Patents Assigned to Bracker AG
  • Patent number: 7096656
    Abstract: The present invention relates to a ring traveler (10) for ring spinning or ring twisting machines, with a core (20) consisting of a ferrous material, a covering layer (24) being arranged on at least parts of the core. The covering layer (24) in this case contains fine-crystalline chromium nitride, vanadium carbide or titanium carbonitride. As a result of the covering layer, the ring traveler according to the invention has good abrasion resistance and corrosion resistance.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: August 29, 2006
    Assignee: Bracker AG
    Inventor: Jörg Kägi
  • Publication number: 20050252191
    Abstract: The present invention relates to a ring traveler (10) for ring spinning or ring twisting machines, with a core (20) consisting of a ferrous material, a covering layer (24) being arranged on at least parts of the core. The covering layer (24) in this case contains fine-crystalline chromium nitride, vanadium carbide or titanium carbonitride. As a result of the covering layer, the ring traveler according to the invention has good abrasion resistance and corrosion resistance.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 17, 2005
    Applicant: BRACKER AG
    Inventor: Jorg Kagi
  • Patent number: 6804943
    Abstract: The ring traveler (10) according to the invention has a noncoated core (20) which consists of iron material and which is provided with an, if appropriate, multipart nitrided edge layer (23; 24) at least in the region of the running surfaces (1) with which said core slides on a ring of a ring spinning or ring twisting machine.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: October 19, 2004
    Assignee: Bracker AG
    Inventor: Jorg Kagi
  • Patent number: 6360521
    Abstract: A ring for a ring spinning or a ring twisting machine, comprising an annular polished core and a hard chrome layer, wherein the core is coated with a copper layer, and wherein the hard chrome layer is applied to the copper layer.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 26, 2002
    Assignee: Bracker AG
    Inventor: Jörg Kägi
  • Patent number: 6283163
    Abstract: A rod-shaped thread guide element (1) for a textile machine disclosed. The guide element includes two metallic longitudinal sections (22, 24) which open out into a middle section (16). A threaded eye (10) is fixed in the middle section by an adhesive.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 4, 2001
    Assignee: Bracker AG
    Inventor: Jorg Kagi
  • Patent number: 5794426
    Abstract: A lever (30) is pivotably mounted about ax axis Z on a carrier journal (24) which is pivotable about an axis X and with which electromagnets (46, 48) cooperate. The lever carries a thread-receiving member (20) and is under the effect of a tension spring (42). When the thread is intercepted by the thread-receiving member during the forward rotation of the cop, there follows a deflection of the thread-receiving member, which takes place with the tension spring being tensioned at the same time and which is caused by the thread, on a path approximate to the movement of the traveller on the ring. The tensioned tension spring pivots the thread-receiving member during the paying-out of thread which occurs as a result of the subsequent reverse rotation of the cop. As a result of the intermediate blocking about one of the axes, the thread-receiving member moves on a path lying approximately in a tangential plane relative to the ring.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: August 18, 1998
    Assignee: Bracker AG
    Inventor: Andreas Neff
  • Patent number: 5303464
    Abstract: An apparatus for automated replacement of ring travelers on spinning or twisting rings is disclosed comprising generally a housing having two planar support members, parallel to each other. A lift-out device is pivotably supported in a first of the two planar members and a device for the attachment of a new ring traveler is supported in the second plane, parallel to the first plane. The devices function by guide systems, pivotable by eccentric cams, located on a common drive shaft to be able to move the two devices between an operational and an off position. A housing, containing the two devices, is mobile along a ring rail of a spinning machine. The lift-out device lifts out a ring traveler which is to be replaced from the spinning ring on the ring rail. The attachment device subsequently attaches a new ring traveler from a magazine rod onto the spinning ring.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: April 19, 1994
    Assignee: Bracker AG
    Inventor: Andreas Neff
  • Patent number: 5297380
    Abstract: A ring traveller for use with a bevelled flanged ring of a ring spinning machine or a ring doubling and twisting machine, wherein the ring traveller comprises: (a) first and second traveller arms arranged in approximately the same direction, the first traveller arm being longer than the second traveller arm and having a counterface intended for bearing on the running surface of the ring, and the second traveller arm has an inwardly angled engagement part intended for engagement with an annular shoulder; and (b) a connecting part extending between the traveller arms and comprising first and second straight portions extending towards each other at an obtuse angle, whereof the first straight portion adjoins the first longer traveller arm via an arcuate portion and a circular arcuate portion interconnects the first and second straight portions and forms an apex whose distance from the first traveller arm is greater than its distance from the second traveller arm.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: March 29, 1994
