Spindle Stopping Patents (Class 57/88)
  • Patent number: 8307623
    Abstract: A spindle stopping mechanism for a yarn machine including a magnetic field assembly which when energized by a signal from a yarn breakage sensor causes a spindle gripping mechanism to grip and stop a spindle. A locking mechanism is also provided.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: November 13, 2012
    Assignee: Sanko Tekstil Isletmeleri San. Ve Tic. A.S.
    Inventors: Hakan Konukoglu, Ahmet Gokhan Aydin
  • Publication number: 20080127624
    Abstract: The flyer and spindle brake assembly for hand spinning wheels includes a cantilevered spindle and flyer assembly extending from a single maiden post. The spindle base is secured in an adjustable brake mechanism installed in the upper end of the maiden. The flyer has a closed distal end with a spindle bearing and yarn orifice. The flyer is urged toward its whorl or drive pulley by a coil spring on the spindle. The flyer is pulled axially outwardly away from the whorl to release the distal end of the spindle therefrom, the flyer then pivoting from the spindle axis for installation or removal of a bobbin or spool on the spindle. The brake mechanism provides extremely fine and accurate adjustment of braking force for the spindle and spool, while the flyer mechanism allows removal and installation of a spool on the spindle without the need for disassembly of components.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 5, 2008
    Inventor: Kenneth D. Brunk
  • Patent number: 6401877
    Abstract: A brake block for a brake of an open-end spinning rotor includes a take-up for releasable affixing to a brake block support. The brake block has at least two braking surfaces, whereby one braking surface in relation to the supporting surface of the open-end spinning rotor is, in comparison to the other braking surface, set back a certain distance. The result is that, during the first operational application of the brake block, only one braking surface touches the open-end spinning rotor, while the other braking surface comes into effect only after a predetermined amount of wear of the first braking surface.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: June 11, 2002
    Assignee: Wilhelm Stahlecker GmbH
    Inventor: Mathias Burchert
  • Patent number: 6298648
    Abstract: Multiple twist spindle to impart two+two twists to textile yarns and threads, whether they be continuous filaments or discontinuous fibres, the spindle comprising a spindle support (16) which supports a support (13) for the feed bobbin (12) maintained substantially stationary and two counter-rotating parts, respectively the inner rotary part (18a) and the outer rotary part (18b), the counter-rotating parts (18a, 18b) being coaxial to each other and substantially coaxial to the axis (19) of the spindle (10), the thread (F) unwinding from the feed bobbin (12) and leaving the inversion element (15) located above the bobbin (12) is induced by the counter-rotating parts (18a, 18b) to follow a path which first descends and then ascends, and then sent to collection means, the paths defining respectively an inner balloon (11a) and an outer balloon (11b) rotating outside the feed bobbin (12), the thread (F) receiving two twists for each revolution of each of the counter-rotating parts (18a, 18b), there being incl
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: October 9, 2001
    Inventor: Armando D'Agnolo
  • Patent number: 6205759
    Abstract: To provide an individual-spindle-drive type textile machine capable of making a number of wires to the drive motor of each spindle unit compact even if the number of spindle units is large. Because the spindle units are arranged in two parallel arrays, one in front and one to the rear, maintenance work is greatly simplified. A wiring duct box, in which the common wiring line for each wiring is extended and routed, is disposed between the front-stage and rear-stage spindle unit group arrays, and is configured such that an electronic circuit board governing the rotation speed control of each motor is removably connected to the wiring line.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: March 27, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Keiji Kuroda
  • Patent number: 6167688
    Abstract: To provide an individual-spindle-drive type multiple twister that enables the position of a spindle that has stopped due to a malfunction to be promptly identified, thereby making it possible to drive and stop each spindle easily. An individual-spindle-drive type multiple twister M comprising a large number of twisting units installed in a line, each of which rotates a spindle so as to twist yarn Y1 released from a supply package P, and each of the spindles having a spindle drive source 8, wherein a switching means 23 corresponding to the spindle drive source 8 for each spindle is provided at the same or approximately the same height relative to a machine body in order to drive and stop the spindle drive source for each spindle.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: January 2, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Toshinari Umeoka
  • Patent number: 6134871
    Abstract: To enable malfunctions in the spindle drive motors of an individual-spindle-drive type textile machine in which each spindle has a rotating member (a false twisting member 5) for twisting yarn and a motor 15 for rotating the rotating member to be easily determined, a driver 30 for controlling the rotational speed of the motor 15 for each spindle and an alarm means 44 for notifying operators of a malfunction in the driver 30 are provided for each spindle.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: October 24, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yuriko Kishimura
  • Patent number: 6047534
    Abstract: Regarding an independently driven type spindle in a spinning machine, when a yarn breakage is occurred in a spindle 10, a brake operating member 35 of the spindle 10 is moved toward a spindle shaft 13. During the movement of the brake operating member 35, control surfaces 49 of the brake operating member 35 cause the stop/restart switches 46 and 47 to be made OFF between the electric driving motor 20 and alternate current lines S and T, thereby causing the motor 20 to be rotated under its own momentum. Then, braking parts 34 of the brake operating member 35 is pressed to the outer peripheral surface of the spindle shaft 13, thereby executing a mechanical braking operation. After the withdrawal of an end of broken yarn, the brake operating member 35 is released, so that a force of the springs 41 causes the brake operating member 35 to be detached from the spindle shaft 13, thereby canceling the braking operation.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: April 11, 2000
    Assignee: Howa Machinery, Ltd.
