Patents Assigned to Australian Longwall Pty. Limited
  • Patent number: 5979642
    Abstract: A conveyor assembly (11) for attachment to a conveyor belt boot end (10) for use in a mine. The conveyor assembly (11) includes two conveyor modules (12) and (13) which are towed by the boot end (10). The two conveyor modules (12) and (13) enable assembly of a conveyor structure (16) to support the conveyor belt (17). The conveyor structure (16) is constructed during movement of the boot end (10).
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: November 9, 1999
    Assignee: Australian Longwall Pty Limited
    Inventors: Kevin Ross Hall, Gordon Wilkinson
  • Patent number: 5366068
    Abstract: Disclosed is a conveyor belt/cutting head advancement mechanism (10). Mechanism (10) comprises a conveyor belt support structure (11) connected at one end to a conveyor belt gathering structure (12). The conveyor belt support structure (11) is typically interconnected at its forward end to a self advancing conveyor return end (not shown). Material removed from a mine face by the cutting implement is delivered to a conveyor belt supported by the support structure (11). Structure (11) comprises a plurality of structural elements (18) pivotally interconnected in a scissor-like configuration. The mid points of elements (18) are pivotally interconnected at a point coinciding with the mounting location of a conveyor belt return roller (16). At the upper pivotally interconnected extremities of elements (18), the conveyor belt advancing rollers are supported. Mounted at a location nearby the lower ends of elements (18) are ground engaging wheels (17).
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: November 22, 1994
    Assignee: Australian Longwall Pty. Limited
    Inventors: Kevin R. Hall, Gordon Wilkinson