Strand Type Patents (Class 57/305)
  • Publication number: 20110023273
    Abstract: A device for transporting fibre material between a drawing frame and a loop-forming machine is described. The device contains at least two transport units which are disposed in succession and have respectively one inlet- and outlet opening, said transport units being formed from respectively one twisting member (16a, 16b, 16c) and one transport pipe (17a, 17b, 17c) connected thereto, there being provided between an outlet end (28) of a preceding transport unit (16a, 17a) and the inlet end of a subsequent transport unit (16b, 17b) a gap (27a, 27b) which is intended for forming an air removal opening. According to the invention, a suction device (31a, 31b) is disposed in the region of this gap (27a, 27b) (FIG. 4).
    Type: Application
    Filed: August 1, 2008
    Publication date: February 3, 2011
    Inventors: Wolfgang Bauer, Axel Flad
  • Publication number: 20090120053
    Abstract: A suction air nozzle for a textile machine for storing a yarn length of a running yarn passing the nozzle opening. The nozzle has an elongate nozzle body, with a clear cross section having a narrower width in the region of its central longitudinal axis than in its tube-like edge regions. The nozzle further has an inlet opening, which has its largest width in the yarn running direction. The clear cross section of the nozzle body of the suction air nozzle increases from the inlet opening of the nozzle body in the axial direction to an end-side outlet opening.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 14, 2009
    Applicant: Oerlikon Textile GmbH & Co. KG
    Inventors: Maximilian Preutenborbeck, Wilhelm Oehrl, Detlef Schelter
  • Patent number: 6769240
    Abstract: A method and apparatus are provided for removing broken filaments from a continuous filament tow (60) traveling at a tow velocity between a source and a collector. The tow (60) is contacted with a rotatable, cylindrical roller (13), having an axis of rotation and an outer surface, located in the path of travel by the tow from the source to the collector. The axis of rotation is oriented generally perpendicular to the direction of travel of the tow (60). The roller (13) rotates in a direction counter to the direction of travel of the tow (60) to lift broken fibers from the tow. The lifted broken fibers are entrained in an airflow created by a tubular vacuum header (12) to remove the broken fibers from the tow.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 3, 2004
    Assignee: Fortafil Fibers, Inc.
    Inventors: Douglas S. Roy, James M. Clark
  • Patent number: 6345491
    Abstract: An apparatus for inserting twist into a moving strand, including a first body including an orifice extending therethrough for permitting passage of a moving yarn. An air channel extends therethrough and communicates with the orifice. The air channel communicates with the orifice at a tangentially-offset angle to the path of the yarn through the orifice to create a cyclonic air circulation pattern in the orifice to insert a predetermined direction of twist into the yarn as the yarn passes through the orifice. The first body is adapted for being inverted relative to, and placed in overlying registration with, a second like body whereby the air channel of the first body inserts one predetermined direction of twist into the yarn and the air channel of the second body inserts another predetermined direction of twist into the yarn.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: February 12, 2002
    Assignee: Belmont Textile Machinery Co., Inc.
