC)
    Inventors: Heinz (Heikki) Kuster, Raymond Lee Seeman
  • Patent number: 6681668
    Abstract: A device for cutting a moving web of textile material as it passes the device, and for sealing the cut edges of the material, having an electrically heated cutting member capable of severing the material as it passes the cutting member, and an electrically heated sealing member downstream from the cutting member relative to the direction of the moving web and positioned to contact and seal the edges of material cut by the cutting member as the edges pass over the sealing member. The sealing member is heated to a temperature somewhat higher than that of the cutting wire, the sealing member having a width larger than that of the cutting member transverse to said direction, and preferably being in the form of a cylinder. The invention also includes a process using the special cutting member/sealing member combination.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: January 27, 2004
    Inventor: Steven John Smirle
  • Patent number: 6675837
    Abstract: A roll (25) of woven fabric (30) having a length greater than the diameter thereof wherein the diameter (28) is substantially the same across said length of the roll.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: January 13, 2004
    Assignee: SI Corporation
    Inventors: Randall Hugh Russ, Maurice D. Atwell, III, Derek S. Bass, Andy Ellis, Don Hendrix, Tracey G. Johnston
  • Patent number: 6450210
    Abstract: A yarn cutting device for mechanical looms, having two mutually movable blades which are arranged on a mounting surface, at least one of the blades being operable by a drive. The drive is constructed as an electrically energized linear motor, whereby a compact flat construction is achieved which has few movable parts. One of the blade carriers is a rotor of the linear motor.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 17, 2002
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Peter Schiller, Dieter Teufel
  • Patent number: 6450211
    Abstract: Process for producing high-density woven fabrics on a water-jet loom, comprising feeding a warp having up to three catch threads on one edge, inserting weft threads into the warp in the direction of the catch threads, beating-up the weft threads to produce a woven fabric, severing the ends of the weft threads at the edges of the warp, and removing the ends of the weft threads, characterized in that, seen from both edges of the warp, 5 to 60 threads of the warp, following the catch threads on the edge of the warp with the catch threads, are support threads that are maintained at a tension that is 2 to 20 cN/tex higher than that of the threads forming the remaining warp, that after production of the fabric the weft threads between the edges of the remaining warp and the support threads are severed by fusion and joined to threads at the edges of the remaining warp, and that the severed ends of the weft threads are removed together with the support threads and the catch threads.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: September 17, 2002
    Assignee: Acordis Industrial Fibers GmbH
    Inventors: Hans Albert Graefe, Frank Leymann
  • Patent number: 6286561
    Abstract: The removal or transport of cut-off catch selvages in a loom is monitored by one or more sensors which produce a sensor output signal that represents the actual movement of the cut-off catch selvage. The sensor output signal is processed in an evaluation processor for producing a fault signal if and when the sensor output signal deviates from a predetermined standard or reference signal. The fault signal is used to trigger an alarm and/or stop the loom.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 11, 2001
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Matthias Armbrust, Michael Birk
  • Patent number: 6260586
    Abstract: A device for cutting the weft yarn in weaving looms includes a fixed-blade and movable-blade cutting group which has associated motor for the cutting movement of the movable blade in order to perform cutting of the weft yarn. The fixed and movable blades are each mounted on the end of respective elongated blade-carrying arms which extend respectively above and below the fabric holder of the loom, as far as a cutting zone located beyond the leading edge of the fabric holder itself in the direction of the reed, a zone in which said blades overlap so as to perform cutting of the weft.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: July 17, 2001
    Assignee: Somet Societa' Meccanica Tessile, S.p.A.
