Splicing Patents (Class 57/22)
  • Patent number: 6039281
    Abstract: A method for joining textile yarns to restore their continuity each time this becomes necessary in a winding unit, wherein the method is implemented in a joining device which operates several successive steps, one following another, to achieve a continuous connection. The individual operations involved in the method for joining being independent of each other and being autonomous and flexible in their implementation, each implemented step being subjected to an acceptance check based on predetermined quality standards before proceeding to the next operation in the same joining cycle.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: March 21, 2000
    Assignee: Savio Macchine Tessili SpA
    Inventors: Roberto Badiali, Luciano Bertoli, Giorgio Colomberotto
  • Patent number: 5970697
    Abstract: A rope or line having a permanent loop of fixed diameter spliced in each end thereof provides for the suspension of innumerable articles in various industries, but is particularly well suited for use in underground mining, where it may be used to support continuous miner machine cables, electric, pneumatic, and hydraulic lines, air ventilation ducts, etc., above the floor of the mine drift. The line is preferably formed of a braided synthetic fiber which has been treated to provide flame retardant properties and which is also electrically non-conductive. Treated, braided polypropylene is a suitable material for the present double looped line. The closed loops are formed by passing the first end of the line diametrically through its opposite portion, and then coaxially through that same portion and diametrically through the portion captured within the hollow braided core to secure the first end therein and to form a closed loop.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: October 26, 1999
    Inventors: William J. B. Jacobs, Tanya S. Jacobs, Mark W. Jacobs
  • Patent number: 5901632
    Abstract: A method for forming a braided rope. Twisted yarns are first braided together to form braided strands, and the braided strands are then braided together to form the rope. The diameter of the individual twisted yarns is kept to a minimum, thereby reducing the number of twisting stages required to form the yarns and also permitting heat stretching treatment using existing systems. Moreover, in-line connections can be made within the individual strands using conventional braided rope splices, which both eliminates the need to use long splices during manufacture of the rope and enables individual strands to be spliced in the field to so as to repair snags, cuts, and other service damage without having to replace an entire length of the rope.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: May 11, 1999
    Assignee: Puget Sound Rope Corporation
    Inventor: Richard J. Ryan
  • Patent number: 5862660
    Abstract: A method for removing both long and short yarn defects at the winding heads of a bobbin winding machine. Following the appearance of a yarn defect, the length of the defective yarn between the time of the appearance of the defect and the time of a subsequent yarn cut is determined. A suction tube is positioned in front of the winding bobbin to aspirate the defective yarn therefrom. The yarn is unwound, the entry of the yarn into the suction tube is determined by means of a sensor disposed therein, and the yarn length unwound from the winding bobbin and entering the suction tube is determined.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: January 26, 1999
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Rolf Haasen, Heribert Kargel, Hans-Gunter Wedershoven
  • Patent number: 5829706
    Abstract: A yarn end preparation device for a cheese-producing textile machine includes at least one preparation nozzle having a mouth. A clamping device and a cutting device manipulate a yarn to be prepared for a subsequent operation. The cutting device is disposed in the immediate vicinity of the mouth of the at least one preparation nozzle. An additional loop former is also provided.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: November 3, 1998
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Siegfried Schatton, Ulrich Wirtz
  • Patent number: 5813209
    Abstract: Piecing method of a spinning machine whereby, after holding outside a twist device both a leading yarn ejected from the sliver guide entrance of a twist device in a stationary state and a sliver delivered by a re-operated draft device, the twist device is operated, the sliver supplied to the twist device and the fibers comprising the sliver are entangled in the leading yarn pulled from the twist device. The success rate of yarn piecing may be improved without detailed adjustment of the pulling timing of the leading yarn guided into the twist device and the supply timing of the sliver supplied to the twist device.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: September 29, 1998
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Osamu Hirao, Masahiko Nishimura
  • Patent number: 5809761
    Abstract: A pneumatic yarn splicer comprises a splicer body which defines a splicing chamber in which yarns to be spliced are disposed. The chamber has an open side and open ends, with an enlarged section therebetween. A pad is provided for closing the open side of the chamber, and a port in the chamber wall normally substantially opposite the open side, provides for delivery of an air blast to splice yarns in the chamber. A restrictor plate is fitted at one end of the body to partially close an open end of the chamber.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: September 22, 1998
    Assignee: Pentwyn Splicers Limited
    Inventor: Graham T. Waters
  • Patent number: 5772136
    Abstract: The machine comprises a yarn guide for axially guiding the yarn on the receiving cross bobbin, for each wound off yarn at least one yarn watcher, a cutting device for cutting through the yarn, a yarn tensioner and a joining device for joining yarn ends, where a yarn monitor with a method of controlling is provided for controlling and correcting the assembled yarn bundle and rewinding the cross bobbin, a gripper device for gripping the yarn ends on the cross bobbin, a gripper device for inserting each yarn into the joining device, a gripper device for receiving and holding the yarn ends, a wind-off eye for the shared winding-off of the assembled yarns installed above the yarn joining devices, and a method of control for these devices, where the method of control are separately controlled.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: June 30, 1998
    Assignee: Textielmachinefabriek Gilbos N.V.