    Inventors: Kevin E. Moran, Kurt Willy Niederer, Robert Edward Taylor, Ralph Samuel Jenkins, Jeffrey Todd Rhyne
  • Patent number: 6317645
    Abstract: A suction-air system of a textile machine, especially a rotor spinning machine, has at least one suction-air conduit, at least one spark sensor for detecting flying sparks within a measuring extent of the suction-air, the sensor including a measuring device with a sensing range at least partially overlapping the measuring extent, at least one electromagnetic wave receiver for generating an output signal when a spark enters the sensing range, and a driver and evaluation circuit for the measuring device. At least one source for generating electromagnetic waves is associated with the receiver and actuates a purposeful initiation of the spark sensor.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: November 13, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Gerd Jansen, Stephan Weuthen, Karl Kemps
  • Patent number: 5934060
    Abstract: For the optimization of the vacuum output of a suction air installation of a textile machine, the vacuum output is adjustably regulated by initially starting a batch with a predetermined vacuum for the vacuum demands under basic operating conditions and additional fluctuating working conditions, counting the errors which cannot be rectified and the attempts to rectify the errors caused by insufficient vacuum during a predetermined time period, subsequently changing the vacuum output of the suction unit during a subsequent time period, comparing the number of errors occurring under the changed vacuum conditions with the number which had occurred in the previous time period, and increasing the vacuum output when the number of errors exceeds a maximum predetermined amount of errors and decreasing the vacuum output when the number of errors is at or less than the maximum predetermined amount of errors.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 10, 1999
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Wilhelm Schmitz
  • Patent number: 5857317
    Abstract: This invention relates to a cotton fibers suction pipe of spinning machine, the side of the cotton fibers suction pipe having at least one or more guide discharge tubes connected to an air extracting pump, the circumference of the cotton fibers suction pipe having a plurality of suction holes, each suction hole being fitted with a bushing, the bushing being made of insulating materials, each bushing having a bush part and a covering flanges, the bush part can be pushed into the suction hole and the covering flange covering edge of the suction hole, thus cotton or yarn fibers can pass through smoothly the suction holes when they are inhaled into the cotton fibers suction holes, the bushings can prevent the cotton or yarn fibers from gathering or attaching on the suction holes because the bushings can't produce static electricity to suck cotton or yarn fibers, furthermore the covering flange can prevent cotton or yarn fibers from scraping the edge of the suction holes, operator only need to replace the worn-out
    Type: Grant
    Filed: April 26, 1997
    Date of Patent: January 12, 1999
    Inventor: Fu-San Lee
  • Patent number: 5732544
    Abstract: A yarn remnant removal system for flexible textile yarn tubes deflects the textile yarn tube inwardly in order to effectively reduce the tube circumference and loosen the yarn remnants wrapped thereon. The system provides for a tube receiver over which a textile yarn tube is placed and a deflection arm or blade which operates to engage and deflect the textile yarn tube inwardly while the tube rests on the tube receiver. Preferably, the tube receiver will include vacuum cups for providing a vacuum to engage a deflected portion of the textile yarn tube and to hold the textile yarn tube in an inwardly deflected state. The textile yarn tube remains deflected after the deflection arm is released. Multiple jets of air may be used to blow the yarn remnants from the textile yarn tube and the tube receiver may be rotated downwardly into a vertical position to further facilitate remnant removal.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: March 31, 1998
    Inventor: John H. Ferguson, Sr.
  • Patent number: 5723217
    Abstract: Novel fibers have been made from reactor grade isotactic poly-alpha-olefin wherein polypropylene is produced by single-site catalysis and has a melt flow rate of greater than zero to about 5,000, MWD in the range of about 1.0 to about 3.5.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: March 3, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Glenn Allan Stahl, James John McAlpin
  • Patent number: 5669215
    Abstract: An attending device of a textile machine, in particular of a rotor spinning machine, is provided having pneumatic pressure means intended to attend a working place and being disengageably connected to an overpressure source, and having underpressure pneumatic means disengageably connected to an underpressure source. The underpressure source and the overpressure source are made as a pneumatic generator situated on the attending device, and a closed filter of impurities mounted on the attending device is inserted before the air inlet into the pneumatic generator.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: September 23, 1997
    Assignee: Rieter Deutschland GmbH
    Inventors: Zdenek Spindler, Vojtech Novotny
  • Patent number: 5666798
    Abstract: A method and device of cleaning the rotor (6) of a rotor spinning machine are provided in which, after the opening of a spinning unit, there are sucked off from the rotor (6) fibres and impurities being released from the inner surface of the rotor by pressure air applied to said inner surface. The cleaning pressure air is led into the rotor (6) in at least two air streams producing in the rotor 6 a symmetrical streaming in one and the same direction and the supplied air, together with the released impurities, is sucked off through the center of the inlet aperture (63) of the rotor (6).
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: September 16, 1997
    Assignee: Rieter Deutschland GmbH
    Inventors: Vojtech Novotny, Zdenek Spindler
  • Patent number: 5579630
    Abstract: The improved device (1A, 1B) for removing the yarn reserve (15) wound on the spindles (13) of spinning or twisting machines (2), is of the type traversing on rails (3) positioned above and along the spinning or twisting machine (2) so as not to impede work carried out manually on the spindle frame. Moreover, so as to be particularly effective in removing yarn reserves (15) and dust, the brush (12) is circular in plan, it rotates about itself (12) and is housed partly within the suction port (11) such as to project by the amount sufficient for operation (FIG. 2).
