Separator for cotton harvesting apparatus

Claim 1

A COMBINATION ELEVATOR EXTENSION AND SEPARATOR APPARATUS SUITABLE FOR ATTACHMENT TO THE DISCHARGE END OF A COTTON ELEVATOR WHEREIN SAID ELEVATOR INCLUDES MECHANICAL CONVEYOR MEANS AND MEANS FOR PROVIDING A COTTONENTRAINING AIR STREAM, AND FOR SEPARATING BOTH RELATIVELY MORE DENSE AND RELATIVELY LESS DENSE IMPURITIES FROM FRESHLY HARVESTED COTTON, SAID APPARATUS COMPRISING, IN COMBINATION, DUCT MEANS DEFINING AND ENCLOSED FIRST SEPARATION ZONE WHEREIN SAID RELATIVELY DENSE IMPURITIES ARE SEPARATED FROM COTTON DISCHARGED FROM THE MECHANICAL CONVEYOR AND ENTRAINED INTO THE AIR STREAM, SAID DUCT MEANS INCLUDING MEANS IN THE FORM OF A BAFFLE PLATE FOR SEPARATING IMPURITIES BY A MECHANICAL DEFLECTION DOWNWARD WHEN SAID DENSE IMPURITIES ARE THROWN AGAINST SAID BAFFLE PLATE, AND DUCT MEANS DEFINING A SECOND SEPARATION ZONE FOR SEPARATION OF RELATIVELY LESS DENSE IMPURITIES, SAID SECOND ZONE INCLUDING MEANS FOR CREATING A HIGHER VELOCITY REGION OF LOW TURBULENCE AND LOWER AIR VELOCITY REGION OF GREATER TURBULENCE IN SAID SECOND ZONE, AND A THIRD ZONE FROM WHICH SAID THUS PURIFIED COTTON IS DISCHARGED.