Quarter drain ditchers

Claim 1

IN COMBINATION, A TRACTOR HAVING AT LEAST ONE REAR DRIVING WHEEL, A QUARTER DRAIN DITCHER COOPERATING WITH SUCH TRACTOR FOR USE IN DIGGING QUARTER DRAINS IN SUGAR CANE FIELDS HAVING HILLS AND TROUGHS, THE TROUGHS OF WHICH DEFINE SUBSTANTIALLY PARALLEL DRAINAGE DITCHES, THE PATH OF THE QUARTER DRAIN IS AT AN ANGLE TO THE PATHS OF THE DRAINAGE DITCHES WITH THE EYE OPENINGS OF THE DRAINAGE DITCHES AT THEIR JUNCTURE WITH THE QUARTER DRAIN DITCH; MEANS ATTACHING SAID DITCHER ON SAID TRACTOR AT THE REAR OF THE TRACTOR AND REARWARDLY OF AND IN SUBSTANTIALLY LONGITUDINAL ALIGNMENT WITH SAID REAR DRIVING WHEEL OF THE TRACTOR AND INCLUDING MEANS FOR OPERATING THE DITCHER FROM THE POWER SOURCE OF THE TRACTOR, SAID DITCHER COMPRISING A DISC ROTATBLE ON AN AXIS DISPOSED LONGITUDINALLY OF THE TRACTOR AND ROTATED BY SAID OPERATING MEANS FOR THE DITCHER, SAID DITCHER HAVING AN EARTH ENGAGING POSITION, EARTH DISTRIBUTING BLADES OUTSTANDING FROM SAID DISC FOR DISTRIBUTING EARTH AT RIGHT ANGLES TO THE AXIS OF ROTATION OF SAID DISC, SAID DISTRIBUTING BLADES HAVING A MAJOR DIMENSION WHICH EXTENDS RADIALLY FROM ABOUT THE CENTER OF SAID DISC AND ARE SPACED ANGULARLY APART ON THE DISC, PRIMARY EARTH ENGAGING BLADES MOUNTED TO ROTATE WITH SAID DISC AND POSITIONED TO ENGAGE THE EARTH IN ADVANCE OF PITCHED TO INDUCE HIGH VELOCITY FLOW OF THE LOOSENED EARTH TO TRAVEL INTO THE EARTH DISTRIBUTING BLADES, SAID PRIMARY EARTH ENGAGING BLADES BEING AT SUBSTANTIALLY A RIGHT ANGLE TO SAID EARTH DISTRIBUTING BLADES AND BEING OF A TRANSVERSE WIDTH SUBSTANTIALLY LESS THAN THE ARC BETWEEN ADJACENT EARTH DISTRIBUTING BLADES CARRIED BY SAID DISC, THE DIAMETER OF THE PRIMARY EARTH ENGAGING BLADES BEING LESS THAN THE DIAMETER OF SAID DISC AND THE MAJOR DIMENSION OF THE DISTRIBUTING BLADES BEING SUBSTANTIALLY EQUAL TO THE RADIUS OF SAID DISC SO THAT THE RADIALLY OUTER EDGES OF THE DISTRIBUTING BLADES EXTEND APPROXIMATELY TO THE PERIPHERY OF SAID DISC SO THAT THE PRIMARY BLADES DIRECT THE LOOSENED EARTH REARWARDLY INTO THE PATH OF ROTATION OF THE LEADING RADIAL FACES OF THE DISTRIBUTING BLADES, EARTH DEFLECTING MEANS COMPRISING SHIELD MEANS POSITIONED AT LEAST PARTIALLY ABOUT THE AXIS OF ROTATION OF SAID BLADES AT THE LOWER PERIPHERAL PORTION OF SAID DISC AND COOPERATING WITH SAID DISTRIBUTING BLADES TO PROJECT THE LOOSENED EARTH ALONG THE DRAINAGE DITCH BETWEEN ADJACENT CANE ROWS IN A THIN SCATTERED PATTERN BEYOND THE EYES OF THE DRAINAGE DITCH.