Silo unloader

Claim 1

A SILO UNLOADER FOR A SILO HAVING AN UPRIGHT WALL AND A BOTTOM FLOOR WITH A CENTRAL OPENING COMPRISING, FOR BOTTOM UNLOADING OF THE SILO, A SUPPORTING MEMBER AT THE CENTRAL PORTION OF SAID OPENING WITH A DELIVERY SPACE THEREAROUND, A CIRCULAR TRACK EXTENDING AROUND THE FLOOR SPACED INWARDLY OF SAID WALL AND HAVING A FLANGE IN CLOSELY SPACED RELATION TO SAID WALL, AN AUGER MEMBER MOUNTED AT ONE END ON SAID SUPPORTING MEMBER FOR DELIVERY OF MATERIAL TO SAID DELIVERY SPACE, A FIRST DRIVING MOTOR FOR SAID AUGER MEMBER CARRIED BY SAID SUPPORTING MEMBER, MEANS FOR SUPPORTING THE OTHER END OF THE AUGER MEMBER ON SAID TRACK, SAID AUGER MEMBER HAVING A TRACK CLEARING MEMBER HORIZONTALLY MOVABLE THEREWITH, MEMBERS FOR ADVANCING SAID AUGER MEMBER IN A ROTARY PATH, SAID MEMBERS INCLUDING A DRIVING WHEEL HAVING A PLURALITY OF PERIPHERAL PROJECTIONS ENGAGING IN OPENINGS IN SAID FLANGE AT ONE FACE THEREOF, A SECOND DRIVING MOTOR CARRIED BY SAID AUGER MEMBER, AND OPERATING CONNECTINGS BETWEEN SAID SECOND DRIVING MOTOR AND SAID DRIVING WHEEL, SAID TRACK CLEARING MEMBER BEING A CUTTER WHEEL DISPOSED OUTWARDLY OF AND IN SUPERPOSED RELATION TO SAID TRACK AND CONTINGUOUS TO SAID UPRIGHT WALL, AND SAID CUTTER WHEEL HAVING PERIPHERALLY DISPOSED CUTTING EDGES MOVABLE IN THE SPACE BETWEEN SAID TRACK AND SAID UPRIGHT WALL AND ABOVE THE TOP PLANE OF THE FLANGE.