Silo unloader

Claim 1

IN A SILO UNLOADER ADAPTED TOR INSTALLATION IN A SILO ABOVE THE SURFACE OF THE ENSILAGE WHICH INCLUDES MEANS FOR CUTTING ENSILAGE, MEANS FOR GATHERING AND MOVING THE CUT ENSILAGE TOWARD THE CENTER OF THE SILO AND FOR DISCHARGING THE CUT RESILAGE LATERALLY FROM THE SILO COMPRISING IN COMBINATION, A PAIR OF SUBSTANTIALLY PARALLEL OPPOSITELY ROTATING ELONGATED AUGERS POSITIONED ADJACENT TO EACH OTHER; THE SPACE BETWEEN SAID AUGERS BEING UNOBSTRUCTED; SAID AUGERS EXTENDING HORIZONTALLY AND INCLUDING A CENTRAL SHAFT TO WHICH IS SECURED SPIRAL FLIGHTING ADAPTED TO GATHER SAID CUT AND LOOSENED ENSILAGE THEREBETWEEN AND MOVE SAID ENSILAGE AXIALLY OF SAID AUGERS TOWARD THE CENTER OF THE SILO, AN IMPELLER SPACED RADIALLY OF SAID AUGERS AND POSITIONED SUBSTANTIALLY THEREBETWEEN, DRIVE MEANS FOR SWINGING SAID AUGERS IN A CIRCULAR PATH ABOUT SAID IMPELLER SIMULTANEOUSLY WITH THE CONVEYING ROTATION OF SAID AUGERS INDIVIDUALLY ABOUT THEIR OWN LONGITUDINAL AXES; SUBSTANTIALLY PLANAR EXTENDING MEMBERS SECURED TO SAID AUGERS AND MOVABLE THEREWITH;