    Inventors: Yutaka Tanaka, Ryoji Asakawa, Susumu Suzuki
  • Patent number: 5987872
    Abstract: A rotor brake (8) for an open-end spinning rotor rotating at a high speed in a rotor housing with its rotor shaft (2) rotatably supported in the bearing nip (3) of a support-disk bearing (4). The rotor brake (8) comprises brake levers (9, 10) having a replaceable brake lining (16, 26) on their ends engagable against the rotor shaft (2). The brake linings (16, 26) are manufactured from a carbon-fiber composite material resistant to changes in temperature.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: November 23, 1999
    Assignee: W. Schlafhorst Ag & Co.
    Inventor: Heinz-Georg Wessenhoven
  • Patent number: 5950414
    Abstract: A rotor brake (8) has a brake element holder (22) releasably fixed in place on a jaw-like brake lever (9, 10) and a dovetailed retaining slot (26) on its end. A brake element (30), which in cross section (A) has the shape of an equilateral triangle, is held in this dovetailed retaining slot (26). The brake element (30) has three brake surfaces (31, 31', 31"), which can be used alternately.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: September 14, 1999
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 5906092
    Abstract: The object of the invention is to provide a spinning machine which the manufacturing expenses and maintenance/checkout expenses are held down and the operation of the low voltage circuits is stabilized. In a spinning machine having a spindle motor control system, each three-phase power supply line is provided with a pair of conductive contacts electrically connected to at least two phases on the way thereof, and the pair of conductive contacts are structured to be separated when inserting an insulating unit therebetween and to come in contact with each other again when pulling out the insulating unit.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: May 25, 1999
    Inventor: Motonobu Hattori
  • Patent number: 5778650
    Abstract: A device for stopping a spindle of a textile machine driven by a drive belt has a roller for removing the drive belt from contact with the spindle whorl of the spindle. The roller is movable from a rest position, in which the roller is disengaged from the drive belt, into an engaged position in which the roller engages the drive belt and moves the drive belt away from the spindle whorl. A brake device for braking the spindle whorl is provided. A support member on which the roller rests in its rest position so as to be vibration-dampened is connected to the support of the textile machine.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: July 14, 1998
    Assignee: Palitex Project-Company GmbH
    Inventors: Wilfried Broich, Heinz Fink, Jurgen Kallmann, Wolfgang Leupers
  • Patent number: 5755085
    Abstract: A portable actuator for a spindle brake associated with a textile machine includes a body, an arrangement for biasing the spindle brake operator to operate the spindle brake to halt rotation of the spindle with the biasing arrangement mounted to the body and an arrangement for retaining the actuator in an engaged operating relationship with the spindle brake operator with the retaining arrangement being mounted to the body with the entire device being selectively attachable to and detachable from the textile machine.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: May 26, 1998
    Inventor: Roger E. Insley
  • Patent number: 5572859
    Abstract: A spinning- or twisting-machine has an elongated spindle bank, a row of rotatable spindles supported on the bank, respective individual drive motors on the bank for each spindle, respective electrical control circuits connected to the respective motors and electrically energizable to power the respective motor, and a plurality of electricity-supply conductors extending along the bank past the spindles. A respective housing support part for each spindle carries the respective electrical control circuit and is provided with electrical-input contacts. A mount engaged between the housing part and the spindle bank allows movement of the housing part on the bank between a closed position in which it surrounds and protects the respective circuit and in which the contacts conductively engage the supply conductors and an open position in which it exposes the respective circuit and disengages the contacts from the supply conductors.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: November 12, 1996
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Josef Derichs, Friedrich Dinkelmann, Gunter Neuburger, Ernst Halder, Ewald Nagele
  • Patent number: 5540042
    Abstract: The spinning rotor of an open-end spinning device is supported by means of a rotor shaft in the nip of at least one pair of supporting disks and can be driven by means of a tangential belt. A change-over device with a pressure roller is provided to press the tangential belt against the rotor shaft and a rotor brake which can be brought into action alternatively is provided. The change-over device is connected to a control lever which can be controlled as a function of the position of an actuator connected to a spinning station cover. The control lever is provided with an actuating arm. By opening the spinning station cover completely, a sufficient clearance can be produced between the actuator and the control lever so that the rotor brake can be deactivated through action exerted on the actuating arm of the control lever by means of the change-over lever on the one hand without allowing on the other hand the pressure roller to be yet actuated.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: July 30, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Edmund Schuller, Manfred Knabel, Erich Bock
  • Patent number: 5507140
