Potato digging and separating apparatus

Claim 1

A SELF-PROPELLED VEHICLE FOR HARVESTING POTATOES AND THE LIKE FROM THE EARTH COMPRISING A FRAME, FRONT AND REAR WHEELS SECURED TO SAID FRAME; MOTIVE MEANS FOR PROPELLING SAID VEHICLE; MEANS FOR STEERING SAID VEHICLE INCLUDING MEANS FOR TURNING SAID REAR WHEELS TO PROVIDE A SHORT TURN RADIUS FOR SAID VEHICLE, DIGGER MEANS CARRIED BY SAID FRAME FOR PLOWING INTO THE EARTH TO DIG POTATOES, FIRST LONGITUDINAL CONVEYOR MEANS ON SAID FRAME DISPOSED BEHIND SAID DIGGER MEANS FOR RECEIVING POTATOES, STONES AND OTHER MATERIAL THEREON, VINE STRIPPING MEANS DISPOSED BEHIND SAID FIRST CONVEYOR MEANS FOR STRIPPING VINES THEREFROM, SECOND LONGITUDINAL CONVEYOR MEANS ON SAID FRAME DISPOSED REARWARDLY OF SAID VINE-STRIPPING MEANS FOR RECEIVING POTATOES, STONES AND OTHER MATERIAL FROM SAID FIRST CONVEYOR MEANS AFTER THEY HAVE PASSED SAID VINE-STRIPPING MEANS, BRUSH MEANS ASSOCIATED WITH SAID SECOND CONVYEOR MEANS FOR SEPARATING POTATOES FROM SAID STONES AND OTHER MATERIAL, THIRD LONGITUDINAL CONVEYOR MEANS ON SAID FRAME DISPOSED ADJACENT SAID SECOND CONVEYOR MEANS FOR RECEIVING POTATOES THEREON SEPARATED BY SAID BRUSH MEANS SAID FIRST, SECOND, AND THIRD CONVEYOR MEANS BEING DISPOSED IN AN IN-LINE ARRANGEMENT; AND DRIVE MEANS FOR ROTATING SAID FIRST, SECOND, AND THIRD CONVEYOR MEANS, AND SAID BRUSH MEANS, IN THE SAME DIRECTION AND OPPOSITE THE DIRECTION OF TRAVEL OF SAID VEHICLE, WHEREBY SAID POTATOES ARE DUG, STRIPPED FROM ANY VINES AND SEPARATED FROM ANY STONES IN A SUBSTANTIALLY STRAIGHT IN-LINE OPERATION.