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: December 3, 1996
    Assignee: Fratelli Marzoli & C. S.p.A.
    Inventor: Dante Inverardi
  • Patent number: 5452571
    Abstract: A winder-to-double twister connecting system, which comprises a yarn end picking device for picking out a yarn end from a package set on a tray, a package lifter for inserting a two-piled empty bobbin mounting adapter received from an overhead conveyor, into the tray on a circulating conveyor line, and for transferring a two-piled package mounting adapter to the overhead conveyor; a bobbin mover for pulling off, from an adapter, an empty bobbin coming on the circulating conveyor line; a package loader for taking up the package with the yarn end picked out from the tray and mounting the package to the adapter; and a bobbin stripper for removing remaining yarn from the empty bobbin received from the bobbin mover.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: September 26, 1995
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Yasuo Okuyama, Nobuo Sakamoto
  • Patent number: 5423170
    Abstract: A yarn winding machine having a suction apparatus for withdrawing the severed advancing yarns during the bobbin changing operation. The suction apparatus comprises a tubular duct which extends the length of the winding machine, and the duct mounts a yarn intake tube of relatively small diameter in front of each of the side by side winding stations of the machine. A yarn is adapted to be sucked into and through each of the yarn intake tubes by the relatively high speed air current flowing therethrough, and the yarn then advances into the tubular duct and to a waste container.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: June 13, 1995
    Assignee: Barmag Ag
    Inventors: Peter Dammann, Klaus Bartkowiak
  • Patent number: 5361572
    Abstract: A fluff cleaning truck moves along the textile machine being operated to efficiently and automatically remove fluff. The cleaning truck is loaded with cleaning members and travels along the frame of a textile machine and stops at a desired position to clean at all once desired portions of the textile machine being operated by unit of plural spindles.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: November 8, 1994
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Ikuzo Uematsu, Tomoaki Takahashi
  • Patent number: 5313775
    Abstract: In a textile spinning machine, apparatus for automatically joining a thread and cleaning the machine comprising a tube mechanism, a mechanism for routing a flow of air through the tube mechanism and controlling the rate of air flow through the tube mechanism; a mechanism for sequentially moving the tube mechanism to one or more selected thread joining positions relative to the machine including at least a position such that a thread end may be received and held within the tube mechanism via air suction flow through the tube mechanism; a mechanism for sequentially moving the tube mechanism to one or more selected thread waste positions relative to the machine such that the selected thread waste positions on the machine may be cleaned via controlled air flow through the tube mechanism; and wherein the mechanism for routing and controlling the air flow includes a mechanism for selectively adjusting the rate of air flow through the tube mechanism to a rate selected according to the selected position to which the
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: May 24, 1994
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Rolf Binder, Martin Witschi
  • Patent number: 5305592
    Abstract: A cleaning apparatus used in a spinning machine wherein a row of grabs having seats can be engaged over tubes in respective spinning stations to remove the tubes from and insert the tubes into the respective stations has at least one nozzle directable into the seats of the grabs and a system for supplying air under pressure to the nozzle and thereby forming at the nozzle a jet that blows lint and the like from the seat into which the nozzle is directed.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: April 26, 1994
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Gunter Schulz, Gerd Stolzner
  • Patent number: 5284010
    Abstract: A method for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the simultaneous cutting of the yarns of all of the stations at the end of the winding cycle, the replacing of the full packages with empty bobbins, the threadup of the empty bobbins, and the simultaneous commencement of the yarn traverse at all of the stations.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: February 8, 1994
    Assignee: Barmag AG
    Inventor: Peter Dammann
  • Patent number: 5279105