    Abstract: A four-part spindle brake has a support body and cover insertable through an opening in a wall of a spindle rail of a spinning machine and receiving between them a brake body whose two levers are joined centrally by film hinges and are formed as outwardly and downwardly-extending pins received in bearing bosses of the cover and the support body. An actuating plate suspended by horizontal pivot pins on the support body has a spreader engageable between the levers for causing the jaws of the brake body to close upon the spindle.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: April 16, 1996
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Peter Mann, Jakob Bothner, Gerd Stolzner
  • Patent number: 5417047
    Abstract: The device comprises a support body (15) fixable to the machine structure and an operating lever (20) pivoted to the support body (15). Two parts (18a, 18b) are axially slidable within the support body (15), one carrying a brake shoe (19) arranged to act on the shank (11) of the spindle and the other engaged with the operating lever (20), the two parts (18a, 18b) being maintained axially spaced apart by a compression spring (24). A return spring (23) acts between the support body (15) and the part (18b) engaging the operating lever (20) to maintain the device in its inactive position. On pressing the lever (20), the brake shoe (19) is urged against the spindle shank (11) with a pressure which depends on the spring (24) interposed between the two parts (18a, 18b), independently of the force exerted on the operating lever (20), so preventing damage or operational problems arising in the spindles if the operator presses excessively on the operating lever (20).
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: May 23, 1995
    Assignee: Industrie Meccanotessili Marzoli S.r.l.
    Inventor: Claudio Locatelli
  • Patent number: 5347802
    Abstract: In the case of a spinning or twisting spindle, a plate, which is clamped in between a flange of a spindle bearing housing and a spindle rail, is provided as the common holding element for a securing hook and a brake.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: September 20, 1994
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Hans Stahlecker, Gerd Stahlecker
  • Patent number: 5099639
    Abstract: A rotation preventing apparatus presents rotation of the spindles of a textile machine due to the rotative forces applied by yarn tension during de-actuation of the drive motors of the spindles. The rotation preventing apparatus includes a reciprocable member supporting a plurality of brake shoe components adjacent the spindles and a commonly actuating assembly including pneumatic cylinder and piston members for reciprocably moving the reciprocable member between a position in which the brake shoe components brakingly contact the spindles and a position in which the brake shoe components are displaced from the spindles to permit normal rotation thereof. According to one aspect of the present invention, a contoured plate member is substituted for the brake shoe components. According to another aspect of the present invention, an expandable elastomeric member is supported adjacent the spindles and is selectively expandable to brake the rotation of the spindles.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: March 31, 1992
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Gerhard Grau, Hermann Guttler
  • Patent number: 5044149
    Abstract: A rotation preventing apparatus prevents rotation of the spindles of a textile machine due to the rotative forces applied by yarn tension during de-actuation of the drive motors of the spindles. The rotation preventing apparatus includes a reciprocable member supporting a plurality of brake shoe components adjacent the spindles and a commonly actuating assembly including pneumatic cylinder and piston members for reciprocably moving the reciprocable member between a position in which the brake shoe components brakingly contact the spindles and a position in which the brake shoe components are displaced from the spindles to permit normal rotation thereof. According to one aspect of the present invention, a contoured plate member is substituted for the brake shoe components. According to another aspect of the present invention, an expandable elastomeric member is supported adjacent the spindles and is selectively expandable to brake the rotation of the spindles.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: September 3, 1991
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Gerhard Grau, Hermann Guttler
  • Patent number: 4989401
    Abstract: In the case of a brake for an open-end spinning rotor which, by a shaft, is disposed in a wedge-shaped gap of at least one pair of supporting disks, two mirror-symmetrically arranged tong arms are provided which can each be swivelled around an axle extending in parallel to the shaft. The double-armed tong arms, at one arm, are equipped with brake linings which can be applied to the shaft. The arms facing away from the shaft are spread apart by a common actuating element. The actuating element can be moved freely in moving direction of the arms.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: February 5, 1991
    Assignee: Wilhelm Stahlecker GmbH
    Inventors: Wolfgang Feuchter, Dieter Gotz
  • Patent number: 4962633
    Abstract: In the case of a tangential belt drive for a plurality of spindles of a spinning or twisting machine, which are arranged in a row, it is provided that, in each case, one pressure roller is arranged in the center between two spindles and deflects the tangential belt in the direction toward these two spindles. The pressure rollers are held in such a manner that when the pressure roller is in the operative position, they can be moved toward each of the two spindles assigned to them, approximately in parallel to the direction of the course of the tangential belt.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: October 16, 1990