    Inventors: Erik Gilbos, Emiel Rubbrecht, Christian Van Hautte, Tom Jacobs
  • Patent number: 5768873
    Abstract: A method used in conjunction with a yarn splicing device having a pneumatic splicing chamber, a compressed air line connecting the splicing chamber to a source of compressed air, an electromagnetic splicing valve disposed within the compressed air line and having two transitional positions (open and closed) for controlling delivery of the compressed air to the splicing chamber, and a control unit connected to the valve for initiating a transitional signal to the valve for opening and closing of the valve, the method including, after initiating the transitional signal to the valve, the steps of determining a value representing a characteristic of the changing air pressure prevailing in the compressed air line resulting from a transition of the valve from the open position to the closed position, comparing the determined value with a reference value, and generating an error signal if the difference between the determined value and the reference value is greater than a predetermined variance value.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: June 23, 1998
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Joachim Stiller
  • Patent number: 5765352
    Abstract: A yarn splicing device and method provides for overlapping yarn ends from different spools or packages of yarn to form a smooth, continuous splice. The device allows the operator to place the different yarn ends in a pair of clamps that are separated by a pneumatic commingling jet. After the yarn is clamped into place the yarn ends, which consist of multi-filament yarns, are pneumatically commingled and thereafter the clamps are rotated in opposite directions from the commingling jet to stretch the splice junction to reduce the diameter thereof. Thereafter the clamps release the spliced yarn so it is available for removal and further processing such as texturizing. The splicing method described provides a fast, efficient method which provides for uniform yarn diameter which does not slow or obstruct other yarn processing steps by snagging or breaking at the splice junction.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 16, 1998
    Assignee: Petree and Stoudt Associates
    Inventor: Daniel P. McRae
  • Patent number: 5699657
    Abstract: Braided line splices and methods of making such splices using an inverted sleeve formed from a part of the braided line sheath, the steps forming the sleeve being at least a part of the method. The sleeve is formed by inverting it (turning it inside out), and then running a braided line part through the sleeve, tensioning the sleeve and having it grip the line part within the sleeve. Variations include making eye splices, both slipping and non-slipping; belt or loop splices, both slipping and non-slipping; and butt splices. Kits may be packaged which provide the necessary items and information to complete such splices.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: December 23, 1997
    Inventor: William Thomas Paulson
  • Patent number: 5680751
    Abstract: A pneumatic thread or yarn knotless joining apparatus for installation on the winding positions of an automatic bobbin winding machine is provided with its own reversible electric stepping motor to cause stepwise rotation of the group of controlling drum cams firstly in an outward direction starting from a starting position and then in the return direction for controlling the synchronized movements of the various movable members.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 28, 1997
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 5651507
