Threading Up Patents (Class 57/279)
  • Patent number: 9382645
    Abstract: An overfeed roller assembly for use on a rotating drive shaft of a textile machine is adapted for adjusting downstream tension in a continuous moving length of yarn. The overfeed roller assembly comprises a base assembly designed for mounting on the drive shaft, and an annular yarn tension adjuster carried by the base assembly. The tension adjuster comprises opposing closely spaced yarn-contacting walls. The yarn-contacting walls define a shallow generally serpentine depression in the tension adjuster adapted for receiving the continuous moving length of yarn. Yarn tension downstream of the roller assembly is thereby reduced as the moving yarn meanders through the tension adjuster in frictional contact with the yarn-contacting walls of the serpentine depression.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: July 5, 2016
    Assignee: American Linc, LLC
    Inventor: Donald Lynn Hoover
  • Patent number: 8256201
    Abstract: A yarn brake for a two-for-one twisting spindle has a brake element mounted in the region of a hollow axle of the spindle between an upper and a lower brake face, the braking force being predeterminable in a defined manner by means of the pretensioning of at least one spring element, which acts on an axially displaceably mounted upper piston, in which the upper brake face is integrated, and the yarn brake being pneumatically releasable to introduce a yarn. The upper piston (27) receiving the upper brake face (28) is configured in such a way and guided with play (S) within a housing (16) of the yarn brake (14) in such a way that it can move aside if necessary into a position (I), in which its center longitudinal axis (37) forms an angle (?) with the center longitudinal axis (38) of the housing (16).
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 4, 2012
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Joachim Beckers, Markus Beckmann, Ingo Filz, Heinz Fink, Jürgen Schnitzler
  • Patent number: 8041457
    Abstract: A robot configured to check whether an object is properly grasped by a hand determines whether the position and posture of a handle (object), determined based on an image obtained by a camera (external information), and the position and posture of the handle in the case where the handle is assumed to be properly grasped, determined from the posture of a robot based on an output or the like of a rotary encoder (internal information), agree with each other. In response to the determination of whether the external information and the internal information agree with each other, it is determined whether the handle is properly grasped based on a force detected by a six-axis force sensor provided on each hand.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 18, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventor: Nobuyuki Ohno
  • Publication number: 20100018178
    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: Application
    Filed: May 18, 2007
    Publication date: January 28, 2010
    Applicant: Oerilikon Textile GmbH & Co. KG
    Inventors: Heinz Fink, Georg Tetzlaff, Sergei Singer
  • Publication number: 20080289367
    Abstract: A strand forming and chopping apparatus includes a bushing for forming a continuous strand, a size applicator for applying a size to the strand, a chopping device for chopping the strand into individual segments and a thread-up apparatus for directing the strand into the chopping device. The thread-up apparatus includes a cot incorporating a cot shoe and a strand guide displaceable between a rest position and a thread-up position where the strand guide holds the strand in a feed position from which the strand is engaged by the cot shoe and delivered to the chopping device.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Inventors: Michael A. Strait, Michael B. Fazio
  • Patent number: 7370464
    Abstract: A method for feeding a yarn to a textile machine for its processing and preparation for subsequent use, such as an interlacing, texturizing-interlacing or doubling machine, the yarn including at least two threads (3, 4) which are bound together, the first thread (4) and second thread (3) unwinding from a corresponding bobbin, the first (4) of said threads (3, 4) being an elastomeric thread. This latter is unwound from the relative bobbin (6) by withdrawal under free tension, said elastomeric thread (4) then being subjected to tension regulation in order to feed it at constant tension to the next stage, in which it is bound to the other thread.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: May 13, 2008
    Inventor: Tiziano Barea
  • Publication number: 20080044598
    Abstract: A yarn for forming filiform formations of a synthetic-grass covering reproducing the grassy sward of natural turf comprises filiform segments set alongside one another and connected together by thin breakable connection portions, in which the filiform segments have thickened end parts. Preferably, the yarn is obtained by longitudinal stretching, starting from a length constituted by a strip comprising multiple filiform segments set alongside one another and connected together by thin connection portions.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 21, 2008
    Applicant: MONDO S.P.A.
