Grab Patents (Class 212/81)
  • Patent number: 3999665
    Abstract: The handling of metal coils, such as coils of sheet steel, aluminum or other materials is facilitated through the use of a transfer bar which is inserted in the coils before they are removed from a rewind mandrel. In a typical operation the transfer bar is inserted between the inside diameter of the coil and the outside diameter of the rewind mandrel adjacent the coil tail after the mandrel has been collapsed. The transfer bar is then raised into engagement with the coils, contacting them adjacent their tails, and the coils are thereafter carried by the transfer bar as they are moved from the rewind mandrel to a turnstile horn and from the turnstile horn to a downlayer. As a result, removal of the coil tails from the mandrel gripper slot is facilitated, eliminating telescoping of the coils upon removal from the mandrel, and damage to the inside diameters of the coils is obviated because there is no sliding of the coils along the mandrel or turnstile horn after they are carried by the transfer bar.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: December 28, 1976
    Assignee: Stamco Division, The Monarch Machine Tool Company
    Inventor: John W. Rogers
  • Patent number: 3975044
    Abstract: This invention relates to a bucket assembly, as for example, a clamshell-type bucket assembly for use in a material handling apparatus, such as, for example, a ship unloader. More particularly, this invention relates to a novel bight-of-line reeving system for use in a scissors-type bucket assembly.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: August 17, 1976
    Assignee: Dravo Corporation
    Inventor: Aubrey C. Briggs