    Abstract: A yarn splicing device for textile winding machines comprises a splicer mechanism for pneumatically joining yarn ends, upper and lower clamping and cutting devices, and suction-actuated yarn placement devices for placing the yarn ends to be spliced. According to the invention, one yarn placement device is a gripper tube normally parked in a zero position upstream of the yarn travel. The gripper tube has a spring-biased, pivotable gripping flap and a yarn placement hook for simultaneously placing both the lower yarn and the upper yarn to be spliced. For that purpose, one of the gripper tube and gripper tube flap carries the yarn placement hook forwardly for manipulating the upper yarn and a yarn guide disposed between the yarn placement hook and the pivot axis of the flap for placing the lower yarn.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: July 29, 1997
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Herbert Ruskens, Leo Tholen, Siegfried Schatton, Ulrich Wirtz, Gregor Ruth, Joachim Stiller
  • Patent number: 5649414
    Abstract: A utility loop includes a loop of fiber which forms the loop core. The loop of fiber is made from a thread wrapped into a plurality of loops. The two loose ends of the thread can then optionally be tied together to form the loop of fiber. The outer loop cover of the utility loop is a tube of braided material, which surrounds loop of fiber. The tube of braided material has a tube axis running along a length of the tube of braided material. The tube of braided material includes a relatively small number of relatively large-diameter monofilament fibers, which are braided together in a tubular form. All of the relatively large-diameter mono-filament fibers are oriented to form acute angles with the tube axis. The two loose ends of the tube of braided material are connected together to form the utility loop. Specifically, a first opposing end of the tube of braided material is slipped over a second opposing end of the tube of braided material to thereby form an overlap.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: July 22, 1997
    Assignee: McDonnell Douglas Corp.
    Inventors: Blaine K. Rawdon, James S. Wells, Myles A. Rohrlick
  • Patent number: 5619848
    Abstract: A method and apparatus for automatically removing a slub from spun filament yarn and a sliver or roving of staple fibers. The sliver or roving of staple fibers are fed through a drafting apparatus to prepare a continuous bundle of staple fibers. The filament yarn is pretensioned such that a texture is temporarily substantially removed. The continuous bundle of staple fibers and the filament yarn are combined downstream of the drafting apparatus. The combined continuous bundle and the filament yarn are fed into a spinner. The spun filament yarn and staple fibers are monitored to detect imperfections of a predetermined magnitude. A first signal is generated upon detection of an imperfection of the predetermined magnitude. The feeding of the staple fibers is stopped in response to the first signal. The core yarn is clamped at a predetermined position in response to the first signal.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: April 15, 1997
    Assignee: Prospin Industries, Inc.
    Inventors: Manual Costales, Mark J. Yukob, Charles W. Proctor
  • Patent number: 5603462
    Abstract: A sewing machine is provided for splicing together two different threads. The machine includes a thread tree with a number of thread spools with each thread thereof being inserted through flexible plastic tubing. A movable carriage assembly locates the new thread to be spliced relative to a splicing device passageway that receives the new thread to be spliced along with the old thread. The splicing device includes a front air inlet for drawing the new thread into the passageway of the splicing device and a rear air inlet for creating air turbulence during the splicing operation. Also used in moving the new thread through the passageway is an insertion drive roller connected to a pivotal rocker. A thread clamp cover connected to the rocker cooperates with the trimmer blades to trim the old thread. A thread clamp and a thread clamp magnet cooperate to hold the old thread in a desired position during the insertion of the new thread into the splicing device.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: February 18, 1997
    Assignee: Melco Industries, Inc.