    Assignee: Nouibra GmbH
    Inventors: Gerd Stahlecker, Klaus Hofstetter
  • Patent number: 4947632
    Abstract: The machine comprises a series of rotatable spindles (3), each of these being associated with respectively one cap-shaped thread guide member (7) rotatable about the spindle axis. A first drive belt (5) serves for turning the spindles (3). A second belt (12) is in contact with whorls (11) on the thread guide members (7). A device exerting contact pressure (13, 14, 15) urges the second belt (12) during operation against the whorls (11) with an adjustable force so that the belt (12) exerts, by means of friction, a small braking force on the whorls (11) running faster than the belt (12). The contact pressure device (13, 14, 15) can be switched over in order to press the second belt (12) against the whorls (11) with a substantially greater force. Upon shutoff of the spinning machine, the contact pressure device (13, 14, 15) is switched over so that the decelerating second belt (12) exerts a substantially greater friction force on whorls (11) and rapidly brakes the thread guide members (7) concomitantly.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: August 14, 1990
    Inventor: Louis Vignon
  • Patent number: 4932199
    Abstract: The instant invention relates to an open-end spinning device in which the spinning rotor is mounted on the drive shaft. The bearing and braking means are designed so that the spinning rotor can also be operated and braked securely at high rotational speeds. This is achieved by installing the braking means between the open end of the spinning rotor and the rotor shaft bearing system.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: June 12, 1990
    Assignee: Schubert & Salzer Maschinenfabrik Akitengesellschaft
    Inventor: Eberhard Grimm
  • Patent number: 4899528
    Abstract: A device for the control of an open-end spinning element, including a pivoted control lever (4) is provided which is capable of assuming three different working positions. In a production position the control lever brings a first drive, running at production speed, into driving contact in the operation of the open-end spinning element. In a braking position the control lever brings a brake to act upon the spinning element. The control lever in a piecing position brings a second drive which runs at a lower speed than the first drive into driving contact with the open-end spinning element. At least the positions determining the production and the piecing position of the control lever are provided with a common control element, capable of being moved back and forth in the direction of movement of the free end of the control lever between at least two switching positions.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 13, 1990
    Assignee: Schubert & Salzer Maschinenfabrik Aktiengesellschaft
    Inventors: Maximilian Fahmuller, Edmund Schuller, Gottfried Schneider
  • Patent number: 4785620
    Abstract: A bearing and driving unit for a spinning rotor of an open-end spinning unit is provided. A braking element is provided for braking a rotor shaft, and a cleaning element is provided for cleaning the rotor shaft. Actuating elements are provided for activating and deactivating the braking element and the cleaning element. The cleaning element is applied to the rotor shaft with a contact force which is controlled independent of a contact force control of the braking element.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: November 22, 1988
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Wolfgang Feuchter
  • Patent number: 4773210
    Abstract: The invention relates to an open-end rotor-spinning device with a rotor shaft which is mounted and driven in the wedge-shaped gap between supporting disks and to the free end of which is assigned an axial bearing. A simplified mounting, which also allows the supporting disks to be removed and exchanged while the machine is in operation, is provided because the rotor shaft (1) is mounted at two bearing points, of which one is formed by supporting disks (2, 3) arranged in the vicinity of the spinning rotor (10) and the second is a bearing (5) which absorbs axial and radial forces and which receives the free end (11) of the rotor shaft (1). An increase in the operating speed of the spinning rotor (10) without an increase in the running speed of the drive means (6) is achieved as a result of a reduction of the diameter of the rotor shaft (1) in the region of the drive means.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 27, 1988
    Assignee: Schubert & Salzer
    Inventors: Hans Landwehrkamp, Eberhard Grimm, Eugen Hini, Kurt Inderst
  • Patent number: 4763465
    Abstract: A braking device for a rotor shaft of a rotor spinning machine of the type having spaced pairs of rotating bearing support discs. A brake shoe is pivoted for movement upwardly between the bearing support discs and a pair of holddown elements are pivoted for movement downwardly from above the bearing support discs against the rotor shaft to hold the rotor shaft in the nip of the bearing support discs while the brake shoe is acting to brake the rotor shaft, with the holddown elements applying a cleaning action on the rotor shaft. The manipulating mechanism for the holddown elements and brake shoe are such as to apply a greater force downwardly through the holddown elements than is applied upwardly by the brake shoe so that the rotor shaft will remain in the nip of the bearing support discs during the application of braking by the brake shoe.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: August 16, 1988
    Assignee: W. Schlafhorst & Co.