    Inventor: Gianmario Fratus
  • Patent number: 6227254
    Abstract: A method of recycling selvage yarns in a weaving operation involves providing selvage warp yarns which are continuous. The selvage is slit after passing through the loom from the main fabric warp yarns.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 8, 2001
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robert Lee Poe, Felix McBee, Jr., Phillip Wayne Pledger
  • Patent number: 6223779
    Abstract: A loom with pneumatic weft thread insertion and including a reed, a weft thread guide device connected with the reed and pivotable therewith between an insertion position and a beat-up position, a stationary weft insertion device having at least one blowing nozzle for inserting a weft thread into a guide channel of the weft thread guide device, an arrangement for forming a selvage having edge threads for clamping the weft thread after termination of the weft thread insertion and for guiding the weft thread from the insertion position to the beat-up position, and a shear having a first, stationary blade secured to a loom frame and a second, movable blade movement mounted on the reed for joint movement therewith and which cooperates with the first, stationary blade for cutting off a clamped weft thread in a region of a rear position of the reed outside of the selvage.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: May 1, 2001
    Assignee: Textilma AG
    Inventor: Francisco Speich
  • Patent number: 6209588
    Abstract: A weaving machine with pneumatic weft insertion is provided which includes a fixed reed filler at an output end of a reed when it is in a weft insertion position. A catch salvage forming device is disposed at an output end of the fixed reed filler when the reed is in the weft insertion position and serves to keep the inserted weft stretched during movements of the reed between a weft insertion and a beating up position. In order to shorten the overall length of the assembly, a weft stop motion for detecting the insertion of the weft is located on the fixed reed filler.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: April 3, 2001
    Assignee: Lindauer Dornier Gesellschaft GmbH
    Inventors: Herbert Reinhardt, Peter Czura
  • Patent number: 6206051
    Abstract: A weft yarn end removing mechanism is incorporated into a shuttleless loom that holds leading end part of a picked weft yarn under tension by a weft yarn tightening device and beats up the weft yarn into the cloth fell of a fabric on the shuttleless loom by a reed. The weft yarn end removing mechanism includes a weft yarn sucking device for holding the leading end part of the weft yarn beaten up into the cloth fell, and a weft yarn cutting device for cutting the leading end part of the weft yarn extending between the selvage of the fabric and the weft yarn sucking device. The leading end part of the picked weft yarn being shifted toward the cloth fell is sucked through a first suction opening into the weft yarn sucking device and then the leading end part moves from the first suction opening to a second suction opening of the weft yarn sucking device.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: March 27, 2001
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventor: Kiyoshi Arie
  • Patent number: 6155309
    Abstract: An apparatus for severing a weft thread which is to be inserted into a shed comprises a clamping device with a stationary clamping part and a settable clamping part in order to hold back the weft thread and a severing device in order to sever the weft thread after release by the clamping device. The severing of different yarn types is ensured by means of a problem-free clamping of the weft thread in the thread clamp.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: December 5, 2000
    Assignee: Sulzer Textil AG
    Inventor: Klaus Berktold
  • Patent number: 6109308
    Abstract: A fringed selvage retainer operating device is incorporated into a shuttleless loom to operate a fringed selvage retainer for preventing the folding of free ends of weft yarns which form a fringed selvage of a fabric on the shuttleless loom on an arriving side of the shuttleless loom. The operating device also shifts the fringed selvage retainer between a working position where the fringed selvage retainer is placed during a weaving operation and a waiting position where the fringed selvage retainer is placed during a faulty weft yam extracting operation by an actuator. The fringed selvage retainer is separated from the fringed selvage and shifted to the waiting position so that a faulty weft yarn may not twine around or may not be caught by the fringed selvage retainer when extracting the faulty weft yarn from a shed formed by reversing the shuttleless loom.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: August 29, 2000
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventors: Hidetomo Yoneda, Yutaka Uragaki, Manabu Kaida, Hideki Banba
  • Patent number: 6102082
    Abstract: A selvage cutter for a weaving loom has a cutter guide (9A, 9B) that causes the cutter to follow the cut fabric edge (8A) dependent on any fabric edge shrinkage locations (SL). The cutter guide has a guide claw (9A) that is elastically urged into contact with the cut fabric edge (8A) by a spring mechanism (14, 14A) which causes the cutting blades (3, 5) to move along a cutting path (8B) that follows the contour of the cut fabric edge (8A), whereby each cut weft thread end (8B) protruding from the cut fabric edge (8A) has the same length and the cutting line conforms to the contour of the cut fabric edge (8A) including shrinkage locations (SL).