    Inventors: Daniel J. Conrad, Luther Stoddard, Michael G. Weir, Samuel Padgett, Dean Pearson, Karl Kott, Kurt L. Bolldorf
  • Patent number: 5561973
    Abstract: A flexible sling construction, without external compression sleeves or termination splices, made from three strands of material twisted into a single length of cable and formed into a nine strand body section having eye closure loops comprising six strands at each end thereof which eye closures are formed by looping each end of the cable back upon itself and inserting the cable end through the strands of cable at points removed from each end, and which body is formed by helically winding the first end of cable which extends from a first eye closure back around the body in the direction of the second eye closure and then wrapping it around the second eye closure to form a flemish eye, then leading the first end of cable and winding it in a helical wind back around the body and returning it in a direction toward the first eye closure, and wrapping it to form another flemish eye, and terminating the construction by splitting apart the end of the three strands of the first end of cable length and splicing the sep
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: October 8, 1996
    Inventor: Dennis St. Germain
  • Patent number: 5531391
    Abstract: An automatic yarn winder wherein a yarn is taken up from a yarn supply bobbin and wound in a package and defects of the yarn is detected and the detected defect in the yarn is cut out and removed. The trailing cut end of the wound yarn and the leading end of the cut yarn are joined comprising yarn take-up device, stopping device for stopping yarn take-up when the number of detections becomes higher than a pre-fixed number for a fixed length of yarn being wound and taking up device for taking up the yarn from the yarn supply bobbin for a predetermined time after such stopping and joining the leading end of the remaining yarn on the yarn supply bobbin to the trailing end of the yarn on its package and re-starting taking up.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: July 2, 1996
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Atsushi Yamamoto
  • Patent number: 5523139
    Abstract: Disclosed is a method and apparatus for forming diagonal splices in flexible, fusible material and the material spliced accordingly. The splice is formed by overlapping the material, tensioning the material at the area to be spliced, and heating a strip of the material under tension to its fusion temperature, thereby fusing and separating the material at the strip. The splice is nearly undetectable to the untrained eye.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: June 4, 1996
    Assignee: Eastman Chemical Company
    Inventors: Kyle E. Morrison, Kenneth R. Wilmoth, Richard D. Neal, Jimmie L. Cox
  • Patent number: 5484116
    Abstract: A method and apparatus for moving individual yarn ends into a yarn disposition at a yarn end joining device in a winding station of a bobbin winding machine includes moving individual in succession a yarn end from a delivery bobbin to the yarn end joining device, and a yarn end from a take-up bobbin to the yarn end joining device by a single yarn manipulator device.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: January 16, 1996
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Dieter Horak, Uwe Fabelje, Joachim Stiller, Dietmar Engelhardt, Norbert Corres, Petra Vautz, Arnold Muck, Ulrich Wirtz
  • Patent number: 5479769
    Abstract: A method and device (100) for connecting the ends of two assemblages (1A, ) of threads (10A, 10B). The ends of the assemblages (1A, 1B) are subjected to an untwisting operation in order to separate the threads (10A1, 10B1) of these ends from each other; as many junction pairs (C) as there are threads (10A1, 10B1) are formed in each of the assemblages (1A, 1B); the filaments of the threads (10A1, 10B1) in the pairs (C) are untwisted, the untwisted parts are placed side by side in each pair (c) so as to obtain a junction region (15); the filaments of the two threads (10A1, 10B1) are assembled together by air splicing in each region (15); all the threads (10A, 10B) thus combined are assembled together by twisting. Joint assemblages thus obtained. Articles, for instance automobile tires, reinforced with these assemblages.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: January 2, 1996
    Assignee: Compagnie Generale des Etablissements Michelin - Michelin & Cie
    Inventors: Jean Belloy, Pierre Jonville, Guido Valente
  • Patent number: 5406781
    Abstract: An untwisting nozzle is provided with a cylindrical untwisting space for receiving whirling air currents, having a relatively small diameter, a cylindrical yarn sucking space for receiving suction air currents, having a relatively large diameter and formed in parallel to the untwisting space, and a slit interconnecting the untwisting space and the yarn sucking space.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: April 18, 1995
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Atsuto Yokoya
  • Patent number: 5357740
    Abstract: A device and method for splicing yarns. The device includes a single passageway through which pressurized air is supplied to a splicing chamber dimensioned so as to cause turbulent air flow within the chamber when pressurized air is introduced. The device may also include a slot for quickly and easily feeding the yarns into the splicing chamber. A blade may be secured within the device to sever the yarns and provide a sufficiently short and uniform tail that will be accepted by needles conventionally used in the carpet manufacturing machinery.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: October 25, 1994