    Abstract: A chip collecting system for a bobbin replacing apparatus wherein roving chips and fleece are temporarily accommodated in a chip collecting chamber of the bobbin replacing apparatus through a suction pipe. Upon arrival of the bobbin replacing apparatus to a position that opposes a chip removing system, a communicating member is connected to the chip removing system to communicate the chamber to the outside, whereupon the roving chips in the chamber are removed by the chip removing system.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: January 18, 1994
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Isao Asai, Toshinori Hasegawa
  • Patent number: 5193332
    Abstract: A spinning or twisting device in which a yarn is to be back-fed into the bore of a pipe-shaped element subjected to negative pressure in order to repair a yarn break. This pipe-shaped element is made in form of a yarn draw-off pipe of an open-end spinning device or as part of a pneumatic twisting device.A presenting device is moved over and beyond the pipe-shaped element into a yarn inserting position. The end of the pipe-shaped element towards the moving path of the presenting device is provided with a nozzle which is provided, in relation to the bore, on its side towards the yarn inserting position of the presenting device with a yarn support, and on its side away from the yarn inserting position with a yarn insertion groove, oriented in the direction of movement of the presenting device. The bottom of the yarn insertion groove is at a greater distance from the moving path of the presenting device than the yarn support.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: March 16, 1993
    Inventors: Albert Kriegler, Rudolf Becker, Rupert Karl, Johann Halbritter
  • Patent number: 5179830
    Abstract: An apparatus for cleaning metal dust particles from a stranded cable made of metallic wires. The apparatus comprises a cleaning cylinder located downstream of a stranding die through which the stranded cable passes. Pressurized air is injected into the cleaning cylinder and impinges on the cable to entrain metal dust on the cable. A vacuum source connected to the cleaning cylinder withdraws air and entrained dust from the cleaning cylinder at a volumetric flow rate greater than the volumetric flow rate of pressurized air into the cleaning cylinder so as to generate a net inflow of air to the cylinder and prevent the egress of dust particles from the cylinder.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: January 19, 1993
    Assignee: Southwire Company
    Inventor: Steven M. Donath
  • Patent number: 5157909
    Abstract: A suction and cooling system for a spinning frame having a plurality of spinning units arranged along a frame. The suction and cooling system includes a first collecting channel and an independent second collecting channel and exhaust means coupled to the first collecting channel and exhaust means coupled to the second collecting channel. The first exhaust means draw a first air stream into the first collecting channel from primarily the area around the drafting system of the spinning units. The first air stream comprises primarily reusable fibers and a filter may be provided for filtering out the reusable fibers. The second exhaust means draws an independent second air stream from primarily the area around the thread guiding device of the spinning units and from around the spindle drive means, thereby serving the dual function of collecting waste fly and cooling the spindle drive means. A second filter device may be provided in the second collecting channel for removing generally waste fiber fly material.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: October 27, 1992
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Horst Wolf, Andre Lattion
  • Patent number: 5119622
    Abstract: In the case of a spinning machine having a plurality of drafting units arranged next to one another which each comprise a stripping device, a cleaning device for the stripping devices is provided which can be moved along the spinning machine. The cleaning device, in each case, moves the stripping devices from an operating position into a cleaning position, in which the cleaning of the stripping device is carried out.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: June 9, 1992
    Assignee: Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5109662
    Abstract: In yarn processing stations, in which two yarns are withdrawn from feed yarn packages inserted on a package adapter, the problem arises that a residual yarn wind is left on the tube of a feed yarn package. To remove this residual yarn wind, the maintenance and servicing device of the present invention is provided witha rotatable, upward and downward movable gripper for the removal of the package adapter from the yarn processing station, at least one rotatably supported mandrel to receive the package adapter, a rotatably supported, upward and downward movable cutting device for severing a residual yarn wind left on a feed yarn tube, and a rotatably supported suction device for the removal of the cut residual yarn, so as to be able to perform, according to the method of the present invention, the cleaning of feed yarn tubes still carrying yarn remnants directly after their removal from the yarn processing station.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: May 5, 1992