    Inventor: Fernando Stroppiana
  • Patent number: 6948303
    Abstract: A process is disclosed for a spinning arrangement for dealing with the correction of an end break. During operation, sliver-like fiber material fed to the spinning arrangement is opened to single fibers by means of an opening roller. The single fibers are then transferred in the form of a fiber veil to a suctioned collecting surface, which is driven in the direction of motion of the single fibers. During the transport of the fibers by means of the collecting surface, the fiber veil is condensed to a narrow fiber strand and the condensed fiber strand is spun to a yarn downstream of a nipping line by means of a twisting nozzle. When an end-break occurs, the material feed is interrupted and the fiber strand is suctioned in the area of the nipping line until the collecting surface is free from single fibers. A piecing operation subsequently takes place.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: September 27, 2005
    Assignee: Maschinenfabrik Rieter AG
    Inventor: Fritz Stahlecker
  • Patent number: 6840032
    Abstract: A yarn texturing machine for processing a plurality of synthetic yarns to form a composite yarn, and which comprises a plurality of processing units and a takeup unit. The processing units include at least two yarn feed units, which each withdraw a yarn from a feed yarn package. Also, at least one of the yarn feed units is mounted for movement on the machine frame in such a manner that it permits selecting different yarn feed positions by adjusting the yarn feed unit on the machine frame.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: January 11, 2005
    Assignee: Saurer GmbH & Co. KG
    Inventor: Dieter Zenker
  • Publication number: 20030029154
    Abstract: A method and device for restarting a spinning operation at work stations (2) of an open-end spinning machine (1) after replacement of a cheese (8) with an empty tube by a traveling service unit (16) comprising an auxiliary yarn supply device (21). Each work station comprises a yarn spinning device (3) and a cheese winding device (4) with a creel (9). The auxiliary yarn supply device (21) delivers a starting portion of an auxiliary yarn (24) to a suction nozzle (14), which transfers the auxiliary yarn (24) to a spinning start member (20), after which the suction nozzle (14) pivots to re-take the auxiliary yarn (24) between the supply device (21) and the spinning start member (20) and removes the auxiliary yarn (24) after restarting the spinning operation, whereupon the yarn (7) is brought to the creel (9) of the work station (2).
    Type: Application
    Filed: August 9, 2002
    Publication date: February 13, 2003
    Applicant: W. Schlafhorst AG & Co.
    Inventor: Paul Straaten
  • Patent number: 6511013
    Abstract: A device for starting a work station (2) of a cheese-producing textile machine, in particular after a batch change, wherein the work station (2) has a creel (18) for rotatably holding a bobbin tube (34), a splicing device (13) for connecting yarn ends, and manipulating means (12, 24) for inserting the yarn ends into the splicing device (13). A yarn (28) connected with a feed bobbin (9) is placed into the splicing device (13) by means of a gripper tube (24). The winding station has a device (30) for cutting the yarn (28), and a device (26) for receiving the cut yarn (28). A special suction tube (1) makes possible the transfer of the cut yarn (28) to a second clamping and cutting device (23) arranged in the area of the creel (18).
