Crimping apparatus

Claim 1

APPARATUS FOR CRIMPING YARN COMPRISING MEANS FORMING AN ELONGATED CRIMPING CHAMBER, AND FEED MEANS DISPOSED TO FEED SAID YARN INTO ONE END OF SAID CHAMBER FOR CRIMPING AGAINST A MASS OF PREVIOUSLY CRIMPED YARN HELD COMPACT IN SAID CHAMBER, SAID FEED MEANS COMPRISING A DRIVEN ROLL HAVING A PERIPHERAL SURFACE AND MEANS INCLUDING A FIXED MEMBER HAVING AN ARCUATE SURFACE DISPOSED TO HOLD SAID YARN IN FEEDING RELATIONSHIP TO SAID PERIPHERAL SURFACE, SAID CRIMPING CHAMBER HAVING A WALL FORMING A CONTINUATION OF SAID ARCUATE SURFACE AND SPACED FROM THE PERIPHERY OF SAID ROLL TO FORM A BITE THEREBETWEEN FROM WHICH THE YARN IS FED INTO SAID CRIMPING CHAMBER AND HAVING SIDE WALLS FORMING WITH SAID LAST WALL AND WITH THE PERIPHERY OF SAID ROLL A CONFINED CHAMBER FOR SAID YARN, AND MEANS DISCHARGING THE CRIMPED YARN FROM THE OTHER END OF SAID CRIMPING CHAMBER, SAID CRIMPING CHAMBER BEING FORMED BY A FIXED MEMBER HAVING A CHANNEL-SHAPED GROOVE AT ONE EDGE ADAPTED TO FORM THREE SIDE WALLS OF SAID CHAMBER, AND A SECOND MEMBER ADAPTED TO SLIDABLY FIT WITHIN SAID GROOVE AND ADJUSTABLE TRANSVERSELY THEREOF TO FORM THE FOURTH WALL OF SAID CHAMBER.