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: August 15, 2000
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Josef Hehle, Hubertus Ludwig
  • Patent number: 6058980
    Abstract: A method for cutting a selvedge on a weft thread insertion side of a rapier loom equipped with a weft thread supply by creating a free space of warp threads arranged separately from a main warp body. The weft thread is inserted through an open shed of the warp body. The inserted weft thread is beaten, and inserted into a holding device which subjects it tension. The wet thread is cut after being beaten and while subject to tension. The end of the weft thread is inserted it into the open shed of the warp after the cutting.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: May 9, 2000
    Assignee: Gividi-Italia S.p.A.
    Inventors: Diego Armando Scari, Marco Scari
  • Patent number: 6039086
    Abstract: A method and an apparatus serve to process a catch selvage that has been trimmed from a web being woven on a loom, so as to separate weft thread ends and leno threads from the catch selvage to produce a type-pure weft thread waste and a type-pure leno thread waste or reusable leno threads. The term "type-pure" refers to a waste material containing a single uncontaminated type or color of thread material, e.g. wool vs. synthetic or blue vs. red. After the catch selvage (1) has been trimmed from the edge (11) of the woven web (2), the leno threads (4, 4') are untwisted from each other by being rotated by an untwisting apparatus (5) in a direction opposite the binding twist applied by the leno device (18).
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: March 21, 2000
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Peter D. Dornier, Valentin Krumm
  • Patent number: 5992471
    Abstract: A weft removal device removes a waste weft using a catch cord yarn without a shed motion. The device includes a spindle having a cling part formed at its one end portion for entangling a thread to a cord, and a bracket supporting the spindle. The device further includes a weft pusher, a weft pusher carrier, and a housing for containing the pusher and the carrier. The housing is positioned on a weft guiding plate having a plurality of reed holes. As the spindle is rotated, the waste weft clings to the cling part of the spindle and is entangled with the catch cord yarn. The entangled weft and yarn is collected in a box.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: November 30, 1999
    Assignee: Jet Engineering Co., Ltd.
    Inventor: Won Ki Chung
  • Patent number: 5762111
    Abstract: A weft cutting apparatus contains a first and a second cutting blade as well as a drive element which is connected to the second cutting blade and can be driven by the cloth directly. The cutting process is thereby synchronized with the speed of the cloth. The apparatus is arranged in a weaving machine in the region of the path of the cloth, wherein the apparatus can be placed at a suitable position independent of the weaving machine drive.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: June 9, 1998
    Assignee: Sulzer Rueti AG
    Inventor: Martin Frischknecht
  • Patent number: 5735316
    Abstract: An air nozzle weaving loom is equipped on its weft exit sides (E2) with a cutter (11), a suction opening (8A), a first weft stop motion sensor (4), a weft stretcher (6), and a second weft stop motion sensor (7) arranged in that order in the weft insertion direction. These components are operated to provide a complete monitoring and handling of the weft thread with regard to proper weft thread insertions. A control signal from the first weft stop motion device (4) activates a suction device (8, 9) connected to said suction opening (8A) while simultaneously deactivating the stretcher (6), when the leading end of the weft thread reaches the first weft stop motion device (4). The cutter is activated by the main loom control while the suction is applied to the suction opening (8A), whereby a cut off leading end (16A) of the weft thread (16) is removed by suction.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: April 7, 1998
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventor: Josef Hehle
  • Patent number: 5575314
    Abstract: A weft cutter for an air loom in which a movable blade is hinged to the ram of a pneumatic cylinder which is pneumatically fed through a solenoid valve provided at its inlet with a pressure regulator. The ram is kept in a rest position by a return spring and the solenoid valve is directly piloted from a loom control console.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: November 19, 1996
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Roberto Capitanio, Gianluigi Sora, Zanrosso Mauro
  • Patent number: 5560400
    Abstract: A method and apparatus for removing waste selvages (11) formed when weaving fabric on a loom includes a pair of selvage removal rollers (19, 23) fitted with friction coverings and driven against one another to form a gripping nip for engaging and drawing the waste selvage away from the woven fabric, whereby the waste selvage is first fed to the peripheral surface of the first one of the pair of removal rollers (19) over a wrapping angle larger than 150.degree. and preferably larger than 180.degree., before reaching the clamping nip between the rollers (19,23). Alternate embodiments of the invention are described.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: October 1, 1996
    Assignee: Picanol n.v.