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: January 28, 2003
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Michael Reimann, Herbert Wellage
  • Patent number: 6494029
    Abstract: A yarn texturing machine for texturing a plurality of thermoplastic yarns, each in a processing station. The yarns are guided and advanced in each processing station by a plurality of feed systems. One of the feed systems comprises a driven feed roll which is partially looped by the advancing yarn, and a guide member mounted for movement relative to the feed roll for movement between a threading position wherein the yarn is separated from the feed roll and an operating position wherein the yarn engages the feed roll.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: December 17, 2002
    Assignee: Barmag AG
    Inventors: Klemens Jaschke, Andreas Schulz, Dietrich Berges
  • Patent number: 6195974
    Abstract: The instant invention relates to a process and to a device for automatic introduction of a fiber sliver into a textile machine equipped with a feed mechanism. The end of the fiber sliver is brought into a defined receiving position in which it is introduced into the feed mechanism. A predetermined length of the end of the fiber sliver is seized. The sliver is then shortened to a second predetermined length and is then introduced into the feed mechanism.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: March 6, 2001
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Dietmar Greis, Robert Tuschl
  • Patent number: 6109014
    Abstract: A method and a device for initiating the rewinding process after a yarn break in single stage pot spinning. In the process, a yarn detaching device (14) is introduced into a spinning centrifuge (3) rotating a high rpm, and places a cutting edge (16, 48) against the conically wound portion (32) of a spinning cake (15) deposited on the inner wall (26) of the spinning centrifuge (3). The yarn detaching device (14) has a yarn guide device, whose yarn guide contour (17, 43) covers the cutting edge (16, 48) of the yarn detaching device (14) such that in the course of the initiation of the rewinding process lower winding layers of the conically wound portion (32) are lifted on the rewinding tube (9) and in this way dependably prevents the winding of yarn around the yarn detaching device (14) during the rewinding process.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: August 29, 2000
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Karl Koltze, Peter Voidel, Bernhard Schwabe
  • Patent number: 6029435
    Abstract: To provide a threading apparatus that can thread yarn by feeding compressed air when the yearn is fed from a large diameter portion of a spindle member to a small diameter portion of the spindle member preceding the large diameter one. A spindle member is divided and a pipe including of a filter member is installed in the middle of the spindle, so that when compressed air is injected from the rear end of the spindle member having a large diameter toward its tip having a small diameter and preceding the rear end, a suction flow that sucks external air at the rear end is generated while excessive air is discharged to the exterior through the filter member, thereby maintaining a yarn feeding air flow in the center of the spindle member. Thus, the present invention can provide a threading apparatus that can feed compressed air to thread yarn from the rear end having a large diameter toward the preceding small diameter portion.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: February 29, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Akira Okamoto
  • Patent number: 5996182
    Abstract: The instant invention relates to a process and to a device for automatic introduction of a fiber sliver into a textile machine equipped with a feed mechanism. The end of the fiber sliver is brought into a defined receiving position in which it is introduced into the feed mechanism. A predetermined length of the end of the fiber sliver is seized. The sliver is then shortened to a second predetermined length and is then introduced into the feed mechanism.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: December 7, 1999
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Dietmar Greis, Robert Tuschl
  • Patent number: 5953792
    Abstract: A guide apparatus (1) for the fiber band of a textile machine which processes fibers, is situated between a pair of delivery rolls and a pair of calender rolls. The guide apparatus (1) exhibits a nozzle assembly (2, 3) with respective guide passage axes (6, 15) which form a guide path, and which nozzle sections (2, 3) are pivotally connected at their facing contacting surfaces (9, 11). The guide passage axes (6, 15) of the nozzle sections (2, 3) are angularly offset to one another, whereby at least one nozzle section (2) is pivotable from a start-up position into an operating position about a designed pivoting axis at right angles to the guide passage axes (6, 15). In the connective position, the contacting surfaces of the nozzle sections (2, 3) lie form fit and sealingly tight against one another, and in the operational position the nozzle sections (2, 3) form at least an aperture (S), preferably in the area of the contact surfaces (9, 11).
