Silo unloader

Claim 1

SILO UNLOADING APPARATUS FOR USE IN UNLOADING SILAGE FROM SILOS, SAID APPARATUS COMPRISING AN ELONGATE HORIZONTALLY ORIENTED AUGER TYPE CUTTER AND CONVEYOR MECHANISM FOR CUTTING AND CONVEYING SILAGE MATERIAL LONGITUDINALLY OF SAID MECHANISM, A MOBILE SUPPORT STRUCTURE SUPPORTING SAID CUTTER AND CONVEYOR MECHANISMS FOR HORIZONTAL TRAVEL UPON THE SURFACE OF THE SILAGE MATERIAL WITHIN THE SILO AND WITH ONE END OF SAID CONVEYOR MECHANISM POSITIONED ADJACENT THE CENTER OF THE SILO AND THE OTHER END THEREOF BEING DISPOSED ADJACENT THE INNER WALL SURFACE OF THE SILO, MEANS FOR DRIVING SAID MOBILE SUPPORT STRUCTURE TO SWING SAID CONVEYOR MECHANISM ABOUT SAID ONE END THEREOF IN A CIRCULAR HORIZONTAL PATH, A SECOND ELONGATE CONVEYOR MECHANISM HAVING ONE END THEREOF DISPOSED IN CLOSED PROXIMITY OF SAID ONE END OF SAID FIRST MENTIONED CONVEYOR MECHANISM AND HAVING ITS OTHER END THEREOF PROJECTING OUTWARDLY THROUGH AN OPENING IN THE SILO, IMPELLER MEANS INTERPOSED BETWEEN THE RESPECTIVE ONE ENDS OF SAID CONVEYOR MECHANISM AND INCLUDING A PAIR OF MULTI-BLADED ROTATING IMPELLERS ARRANGED IN CLOSED COOPERATIVE RELATION, ONE OF SAID BLADED IMPELLERS BEING REVOLVABLE ABOUT A HORIZONTAL AXIS DISPOSED ABOVE SAID FIRST CONVEYOR MECHANISM AND THE OTHER OF SAID BLADED IMPELLERS POSITIONED ABOVE SAID ONE IMPELLER AND BEING REVOLVABLE ABOUT A VERTICAL AXIS, SAID MULTI-BLADED IMPELLERS COOPERATING WITH EACH OTHER TO RECEIVE AND IMPEL THE MATERIAL FROM SAID FIRST MENTIONED CONVEYOR MECHANISM TO SAID SECOND MENTIONED CONVEYOR MECHANISM WHEREBY THE SILAGE IS CONVEYED OUTWARDLY OF THE SILO.