Sweeping machine

Claim 1

IN A SWEEPING MACHINE HAVING A FRAME WHICH HAS GROUND WHEELS PROVIDING FOR MOVEMENT OF SAID MACHINE OVER A SURFACE, MEANS ON SAID MAIN FRAME FORMING A CHAMBER INTERMEDIATE THE ENDS OF SAID MAIN FRAME, A BRUSH ROTATABLY MOUNTED ON SAID MAIN FRAME AND DISPOSED IN SAID CHAMBER, SUCTION MEANS ON SAID MAIN FRAME DISPOSED ABOVE SAID CHAMBER AND COMMUNICATING THEREWITH FOR REMOVING DIRT FROM SAID BRUSH AND SAID CHAMBER, REMOVABLE FILTER MEANS OPERATIVELY ASSOCIATED WITH SAID SUCTION MEANS FOR COLLECTING DIRT REMOVED FROM SAID BRUSH AND CHAMBER, MEANS PIVOTALLY SUPPORTING AT LEAST ONE OF THE GROUND WHEELS ON SAID MAIN FRAME, POWER MEANS ON SAID MAIN FRAME CONNECTED TO SAID WHEEL SUPPORTING MEANS FOR MOVING AT LEAST ONE OF SAID WHEELS UP AND DOWN TO MOVE SAID BRUSH BETWEEN A SURFACE ENGAGING POSITION AND A POSITION SPACED ABOVE SAID SURFACE, AN IMPELLER ROTATABLY MOUNTED ON SAID MAIN FRAME AT A POSITION FORWARDLY OF SAID BRUSH FOR IMPELLING TRASH INTO THE PTH OF SAID BRUSH, GUARD MEANS MOUNTED ON SAID MAIN FRAME AND PROJECTING INTO SAID CHAMBER AT A POSITION ADJACENT THE FRONT AND TOP SIDES OF SAID BRUSH FOR DEFLECTING TRASH IMPELLED TOWARED THE TOP SIDE OF SAID BRUSH BY THE SAID IMPELLER, A TRASH COLLECTING RECEPTACLE ON SAID MAIN FRAME HAVING AN OPEN REAR SIDE DISPOSED ABOVE SAID IMPELLER AND LOCATED SO THAT TRASH IMPELLED INTO THE PATH OF SAID BRUSH IS THROWN INTO SAID RECEPTACLE THROUGH THE OPEN REAR SIDE THEREOF, SAID RECEPTACLE HAVING A FRONT DOOR AND A PUSHER MEMBER CONNECTED THERETO WHICH EXTENDS REARWARDLY FROM SAID FRONT DOOR, MEANS PIVOTALLY MOUNTING SAID DOOR AND PUSHER MEMBER FOR ROTATION ABOUT A SUBSTANTIALLY HORIZONTAL AXIS DISPOSED ABOVE SAID RECEPTACLE, AND MEANS FOR ROTATING SAID DOOR AND PUSHER MEMBER IN A DIRECTION TO MOVE SAID DOOR AWAY FROM THE FRONT END OF SAID RECEPTACLE AND MOVE SAID PUSHER MEMBER FORWARDLY THROUGH SAID RECEPTCLE TO MOVE TRASH THEREIN OUT THE FRONT END THEREOF.