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: September 21, 1999
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Michael Maria Strobel, Wolfgang Gohler
  • Patent number: 5924272
    Abstract: A yarn false twist texturing machine having a vertically adjustable device for threading and guiding the advancing yarn at a location between the heater and the cooling plate of the machine. The threading and guiding device comprises a tubular casing having a rodless magnetic piston mounted for sliding movement therein, and a magnetic sliding element and a yarn guide mounted for sliding movement on the outside of the tubular casing. The polarity of the magnetic sliding element is opposite that of the rodless magnetic piston so that the magnetic sliding element follows the movement of the magnetic piston, and the magnetic piston is moved by compressed air delivered into either one or both ends of the tubular casing.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 20, 1999
    Assignee: Barmag AG
    Inventors: Klemens Jaschke, Dietrich Berges
  • 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: 5802831
    Abstract: On a piecing method of a spinning machine which, after cutting a sliver between normally rotating draft rollers and stationary draft rollers, inserts a leading yarn into the spindle of a twist device and carries out piecing by the restarting of the draft rollers, restarting of the twist device and running of the leading yarn, approximately all the fibers comprising the tapered tip of the cut sliver form the joint part by being entangled in the leading yarn. As almost all of the fibers comprising the tapered tip of the cut sliver contribute to the joint part, the success rate of piecing is increased and a stronger joint part may be formed.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: September 8, 1998
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yuji Imamura
  • Patent number: 5802834
    Abstract: In a method for threading yarns of two supply bobbins positioned coaxially one atop the other in a two-for-one twisting spindle through at two-part hollow spindle axle and a yarn guide channel of a yarn storage disk with a compressed-air operated injection threading device, a first supply bobbin is inserted into a two-for-one twisting spindle. A free yarn end of a second supply bobbin is threaded from above through a yarn guide tube of the second supply bobbin. The free yarn end of the second supply bobbin and the free yarn end of the first supply bobbin are combined and guided into an inlet of a yarn guide tube of the first supply bobbin. The compressed-air operated threading device is actuated and the second supply bobbin is then inserted into the two-for-one twisting spindle on top of the first supply bobbin.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: September 8, 1998
    Assignee: Palitex Project - Company GmbH
    Inventors: Jurgen Kallmann, Helmut Heiser, Jakob Nilges, Manfred Bermges
  • Patent number: 5794426
    Abstract: A lever (30) is pivotably mounted about ax axis Z on a carrier journal (24) which is pivotable about an axis X and with which electromagnets (46, 48) cooperate. The lever carries a thread-receiving member (20) and is under the effect of a tension spring (42). When the thread is intercepted by the thread-receiving member during the forward rotation of the cop, there follows a deflection of the thread-receiving member, which takes place with the tension spring being tensioned at the same time and which is caused by the thread, on a path approximate to the movement of the traveller on the ring. The tensioned tension spring pivots the thread-receiving member during the paying-out of thread which occurs as a result of the subsequent reverse rotation of the cop. As a result of the intermediate blocking about one of the axes, the thread-receiving member moves on a path lying approximately in a tangential plane relative to the ring.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: August 18, 1998
    Assignee: Bracker AG
    Inventor: Andreas Neff
  • Patent number: 5743077
    Abstract: A method is provided for manufacturing a new core wrap yarn which is strip resistant to the degree that it is able to be passed through a knitting needle at an entrance-exit angle of about 10.degree., at a tension of 100 grams and a speed of 100 meters per minute, without any apparent stripping or fuzz generation, wherein the method allows for convenient piecing-up operations.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: April 28, 1998
    Assignee: The United States of America as represented by the Department of Agriculture
    Inventors: A. Paul S. Sawhney, Craig L. Folk
  • Patent number: 5704204
    Abstract: This invention is related to a yarn piecing apparatus of a spinning machine arranged with a holding member (12) that holds the parent yarn (Y') which is inserted in the hollow spindle (6) of the spindle member (5) which is seperated from the nozzle member (2), at a predetermined tension so that it does not rotate due to the rotating air current from the nozzle member. As the parent yarn (Y') inserted in the hollow spindle (6) of the spindle member (5) which is seperated from the nozzle member (2) is held by the holding member, there is no rotation of the parent yarn (Y') by the rotating air current and consequently, fibers can be reliably attached to the parent yarn (Y') and the success rate of yarn piecing can be increased.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: January 6, 1998
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Hiroshi Mima, Yuji Imamura
  • Patent number: 5701729
    Abstract: A system for forming elastomeric core/staple fiber wrap yarn using a spinning machine such as an air jet, roller jet or roller spinning machine. The system includes a package drive assembly, yarn motion and presence sensors, an improved drafting assembly and a yarn clearer delay cylinder to provide continuous formation of superior quality elastomeric core/wrap yarn.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: December 30, 1997
    Assignee: Dixie Yarns, Inc.
    Inventors: John Joseph M. Rees, Leonard L. Hixon, Jr.
