Apparatus for false twist crimping synthetic fibers for producing a woollike appearance

Claim 1

IN AN APPARATUS FOR MAKING CRIMPED SYNTHETIC FIBERS OF WOOL-LIKE APPEARANCE HAVING FIRST BOBBIN MEANS FOR WINDING THE PRETENSIONED AND MOISTENED THREAD THEREON, FALSE-TWIST MECHANISM ARRANGED CONSECUTIVELY TO SAID FIRST BOBBIN MEANS FOR IMPARTING TO THE THREAD A FALSE TWIST OF AT LEAST 1,500 TURNS PER METER, SAID MECHANISM COMPRISING A THREAD-BRAKING ARRANGEMENT INCLUDING A TUBE AND A FIRST PLATE THEREON SO AS TO GIVE THE TUBE THE APPEARANCE OF A MUSHROOM, SAID FIRST PLATE HAVING AT LEAST ONE OPENING CAPABLE OF RECEIVING THE THREAD AND CAUSING A BRAKING OF THE SAME AS IT PASSES THE EDGE, MEANS FOR CONVEYING THE THREAD FROM SAID BOBBIN MEANS TO SAID FALSE-TWIST MECHANISM, HEATER MEANS ARRANGED IN THE PATH OF THE THREAD BETWEEN SAID BOBBIN MEANS AND SAID FALSE-TWIST MECHANISM IN TIMED RELATIONSHIP THEREBETWEEN, COOLING MEANS DISPOSED ADJACENT THE PATH OF THE THREAD BETWEEN SAID HEATER MEANS AND SAID FALSE TWIST MEANS FOR COOLING THE THREAD, AND SECOND BOBBIN MEANS ARRANGED CONSECUTIVELY TO, AND CO-ACTING WITH, SAID FALSE-TWIST MECHANISM FOR WINDING THE THREAD ON THE FORMER, THE IMPROVEMENT WHICH COMPRISES ARRANGING A SECOND PLATE ABOVE SAID FIRST PLATE, SAID SECOND PLATE BEING WEIGHTED IN ORDER TO BRAKE THE THREAD.