Hollow Mandrels Patents (Class 142/54)
  • Patent number: 5645117
    Abstract: A turner holds a wood blank while positioning it adjacent a cutting bit of a router to cut the blank into a shaped cylindrical object. The turner includes a mandrel and two mandrel wheels attachable to ends of the mandrel, which each have finger gripping portions. A wood block is disposed on the mandrel and the wheels are attached to the mandrel. Spacers may be used to position the wood block. The mandrel/wood block assembly is then moved adjacent a cutting bit, such as a router bit, to remove wood from the wood block. This enables generally cylindrically shaped objects to be formed which may then be polished and finished and used in pens, mechanical pencils, handles and like holders.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 8, 1997
    Assignee: Woodworker's Supply
    Inventors: John Wirth, Jr., Jay L. Sanger, Mark P. Tompkins
  • Patent number: 5127452
    Abstract: A hollow shaft, threaded on the interior, permits a workpiece, having a square cross section, to be rotated therein and thereby moved axially to be driven against a cutting edge to form the dowel.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: July 7, 1992
    Assignee: Structural Block Systems, Inc.
    Inventor: Arthur L. Wilston
  • Patent number: 4553575
    Abstract: A dowel cutting method and apparatus comprising a stationary cutting tool having an internal bore and at least one cutting edge at its input end into which woodstock is disposed while being rotated by an electric hand drill or the like to create a finished dowel at the opposite end of the cutting tool. The cutting tool may be held in a bench vise. A sizer for dowels is also disclosed comprising a series of holes in a flat metal plate having a ground side which cuts down a dowel in a sequence of operations, if needed, to an accurate smaller dowel. A simple final sanding operation is also disclosed utilizing sandpaper and the sizing apparatus.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: November 19, 1985
    Inventor: Kenneth L. Brown