    Inventor: Darron Moreland
  • Patent number: 5351469
    Abstract: In a spinning machine having a plurality of spinning units arranged next to one another and having a movable servicing apparatus which can be applied to the individual spinning points for the piecing, it is provided that the servicing apparatus has a splicing device with a splicing duct directed toward the spool package. A yarn storage device is arranged approximately as an extension of the splicing duct and a guiding element of the servicing apparatus which transfers the newly spun yarn in the area of the yarn storage device can be brought between a device for the withdrawal of a yarn and devices for picking up this yarn which can be moved into the area between a spool package and the splicing device.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 4, 1994
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Oskar Karolyi
  • Patent number: 5337547
    Abstract: A portable cable splicing stand comprises a longitudinally elongated base frame arranged to be supported above a ground surface as by removable leg members. A pair of adjustably spaced apart upright members extend vertically from the base frame, and each supports a chain vise arranged to receive and clamp between them a desired length of cable to be spliced. One of the chain vises is mounted on the frame for rotation about the axis of the cable so that with a cable clamped by the vises, rotation of the one vise in the direction opposite the windings of the cable untwists the cable between the vises and opens spaces between the individual strands so that the terminal ends of individual cable strands may be woven therethrough easily and without significant effort. A ratchet assembly engages the rotatable vise mount to releasably lock the assembly against reverse rotation of the vise when the cable is in tensioned condition.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: August 16, 1994
    Inventor: Ronald V. Bernard
  • Patent number: 5337548
    Abstract: A splicing apparatus and method for splicing rope, which apparatus includes a wheeled frame fitted with a splicing plate having upward-standing, spaced rope clamps for receiving and clamping rope segments to be spliced. In a preferred embodiment, a vise is also mounted on the splicing plate for removably receiving a dowel clamp which clamps one end of a dowel on the splicing plate, with the other end of the dowel supported by a cylindrical dowel keeper. A dowel is stabilized in the dowel clamp and dowel keeper and is designed to receive a length of rubber sleeve. The dowel keeper further receives a plastic cylinder or transfer tube inserted on one end of the dowel through the dowel keeper, adjacent to the rubber sleeve to facilitate rolling the rubber sleeve on the transfer tube as a rubber "donut" sleeve.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: August 16, 1994
    Inventor: Phillip R. Kelly
  • Patent number: 5329756
    Abstract: There is described an automatic device for restarting a two-for-one twisting station after yarn interruption, the device being provided on a carriage which patrols the twisting machine faces and is equipped to discharge a completed bobbin, seize the yarn ends from the feed side and the bobbin side and convey them to a joining device, join said ends, pick up a new tube and position it on the bobbin carrier arm, bring the yarn ends on the feed side up to it and restart the station, so restoring the yarn flow.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: July 19, 1994
    Assignee: Savio S.p.A.
    Inventors: Roberto Meroni, Umberto Gerin, Fabio Lancerotto, Vittorio Colussi
  • Patent number: 5327712
    Abstract: In a textile spinning apparatus a yarn joining device (12) begins to work to join the end of a newly spun yarn with a retrieved yarn end after the breakage of a yarn (2). During the joining process draw-off rollers (3) continue, to supply the yarn (2) such that yarn storage members (4, 11) have to be implemented during the joining process. In order to draw the yarn (2) into the interior of the yarn storage members (4, 11), air suction is applied in a known manner. After the yarn (2) joining process is completed in the yarn joining device (12), the yarn storage members (4, 11) are successively emptied by use of an acceleration in yarn draw off speed effected by a yarn storage draw-off roller (7) and an auxiliary friction roller (14).
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: July 12, 1994
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Harold Dallmann, Martin Werder, Ernst Ott
  • Patent number: 5319914
    Abstract: In a device for the knotless joining of threads and yarns using compressed air, a chamber is provided including central region of substantially U or V cross-section, possibly with a flat base, and two lateral regions of substantially circular cross-section. The slits of the three regions, through which the yarns to be joined are inserted, form a continuous common gap which is closable frontally by a cover. A nozzle opens into the base of the central region in a direction perpendicular to the frontal opening of the slit of said central region, and a nozzle opens into the base of each lateral region opposite the frontal opening of the relative slit in a direction substantially tangential to the circular cross-section, these latter two nozzles being in opposing positions and feedable with compressed air via a duct which is separate from the feed duct for the nozzle opening into the central region.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 14, 1994
    Assignee: Mesdan S.p.A.
