Control for materials handling apparatus

Claim 1

IN MATERIALS HANDLING APPARATUS INCLUDING CONVEYOR MEANS FOR MOVING MATERIALS, FIRST HYDRAULIC MEANS FOR SELECTIVELY DISPOSING AT LEAST A PORTION OF SAID CONVEYOR MEANS AT A FIRST, MATERIALS MOVING POSITION AND A SECOND, RETRACTED ELEVATED POSITION, EJECTOR MEANS FOR MOVING MATERIALS, SECOND HYDRAULIC MEANS FOR SELECTIVELY MOVING AT LEAST A PORTION OF SAID EJECTOR MEANS BETWEEN A THIRD, RETRACTED POSITION AND A FOURTH, EJECT POSITION, AND A SOURCE OF PRESSURIZED HYDRAULIC FLUID, MEANS FOR CONTROLLING OPERATION OF SAID APPARATUS BY SAID PRESSURIZED FLUID COMPRISING: FIRST CONTROL MEANS FOR CONDUCTING PRESSURIZED FLUID FROM SAID SOURCE TO SAID FIRST HYDRAULIC MEANS TO MOVE SAID CONVEYOR MEANS FROM SAID FIRST POSITION TO SAID SECOND POSITION; SECOND CAM OPERATED HYDRAULIC CONTROL MEANS FOR SENSING THE DISPOSITION OF SAID CONVEYOR MEANS; THIRD CONTROL MEANS FOR CONDUCTING PRESSURIZED FLUID FROM SAID SOURCE TO SAID SECOND HYDRAULIC MEANS TO MOVE SAID EJECTOR MEANS TO SAID FOURTH POSITION, SAID THIRD CONTROL MEANS PERMITTING MOVEMENT OF SAID EJECTOR MEANS TO SAID FOURTH POSITION ONLY IN THE EVENT THAT SAID SECOND CAM OPERATED HYDRAULIC CONTROL MEANS SENSES DISPOSITION OF SAID CONVEYOR MEANS AT SAID SECOND POSITION; FOURTH CAM OPERATED HYDRAULIC CONTROL MEANS FOR SENSING THE DISPOSITION OF SAID EJECTOR MEANS; AND FIFTH CONTROL MEANS FOR RELEASING SAID FIRST HYDRAULIC MEANS TO PERMIT SAID CONVEYOR MEANS TO MOVE FROM SAID SECOND, ELEVATED POSITION TO SAID FIRST POSITION, SAID FIFTH CONTROL MEANS PERMITTING MOVEMENT OF SAID CONVEYOR MEANS TO SAID FIRST POSITION ONLY IN THE EVENT THAT SAID FOURTH CAM OPERATED HYDRAULIC CONTROL MEANS SENSES DISPOSITION OF SAID EJECTOR MEANS AT SAID THIRD POSITION.