    Inventor: Hans Raasch
  • Patent number: 4756150
    Abstract: A mount for spinning spindles which discloses various embodiments of wedge type clamping devices for clamping a sleeve, which is disposed around the spindle housing, securely to a spindle bearing plate. The sleeve surrounds the spindle housing with vibration damping elements between them. The wedge clamping devices are driven by a threaded nut which is tightened up around the sleeve and this clamps the sleeve to the plate. A device for separating the drive belt from the drive whorl of the spindle is attachable on the sleeve and presses the belt off the drive whorl, freeing the spindle so that it may then be unclamped for removal from the spindle bearing plate.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: July 12, 1988
    Assignee: FAG Kugelfischer Georg Schafer (KGaA)
    Inventors: Gunther Schmitt, Gunter Oppl, Armin Bohn
  • Patent number: 4753067
    Abstract: In an open-end rotor spinning machine having a plurality of spinning stations located next to one another, each spinning station has a spinning rotor (40) which is arranged in a housing (1) and has a drive spindle (42) extending transversely to the machine longitudinal direction. This drive spindle (42) is mounted in the gusset portion of a supporting disk bearing (44). The supporting disk bearing (44) is supported by the housing (1) which accommodates the spinning rotor (40) and which is mounted on a swivelling axis (10). The spinning rotor (40) is driven by a drive belt (43) extending in the machine longitudinal direction. The housing (1) can be swivelled away from this drive belt (43) to such an extent that the housing (1) can be removed from its receptacle on the machine side.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: June 28, 1988
    Assignee: Schubert & Salzer
    Inventors: Hans Landwehrkamp, Eberhard Grimm
  • Patent number: 4706450
    Abstract: In the case of a supporting roller bearing for a horizontally arranged spinning rotor, it is provided that braking means are arranged below a tangential belt moving between two pairs of supporting roller. The braking means contain two brake shoes that can be applied essentially horizontally to the shaft from the direction of two sides, said brake shoes being arranged on tong arms. The applying of the brake shoes takes place in such a way that the brake shoe that during the application moves in moving direction of the tangential belt comes to rest against the shaft before the other brake shoe. In addition, it is provided that a tension roller loading the tangential belt in normal operation, during the braking, will not be moved off the tangential belt before both brake shoes are applied to the shaft.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: November 17, 1987
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Wolfgang Feuchter, Dieter Goetz
  • Patent number: 4703616
    Abstract: A bearing and driving assembly is disclosed for an open and spinning rotor unit of a spinning unit of the type having a rotor mounted on a rotor shaft, a twin disk bearing arrangement for rotatably supporting the rotor shaft and a tangential belt drivingly engaging the rotor shaft. A tension roller is loaded against the tangential belt. To minimize failures of such a system caused by a resonant system vibrations and to facilitate high spinning speeds with minimal manufacturing expenses, the supporting disk pairs are axially spaced a distance slightly larger than the axial width of the tension roller. Brake members are disposed below the tangential belt so as to be applied with substantially horizontal movement radially against the rotor shaft.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: November 3, 1987
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Wolfgang Feuchter, Dieter Goetz, Friedbert Schmid
  • Patent number: 4662165
    Abstract: A braking device for spindles of textile machines, in which the spindle is caused to rotate by an endless drive belt; the braking device comprises a pivotable brake supporting member provided with a braking pad and a belt-disengaging idle roller. The brake support member is pivotable between a first operative position in which the braking pad and the roller are disengaged from the spindle and respectively from the drive belt, and a second operative position in which the idle roller disengages the belt from the spindle and the braking pad is pressed against the belt-pulley of the spindle; spring means act to maintain the brake support member in both operative positions.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: May 5, 1987
