Patents Assigned to G & W Machinery Inc.
  • Mandrel for a ball winding machine
    Patent number: 4300727
    Abstract: A mandrel for winding yarn having a plurality of sets of articulated arms rotatable about a central axis. Each set of arms is movable radially between a first position in which the sets define a generally cylindrically shape of small diameter and second position defining a generally cylindrical shape of larger diameter. A plurality of fingers are arranged respectively between selective adjacent sets so as to define a generally cylindrical shape having a diameter intermediate the small and larger diameter.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: November 17, 1981
    Assignee: G & W Machinery Inc.
    Inventors: Manfred Koch, Ernst Bosshard