  • Patent number: 5689945
    Abstract: An apparatus and method for guiding a broken thread end in a yarn spinning machine into a position in readiness for piecing wherein the broken thread end is retrieved from a bobbin, routed through a yarn spinning mechanism, guided into the nip of a pair of rollers of an operating drafting apparatus without abrasion of or interference with the yarn end during the guiding of the yarn end and wherein the yarn end is deposited in a position in the drafting apparatus such that the yarn end is controllably withdrawn from the drafting apparatus through the spinning mechanism and pieced or joined with a new sliver as the yarn end is withdrawn.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: November 25, 1997
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Martin Tobler, Reto Debrunner, Martin Witschi
  • Patent number: 5682718
    Abstract: A yarn being spun in a spinning station of a spinning machine is drawn off with an apparatus which includes a pair of rollers for clamping the spun yarn in a gap between the rollers and transporting the spun yarn. The rollers include a draw-off roller being driven continuously in a draw-off direction at a given circumferential speed and a switchable feed roller for contacting the draw-off roller and for being driven through friction by the draw-off roller when contacting the draw-off roller. A method for drawing off the spun yarn includes positioning the yarn to be drawn off between the rollers while the feed roller is not contacting the draw-off roller. The feed roller is driven with a fluid in a circumferential direction and accelerated to a circumferential speed being at most the given circumferential speed. The feed roller is then placed in contact with the draw-off roller.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: November 4, 1997
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Andreas Bennewitz, Michael Stein
  • Patent number: 5673547
    Abstract: A spinning apparatus having a spinning section for forming yarn by applying a rotating air current of predetermined air pressure to a supplied fiber bundle and twisting the yarn while opening an end of the fiber bundle, and having a piecing section for reverse threading a spun yarn end into that spinning section. The spinning apparatus has a high pressure application member for applying high pressure air at a pressure higher than the aforementioned predetermined air pressure to such fiber bundle during the predetermined time after the spun yarn end is reverse threaded into the spinning section. The high pressure application member includes a first air circuit for supplying the aforementioned predetermined air pressure, a second air circuit that supplies air at a pressure higher than the aforementioned predetermined air pressure and a change-over member between the first and second air circuits.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: October 7, 1997
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Kenji Baba, Shinichi Satomi, Yuji Imamura
  • Patent number: 5630559
    Abstract: A device for searching for the yarn end on the conical windings of textile yarn cops increases the dependability of the detection of the position of the conical windings by providing a nozzle element in the yarn grasping mechanism for contacting the conical windings and whose position can be changed in relation to a sensor-controlled lifting mechanism. A sensor is arranged on the yarn grasping mechanism to detect a position change of the nozzle element relative to the lifting mechanism caused by contact of the nozzle element with the conical windings. The sensor is electrically connected with the drive of the lifting mechanism. The nozzle element, which advantageously is of a tubular bell-shaped configuration having a conical interior configuration, can be displaced coaxially to the longitudinal axis of the cop in an end of the yarn grasping mechanism which can be moved by the lifting mechanism. A marking, which can be easily recognized by the sensor, is placed on the displaceable nozzle element.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: May 20, 1997
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Rene Bucken, Helmut Kohlen, Guido Mirbach
  • Patent number: 5626011
    Abstract: In a method for joining a thread a spindle rotor with hollow spindle shaft is rotatably supported on a machine frame. A radially outwardly extending yarn guide channel is connected to the hollow spindle shaft. Two spinning devices with upwardly open spinning rotors are supported above the spindle rotor symmetrical to the central axis of the spindle rotor. A centering point is positioned on an extension of the central axis of the spindle rotor. A spun yarn is spun in each spinning device from dissolved fiber material and led upwardly away from the spinning rotors, reversed in their direction of movement by 180.degree., and introduced into the hollow spindle axle. The spun yarns form a yarn balloon between the yarn guide channel and the centering point, and twisted yarn is removed from the centering point. The dissolved fiber material is fed to the spinning devices through the yarn balloon.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: May 6, 1997
    Assignee: Palitex Project-Company GmbH
    Inventors: Ulrich Ballhausen, Guido Spix, Wilfried Rutten
  • 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: 5581988