    Inventor: Carlo Menegatto
  • Patent number: 4633661
    Abstract: In a friction false-twisting unit including three parallel spindles supported on a mount and each spindle carrying a stack of friction disks and the friction disks of the various spindles being interleaved, the thread to be threaded into the unit passing from an upper thread guide above the ends of the spindles, over a thread guide arm which holds the thread away from contact with the disks, and to a feeder system below the other end of the spindles. A support lever is movable between an operative position which holds the drive whorl for the spindles in contact with an operating belt and an inoperative position at which the spindle mount is moved to separate the drive whorl from the belt. The thread guide arm is on the support lever to be moved to the position holding the thread away from the disk when the support lever is moved to the inoperative position of the unit.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: January 6, 1987
    Assignee: FAG Kugelfischer Georg Schafer (KGaA)
    Inventors: Gunther Paul, Kirit Patel, deceased
  • Patent number: 4627228
    Abstract: A textile machine has a spinning frame whose working elements, such as spindles, for respective whorls tangentially driven by a common belt. In order to allow energy efficient start-up of the individual whorls while the remaining whorls continue to be driven by the belt and without effecting the remaining whorls, the individual working element or spindles and their whorls are provided with a pivot pressing roller carrier whose pressing roller can hold the belt with normal pressing pressure at operating speed, can relieve the pressing pressure for braking of the individual whorl, and can press the belt with increased force against the individual whorl by manual operation of a lever individual to each mechanism for start-up.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: December 9, 1986
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Horst Wolf
  • Patent number: 4594844
    Abstract: A stop spindle for textile machines, particularly spinning and twisting machines. A ferromagnetic clutch element, formed e.g. by a circular disc, is mounted axially displaceably between the whirl of the stop spindle and a brake lining behind which there is mounted an electromagnet. The brake lining is made of non-magnetic material and is mounted between the pole shoes of a permanent magnet. The electromagnet is energized by an electric pulse so as to create a magnetic field which is additive with respect to the magnetic field of the permanent magnet, whereby to start the driving of the spindle; the electromagnet is energized by an electric pulse so as to create a magnetic field which is substractive with respect to the magnetic field of the permanent magnet whereby to stop the driving of the spindle and to brake it.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: June 17, 1986
    Assignee: Elitex, koncern textilniho strojirenstvi
    Inventor: Cyril Muzila
  • Patent number: 4574577
    Abstract: In the case of an arrangement for disposing and driving a spinning rotor of an open-end spinning unit which, by means of a rotor shaft, is disposed in wedge-shaped gaps formed by two pairs of supporting disks and is driven by a belt looping around it, it is provided that the belt is looped around a driving pulley of an electric motor which, with respect to the supporting disks, is arranged in the area opposite the rotor shaft and which, for the tightening of the belt, is movably held in a guide in a plane extending at least approximately through the wedge-shaped gap. A belt holding device is provided for holding the belt in a relaxed position so that the spinning rotor shaft can be readily axially withdrawn and exchanged without requiring any disassembly of the belt drive.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: March 11, 1986
    Assignees: Hans Stahlecker, Fritz Stahlecker, W. Schlafhorst & Co.
