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Hopper loader

  • US 5,197,590 A
  • Filed: 04/30/1991
  • Issued: 03/30/1993
  • Est. Priority Date: 04/30/1991
  • Status: Expired due to Term
First Claim
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1. Positioning apparatus comprising:

  • feeder means for feeding a stream of signatures to an output utilization device;

    said output utilization device having a support frame;

    said feeder means including conveyor means for advancing said signature stream to said output utilization device and a support structure for supporting said conveyor means;

    said support structure including wheel means rollingly engaging a supporting surface for moving said feeder means;

    said output utilization device support frame having a clevis bracket assembly provided with substantially V-shaped guide means;

    positioning actuator means coupled to said feeder support structure including bidirectional motor means and an arm movable relative to said feeder support structure, said arm having a free end;

    the free end of said arm extending into said clevis bracket assembly;

    said clevis bracket assembly having an opening substantially conforming to the cross-sectional shape of said arm free end;

    a pin provided on said arm a spaced distance inward from the free end thereof;

    locking mans arranged on the clevis bracket assembly for embracing said pin when the free end of said positioning actuator arm extends a predetermined distance into said clevis bracket assembly; and

    means for operating said motor means to adjust the position of said feeder means relative to said output utilization device.

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