    Abstract: A yarn brake has a tubular brake housing with an upper and a lower end. A lower brake ring is connected to the lower end of the brake housing. A brake ring carrier is positioned in the housing at a distance above the lower brake ring and has a central axis about which it is rotatable. The brake ring carrier is axially slidable within the brake housing. A spring is positioned in the brake housing between the upper end and the brake ring carrier for biasing the brake ring carrier in a downward direction. An upper brake ring is connected to the brake ring carrier so as to face the lower brake ring. A brake cartridge rests between the upper and the lower brake rings. An abutment is connected to the brake housing and extends radially into the brake housing. The brake ring carrier has a plurality of support shoulders distributed over the periphery of the brake ring whereby these support shoulders are axially spaced relative to one another.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: December 10, 1996
    Assignee: Palitex Project-Company GmbH
    Inventors: Heinz Fink, Johannes Frentzel-Beyme
  • Patent number: 5566539
    Abstract: Two parallel spun yarns (8, 8a) are wound onto a joint cross-wound bobbin (15) in the machine. If one of the yarns breaks (e.g. 8), the bobbin (15) and the supply of slivers (32, 32a) to the drafting arrangements (11, 11a) are stopped. An end of the unbroken yarn (8a) is taken up by a suction tube (69) and the broken end of the yarn (8) is wound up on the bobbin (15). The ends of the two yarns (8, 8a) are retrieved, reversely routed through the spinning units (12, 12a), the bobbin (15) and the draw-off device (14) are restarted and, the yarns (8, 8a) are deposited in and simultaneously withdrawn from the drafting arrangements (11, 11a) for joining therein with the end of restarted slivers (32, 32a). The sliver stoppers (30, 30a), however, are restarted at different times. In this manner, repair of a breakage in two yarns being jointly wound up on a common bobbin is achieved.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: October 22, 1996
    Inventors: Rolf Binder, Martin Witschi
  • Patent number: 5531063
    Abstract: A device for forming core/wrap yarn is provided in which a core strand and one or more wrap strands are passed from the nip of a pair of rollers to a stationary support surface which is outwardly, downwardly curved and which includes an open channel therein; wherein the core strand is passed through the channel from the nip and the wrap rovings are passed from the nip to converge upon and wrap around the core strand in the channel to form wrapped yarn; wherein the support surface may be moved from its operative position to a second position to allow a second mode of operation absent the support surface and wherein the support surface is tapered from the outer edges toward the channel.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: July 2, 1996
    Assignee: The United States of America as represented by the Secretary of the Department of Agriculture
    Inventors: A. Paul S. Sawhney, Craig L. Folk
  • 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: 5528893
    Abstract: A method for rethreading a yarn during false twist texturing of the yarn includes setting the temperature of a heater body outside a range having upper and lower limits so that if melted yarn adheres to the heater, the yarn vaporizes quickly if the temperature is above the upper limit or is easily removed by rethreading the yarn if the temperature is below the lower limit. The heater body has a total length between 0.8 and 1.2 m, the heater body and heating member divided into two pieces from upstream side to downstream side of the heat treating apparatus in ratio of length between 1:3 and 1: 1:5. The divided upstream heating member (12) is able to heat the upstream heater body (11) at a temperature higher than 370.degree. C., and the downstream heating member (22) is to heat the downstream heater body (21) at a temperature of between 200.degree. and 320.degree. C. or higher than 370.degree. C.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: June 25, 1996
    Assignees: Teijin Seiki Co. Ltd., Teijin Limited
    Inventors: Masaaki Yanagihara, Kenji Kawakami, Hiroyuki Nagai, Akira Miyamoto, Fumio Tanae, Shunzo Naito
  • Patent number: 5526634
    Abstract: A robot device for a piled-package type double twister, capable of detecting the condition of a pilot lamp for indicating yarn breakage, provided in a double-twisting unit which unwinds yarns from two feed packages placed one over the other, twist the yarns, winds the twisted yarn, of starting a feed package changing operation when the take-up package has a predetermined size, of continuing the feed package changing operation if a sensor for detecting the exhaustion of the feed packages detects yarn at least on one of the two feed packages, and of returning the feed packages to their positions and terminating the feed package changing operation if both the feed packages have yarns.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: June 18, 1996
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Hiroshi Mima, Tadashi Suzuki
  • Patent number: 5511373