    Inventors: Ignace Meyns, Patrick Glorie, Serge Vanrobaeys
  • Patent number: 5544679
    Abstract: A feed mechanism for several weft yarns, each with its own feed device capable of selecting the weft yarn to be inserted, includes sensors for monitoring the weft yarns for quality defects and for, upon detection a defect in a weft yarn, precluding the weft yarn from being selected for insertion until the portion of the weft yarn with the defect has been shunted into a region from where it can no longer be woven into the fabric.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: August 13, 1996
    Assignee: Picanol N.V.
    Inventor: Jo Tacq
  • Patent number: 5392819
    Abstract: A selvage forming and cord catching device for use in a loom includes a base adapted to be secured to the loom and has two planetary gear systems mounted on it. Each of the planetary gear systems has two planetary gears orbiting about a central axis. A cylindrical yarn guide member is secured at the center of each of the planetary gears to allow yarn to extend through the center of each of the planetary gears. The yarn is brought through a guide arm mounted on each of the planetary gears in an eccentric manner so that when the planetary gears rotate, the yarn passing out of each of the planetary gears of each of the planetary gear systems are fed to the loom in an inter-crossing and inter-winding manner to wind around each other. The yarn from one of the planetary gear systems is fed to the loom to form the selvage.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: February 28, 1995
    Assignee: Hunshin Enterprise Co., Ltd.
    Inventor: Chun-Yen Lin
  • Patent number: 5349990
    Abstract: A device or holding weft threads of a series-shed loom between a weft input side and a weft output side of a rotating rotor. The device includes one thread-holding device on the input side of the rotor, and one thread-holding device on the output side of the rotor, with at least one cutting device on the input side for severing inserted weft threads. Each weft thread holding device includes a device for clamping at least one weft thread at a first end on the input side, and at a second end on the output side. Each device for clamping includes a supporting surface extending substantially parallel to the central axis of rotation of the rotor and any device two endless conveyor belts lying over one another at least inside an angle of partial revolution of said rotor between said weft thread insertion angle to a weft thread discharge angle. The two conveyor belts are guided over guide rollers, so that an inlet slot for weft threads is produced in conjunction with the supporting surface.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: September 27, 1994
    Assignee: Sulzer Rueti AG
    Inventor: Lorant Gacsay
  • Patent number: 5253681
    Abstract: The reed of an air weaving loom is divided into spaced sections for forming a fabric gap. The warp threads are guided through the reed sections, but are absent in a zone of the fabric gap. The weft threads that would bridge the fabric gap are cut in the gap and formed into a selvage. The gap, is formed where the reed sections are spaced from each other to form a breach. A reed filler member is mounted in a stationary position in the reed breach, so that the filler member aligns with the reed sections when the reed is in the rear position. Only the reed sections perform the beat-up motion.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: October 19, 1993
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Gottfried Cramer, Gerhard Hofmaier
  • Patent number: 5224521
    Abstract: The weft yarn insertion mechanism exhibits at the side of the shed (6) where the weft yarn comes out a yarn holder device (13) for taking over and releasing the end (4") of the weft yarn, which comprises essentially two gripping parts (16, 17) and one nozzle (18). Preferably the one gripping part (16) is stationary and the other gripping part (17) movable and together they form a wedge shaped gripping gap (24). A blowing nozzle or suction nozzle (18) sucks or blows the end (4") of the end of the weft yarn into the gripping gap (24) at the moment when the weft insertion is finished.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: July 6, 1993
    Assignee: Sulzer Brothers Limited
    Inventor: Godert De Jager
  • Patent number: 5105856
    Abstract: A guide mechanism for presenting a weft thread to a cutter, especially in an air jet loom, has a weft thread guide pin which is driven up and down in synchronism with the beat-up motion of a loom slay, so that a beat-up weft thread is stretched by the guide pin either due to the return motion of the slay or by a horizontal motion component imparted to the guide pin in addition to its vertical movement. During the forward stroke of the beat-up motion of the slay the guide pin is out of the way of the weft thread. The cutting takes place when the weft thread is stretched across the cutter. The return motion of the slay and a forward motion of the guide pin can be combined for applying the proper tension to the weft thread to be cut.
