Method and apparatus for doffing and straightening fibers during combing and spinning thereof

Claim 1

AN APPARATUS FOR DOFFING AND STRAIGHTENING FIBERS DURING COMBING AND SPINNING THEREOF COMPRISING, IN COMBINATION, WALL MEANS DEFINING A SPINNING CHAMBER HAVING AN AXIS AND BEING ROTATABLE ABOUT SAID AXIS, SAID SPINNING CHAMBER HAVING AN OPEN END AND A COLLECTING SURFACE FACING SAID OPEN END; CLOSURE MEANS CLOSING SAID OPEN END OF SAID SPINNING CHAMBER; A COMBING ROLLER HAVING FIBER ENGAGING PROJECTIONS ON THE OUTER PERIPHERY THEREOF, SAID COMBING ROLLER BEING ROTATABLE ABOUT ITS AXIS; CHANNEL MEANS ARRANGED ADJACENT A PERIPHERAL PORTION OF SAID PROJECT AT LEAST PARTLY INTO THE CHANNEL MEANS, SAID CHANNEL MEANS HAVING AN OUTER END COMMUNICATING WITH THE ATMOSPHERE AND AN INNER END PASSING THROUGH SAID CLOSURE MEANS AND COMMUNICATING WITH THE INTERIOR OF SAID SPINNING CHAMBER; MEANS COOPERATING WITH SAID SPINNING CHAMBER TO CREATE AN UNDERPRESSURE IN THE LATTER TO PRODUCE THEREBY SUCTION CREATING AN AIR STREAM PASSING FROM SAID OUTER END OF SAID PASSAGE MEANS THROUGH THE LATTER; MEANS FOR FEEDING SLIVERS TO BE SPUN INTO ENGAGEMENT WITH SAID PROJECTIONS OF THE COMBING ROLLER AT A PORTION OF THE LATTER SPACED FROM SAID CHANNEL MEANS; AND MEANS FOR WITHDRAWING SPUN FIBERS FROM SAID COLLECTING SURFACE OF SAID SPINNING CHAMBER.