    Assignee: Palitex Project Company GmbH
    Inventor: Siegfried Inger
  • Patent number: 5107668
    Abstract: A method and apparatus is disclosed for the doffing of a yarn winding machine which is composed of several side-by-side winding stations, and wherein identical packages having the same build and yarn length are produced on the several stations. The doffing procedure includes the simultaneous cutting of the yarns of all of the stations at the end of the winding cycle, the replacing of the full packages with empty bobbins, the threadup of the empty bobbins, and the simultaneous commencement of the yarn traverse at all of the stations.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: April 28, 1992
    Assignee: Barmag AG
    Inventor: Peter Dammann
  • Patent number: 5070688
    Abstract: A cleaning device for cleaning a nozzle in a spinning apparatus in which the nozzle unit is supported movably and a suction pipe for sucking yarn waste is oscillatingly supported so that a suction opening of the suction pipe can be moved to a gap between the draft part and the nozzle unit moved away from the draft part.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: December 10, 1991
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Hisaaki Kato, Takumi Yamamoto, Hiroshi Yamaguchi, Hideshi Mori
  • Patent number: 4967946
    Abstract: Known pneumatic pipe conveyor installations for fibres, particularly for textile fibre strands, comprise a conveyor pipe and a selectively operable feeder apparatus for feeding the fibres to the inlet opening of the conveyor pipe.For permitting the feeder apparatus to be automatically stopped in response to the formation of a fibre congestion adjacent the inlet opening of the conveyor pipe, there is provided a pressure-receiving surface (6) at least partially surrounding the inlet opening (5) of the conveyor pipe (2) and operatively connected to a switch (7) adapted to generate a stop signal for stopping operation of the feeder apparatus (3) in response to the pressure acting on the pressure-receiving surface (6) exceeding a predetermined value.The pneumatic pipe conveyor installation is useful for conveying fibre strands or slubbings in the textile industry.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: November 6, 1990
    Assignee: Hollingsworth GmbH
    Inventors: Hermann Gasser, Karl Curiger, Hans Rutz
  • Patent number: 4942730
    Abstract: A textile yarn ring spinning or twisting apparatus of the type comprising a spindle for carrying a yarn support tube, the spindle being rotatable about its axis to enable yarn to be wound on the tube to form a yarn package, a yarn reserve winding member around which yarn may be wound prior to the doffing of a wound package from the spindle, and a yarn severing device so positioned adjacent the axis of the spindle and between the reserve winding member and an adjacent portion of the spindle on which the end of the package is located as to engage yarn extending from the reserve winding member to the wound package on the spindle. In accordance with the invention the drive mechanism enables relative rotation between the reserve winding member and the severing device so that the length of yarn extending from the package on the spindle to the reserve winding member may be severed.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: July 24, 1990
    Assignee: James Mackie & Sons Limited
    Inventor: William A. Morrison
  • Patent number: 4936086
    Abstract: Apparatus for use with a traveling cleaner for textile machines, particularly ring spinners, operable to strip yarn ends from the whirls of the spindles for the bobbins of the ring spinner apparatus. A whirl cleaner blade is pivoted to the frame of the ring spinner adjacent each spindle so that its free blade end may be displaced into engagement with the whirl of the spindle by a jet of compressed air impinged against the blade. The compressed air is supplied by a nozzle suspended from the carriage of the pneumatic cleaner to impinge against the blade. The compressed air is fed from a central junction box under the track for the carriage through the energy chain which houses the power supply cables for the carriage. From the carriage, the compressed air is piped to the nozzle positioned at the level of the spindle whirls.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: June 26, 1990
    Assignee: Flakt, Inc.
