Soil ripper

Claim 1

IN A EARTH-WORKING MACHINE WHEREIN THE EARTHWORKING TOOL ELEMENTS, IN OPERATIVE POSITION, PENETRATE THE EARTH CONTINUALLY I SOIL-CLEAVING RELATION, COMPRISING A PAIR OF WHEELS MOUNTED ON AN AXLE HAVING A CENTRAL PORTION RADIALLY OFFSET FROM THE AXIS OF THE WHEELS, A TUBULAR HOUSING WITH EXTERIOR LUGS RECEIVING THE SAID CENTRAL PORTION OF SAID AXLE IN SWIVELED RELATION, A PAIR OF EARTHWORKING TOOLS FIXED TO THE ENDS OF SAID HOUSING AND EXTENDING DOWNWARDLY THEREFROM, TRANSVERSELY TO THE LENGTH THEREOF, BEARINGS CARRIED AT THE ENDS OF SAID HOUSING, A SHAFT IN SAID HOUSING HAVING STUB SHAFTS AT ITS ENDS JOURNALLED IN SAID BEARINGS AND A CENTRAL PORTION WITH ITS CENTER OF MASS OFFSET WITH RESPECT TO THE COMMON AXIS OF SAID STUB SHAFTS, A TRANSVERSE MOUNTING FRAME CARRIED BY SAID HOUSING, A HYDRAULIC POWER UNIT AT EACH END OF SAID FRAME WITH ITS ENDS CONNECTED, RESPECTIVELY, TO SAID FRAME AND A PORTION OF SAID AXLE INTERMEDIATE THE SAID OFFSET PORTION OF SAID AXLE AND THE TURNING AXIS OF SAID WHEELS, AN ELONGATE PLATFORM FIXED TO AND EXTENDING FORWARDLY OF SAID HOUSING AND CONSTITUTING A DRAFT TONGUE, A DRIVER PULLEY MOUNTED ON SAID PLATFORM FOR ROTATION ON AN AXIS TRANSVERSE TO THE TURNING AXIS OF SAID WHEELS, A DRIVER PULLEY ON ONE OF SAID STUB SHAFTS EXTERNALLY OF ITS ASSOCIATED BEARING, A PAIR OF IDLER PULLEYS ARRANGED TO COMMUNICATE ROTATION FROM SAID DRIVER PULLEY SAID DRIVEN PULLEY, AND A BELT TRANINED OVER SAID PULLEYS, SAID DRIVER PULLEY BEING ADAPTED FOR ATTACHMENT TO A POWER TAKE-OFF DEVICE LEADING TO A TOWING VEHICLE.