Dual grain tanks for a combine

Claim 1

IN A COMBINE HAVING A CLEAN GRAIN ELEVATOR AND HAVING A SEPARATOR UNIT WITH SPACED-APART SIDE PANELS, A FIRST GRAIN TANK AFFIXED TO ONE OF SAID SIDE PANELS AND SPACED THEREFROM TO PROVIDE A CLEARANCE AREA, A SECOND GRAIN TANK POSITIONED PARALLEL WITH THE OTHER OF SAID SIDE PANELS AND SPACED THEREFROM, MEANS INCLUDING AT LEAST ONE PIVOTAL COUPLING UNIT ALIGNED ALONG A VERTICAL PIVOT AXIS TO FACILITATE HORIZONTAL ROTATION OF SAID GRAIN TANK AWAY FROM SAID OTHER SIDE PANEL AND THUS PROVIDE ACCESS TO THE DRIVE ELEMENTS THEREON, GRAIN DELIVERY MEANS HAVING FIRST AND SECOND INPUT LOCATIONS AND POSITIONED TO FEED GRAIN FROM SAID FIRST INPUT LOCATION INTO ONE OF SAID GRAIN TANKS AND FROM SAID SECOND INPUT LOCATION INTO THE OTHER OF SAID GRAIN TANKS, VALVE MEANS INTERPOSED BETWEEN SAID CLEAN GRAIN ELEVATOR AND SAID GRAIN DELIVERY MEANS, FOR REGULATING THE VOLUME OF GRAIN FED TO SAID FIRST AND SECOND INPUT LOCATIONS AND THEREBY EFFECTING A CORRESPONDING REGULATION OF THE AMOUNTS OF GRAIN STORED RESPECTIVELY IN SAID FIRST AND SECOND GRAIN TANKS TO CONTROL THE OVERALL WEIGHT DISTRIBUTION OF THE COMBINE UNIT, AND A CLEAN GRAIN UNLOADING SYSTEM COMPRISING AS FIRST CONVEYOR SECTION DISPOSED BENEATH THE BOTTOM PORTION OF THE SEPARATOR UNIT AND IN COMMUNICATION WITH SAID FIRST GRAIN TANK, A SECOND CONVEYOR SECTION DISPOSED BENEATH SAID SECOND GRAIN TANK IN COMMUNICATION THEREWITH AND HAVING AN ELBOW PORTION DISPOSED FOR INTERLOCKING ENGAGEMENT WITH SAID FIRST CONVEYOR SECTION.