    Assignee: Bracker AG
    Inventor: Franz Oberholzer
  • Patent number: 4575933
    Abstract: Ring travelers supplied on a magazine strip are transferred to a magazine bar by pulling at the magazine strip in a predetermined direction. At its front end the magazine bar is bent-off at right angles and is tapered in order to form a hook at this location for placing a momentarily preparatory-held ring traveler onto the annular flange of a spinning or twisting ring. The preparatorily-held ring traveler is clamped between the hook and a separator element in a tongue-like manner. The separator element is connected to a housing structured as a handle by means of a pivotable support. To mount the ring traveler at the angular flange of the spinning or twisting ring the handle-like housing must be retracted, and during this retraction the magazine bar which is mounted at a slide is pulled out from the housing against the force of a spring.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: March 18, 1986
    Assignee: Bracker AG
    Inventor: Andreas Neff
  • Patent number: 4373247
    Abstract: A tool is supported by a support face on the upper side of a spinning or twisting ring, with a bearing face bearing on the outer edge of the ring. A hook engages by a tip below the inner end of a ring traveller, which is brought into a predetermined position by a permanent magnet let into a support part. By actuating the tool, the hook is moved in the direction of the support face, so that it lifts the ring traveller over the inner edge of the ring. After passing over the inner edge and due to its spring action, the expanded ring traveller jumps into a channel, which leads to a collecting container. With such a removal of the ring traveller from the ring, the yarn drawn by the ring traveller remains undamaged.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: February 15, 1983
    Assignee: Bracker AG
    Inventors: Ernst Holenstein, Paul Ramseier
  • Patent number: 4355665
    Abstract: A thread guiding eye, which may be made from case-hardened or rust-proof steel, is embedded in a heddle moulded from plastic. The embedding is effected by injection-moulding the plastic around the thread guiding eye. The thread guiding eye may have an essentially crescent-shaped profile, its edges being embedded in the plastic in order to ensure a smooth and uninterrupted transition. The longitudinal parts and/or the region of the thread guiding eye are at least approximately oval in cross-section. A heddle of this type combines the advantages of a metal heddle because of the reduced wear of the thread guiding eye and those of a non-metallic heddle because of its low weight.
    Type: Grant
    Filed: May 26, 1980
    Date of Patent: October 26, 1982
    Assignee: Bracker AG
    Inventors: Paul Ramseier, Hans Burkhalter
  • Patent number: 4334402
    Abstract: A process and apparatus for lubricating a ring traveler of ring spinning or ring twisting frame is disclosed in which lubricant is supplied to the ring traveller (18) and to the contact surface between the spinning or twisting ring (12, 16) and the ring traveller (18) from a lubricant store (24), which is disposed on the inside of the spinning or twisting ring (12) and which is provided on its upper side with lubricant outlet openings. The air current which rises during the spinning or twisting serves to convey the lubricant. Such lubrication makes it possible to operate the ring traveller (18) at a greater rotational speed, without increasing its wear. The productivity of the machine is thus increased by this a greater rotational speed.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: June 15, 1982
    Assignee: Bracker AG
    Inventor: Emil Stutz
  • Patent number: RE35139
    Abstract: A ring traveller for use with a bevelled flanged ring of a ring spinning machine or a ring doubling and twisting machine, wherein the ring traveller comprises: (a) first and second traveller arms arranged approximately the same direction, the first traveller arm being longer than the second traveller arm and having a counterface intended for bearing on the running surface of the ring, and the second traveller arm has an inwardly angled engagement part intended for engagement with an annular shoulder; and (b) a connecting part extending between the traveller arms and comprising first and second straight portions extending towards each other at an obtuse angle, whereof the first straight portion adjoins the first longer traveller arm via an arcuate portion and a circular arcuate portion interconnects the first and second straight portions and forms an apex whose distance from the first traveller arm is greater than its distance from the second traveller arm.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: January 2, 1996
    Assignee: Bracker AG
    Inventor: Franz Oberholzer
  • Patent number: D430470
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: September 5, 2000
    Assignee: Bracker AG
    Inventor: Andreas Neff