    Abstract: A method and apparatus for piecing a sliver and at least one of a leading yarn and a bobbin yarn. A nozzle member and a spindle member having a hollow spindle are provided. A relative spacing is established between the nozzle member and the spindle member. At least one of a leading yarn and a bobbin yarn is inserted into the hollow spindle of the spindle member relatively spaced from the nozzle member. The relative spacing between the spindle member and the nozzle member is decreased, so that the spindle member and the nozzle member mutually form an air chamber. A compressed air flow is directed into the air chamber. Sliver is supplied to at least one of the leading yarn and the bobbin yarn, and the sliver and at least one of the leading yarn and the bobbin yarn are pieced together.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: April 30, 1996
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Susumu Banba
  • Patent number: 5487263
    Abstract: A device for adjusting capsule thread brakes in twisting machines having inside the twisting spindle a capsule thread brake has a brake ring disposed on a brake ring support which may be moved against a spring force. On the brake ring support a ring piston is arranged, which is guided in a ring cylinder connected to a compressed air supply line. A first toothed segment with downwardly directed teeth is arranged on the periphery of the brake ring support, and a second toothed segment with upwardly directed teeth is located opposite the first toothed segment. A support stop engages the slots formed between the teeth of the toothed segments during displacement of the brake ring support.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: January 30, 1996
    Assignee: Palitex Project-Company GmbH
    Inventors: Heinz Scheufeld, Ulrich Lossa, Heinz Stenmans
  • Patent number: 5475909
    Abstract: A yarn entangling device having a housing with an air pressure cushion in it for urging a piston normally outwardly of the housing. The piston has an air passage through it. Shifting the piston outwardly blocks the air passage. A blast nozzle is secured to the piston for being supplied with air through the piston. A baffle plate opposed to the blast nozzle defines a yarn channel. A holder supports the baffle plate for movement away from and into contact with the blast nozzle. With the holder moving the baffle plate toward the blast nozzle, the piston is shifted to open the air passage to the piston, and with the yarn channel opened with the baffle plate away from the blast nozzle, the piston is moved out of the housing by the air pressure cushion cutting off the air flow to the blast nozzle. A closing flap acts through a detent to secure the holder and baffle plate to close the yarn channel.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: December 19, 1995
    Assignee: Temco GmbH & Co. KG
    Inventors: Karl-Heinz Heil, Klaus Rippstein, Hans-Dieter Scherpf, Klaus Schmidt, Gunther Schmitt
  • Patent number: 5472128
    Abstract: A method and apparatus for sucking a free end of an optical fiber includes a sucking nozzle. The sucking nozzle is positioned downstream of a capstan wheel around which the optical fiber is wound. The opening of the sucking nozzle is positioned within a range of movement of a path line of the free end of the optical fiber. The path line of the end of the optical fiber moves in accordance with the speed of travel of the optical fiber. The sucking nozzle is positioned perpendicular to a plane defined by the path line of movement of the end of the optical fiber and transverse to an axis of the capstan. Thus, the sucking nozzle is positioned to reliably suck a free end of the optical fiber for a broad range of speeds of the optical fiber.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: December 5, 1995
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Nagayama, Toshifumi Hosoya
  • Patent number: 5448880
    Abstract: In the spinning unit of a centrifugal spinning machine the yarn conduct (4, 5) mounted between the revolving tube (2) and the yarn spreader (8) is designed so as to open on the side of the rewinding unit consisting of a winding drum (17) and a cartridge holder (18). The yarn conduct opens without displacement of the yarn (28) from its longitudinal axis. This allows to reduce the friction of the yarn (28) against the wall of the yarn conduct (4, 5) during the spinning process and to reduce the friction of the yarn (28) against the wall and the upper end of the spreader (8) during the rewinding process, as well as to bring the rewinding unit closer to the spinning unit.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: September 12, 1995
    Assignee: Nauchno-Proizvodstvennoe Obschestvo s Ogranichennoi Otvetstvennostju "Test"
    Inventors: Evgeny R. Savinov, July R. Zeldin
  • Patent number: 5431002
    Abstract: A false twist crimping machine has a secondary heater positioned downstream of the false twist zone, which comprises a slightly curved, upright, externally heated tube. The upright heating tube has a downstream end which connects with a horizontally directed transport tube which extends laterally across the service aisle of the machine adjacent the floor, and to a side frame which mounts the package take-up system. The inside diameter and length of the transport tube closely correspond to the inside diameter and length of the heating tube.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: July 11, 1995
    Assignee: Barmag AG
    Inventor: Heinz Treptow
  • Patent number: 5429575
