Apparatus for removing impurities from fibrous material

An apparatus for removing impurities from fibrous material such as cotten, comprising:

• a first clothed driven roller;
• means for feeding said fibrous material to be cleaned to said first clothed roller;
• a second clothed driven roller following said first clothed roller in fiber transfer relation with said first clothed roller;
• a rotating cylindrical cage;
• air stream means for supplying said fiber material from said second clothed roller to said rotating cylindrical cage;
• a housing closely surrounding said first and second clothed rollers;
• an opening provided in said housing adjacent said first clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said first clothed roller;
• an opening provided in said housing adjacent said second clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said second clothed roller;
• said second clothed roller cooperating with said first clothed roller as a delivery and opening roller for said fibrous material;
• said first and second clothed rollers being driven so that the centrifugal forces at the periphery of said second clothed roller are greater than at first clothed roller,
• a third driven clothed roller;
• a housing surrounding said third clothed roller;
• openings provided in said housing adjacent said third clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said third clothed roller;
• means for positioning said third clothed roller relative to said first and second clothed rollers so that a carding effect is exerted on said fibrous material between said first clothed roller and said third clothed roller and said second clothed roller cooperates as a delivery and opening roller with said first clothed roller and said second clothed roller;
• and
• said third clothed roller being driven so that the centrifugal force appearing at said third clothed roller is less than that at said first clothed roller.

An apparatus for removing impurities from fibrous material such as cotton, comprising:

• a first clothed driven roller;
• means for feeding said fibrous material to be cleaned to said first clothed roller;
• a second clothed driven roller following said first clothed roller in fiber transfer relation with said first clothed roller;
• a rotating cylindrical cage;
• air stream means for supplying said fiber material from said second clothed roller to said rotating cylindrical cage;
• a housing closely surrounding said first and second clothed rollers;
• an opening provided in said housing adjacent said first clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said first clothed roller;
• an opening provided in said housing adjacent said second clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said second clothed roller;
• said second clothed roller cooperating with said first clothed roller as a delivery and opening roller for said fibrous material,
• said first and second clothed rollers being driven so that the centrifugal forces at the periphery of said second clothed roller are greater than at said first clothed roller,
• a calendar roller carried on said cylindrical cage for pressing said fibrous material against said cylindrical cage;
• a fiber stripping and conveying roller carried on said cylindrical cage for whirling up the fibrous material as it is transported to a fiber takeoff point associated with said rotating cylindrical cage, and
• means for applying a negative pressure to the interior of said cylindrical cage for withdrawing additional trash from said whirling up fibrous material as said fibrous material is transported on said cylindrical cage.

An apparatus for removing impurities from fibrous material such as cotton, comprising:

• a first clothed driven roller;
• means for feeding said fibrous material to be cleaned to said first clothed roller;
• a second clothed driven roller following said first clothed roller in fiber transfer relation with said first clothed roller;
• a rotating cylindrical cage;
• air stream means for supplying said fiber material from said second clothed roller to said rotating cylindrical cage;
• a housing closely surrounding said first and second clothed rollers;
• an opening provided in said housing adjacent said first clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said first clothed roller;
• an opening provided in said housing adjacent said second clothed roller through which impurities are expelled from said fibrous material as said fibrous material is transported by said second clothed roller;
• said second clothed roller cooperating with said first clothed roller as a delivery and opening roller for said fibrous material;
• said first and second clothed rollers being driven so that the centrifugal forces at the periphery of said second clothed roller are greater than at said first clothed roller,;
• a fiber takeoff means associated with said rotating cylindrical cage, and
• an air blast duct disposed in the region of said fiber takeoff means for directing a flow of air outwardly through said cylindrical cage for aiding in removing the fibrous material therefrom.