    Inventors: Jerry T. Carter, Edgar A. Pace
  • Patent number: 4899532
    Abstract: A residual roving clearing apparatus for clearing a residual roving remaining on a roving bobbin. The residual roving clearing apparatus comprises a bobbin holding device for rotatably holding a roving bobbin, a cutting device for cutting layers of coils of residual roving remaining on the roving bobbin held by the bobbin holding device, and a rotary brush device for clearing the residual roving from the roving bobbin. The residual roving clearing apparatus is capable of efficiently clearing the residual roving from the roving bobbin by cutting layers of coils of the residual roving along a cutting line parallel to the axis of the roving bobbin held by the bobbin holding device, and stripping off the cut layers of coils of the residual roving from the roving bobbin by the rotary brush of the rotary brush device.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: February 13, 1990
    Assignee: Murao Boki Kabushiki Kaisha
    Inventor: Hiroaki Sanno
  • Patent number: 4878344
    Abstract: In a yarn splicing operation on a ring spinning machine wherein a broken end of yarn is drawn into a suction tube in position for splicing, the suction is reduced after the yarn is in position to avoid damage or destruction of the yarn as it is being held by suction. The reduction in suction is accomplished by the opening of a bypass, the restriction of the tube or a reduction in the speed in the motor of the suction pump.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: November 7, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Wolfgang Igel
  • Patent number: 4858421
    Abstract: In an arrangement for pneumatic false-twist spinning, an air nozzle, which follows the pair of delivery rollers of the drafting unit, can be moved out of its operating position after a yarn breakage. At the same time, a suction tube, which is assigned to this pair of delivery rollers, is brought into the area of the clamping gap of the pair of delivery rollers. In the normal operation, this suction tube is in a cleaning position, in which it is aimed at the circumference of a roller of the pair of delivery rollers.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: August 22, 1989
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 4845938
    Abstract: An arrangement for mounting a suction tube on a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube has a suction end and an opposite end connected through a flexible sealing sleeve to a collection chamber, with the sleeve permitting the suction tube to pivot between different positions. A mounting rod is secured to and extends between the stanchions of the machine frame intermediate the collection chamber and the outlet rollers, and a support arrangement is mounted on the rod and includes a retaining mechanism for positioning the suction tube and releasably retaining it in an operative position in which the suction end is proximal the outlet rollers and an inoperative position in which the suction end is spaced from the outlet rollers. In one embodiment the suction tube is pivotally mounted on one arm of the support and releasably retained in a slot in another arm of the support.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: July 11, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Ernst Halder, Friedrich Dinkelmann, Robert Buder
  • Patent number: 4825634
    Abstract: A suction tube for a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube is connected to a collection chamber through a flexible sealing sleeve that permits the suction tube to pivot between its operative and inoperative positions. The suction tube comprises a suction end disposed under the bottom roller of the outlet rollers that has a body portion formed with a suction opening therein, an opposite end connected to the flexible sealing sleeve, and a pair of side walls projecting upwardly from the suction end body portion toward the bottom roller and longitudinally beyond the suction opening on opposite sides of the yarn for confining the suction substantially to the bottom roller and the yarn path.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: May 2, 1989
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Ernst Halder, Friedrich Dinkelmann, Robert Buder, Uwe Fuchs, Dieter Horak, Hans-Heinz Schafer
  • Patent number: 4773208
    Abstract: A process for operation of an approximately horizontal suction duct used for removal of broken fragments of thread or roving from a spinning machine and a suction apparatus for performing that process. In the process of my invention the suction capacity of the suction duct is made adjustable for joint adjustment of the suction at all of the suction intakes connected to it. Thus to reduce energy consumption this suction capacity can be set to a considerably lower value during normal operation than during doffing or batch changing where it is desirable to use the maximum rated suction capacity. The adjusting means for changing the suction capacity of the suction duct comprises advantageously a throttling means such as an automatically controllable plate mounted downstream from the suction intakes of the suction duct or a selector switch for providing different voltages to the winding terminals of an electric motor of an air blower mechanism to directly change the suction capacity.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: September 27, 1988
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Horst Wolf
  • Patent number: 4729216
