Earth moving apparatus

Claim 1

AN EARTH MOVING VEHICLE COMPRISING A WHEELED SUPPORT STRUCTURE, A HOPPER SUPPORTED ON SAID STRUCTURE AND HAVING A FORWARD END DISPOSED INTERMEDIATE THE ENDS OF SAID STRUCTURE AND HAVING AN OPEN REARWARD END DISPOSED ADJACENT THE REARWARD END OF SAID STRUCTURE, A SLIDABLE PUSHER PLATE DISPOSED IN UPRIGHT POSITION IN SAID HOPPER AND MOUNTED FOR MOVEMENT FROM A POSITION ADJACENT THE FORWARD END OF SAID HOPPER TO A POSITION ADJACENT THE REARWARD END TO PUSH MATERIAL OUT THE OPEN REARWARD END OF SAID HOPPER, MOUNTING MEANS AT THE UPPER FORWARD END OF SAID HOPPER, MEANS PIVOTALLY CONNECTING SAID HOPPER MOUNTING MEANS TO SAID SUPPORT STRUCTURE FOR PIVOTING MOVEMENT ABOUT A HORIZONTAL AXIS LOCATED ADJACENT THE UPPER FORWARD ENDS OF THE SIDE WALLS OF THE HOPPER, FIRST POWER MEANS CONNECTED BETWEEN SAID SUPPORT STRUCTURE AND SAID HOPPER FOR PIVOTING SAID HOPPER ABOUT SAID AXIS TO ELEVATE THE REARWARD OPEN END OF SAID HOPPER FLOOR FROM A POSITION IN WHICH THE REAR EDGE OF THE HOPPER FLOOR IS BELOW GRADE TO A POSITION IN WHICH THE REAR EDGE OF THE FLOOR IS ABOVE SAID AXIS AND THE HOPPER IS UPWARDLY INCLINED FROM SAID AXIS, AND SECOND POWER MEANS CONNECTED BETWEEN SAID HOPPER AND SAID SLIDABLE PUSHER PLATE FOR MOVING SAID PLATE REARWARDLY WHILE THE REARWARD END OF THE HOPPER IS ELEVATED TO FORCE MATERIAL IN SAID HOPPER OUT THE OPEN REARWARD END THEREOF.