Patents Assigned to W. Schlafhorst and Co.
  • Patent number: 5386684
    Abstract: A coordinating apparatus for insuring the proper positioning of the traveling service unit with a respective work station of a textile machine so that data such as, for example, information concerning the servicing requirements of the respective work station and operating instructions, can be communicated between the service unit and the work station.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: February 7, 1995
    Assignee: W. Schlafhorst & Co.
    Inventors: Karsten Simon, Norbert Coenen
  • Patent number: 5348221
    Abstract: A textile machine apparatus for handling tubes having remaining yarn thereon includes a branch path for supporting tube support members, which individually support tubes thereon, for travel to and from the discharge assembly of a textile winding machine. The tube handling apparatus also includes a sensor disposed along the discharge transport path of the tube support members from the winding stations of the textile winding machine for discriminating among tubes having no yarn thereon and tubes having remaining yarn thereon. A guide member is operatively connected to the discriminating sensor for guiding the tube support members supporting tubes having remaining yarn thereon onto the branch path for transport therealong to a tube stripping device, which strips the tubes of the remaining yarn. The stripped tubes are then returned to the discharge transport path at a location upstream of the discriminating sensor.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: September 20, 1994
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Ulrich Wirtz, Helmut Kohlen, Paul Surkamp, Helmuth Hensen
  • Patent number: 5323599
    Abstract: A process and apparatus for treating yarn formed on an open-end spinning machine of the type wherein the yarn is drawn from a rotor through a navel and through draw-off rolls is provided. The yarn is guided from the navel to the draw-off rolls in a path at least a portion of which is inclined with respect to the axis of the navel and a false twist is applied to the yarn during its travel in the inclined portion of the path between the navel and the draw-off rolls. The yarn is permitted to untwist between the false twist application and the draw-off rolls in response to the applied false twist. The untwisting of the yarn causes fiber ends on the surface of the yarn to project outwardly in a hairiness or fleeciness producing manner. The false twist applying element can include a member which produces a rotating air stream about the periphery of the traveling yarn.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: June 28, 1994
    Assignee: W. Schlafhorst & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 5258916
    Abstract: The present invention provides a method for selecting components of a rotor spinning device of a textile machine such that the operational characteristics of the components are optimally suited for the spinning of a yarn to be used in a predetermined fabric application. The method includes several prompting steps during which a user is prompted for information regarding the predetermined fabric application. In response to the information inputted by the user concerning the predetermined fabric application, the user is interrogated concerning the preferred characteristics of the predetermined fabric application. The method additionally includes prompting the user to provide information relating to the raw material of the yarn to be used in the predetermined fabric application and the yarn count of the yarn.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: November 2, 1993
    Assignee: W. Schlafhorst & Co.
    Inventors: Dieter Langheinrich, Karl Gosejacob
  • Patent number: 5190136
    Abstract: A tube transport assembly is provided for individually transporting tubes of the type onto which yarn is wound on a textile machine. The tube transport assembly includes magnetic components for guiding and transporting the tube support members along a transport path by magnetic interaction with ferromagnetic portions of the tube support members. The magnetic components can be configured as electromagnets or as permanent magnets. The transport path includes a junction at which the tube support members can be individually branched onto a branch path and a magnetic component is positioned adjacent the junction for selectively magnetically engaging the tube support members to guide the tube support members along to selected branch paths. A vertical transport component includes magnetically active carrier members mounted on an endless belt and is operable to magnetically engage and carry the tube support members vertically.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: March 2, 1993
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Rolf Mayer, Michael Lys, Helmut Kohlen, Gerhard Radziejewski
  • Patent number: 5170952
    Abstract: Control means are provided for an apparatus for cross-winding packages of textile yarn or the like. The control means includes means operable during at least a portion of the rotation of the package at the selected rotational speed for increasing the relative frequency of traverse of the yarn guide means with respect to the selected rotational speed to a ratio less than the ratio of the rotational speed to the relative frequency of traverse prior to rotation at the selected rotational speed. The control means can gradually increase the relative frequency during operation at the selected rotational speed so that the ratio of the rotational speed to the relative frequency of traverse of the yarn guide means gradually decreases from the ratio of the rotational speed to the relative frequency of traverse at the beginning of rotation at the selected rotational speed.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: December 15, 1992
    Assignee: W. Schlafhorst & Co.