    Type: Grant
    Filed: January 10, 1991
    Date of Patent: April 21, 1992
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventor: Adnan Wahhoud
  • Patent number: 5101094
    Abstract: The device for cutting textile material and sealing the edges of the cut material comprises a heated resistance wire of round cross section supported in a supporting means. The wire forms a flattened central portion shaped to form a semi-circular bow having a symmetrical shape with a curved outer edge ground to a feather cutting edge, an inner edge and two lateral flat faces parallel to each other along which the edges of the textile material are moved after being cut by combined mechanical and thermal action of the wire. The edges of the textile material are sealed thereby. Since the temperature of the wire can be kept relatively low, no ridges of melted material are formed along the edges of the textile material.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: March 31, 1992
    Assignee: Gebruder Loepf AG
    Inventors: Walter Keller, Hansruedi Stutz
  • Patent number: 5090456
    Abstract: A picking apparatus of a rapier loom has gripping bodies between a weft selection device and a yarn cutter. The gripping bodies are movable up and down. The gripping bodies selectively grip a plurality of weft yarns in accordance with a color pattern. One yarn cutter cuts the weft yarn gripped by the gripping bodies and severs the cut weft yarn from a woven cloth after the weft yarn is picked. Thus, neither catch cords nor an extra length of fringe nor a selvage cutter are needed.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: February 25, 1992
    Assignee: Tsudakoma Corp.
    Inventor: Junya Kasahara
  • Patent number: 5085917
    Abstract: This invention relates to a fabric having a radiation cured crosslinked coating composition applied to the selvages of the fabric to provide ravel resistance thereto. The coating composition is a copolymer of an elastomeric-forming low viscosity monofunctional acrylate monomer and a reactive polyfunctional acrylate monomer. A method of forming a ravel resistant selvage in a fabric is also provided.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: February 4, 1992
    Assignee: Thor Radiation Research, Inc.
    Inventor: William P. Hodnett, III
  • Patent number: 5040570
    Abstract: A method for collecting dust and waste in weaving machines wherein a continuous waste ribbon is generated during the weaving process includes blowing the dust and waste onto the ribbon while it is being wound on a waste spool to thereby collect and compact the dust and waste matter between ribbon windings. Apparatus for carrying out the method includes a vacuum nozzle arrangement for collecting the dust and waste and a conduit for transporting the aspirated dust and waste to the waste spool while the waste ribbon is being wound thereon. A specific blowing nozzle for carrying the dust and waste to the spool and ribbon, includes a housing arrangement for the waste spool that permits dust and waste not directly deposited on the waste ribbon to be picked up during the ribbon winding process.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: August 20, 1991
    Assignee: Picanol N.V.
    Inventor: Henry Shaw
  • Patent number: 4976292
    Abstract: A weft end treating device for a shuttleless loom comprises a yarn holding device which holds the free end of an inserted weft and tensions the weft in synchronism with the beating motion, and pushing dents for pushing the free end of the weft into the yarn holding device when the weft is beaten up. The yarn holding device is fixedly mounted on the frame of a loom at a position on the extension line of the cloth fell on the weft arriving side. The pushing dents are fixedly provided on the sley, of the loom opposite to the yarn holding device.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: December 11, 1990
    Assignee: Tagawa Kikai Co., Ltd.
