Self-frictioning Patents (Class 66/124)
  • Patent number: 5544501
    Abstract: A knitting needle for a chainstitch knitting machine is disclosed wherein protuberances are introduced into the shank of the needle in order to prevent the needle from changing its position within a groove of the needle bar so that the needle hooks maintain an even distance between each other to avoid flaws in the knitted material such as striping. The protuberances are impressed into the material of the shank of the needle by pressing tools. In one embodiment, three protuberances are pressed into the shank to thereby create a three point abutment on one side of the shank against one wall of the groove, while the other side of the shank abuts against the other wall of the groove. In another embodiment, wave-like through bends are created which create linear bends normal to the longitudinal extent of the needle shank. this will assure a linear abutment of the protuberance against one wall of the groove rather than a point contact.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: August 13, 1996
    Assignee: Liba Maschinenfabrik GmbH
    Inventor: Adolf Hagel
  • Patent number: 5097683
    Abstract: A tool for a stitch forming machine which includes a bed and a plurality of guide grooves disposed in the bed, the tool including a shank slidably disposed in one of the guide grooves. The shank includes an end having a stitch forming device, and has a butt and at least two bends spaced from one another along a longitudinal direction of the shank. The bends are oriented toward the same side of the shank and are disposed in a region of the shank which, during sliding movement of the shank during operation of the knitting machine, remains within the guide groove.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: March 24, 1992
    Assignees: Theodor Groz & Sohne, Ernst Beckert Nadelfabrik Commandit-Gesellschaft
    Inventors: Bernhard Schuler, Kurt Wiedenhofer
  • Patent number: 5076074
    Abstract: A knitting tool, such as a selector sinker or a needle for a knitting machine, includes a flat shank and a narrow elongate control spring projecting from a slot-like opening in a narrow side of the shank. One end of the control spring has a broader anchorage section at one end which is inserted into a recess provided at an inward end of the opening in the shank. The width of the recess, measured transversely to the longitudinal extent of the opening, is greater, at least at certain locations, than the width of the opening. The thickness of the anchorage section of the control spring is less than or equal to the depth of the recess. As a result, the control spring is rigidly anchored in the shank in a manner secure against rotation.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: December 31, 1991
    Assignee: Theodor Groz & Sohne & Ernst Beckert Nadelfabrik Commandit-Gesellschaft
    Inventors: Hans-Joachim Halamoda, Albert Teufel
  • Patent number: 3977217
    Abstract: This is a knitting machine element for use in the slots of machines for circular knitted fabrics. The element is twisted so as to press it against the slot walls to produce a uniform pressure and predictable positioning of the element thereby eliminating rocking, misalignment, and improving frictional characteristics.
    Type: Grant
    Filed: June 1, 1971
    Date of Patent: August 31, 1976
    Assignee: The Torrington Company
    Inventor: William Alden Ross