    Inventors: Heinz Kamp, Peter Gerhards, Siegfried Bruns
  • Patent number: 5129592
    Abstract: A method and apparatus for transporting a plurality of packages from the winding stations of a textile machine to a location for further handling or processing is provided. A pair of movable arms movably mounted to a carriage releasably engage a package support means to move the package support means between a package receiving position in which it receives packages transferred thereto by the traveling service unit of the textile machine and a transport position in which the package support means is released to a conveyor belt assembly for transport to the location for further handling or processing. The carriage includes rollers which travel along rails mounted on a selectively extendable and retractable bracket. The bracket is vertically movably supported on a vertical post.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: July 14, 1992
    Assignee: W. Schlafhorst & Co.
    Inventor: Edmund Wey
  • 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: 5088266
    Abstract: To improve the quality of spun yarn, a fiber aligning apparatus is formed in the interior wall of the housing of a sliver feeding and opening device of an open-end spinning machine. The fiber aligning apparatus includes as plurality of aligning elements, which are integrally formed from the wall of the housing, for aligning the individual sliver fibers during their travel within the housing. The aligning elements are formed in a recess in the wall of the housing which extends concavely in the circumferential direction of the cylindrical housing wall. Each aligning element is in the form of an angled tooth projecting inwardly with respect to the housing and terminating in an apex, the tooth apices defining an arcuate extent of the cylindrical surface of the housing concentric with the opening roller of the sliver feeding and opening device.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: February 18, 1992
    Assignee: W. Schlafhorst & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 5078329
    Abstract: An automatic yarn winding apparatus includes plural aligned winding stations and a delivery conveyor extending along the winding stations for supplying thereto yarn packages comprising yarn tube support members carrying fully wound yarn tubes. The delivery conveyor is driven alternately in opposite directions. Package entrance conveyors supply yarn packages to the delivery conveyor at least two spaced locations therealong. Switchable mechanisms are provided for selectively forming and removing at least one package barrier along the delivery conveyor between the entrance locations for preventing package movement therebeyond. By provision of additional package entrance conveyors and package barrier mechanisms, the delivery conveyor can be effectively divided into multiple transport sections for respectively supplying differing groups of the winding stations with differing respective groups of yarn packages.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: January 7, 1992
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Rene Bucken
  • Patent number: 5056725
    Abstract: A yarn package handling assembly is provided for handling yarn packages transported on individual package support members on a textile winding machine. The yarn package handling assembly includes a yarn end disposing arrangement operable to dispose the yarn ends of yarn packages into preferred preliminary dispositions for handling at the winding stations of the machine. Another yarn end disposing arrangement is provided for more aggressively acting on yarn packages to dispose their yarn ends in a preferred preliminary disposition where the first arrangement was unsuccessful, handling yarn packages in a special manner to dispose their yarn ends in a preferred preliminary disposition and the yarn packages prepared by the more aggressive yarn end disposing arrangement are transported along a second transport path back to the path for feeding packages from the first-mentioned arrangement to the winding stations.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: October 15, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Ulrich Wirtz, Helmut Hensen, Helmut Kohlen, Paul Surkamp, Hans Grecksch, Dietmar Engelhardt
  • Patent number: 5056726
    Abstract: A yarn end loosening apparatus for a textile machine includes first and second chamber portions which are positionable to form a gas guide chamber for directing jet streams of gas against the yarn package therein to effect loosening of a yarn end. A movement device selectively moves the first chamber portion between the chamber 4 main position in which it forms a gas guide chamber with the second chamber portion, a clearance position in which it permits a tube support member which supports a yarn package to travel away from the winding station of the textile machine and a travel blocking position in which a following tube support member which supports a fresh yarn package is prevented from traveling beyond the unwinding location at which the yarn package is unwound. Another movement device is also provided for moving the second chamber portion to separate each tube support member from a subsequently following tube support member.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: October 15, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Dietmar Engelhardt
  • Patent number: 5044572
    Abstract: An apparatus for handling yarn during axial unwinding of the yarn from a yarn package at an unwinding device of a textile machine includes a device for restricting laterally outward displacement of the yarn. The restricting device is mounted to at least one of a pair of chamber portions which surround the yarn package during unwinding of yarn therefrom and preferably includes a vertically extending plate shaped to define a yarn receiving area for confining the path of the yarn being unwound. The plate guides the yarn from the inner wall of the chamber formed by the chamber portions into the yarn receiving area. According to another aspect of the invention, a device is provided for engaging a traveling yarn during unwinding of the yarn from a yarn package to eliminate loops, snarls and the like.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: September 3, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Dietmar Engelhardt
  • Patent number: 5035371