    Abstract: A service device in a ring spinning machine is moved after a yarn break to the appropriate spinning position to separate the broken yarn end from the winding by generating an air blast that acts on the yarn end. If the winding build-up is in a stage in which the initial winding cone has not yet been completed, the air blast is set at a high value so that a relatively strong separating force acts on the broken yarn end. If, on the other hand, the build-up of the winding cone has been completed, the separating force acting on the yarn end is less. The stage of the winding build-up is determined with the aid of a switch, which is connected to a stop member that contacts and rests on the ring rail of the spinning position. The setting of the two air blasts is performed by a switchable trottle.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: March 8, 1988
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Joachim Rohner, Helmut Nickolay
  • Patent number: 4724665
    Abstract: A method of piecing yarn in the operation of an open end rotor spinning machine that includes applying the suction that picks up the yarn end from the bobbin package for an extended predetermined length of time longer than the optimal minimum length for a normal piecing operation, with the extended suction being of a time sufficient to remove an estimated extended length of defective yarn, either determined by sensing the absence of sliver or after two or three sequential unsuccessful piecing attempts.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: February 16, 1988
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Raasch, Heinzbert Reiners
  • Patent number: 4689947
    Abstract: A method for reducing broken fibers on the surface of a carbon fiber bundle involves passing the yarn past a suction nozzle having an extended trailing edge which impacts the broken fibers as they pass the slot breaking off the fibers. The broken fibers are transported to a disposal station. The differential in elevation of the leading and trailing edges of the intake slot of the nozzle provide an exposed impacting edge.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: September 1, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Steven J. Winckler
  • Patent number: 4673138
    Abstract: An apparatus for preventing scatter of fly in a winder having a plurality of winding units where a yarn is unwound from a yarn feeding bobbin and is taken-up on a take-up package. A first cover member for covering the yarn feeding bobbin unwound at a winding unit and a second cover member for covering a tenser portion are provided with each winding unit.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: June 16, 1987
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yoshiyuki Ichiba
  • Patent number: 4671054
    Abstract: A mechanism for pneumatically purging undesirable fiber fluff and dust from a spindle assembly of a two-for-one twister textile thread processing machine created during thread processing and particularly in the area of a rotating thread balloon and being characterized by utilizing air flow created by operation of the spindle assembly in processing thread without disturbing the rotating thread balloon is provided. The purging mechanism includes a housing jacket axially mounted on one end of a balloon limitor device and having a generally curved inner wall spaced from the axis of the spindle assembly rotor mechanism and the carrier mechanism a greater distance than the inner wall of the balloon limitor and a lateral opening on one side thereof, and a duct connected to the lateral opening and adapted to lead to a collecting container.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: June 9, 1987
    Assignee: Palitex Project-Company GmbH
    Inventors: Reinhard Grundmann, Carl Kramer
  • Patent number: 4669259
    Abstract: The spinning machine comprises a drafting frame for drawing sliver and at least one fiber suction station connected to a vacuum source associated with this drafting frame. To save energy each fiber suction station is provided with a sensing means for detection of broken fiber or roving and throttling means for throttling the suction. The throttling means is adjustable to a throttled position in the air stream which considerably reduces the air flowing into the fiber suction duct. This throttling means is also automatically disengagable into a position resulting in a considerably increased air flow rate following detection of broken fiber or roving by the sensing means.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: June 2, 1987
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Joachim Rohner
  • Patent number: 4667864
    Abstract: A doffing gun for aspirating yarn includes a vacuum chamber tube threadably connected to an ejector handle body formed with a first bore axially aligned with the vacuum chamber and a second bore substantially perpendicular to the first bore. The first bore includes a mixing chamber into which air under pressure is admitted through the second bore and a third bore which extends between the first and second bores. The third bore is oriented so that it enters the mixing chamber at an angle of about 15.degree. to 30.degree. from the longitudinal axis of the vacuum chamber tube and axially aligned first bore. Attached to the outlet or exhaust end of the ejector handle is a noise reduction means which, in turn, is connected to a diffusing nozzle and collection bag. The collection bag comprises upper and lower sections of tightly woven and open mesh materials, respectively.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: May 26, 1987
    Assignee: Burlington Industries, Inc.
    Inventor: Paul D. Kiteck
  • Patent number: 4662167
    Abstract: A servicing device is provided for a spinning machine which includes a plurality of spinning stations, which servicing device is moveable along the spinning stations and adjustably disposed adjacent to each. The servicing device is outfitted with at least one fly catching needle connected to a rotational drive unit. The fly catching needle is arranged at a holder which is moveably mounted and provided with a driving unit so that it is adjustable along one or several predetermined paths to predetermined parts of the spinning unit and especially plural positions of a drafting unit or frame.