    Inventor: Mauro Premi
  • Patent number: 5289673
    Abstract: The device involves the use of two nozzles (5 and 6) alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: March 1, 1994
    Assignee: Mesdan S.p.A.
    Inventors: Remi Cottenceau, Erwin Zuercher
  • Patent number: 5280698
    Abstract: There is provided a thread splicing arrangement having a splicing head with a splicing channel. In the vicinity of the ends of the channel, holding devices can clamp the ends of the threads during the splicing, and cutting arrangements can cut the free ends of the threads. The holding devices hold the threads near the base of the splicing channel. Pressurized gas channels are provided on both sides of the middle of the splicing channel. The outlets of these gas channels are located in the channel base and extend on both sides of a longitudinal plane of symmetry of the splicing channel. The axes of the pressurized gas channels approach that plane of symmetry at equal but opposite angles. This leads to a simple mode of construction providing good splicing for various different thread materials.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: January 25, 1994
    Assignee: Karl Mayer Textilmaschinenfabrik GmbH
    Inventors: Ditmar Gerstner-Stevens, Adalbert Balbach
  • Patent number: 5277018
    Abstract: In a method for connecting two yarn ends to one another, each yarn end is held at two longitudinally spaced apart points and an axial untwisting is introduced. These two untwisted ends are then joined together head to tail by gripping the central portion. There is next induced in the untwisted portion of each end between the central gripped portion and the respective yarn holding point by means of which the untwisting was induced, an axial excess untwisting with simultaneous winding of the free fibre ends about the portion subjected to excess untwist. The twist is retransferred by releasing the central portion during this operation.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: January 11, 1994
    Inventor: Carlos Pujol-Isern
  • Patent number: 5272862
    Abstract: In the case of a spinning machine having a plurality of spinning units and a movable arrangement for eliminating a yarn breakage which comprises devices for storing the newly spun yarn during the establishment of a yarn connection, it is provided that the devices for the storing of the yarn comprise a sensor which determines a predetermined point in time of the emptying. The sensor is connected to a control device and the signal of which determines the starting point in time of a time period given in the control device during which the drive of the auxiliary winding device still continues to run at an increased winding speed as compared to normal spinning operations.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: December 28, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Fritz Stahlecker, Josef Scholz
  • Patent number: 5255502
    Abstract: In a spun yarn forming textile machine, when a spun yarn delivered from a yarn forming device at a predetermined constant speed and a yarn withdrawn from a yarn package are pieced to each other, a splicer is used to piece together the yarn. After withdrawing a yarn from a yarn package with a predetermined length, the yarn piecing operation is carried out. Rotation of the yarn package is started before the yarn piecing operation is completed. Therefore, snarling can be prevented and the construction of the yarn storing means can be simplified.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: October 26, 1993
    Assignee: Toray Engineering Co., Ltd.