    Inventor: Hiroyasu Matsumoto
  • Patent number: 4958664
    Abstract: An air jet weaving loom with a jacquard frame wherein harness threads are fed to a reed having a defined drawing-in width. Weft thread insertion devices are arranged on the weft insertion side. A catch side or weft exit side having an adjustable length, is provided with catching elements. The weft thread insertion devices have been arranged on the insertion side of the loom to be movable in the direction of the weft thread insertion for producing woven fabrics with different drawing-in widths.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: September 25, 1990
    Assignee: Lindauer Dornier Gesellschaft GmbH
    Inventors: Othmar Oppl, Wilhelm Rupp, Adnan Wahhoud
  • Patent number: 4905741
    Abstract: A pneumatic loom having at least two blow nozzles arranged in a bundle, is equipped with a weft thread insertion alignment device (2) located in a fixed position between the blow nozzles and the weft thread guide channel formed by the reed teeth. The alignment device (2) has an alignment slot having a funnel-shape receiving the weft threads at a wide inlet opening and leading the weft threads to a narrower outlet opening. The alignment slot extends along at least a portion of the path followed by the reed teeth on their beat-up motion. One end of the alignment slot is open toward the weft thread cutting scissors for exit of the weft threads. Weft threads waste is kept very low by the location of all relevant components close to each other. The effectiveness of the scissors is not impaired at all. The time available for the weft thread insertion is increased which means that the r.p.m. of the loom can be increased.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: March 6, 1990
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Adnan Wahhoud, Rudolf Riezler
  • Patent number: 4858657
    Abstract: A yarn cutting device for weaving looms having fixed reserves of weft and which operate with a gripper type weft-carrying shuttle wherein the shuttle supports a guiding member which carries the yarn towards the shed on the side of the loom. The guiding member includes two metal plates mounted between two resilient shims which allow the plates to be forced apart to receive a blade moved vertically into the path of the guiding member as the shuttle enters the shed to thereby sever the yarn. In an alternate embodiment, the guiding member is fixed adjacent the shed and the blade is carried by the shuttle.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: August 22, 1989
    Inventor: Aime Fabre
  • Patent number: 4834147
    Abstract: A scissors mechanism for cutting the weft thread in a shuttleless loom performs an excess stroke to bring the scissors mechanism, which is combined with a clamping mechanism, as close to the weft thread insertion gripper as possible in order to reduce weft thread waste. For this purpose, the fixed scissors blade is tiltable between a working position and a rest position in a plane extending substantially perpendicularly to the weft thread insertion direction. The movable scissors blade cooperates with a clamping arm for clamping the weft thread just prior to its cutting. For this purpose the movable scissors blade carries a clamping jaw next to its cutting edge and the clamping jaw cooperates with a clamping plate attached to a clamping arm coaxially mounted with the movable scissors blade.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: May 30, 1989
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Alois Eberle, Erich Peter, Rainer Steinberger
  • Patent number: 4834145
    Abstract: A method and apparatus for cutting a weft thread are disclosed in which a completely separate, independent drive system for the weft thread cutter and clamping device enables the cutting time to be optimized without affecting the main drive system for the loom. By using its own, independent drive system, which is completely independent of the main loom drive, the cutter can be actuated at any time during the loom cycle. The cutter and clamp drive system is controlled by a computer, which may be programmed to determine the optimum cutting time as a function of the weaving parameters and the weft thread data. A device may be provided to detect an improperly inserted weft thread. Once this has been detected, the computer may deactivate the cutting device to prevent the separation of the improperly inserted weft thread from the weft thread supply.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: May 30, 1989
    Assignee: Picanol N.V.
    Inventors: Dirk Lewyllie, Jose Vangheluwe
  • Patent number: 4784188
    Abstract: An air jet weaving machine has a weft deflector (7, 90, 23, 22) to keep the weft yarn away from the shed after the occurrence of a disturbance. The deflector is disposed between the picking nozzle (61) and the weft yarn entry into the weft duct (12). Before the discharge orifice of the picking nozzle (61) in the rear position of the sley (10) a rod-like yarn guide (90) extends as far as the shears (8), deflects the yarn into the funnel (23) and introduces the yarn into the shears (8). Thanks to the provision of the yarn guide (90), the weft yarn can be parted off by a single pair of shears (8) both after a normal pick and after a deflection. The weft yarn (5) is deflected by a blowing nozzle (7) transversely to the picking nozzle (61) by way of the yarn guide (90) and is removed by way of a funnel (23).
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: November 15, 1988
    Assignee: Sulzer Brothers Ltd.