    Abstract: In a cigarette filter rod manufacturing plant at least one tow bale (6; 108) is located in a position remote from the corresponding tow opening machine (2; 100) and a conveying system (10; 112) is provided for transporting the tow to the machine. In a preferred arrangement the conveying system comprises a pneumatic duct (10) in which the tow is conveyed with the assistance of air movers (12). Removing the tow bales from the vicinity of the machines, preferably to a common area, allows flexibility in laying out a production floor and provides easy access for replacement of the bales.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: July 4, 1995
    Assignee: Molins PLC
    Inventors: Richard R. Armour, Anthony R. Brown, Kenneth B. Carter, Peter A. Clarke, Kevin R. Fincham, Albert D. Seim, II
  • Patent number: 5417045
    Abstract: A traveller changer in which a first operating portion having a tensor for absorbing the slack of yarn passed through a traveller in a ring spinning frame, and a second operating portion having a yarn hooking lever, a traveller removing element and a traveller mounting elements are provided on a carrier unit, the first operating portion being disposed at a predetermined certain height relative to the carrier unit, and the second operating portion being disposed vertically movably in arrowed directions with respect to the carrier unit so that it can follow up the height of a ring rail.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: May 23, 1995
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Hiroo Otoshima
  • Patent number: 5390483
    Abstract: A traveler changing method and an apparatus for carrying out the same capable of automatic traveler changing operation for labor saving. The traveler changing method comprises steps of positioning a traveler at a predetermined position on a ring by turning a bobbin in the normal direction with a roller, drawing portions of a yarn extending through the traveler to the ring, removing the traveler positioned at the predetermined position by a traveler removing device, and putting a new traveler on the ring at a position on the ring where the yarn is contiguous with the ring.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: February 21, 1995
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Toshiaki Koga, Hiroo Otoshima, Itaru Yokota
  • Patent number: 5347805
    Abstract: A two-for-one twisting spindle with a compressed air operated threading device is provided. The thread is feed via a jet of compressed air through a thread feeding channel of a thread storage disk. At the outer opening of the thread feeding channel a first deflecting surface is provided which is attached to the underside of the turntable. The first deflecting surface is provided with a upwardly curved second deflecting surface which is essentially convex. These constructive measures at the outer opening of the thread feeding channel ensure that the jet of compressed air exiting from the outer opening of the thread feeding channel has a certain vertical width h and that the radius of curvature R of the second deflecting surface is such that the ratio of the radius of curvature to the width h corresponds to R/h.gtoreq.3. This ensures that the jet of compressed air is deflected in an upward direction essentially vertically with the aid of the so-called Coanda effect.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: September 20, 1994
    Assignee: Palitex Project-Company GmbH
    Inventors: Frank Butzke, Heinz Fink, Wolfgang Leupers
  • Patent number: 5343686
    Abstract: A process for introducing a fiber sliver into a fiber processing machine which has an openable sliver feeding device and a sliver introduction funnel and a sliver injector, comprising the following steps: opening the openable sliver feeding device, grasping the leading end of the sliver pneumatically into and through the sliver introduction funnel and into the opened feeding device and closing the sliver feeding device on the sliver. The invention also includes a device for carrying out the process.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: September 6, 1994
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Thorsten Buchner, Michael Ueding
  • Patent number: 5341977
    Abstract: A yarn drawing-in nozzle for drawing a yarn through an eye of a drawn-through member, comprising: a compression nozzle provided in an upstream side of the drawn-through member and having a block, the block being formed with a guide passage to which compressed air is supplied and into which the yarn with its distal end portion is inserted and through which the yarn is drawn through the eye of the drawn-through member with the aid of the compressed air; the guide passage of the compression nozzle being defined by an axially elongated groove having an upper open end and a bottom surface along a yarn drawing-in direction so that the compressed air is supplied through the bottom surface to the guide passage and that the distal end portion is drawn toward the bottom surface through the upper open end and that the yarn is drawn through the eye of the drawn-through member from a distal end of the yarn along the bottom surface.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: August 30, 1994
    Assignee: Teijin Seiki Company Limited
    Inventor: Yoshihide Nishimura
  • 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