    Inventors: Takashi Iwade, Tadahiko Okubo
  • Patent number: 5224330
    Abstract: In the case of an arrangement for the intermediate storage of a yarn, a drivable storage roller is provided which helically receives the yarn and to which a yarn transfer device is assigned which has a yarn guiding element deflecting the arriving yarn to the storage roller and which can be moved axially with respect to the storage roller.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: July 6, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5182900
    Abstract: A method for checking operation of a pneumatic splicer for joining two yarn ends at a textile machine includes feeding splicing gas for a predetermined period of time to a splicer to be checked for splicing a particular yarn batch without having yarn ends laid in place in a splicing conduit of a splicer head of the splicer to be checked. At least one status variable of outflowing splicing gas is measured during the predetermined period of time at a given opening in the splicer head. A reference value is measured at another splicer producing replicable spliced joints meeting a previously defined quality and being identical to the splicer being checked, by feeding splicing gas to the other splicer without yarn ends being laid in place in the splicing conduit and measuring the reference value at a given opening in the splicer head. The at least one status variable is compared with the measured reference value and deviations are ascertained.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: February 2, 1993
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Dieter Horak, Hans-Heinz Schafer
  • Patent number: 5175983
    Abstract: A yarn splicing device for piecing spun yarns without knots. It contains a yarn splicing chamber and a small pipe through which fluid flows, at a distance from the yarn splicing chamber. The small pipe serves to receive a yarn end and to prepare it for the splicing process. The small pipe has a roughened inner surface which makes contact with the yarn end in a battering manner. In the process for the yarn end preparation, the small pipe is traversed turbulently by a fluid. The yarn end is battered by the turbulent flow against the roughened inner surface of the small pipe until the yarn end is free of twist.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: January 5, 1993
    Assignee: Schubert & Salzer Maschinenfabrik AG
    Inventors: Peter Artzt, Heinrich Preininger, Gerhard Egbers
  • Patent number: 5175982
    Abstract: In a process and apparatus for spinning a package with a double yarn, which is used as a feed package for a subsequent twisting operation, it is provided that, when one or both fed slivers run out, an automatic splicing of new slivers is carried out.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: January 5, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5167111
    Abstract: The method involves the use of two nozzles (5 and 6) which alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symmetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: December 1, 1992
    Assignee: Mesdan S.p.A.
    Inventors: Remi Cottenceau, Erwin Zuercher
  • Patent number: 5155987
    Abstract: A splicing arrangement for the connecting of yarns, particularly of staple fiber yarns. The splicing arrangement includes a splicing head, yarn clamps, cutting devices, loop pulling devices and devices for preparing the yarn ends which were cut with respect to their length. It is provided that the devices for preparing the yarn ends each comprise a friction surface in the form of a driven apron which moves in the direction of the yarn end, the apron, together with a countersurface, forming a gap receiving the yarn end to be prepared.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: October 20, 1992
    Assignee: Wilhelm Stahlecker GmbH
    Inventor: Armin Vogel
  • Patent number: 5152131
    Abstract: A device for joining textile yarns by compressed air in which the joining head comprises a longitudinal chamber divided into two parts by a transverse central fissure, at least one air nozzle opening into each of said parts, that nozzle opening into one part creating an air swirl in one direction of rotation and that nozzle opening into the other part creating an oppositely directed air swirl, the air swirls being in the direction of the original twist of the yarns to be joined. In the transverse central fissure there is disposed a separator baffle provided with a yarn positioning region, the baffle physically separating the two parts of the chamber while leaving a central air vent free. To increase the air quantity discharged through the vent, a transverse fissure can also be provided in the cover which frontally closes the chamber during the joining operation.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: October 6, 1992
    Assignee: Mesdan S.p.A.
    Inventor: Lorenzo Locatelli
  • Patent number: 5149001
    Abstract: Method and apparatus for separating a doubled yarn into single yarns in order to piece a doubled yarn. The doubled yarn is separated by separating members such as a clamper opened and closed in a manner of scissors, push- and separate member having an extreme end sharpened, and a plurality of yarn separating rollers having tapered portions being placed in contact with each other. Feelers or sensors may be located to provide a yarn separation signal.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: September 22, 1992
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Susumu Banba, Junichi Teranishi, Shoji Sakai, Makoto Uramoto, Hiroshi Uchida
  • Patent number: 5142856
    Abstract: A yarn piecing method for a yarn spinning machine including a yarn processing portion comprising a drafting unit, a yarn forming unit, and a yarn winding unit and a yarn piecing unit for piecing an end of a yarn spun from the yarn forming unit with an end of a yarn withdrawn from a yarn package, the method including the steps of guiding yarns to be pieced to each other to a yarn sensor before a yarn piecing operation is carried out, detecting whether any yarn defect exists on one or more of the yarns to be pieced, and determining to carry out the yarn piecing operation when no yarn defect is detected and not to carry it out when a yarn defect is detected.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: September 1, 1992
    Assignee: Toray Engineering Co., Ltd.