    Inventor: Hubert P. van Mullekom
  • Patent number: 4778546
    Abstract: A screen fabric employed in screen printing is improved by flattening its selvages to the extent of the thickness of the ground of the screen fabric so that wrinkles having been occurred in the selvages of the wound-up fabric are removed to increase the yield of stencils obtained from the screen fabric. In addition, the thus flattened selvages make it possible to apply a sufficiently large tensile force to the screen fabric in its stretching operation in order to produce a highly precise stencil for conducting a precise screen printing of the circuitboard and the like.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: October 18, 1988
    Assignee: NBC Industries Co., Ltd.
    Inventor: Yozo Kitani
  • Patent number: 4699182
    Abstract: In an air jet loom having a movable suction conduit operatively connected to a suction source, a particular fringe cutting mechanism and waste fringe removal mechanism are provided that minimize yarn waste and minimize loom downtime. The fringe cutting mechanism is mounted upstream of the loom temple with respect to the direction of fabric movement, and is actuated by the movement of the reed of the loom as the reed moves in a downstream path of movement. The movable suction conduit, in addition to capturing the picks from the main jet of the loom, comprises the waste removal mechanism for removing cut fringe so that no fringe binder yarns, or the like, are necessary. The fringe cutter includes an anvil block with a lifting stiff wire extending outwardly from it to lift fringe yarn to be cut onto the block surface so that it is engaged by a cutting blade rotated into contact with the block.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: October 13, 1987
    Assignee: Burlington Industries, Inc.
    Inventor: Danny H. Allen
  • 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: 4655261
    Abstract: A yarn cutting scissors device suitable for use for cutting a weft is disclosed which is capable of decreasing the frictional force occurring between a stationary blade and a movable blade when both blades are successively engaged in the cutting operation and effectively accomplishing the accessible engagement between both blades. The yarn cutting scissors device includes a leaf spring which has one end fixedly mounted on a support block and the other end on which a stationary blade is mounted, a shim washer arranged between the support block and the leaf spring, and a compression coil spring mounted on the support block to constantly urge a movable blade against the stationary blade, so that the stationary blade may be oscillated in the direction perpendicular to that of oscillation of the movable blade.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: April 7, 1987
    Assignee: Takahashi Seimitsu Kogyo Kabushiki Kaisha
    Inventors: Kouji Takahashi, Rikio Takahashi
  • Patent number: 4653546
    Abstract: A water jet loom in which the catch cord guide plate flange portion is located between the feeler fingers of the loom and the catch cord guide is substantially in line with the outermost feeler finger to reduce the amount of fill yarn supplied to the catch cord of the loom.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: March 31, 1987
    Assignee: Milliken Research Corporation
    Inventor: Wilbur B. Burnett
  • Patent number: 4616680
    Abstract: The catch-cord selvage of a shuttleless or fluid jet loom is drawn between a pair of mating rollers having smooth surfaces under a prescribed tension that is matched to the fabric tension as it comes from the loom. The mating rollers include an idler roller which is driven by a drive roller, with the drive roller being positively driven without slippage by the fabric take-up roll. The surface speed of the drive roller is the same as the surface speed of the fabric take-up roll so that the catch-cord and the fabric are drawn from the loom at the same speed.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: October 14, 1986
    Assignee: Draper Corporation
    Inventor: Pepper Y. Lai
  • Patent number: 4607667
    Abstract: In a loom of the type wherein the filling yarn is inserted into the warp shed in the form of cut lengths and wherein a reed serves for beating-up the inserted filling yarn into the fabric at the fell of the cloth, the combination therewith of improved means for severing the terminal ends of filling yarns projecting outwardly from at least one of the selvages of the fabric being woven; which improved means comprises positioning a cutter adjacent at least one end of the reed, and providing a relatively wide widthwise extending opening in the reed adjacent the end where the cutter is positioned, with the opening being of a width substantially greater than the dent spacing of the reed; so that when the reed is reciprocated in beating-up the filling yarn into the fabric, the cutter has portions thereof that are positioned in the opening in the reed for severing the terminal ends of the filling yarn close to the selvage of the fabric being woven.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: August 26, 1986
    Assignee: Texfi Industries, Inc.
    Inventor: Carroll A. Gibson