    Inventors: Josef Derichs, Fritz Stahlecker
  • Patent number: 4570435
    Abstract: An open-end friction spinning machine is disclosed having a plurality of spinning units which each include adjacently arranged rollers driven in the same rotational direction and forming an accessible wedge-shaped yarn forming gap. A fiber inlet and opening device is provided for opening fiber material to be spun. A fiber feed channel connects to the inlet and opening device and has its fiber feed outlet opening to the yarn forming gap. The yarn withdrawal device draws off the produced yarn in the longitudinal direction of the yarn forming gap. Each spinning unit is provided with a channel carrier removable for the exposure of the yarn forming gap, which channel carrier forms at least one portion of the fiber feed channel containing the fiber feed outlet opening of the same. The channel carrier is adjusted in its operational position by means of centering means with respect to both the inlet and opening device and the bearing housing for the friction rollers.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: February 18, 1986
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 4559775
    Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of rotating circular discs having cooperating friction surfaces for engaging a running yarn at a twisting zone. A pressure applying member is positioned to apply a biasing force to the rear surface of one of the discs locally at the twisting zone, and the pressure applying member comprises a receptacle slideably mounting a piston which extends from the end of the receptacle to engage the disc. The receptacle is eccentrically mounted to permit selective positioning of the biasing force with respect to the yarn path of travel. The discs are mounted on pivotal rocking arms whereby the ratio of yarn twist to yarn speed may be adjusted, and an eccentrically mounted pin provides closely controlled adjustability for the arms and thus the twist ratio.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: December 24, 1985
    Assignee: Barmag Barmer Maschinenfabrik AG
    Inventor: Detlev Oberstrass
  • Patent number: 4545192
    Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of rotating circular discs having cooperating friction surfaces for engaging a running yarn at a twisting zone. The drive system for the discs includes a drive component which includes a drive whorl and a coaxial drive pulley, and which is adapted to engage two separate drive belts. The drive component includes a unitary tubular drive member, a central shaft extending through and fixed to the drive member, a sleeve mounted to the frame of the apparatus and extending between the shaft and drive member, and bearings positioned between the shaft and sleeve. Also, the drive component is mounted to the frame by an arrangement which permits adjustment of the rotational axis of the drive whorl about a second axis which perpendicularly intersects the rotational axis, so as to permit accurate alignment of the rotational axis of the whorl along a direction perpendicular to the running direction of the tangential drive belt.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: October 8, 1985
    Assignee: Barmag Barmer Maschinenfabrik AG
    Inventor: Detlev Oberstrass
  • Patent number: 4522021
    Abstract: A series of spindles is supported on a rail. A spindle brake is provided acting on a selected one of a pair of spindles which are driven to rotate by a belt. The spindle brake is supported on a holder. The holder is pivoted to the rail. A pair of levers pivotally attached to the holder are respectively pulled for pivoting the holder in one and the opposite directions. A brake element is supported to the holder. The brake element includes a brake surface. Pivoting of the holder pivots the brake element to bring the brake surface into braking engagement with the respective spindle. A belt lift-off roller is pivotally supported to the holder on an axis spaced from the holder axis and is so shaped and placed that pivoting of the holder to brake a particular spindle moves the belt lift-off roller to lift the belt off that particular spindle.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: June 11, 1985
    Assignee: FAG Kugelfischer Georg Schafer, Kommanditgesellschaft auf Aktien
    Inventor: Gunther Schmitt
  • Patent number: 4478035
    Abstract: A broken end piecing up apparatus for ring spinning frames having a servicing assembly propelled along the spinning frame. This servicing assembly comprises a pressurized housing which contains the mechanisms. An optical scanner is provided for detecting the absence of yarn on the corresponding bobbin and provision is made for positioning the apparatus in front of the spindle where the absence of yarn has been detected. The apparatus has a mechanism which then stops the broken end spindle and rotates it in the unwinding direction, withdrawing and picking up this broken end from the bobbin. Then a predetermined length of yarn is pulled out from this bobbin and fed through the corresponding ring traveller. The broken end is cut, combed and fed to the roving issuing from the drafting systems and the piecing up operation of both takes place. Then the servicing assembly moves on to detect a further absence of yarn.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: October 23, 1984
    Inventor: Roberto E. Pons
  • Patent number: 4445320
    Abstract: A spindle brake for a spinning or twisting machine has a pair of arms whose jaws are engageable with the whorl of a spinning or twisting spindle. One of these arms carries a belt-lifting roller adapted to lift the belt away from the whorl when the brake is actuated thereby preventing friction between the belt and the immobilized whorl.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: May 1, 1984
    Assignee: FAG Kugelfischer Georg Schafer & Co.
