Apparatus and method of cleaning seed cotton

Claim 1

A SEED COTTON CLEANER COMPRISING: (A) A RELATIVELY DEEP FIRST RECTANGULAR DUCT FOR CONVEYING A STREAM OF AIR CARRYING SEED COTTON MIXED WITH TRASH OF VARYING WEIGHT AT A VELOCITY SUFFICIENT TO FLOAT SAID SEED COTTON BUT INSUFFICIENT TO FLOAT SAID TRASH; (B) A CASING SURROUNDING A FORWARD PORTION OF SAID FIRST DUCT; (C) AN ADJUSTABLE BAFFLE WITHIN SAID FIRST DUCT EXTENDING ACROSS THE WIDTH THEREOF FOR DEFLECTING THE STREAM AND REMOVING FROM SAID STREAM A PORTION OF THE RELATIVELY HEAVIER TRASH CARRIED THEREBY; (D) A RELATIVELY WIDE, SHALLOW SECOND DUCT IN SAID CASING CONNECTED TO SAID FIRST, DUCT, SAID SECOND DUCT BEING OF SMALLER CROSS SECTION THAN SAID FIRST DUCT TO EFFECT AN INCREASE IN AIR VELOCITY, SAID SECOND DUCT HAVING TWO SUBSTANTIALLY REVERSE AND OPPOSED TURNS TO FORM A GENERALLY S-SHAPED CURVE AND BEING PROVIDED WITH A CUT-AWAY PORTION IN THE OUTER WALL OF EACH OF SAID TURNS, SAID CUUT-AWAY PORTIONS EXTENDING THE ENTIRE WIDTH OF THE WALLS; (E) A PLURALITY OF ROTATABLE, ADJUSTABLE TRIABGULAR BARS IN EACH OF SAID OPENINGS, FOR REMOVING RELATIVELY LIGHTER TRASH, EXTENDING THE ENTIRE WIDTH OF THE SECOND DUCT TO PROVIDE A PLURALITY OF PARALLEL PASSAGEWAYS THROUGH THE OUTER WALLS OF THE CURVED PORTIONS OF SAID SECOND DUCT, SAID TRIANGULAR BARS BEING SO DISPOSED THAT AN APEX PORTION OF EACH BAR EXTENDS INTO THE SECOND DUCT IN A DIRECTION OPPOSED TO THE DIRECTION OF AIR FLOW IN SAID SECOND DUCT; AND (F) MEANS CONNECTED TO SAID FIRST AND SECOND DUCTS FOR COLLECTING TRASH REMOVED BY SAID BAFFLE AND TRIANGULAR BARS.