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: May 5, 1987
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 4628686
    Abstract: A doffing method in a spinning frame or the like comprises steps of holding a spinning bobbin after completion of winding with a holding member, removing the spinning bobbin from a spindle without bunch winds, fitting the spinning bobbin onto a bobbin conveying medium having an air path, cutting the yarn and sucking air within the spinning bobbin through the air path of the bobbin conveying medium to attract an end of the yarn adjacent the spinning bobbin into the spinning bobbin under the guidance of the holding member.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: December 16, 1986
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Shoichi Tone, Hiroshi Uchida
  • Patent number: 4598539
    Abstract: For the piecing of a yarn of a spinning unit of an open-end friction spinning machine, it is provided that a yarn an brought into the wedge-shaped gap is pieced, while forming a yarn piecing, which, before a renewed winding-up of the yarn, is cut out and is replaced by a yarn connection connecting the new yarn with the yarn leading to the spool. The formation of the yarn piecing takes place at a production speed that is reduced as compared to the normal spinning operational speed, said production speed being brought to the operational value only after the making of the yarn connection. It is also provided that the yarn spun during the formation of the yarn connection is taken up by a yarn storage device, which is emptied more rapidly because of the fact that the wind-up speed as compared to the withdrawal speed has a larger speed difference than the operational wind-up speed has with respect to the operational withdrawal speed.
    Type: Grant
    Filed: October 23, 1984
    Date of Patent: July 8, 1986
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Patent number: 4590646
    Abstract: In order to remove broken threads and debris from textile drawing equipment having a drawing cylinder, a suction pipe connected to an air pressure sink is provided with a triangular suction opening at the drawing cylinder for removing the broken threads and debris. For substantially improved performance at essentially the same air throughput, the suction pipe, in continuation of its triangular suction opening, is provided with a triangular cross-section being congruent with the triangular suction opening and extending along a major portion of the length of the suction pipe, such as to the vicinity of its connection to the air pressure sink.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: May 27, 1986
    Assignee: Galipag
    Inventor: Hermann Gasser
  • Patent number: 4570433
    Abstract: A nozzle for the pneumatic release of a broken yarn end in a spinning or twisting frame has a plurality of mutually parallel closely spaced passages trained at an angle to the yarn package so that the individual jets in closely spaced relationship are collectively effective to liberate the broken yarn end and enable it to be captured by a suction hood.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: February 18, 1986
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Helmut Nickolay
  • Patent number: 4565062
    Abstract: A nozzle for liberating a broken yarn end from a yarn package in a spinning or twisting frame is either tiltable or has selectively actuatable orifices to alter the angle at which the jet or jets for dislodging the broken yarn end is trained to the yarn package. The change in the angle is effected during the course of package building and the liberated yarn end can be captured by a suction hood.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: January 21, 1986
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Helmut Nickolay
  • Patent number: 4541234
    Abstract: Method for starting the operation of a friction spinning machine, including friction surfaces movable in opposing directions for forming a spinning wedge, a device for supplying fiber to the spinning wedge, a thread withdrawal device, at least one suction device acting on the spinning wedge during the spinning operation, a suction tube disposed at an end of the machine opposite the thread withdrawal device, and a suction air source connectible to the suction device and to the suction tube, which includes:stopping the fiber supply and the motion of the friction surfaces;disconnecting the suction device from the suction source;supplying suction air from the suction source through the suction tube at the spinning wedge for inserting a thread into the spinning wedge;keeping the thread in a tensioned condition in vicinity of the spinning wedge;operating the suction device with a given suction power;moving the friction surfaces around the thread with a given speed to remove the twist of the thread at a given locati
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: September 17, 1985
    Assignee: W. Schlafhorst & Co.
    Inventors: Heinz-Georg Wassenhoven, Josef Derichs
  • Patent number: 4541235
    Abstract: A method of starting the operation of a friction spinning unit having friction surfaces displaceable in opposite directions and forming a spinning wedge, the spinning unit further having a fiber infeeding device, a thread take-up device for drawing a thread longitudinally through the spinning wedge, and at least one suction device acting upon the spinning wedge, at least one of the friction surfaces being formed by a sieve drum, the suction device having a suction nozzle acting upon the spinning wedge by sucking air through the wall of the sieve drum, by means of an automatic thread joining device, includes:(a) laying a thread into the spinning wedge;(b) initiating the infeed of spinning fibers into the spinning wedge;(c) connecting the friction surfaces with a thread-joining drive arrangement, and moving the friction surfaces in opposite directions with increasing speed;(d) continuously withdrawing the thread from the spinning wedge, and conducting it to a waste collector;(e) interrupting the travelling thre
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: September 17, 1985
    Assignee: W. Schlafhorst & Co.
    Inventor: Hans Raasch