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Portable truck and railroad car load conveyer

  • US 4,813,839 A
  • Filed: 11/30/1987
  • Issued: 03/21/1989
  • Est. Priority Date: 11/30/1987
  • Status: Expired due to Term
First Claim
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1. A portable self-powered truck and railroad car load conveyer with movement and elevating mechanics comprising:

  • a substantially rectangular wheeled main support frame affixed at a terminal end as a part thereof with;

    a low profile, ground paralleling drive-over load receiving ramp;

    said wheeled main support frame attached pivotally at a load accepting end of a conveyer belted elevating structure;

    said elevating structure and said main support frame fitted cooperatively with controlled mechanics for raising and lowering a load discarding end of said elevating structure;

    said conveyer belt comprising a strip of suitable belting material having on a conveying surface cleating designs and on a second surface a frictional finish arranged for lagged mating with a similar surface on a hydraulically motored head roller provided at said load discharging end of said elevating structure;

    said belting material fastened end-to-end into a continuous loop with said surface having said frictional finish faced inwardly;

    there being included cooperatively in said elevating structure and said main frame mechanical means and fixtures for moving said conveyer belt in a continuous loop from an idler roller adjacent the terminal end of said drive-over ramp and said hydraulically motored head roller at said discharge end of said elevating structure with said conveyer belt passing horizontally along the opened top of said drive-over ramp, there being means for movably retaining and supporting said conveyer belt aligning horizontally and longitudinally in said top of said drive-over ramp and in an upwardly material-moving position between side walls under a catwalk covering in said elevating structure, there being return retainers in the underside of said side walls of said elevating structure and the underside of said drive-over ramp providing supportively an unrestricted course for powered circulatory movement of said conveyer belt;

    said wheeled main support frame having attached thereto an internal combustion motor powering means and fuel tank for same, a hydraulic pumping means operationally attached to said powering means, a pressure withstanding hydraulic fluid storage tank, a one-operator controlling station with seat, stand, and immediate controls for operating said powering means and control valves functional with the various hydraulic motors, hydraulic cylinders or hydraulic rams required in the operational system, said control valves connected to supply controlled pressurized hydraulic fluid from said hydraulic pumping means to said operational system through tubular circulatory attachments, a part thereof;

    said wheeled main support frame affixed with front and rear telescoping superstructure hydraulically operated to raise and lower at least four small dual wheel sets of two tired wheels positioned crosswise to said wheeled main support frame at four apposite corners for sideways movement thereof with two of said dual wheel sets on one side of said wheeled main support frame hydraulically motored for steering and movement and the other two said dual wheel sets positioned on the opposite side of said wheeled main support frame with one set being rigidly affixed thereto and the second set pivotally attached thereto;

    said wheeled main support frame further including at least two hydraulically driven tired street wheels for controlling forward and rearward movement and having controllable hydraulically operated lifting mounts for moving the tired street wheels into a down position for ground use of said tired street wheels for heavy duty support, for forward and backward movement, and highway tow transporting of said load conveyer and for moving the tired street wheels into an upwardly retracted position for sideways or circular movements of said load conveyer when said dual wheel sets are in use.

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