Having Ratchet Wheel And Interengaging Pawl For Driving Drum Patents (Class 254/217)
  • Patent number: 4317301
    Abstract: Apparatus is disclosed for disposing and stretching fabric about a frame, including first and second fabric locking members for releasably receiving and securing thereto the opposing peripheral edges, respectively, of a piece of fabric drawn about the frame. Each such locking member includes a support surface for receiving the frame, and a mechanism for releasably receiving and securing the fabric's edge in a manner that the fabric is disposed against the rear of the surface of the frame to facilitate the securing of the fabric by suitable fastening means, such as nails, tacks, etc. to the frame.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: March 2, 1982
    Assignee: Nifty Enterprises, Inc.
    Inventors: Harold R. Timphony, Rene F. DeCastro
  • Patent number: 4293121
    Abstract: A winch arrangement having a feed wheel for feeding a hauling line, such as a line through the winch. The wheel is driven in the feed direction by means of a reciprocatingly movable member, such as a pivotable lever. The lever is pivoted with the aid of the outgoing part of the line, by effecting a pumping movement therewith.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: October 6, 1981
    Inventor: Carl O. H. Wallin