With Means To Retard Or Stop Vehicle Approaching Structure Patents (Class 414/367)
  • Patent number: 7258050
    Abstract: A method of cutting an elongate timber web which forms on each of two opposed ends thereof a tapered end shape including a series of at least four cuts at successive angles to approximate an arcuate convex end. The method includes the steps of performing first and second passes of the web through a saw having cutter groups at adjustably spaced apart locations, each cutter group having at least two cutters (101, 102, 103, 104) set to angles so that the cutters of each cutter group correspond to a subset of said series of cuts (201, 202, 203, 204) at a respective end of the web. The web is rotated between the passes, the rotation between passes and the cutter settings together result in a multi-faceted end cut.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 21, 2007
    Assignee: Turb-O-Web International Pty. Limited
    Inventor: John Edwin Griffith