    Inventors: Takashi Nakayama, Takashi Iwade
  • Patent number: 5127595
    Abstract: There is provided a process for inspecting a splicer provided for splicing yarn ends upon the occurrence of yarn breakage or the like in an automatic winder, the process comprising the steps of, after splicing yarn ends, taking up the spliced yarn at a low speed and restraining the yarn on the yarn supply side to impart a predetermined tension to the yarn, detecting whether yarn breakage indicative of malfunction of the splicer has occurred, and, if the yarn breakage indicative of malfunction of the splicer has not occurred, cutting the spliced yarn, and re-splicing the yarn ends of the yarn thus cut.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: July 7, 1992
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Shoichi Tone
  • Patent number: 5118044
    Abstract: The method for separating doubled yarns comprises moving forward a clamper which is opened and closed in a manner of a pair of scissors in an open state forward two yarns arranged in a pulled form, positioning said pulled yarns into an opening of the clamper and thereafter closing the opening, clamping one yarn positioned deep in the opening more strongly than the other, and moving backward the clamper to thereby separate the strongly clamped yarn from the other while clamping the strongly clamped yarn.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: June 2, 1992
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Susumu Banba
  • Patent number: 5115629
    Abstract: In a method and apparatus for preparing yarn ends, two yarns to be joined together by pneumatic splicing are placed in a splicer head of a splicer at a given instant with ends of the yarn to be prepared protruding out of a splicing channel of the splicer head in mutually opposite directions. The yarn ends are held taut at given points. The yarn ends protruding from the splicing channel are shortened to a length required for a splicing process by cutting off portions of the yarn ends between the given points and the splicer head and producing cut edges. The yarn ends to be prepared are aspirated with the cut edges leading into respective preparation nozzles at a predetermined speed. Twists in the yarn ends beginning at the cut edges are pneumatically unravelled with compressed air during the aspiration into the preparation nozzles. Locations of the yarns in the splicing channel are maintained relative to one another and to the splicing channel from the given instant until the pneumatic unraveling is completed.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: May 26, 1992
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Heinz Zumfeld
  • Patent number: 5105613
    Abstract: In the case of an arrangement for the intermediate storage of a double yarn formed of two yarn components, a suction chamber is provided which has an air permeable depositing surface for the double yarn. In addition, an air nozzle is provided at the inlet side of the suction chamber which receives the double yarn and delivers it to the suction chamber.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: April 21, 1992
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventors: Werner Zott, Winfried Joos
  • Patent number: 5105611
    Abstract: In a yarn splicing device having a splicing head defining a splicing chamber and a yarn insertion slot, a compressed air passageway network is formed for delivering compressed air into the splicing chamber, the passageway arrangement having opposed air discharge passageways which extend laterally with respect to the splicing chamber in spaced relation therealong in a common plane at the back side of the chamber opposite its entrance slot to open tangentially into the chamber in opposite directions for contacting the yarn ends with one another for splicing.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: April 21, 1992
    Assignee: W. Schlafhorst & Co.
    Inventors: Heinz Zumfeld, Reinhard Mauries
  • Patent number: 5094377
    Abstract: In an arrangement for the temporary storage of a yarn between a splicing device and a continuously yarn-delivering delivery device, a ring-shaped depositing chamber is provided, which chamber can be rotated around a shaft which is directed transversely to the yarn-conveying direction, the bottom of this depositing chamber being air-permeable and connected to a suction device.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: March 10, 1992
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5079908
    Abstract: An arrangement is disclosed for carrying out a yarn piecing at a spinning point of a spinning machine. The arrangement includes devices for connecting the old and the new yarn, devices for the intermediate storage of the yarn length of the new yarn produced during the connecting, and devices for winding the connected yarn onto a spool package. It is provided that a control device for the drive of the package spool is connected to a device for determining the expected point in time of the using-up of the intermediately stored yarn length and controls the reduction of the speed of the devices for the winding-up.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: January 14, 1992
    Assignee: Hans Stahlecker
    Inventor: Fritz Stahlecker