Cultivating and weeder attachment for tractors

Claim 1

AN AGRICULTURAL DEVICE FOR MOUNTING UPON AND OPERATION BY A TRACTOR OR VEHICLE COMPRISING A SUPPORT FRAME, MEANS FOR SECURING SAID SUPPORT FRAME TO THE SIDE OF A TRACTOR IN ADJUSTABLY TILTED POSITIONS ABOUT A HORIZONTAL AXIS EXTENDING TRANSVERSELY OF THE PATH OF MOVEMENT OF THE DEVICE, A CARRIAGE EXTENDING REARWARDLY OF SAID SUPPORT FRAME, MEANS PIVOTALLY MOUNTING SAID CARRIAGE UPON SAID SUPPORT FRAME FOR SWINGING ABOUT A HORIZONTAL AXIS TRANSVERSE TO SAID PATH OF MOVEMENT, ACTUATING MEANS CONNECTED TO SAID SUPPORT FRAME AND CARRIAGE FOR EFFECTING SAID SWINGING MOVEMENT OF THE LATTER, A PLURALITY OF TOOL UNITS EACH DISPOSED BELOW AND EXTENDING REARWARDLY OF SAID SUPPORT FRAME, MEANS INDEPENDENTLY AND PIVOTALLY MOUNTING SAID TOOL UNITS IN SIDE-BY-SIDE SPACED ALIGNMENT UPON SAID SUPPORT FRAME AND BENEATH SAID CARRIAGE, AGRICULTURAL IMPLEMENTS DEPENDING FROM AND ADJUSTABLY CARRIED BY SAID TOOL UNITS AND DISPOSED FOR WORKING CROP ROWS AS SAID DEVICE MOVES ALONG SAID CROP ROWS, VERTICALLY EXTENDING RESILIENT CONNECTIONS SECURING EACH TOOL UNIT TO SAID CARRIAGE, SAID TOOL UNITS COMPRISES LATERALLY SPACED PAIRS OF SUBSTANTIALLY PARALLEL AND HORIZONTAL SUPPORTS, AN AXLE JOURNALED IN EACH PAIR OF SUPPORTS, MEANS FOR IMPARTING ROTATION TO SAID AXLES, SAID AGRICULTURAL IMPLEMENTS BEING EACH ROTATABLY MOUNTED ON AN AXLE.