    Abstract: A tube stabilizing apparatus is provided for a textile machine of the type having a plurality of independently movable tube support members, an unwinding device for unwinding textile packages and various transporting assemblies for transporting tube support members to and from the unwinding device. The unwinding device is provided with a yarn end loosening apparatus having a pair of independently movable chamber portions, the pair of chamber portions forming a gas guide chamber for encircling a yarn package during loosening of the yarn end from the yarn package. The gas guide chamber is formed with a lateral opening. The tube stabilizing apparatus includes an arm member and a member for selectively moving the arm member through the lateral opening of the gas guide chamber into contact with the tube of a yarn package to thereby apply force against the tube in a lateral direction toward an opposing member. The arm member and the opposing member stabilize the tube to minimize lateral movement of the tube.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: July 30, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Dietmar Engelhardt
  • Patent number: 5033623
    Abstract: A memory chip for storing information relating to an individual textile package and a device for manipulating the package and a chip reading device to access the information stored on the memory chip are provided. The memory chip can be loaded with individual package information such as, for example, the time, date and machine location at which the package was produced and the information can preferably be extinguished from the memory chip for loading of the memory chip with individual information concerning another package. To this end, the memory chip is preferably removably secured to the textile material or the tube of the textile package for subsequent removal for reuse on another package. The manipulating device moves the package and the chip reading device relatively to one another so that the chip reading device enters a reception area of predetermined size and location relative to the memory chip in which it can read, extinguish or supplement the information stored on the memory chip.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: July 23, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Gregor Kathke
  • Patent number: 5029763
    Abstract: A package carrier member is positioned under a wound package by being pivoted at the end of a support arm that in turn is pivoted at the end of an arm of a package moving mechanism that includes a translational motion gear set so that upon rotation of the positioning arm the gear set will maintain the package in translational motion to a position closely above a package handling assembly at which the positioning mechanism pivots the carrier member to withdraw it from underneath the package. During this withdrawal a stop member is positioned against the package on the side opposite the direction of carrier member withdrawal to maintain the package in position against twisting, tilting or rotating as it is being released onto the package handling assembly.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: July 9, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Josef Bertrams, Wolfgang Loers
  • Patent number: 5024389
    Abstract: A tube support member conveying apparatus is provided for a textile machine which includes an unwinding device for unwinding packages of textile material such as yarn which is wound on tubes and a yarn end loosening assembly for loosening a yarn end on a yarn package to facilitate subsequent unwinding of the yarn therefrom. The tube of each yarn package is individually supported in a generally upright disposition on an independently movable tube support member. The tube support member conveying apparatus includes a conveying device for conveying the tube support members from a delivery assembly which delivers the tube support members for feeding to the unwinding device through an unwinding location at which the yarn packages are unwound by the unwinding device to a discharge assembly for transporting the tube support members to a further handling location. The conveying device supports each tube support member at the unwinding location in a predetermined disposition upstanding from the conveying device.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: June 18, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Hans Grecksch, Dietmar Engelhardt
  • Patent number: 5014922
    Abstract: Control means in an apparatus for cross-winding packages of textile yarn or the like is provided and includes means operable during at least a portion of the high speed or accelerating rotation for increasing the relative frequency of traverse of the traversing yarn guide means with respect to the rotational winding speed of the package from a frequency at which the ratio of the rotational winding speed to the relative frequency of traverse is greater than the ratio of the selected rotational winding speed and the related selected frequency of traverse. The control means can gradually increase the relative frequency during the high speed or accelerating rotation so that at least before the end of the high speed or accelerating rotation, the ratio of the rotational winding speed to the relative frequency of traverse of the yarn guide means is approximately the same as the ratio of the selected rotational winding speed and the related selected frequency.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: May 14, 1991
    Assignee: W. Schlafhorst & Co.
    Inventors: Heinz Kamp, Peter Gerhards, Siegfried Bruns
  • Patent number: 4998406
    Abstract: A can transport carriage for supplying an automatic spinning machine with full cans of sliver includes a rotating turntable having multiple can parking positions at equal radial spacings from the turntable axis and a can manipulating arrangement movable between a can transfer position immediately above one of the parking positions and a can delivery position at the spinning machine for moving a full sliver can from the one parking position to the spinning machine. An indexing drive rotatably indexes the turntable by one parking position for individually positioning each parking position in sequence at the can transfer position of the manipulating arrangement.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: March 12, 1991
    Assignee: W. Schlafhorst & Co.
    Inventor: Hans Raasch
  • Patent number: 4989722
    Abstract: An endless belt is driven between two yarn processing machines. A plurality of package carrier members are mounted at spaced intervals to the endless belt by pivot connections which permit the carrier members to travel in freely pivotal hang disposition. The carrier members support packages thereon to transport the packages from one machine to the other. A contact member adjacent the machine receiving the supported packages contacts the carrier members to release the supported packages therefrom as the carrier members travel thereby.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: February 5, 1991
    Assignee: W. Schlafhorst & Co.
    Inventor: Wilhelm Kuepper