    Inventors: Gunter Oppl, Gunther Schmitt
  • Patent number: 4418522
    Abstract: The disclosure embraces a method of and apparatus for transferring dual strands or bundles of filamentary material from a rotating single supply package or creel package onto bobbins mounted on first and second rotating spindles, the method and apparatus involving the use of a control unit, stop motion assembly or knockoff device for each strand or bundle, the control units, stop motion assemblies or knockoff devices having a mechanical interconnection established whenever one of the strands or bundles breaks or sustains loss of tension whereby the rotation of the supply package and the rotation of the two spindles mounting strand or bundle receiving bobbins are interrupted.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: December 6, 1983
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Kenneth T. Harrop, Robert D. McArtor
  • Patent number: 4402177
    Abstract: An apparatus and method for stopping operation of an open-end spinning machine is disclosed whereby the rotor shaft 1 of the spinning rotor and the shafts 30, 40 of the support rollers 3, 4 are rapidly but gently stopped by applying a braking force to the shafts of the support rollers after the rotor shaft is braked. Preferably a single force is shared and applied in timed sequence for braking the rotor shaft and the support roller shafts. The apparatus for carrying out the method includes a pivotable lever 7 which is pivotable about an axis 70 and carries a support 73 having a brake lining which receives the rotor shaft 1. A belt lifting roller 72 is carried on the pivotable lever which lifts a tangential belt 5 off of the rotor shaft 1 to thus stop the drive of the spinning rotor. The support 73 is elastically carried on the lever 7 by means of a U-shaped spring 74.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: September 6, 1983
    Assignee: Schubert & Salzer
    Inventors: Eberhard Grimm, Rudolf Oexler, Eugen Hini
  • Patent number: 4386495
    Abstract: A double twisting spindle is equipped with a pneumatically operated threading device. An injector nozzle is provided in the spindle rotor, an air stream through which nozzle sucks a thread into a hollow spindle axle and moves the thread through a thread channel in the storage plate. A compressed-air supply device is arranged below the spindle rotor for supplying compressed air to a central connecting channel provided in the spindle rotor and in communication with the injector nozzle. A common operating lever is provided which first operates a spindle brake and then opens a valve of the compressed-air supply device. The connecting channel has at its open lower end a funnel-shaped enlargement.
    Type: Grant
    Filed: March 5, 1981
    Date of Patent: June 7, 1983
    Assignee: Saurer-Allma GmbH
    Inventors: Waldemar Rothmeier, Rolf-Dieter Weber, Zdenek Hemala, deceased
  • Patent number: 4380143
    Abstract: A device comprises a housing (1) which carries bearings (2) of a rotor (3), a cylindrical pivot (4) fixedly secured to the housing (1), a latch (7) attached to the housing (1) by a spring (6), and a brake shoe (11). In accordance with the invention a strap (10) to which at least one brake shoe (11) and said latch (7) are fixedly secured is installed for a reciprocating movement on the housing (1).
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: April 19, 1983
    Inventors: Abdurakhim Abduganiev, Valentin N. Tikhonov, Gennady N. Shlykov, Vitaly I. Zhestkov, Timur P. Krjuk, Viktor M. Mukhin, Jury N. Tikhonov
  • Patent number: 4326372
    Abstract: An apparatus for braking and positioning a spinning or twisting spindle with the spindle rotor in a specified position, having a spindle brake which engages with a rotary part, preferably a wharve, of the spindle, and, separate from said brake, positioning means comprising an additional braking surface which extends over part of the periphery of a rotary part, preferably a wharve, of said spindle and up to which an additional brake member is movable. The apparatus provides a more simply constructed braking and positioning means where it is permissible for the spindle to be stopped within a certain angular range about a prescribed central position. In the illustrated embodiment, a spindle brake proper comprises shoe means 7 engageable with an inside periphery of a skirt 5 of wharve 4, and there is provided positioning means comprising an additional braking surface 9 which preferably extends over an angle from 15.degree. to 30.degree. and which is engageable by an additional brake shoe 12.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: April 27, 1982
    Assignee: Palitex Project-Company GmbH
    Inventor: Siegfried Inger
  • Patent number: 4266397
    Abstract: On a ring spinning or twisting frame having winding units with rotatable thread follower rings, the difference in the speed of rotation between the ring and its follower during the restarting of the winding unit, after repair of a thread break, is maintained within acceptable limits while the frame continues to run at its high operational speed, by controlling the rotational speed of either the ring or the spindle, the speed of the controlled element being varied either continuously, or in one or more steps during the restarting operation.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: May 12, 1981
    Assignee: Zinser Textilmaschinen
    Inventors: Atilla Donmez, Wolfgang Igel
  • Patent number: 4265083
    Abstract: A method and apparatus for individually piecing up yarn on an open-end spinning machine which has a spinning rotor and a rotor brake. A rotor cleaning apparatus is carried on a pivotal cover and is used for cleaning the rotor responsive to being activated. A pivotal lever which when moved relative to the cover simultaneously activates the rotor cleaning apparatus and the rotor brake causing the rotor to be cleaned as the rotor is being stopped. The yarn is pieced up when the rotor is being brought back up to running speed.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: May 5, 1981
    Assignee: Schubert & Salzer
    Inventors: Erwin Braun, Erich Bock, Karl Handschuch, Edmund Schuller