Method and means for removing impurities from a continuous web of textile fibres

Abstract

Abstract VEGETABLE AND OTHER UNDESIRABLE MATTER (E.G., BURR, SEED AND SHIVE IN THE CASE OF WOOL) IS REMOVED FROM A CONTINUOUS WEB OF PARALLELISED TEXTILE FIBRES BY THE STEPS OF (A) FEEDING THE SAID WEB MATERIAL CONTINUOUSLY THROUGH A DABBING ZONE IN WHICH THE MATERIAL IS NIPPED AT TWO POSITIONS, (B) SUBJECTING THE MOVING MATERIAL BETWEEN SAID TWO POSITIONS TO A RAPID DABBING OPERATION BY WHICH A SERIES OF CLOSELY SPACED PINS PENETRATE THE MATERIAL SUFFICIENTLY TO PUSH SAID BURRS OR OTHER LARGER IMPURITIES TO ONE SURFACE THEREOF, THEN (C) FEEDING THE MATERIAL TO A STRIPPING ZONE IN WHICH IT IS CARRIED ROUND A SHARPLY CURVED SUPPORT WITH THE IMPURITY-CARRYING SURFACE OUTERMOST SO AS TO CAUSE SAID IMPURITIES TO PROJECT FROM SAID SURFACE, AND (D) REMOVING THE BURRS OR OTHER LARGE IMPURITIES BY A STRIPPING ACTION TAKING PLACE CLOSE TO SAID SURFACE AND IN A PLANE SUBSTANTIALLY TENGENTIAL TO THE PATH OF THE MATERIAL. PREFERABLY, THE DISTANCE BETWEEN SAID TWO NIPPING POSITIONS IS NO GREATER THAN THE MEAN FIBRE LENGTH OF THE MATERIAL, SAID NIPS ARE PROVIDED BY TWO SETS OF THREE ROLLERS EACH SAID STRIPPING IS DONE BY ROTARY BEATER HAVING LONGITUDINALLY FLUTES COOPERATING WITH SAID SUPPORT. TO REMOVE DOUBLE CUTS OR TUFTS FROM WOOL OR OTHER FIBRES THE MATERIAL IS CARRIED ROUND A FURTHER SHARPLY CURVED SUPPORT WITH ITS TUFT-CARRYING SURFACE OUTERMOST AND TREATED BY A ROTARY PINNED DEVICE COOPERATING WITH SAID FURTHER SUPPORT.

Inventors

• 👤 Donald Walker
• 👤 Michael John Walker

Bibliographic Details