Device for preventing double threads in automatic coil winding machines

Claim 1

IN A YARN-COIL WINDING MACHINE HAVING FIRST MEANS FOR ACCOMMODATING A YARN SUPPLY, SECOND MEANS FOR HOLDING A TAKE-UP SPOOL TO RECEIVE A YARN PACKAGE BEING WOUND, A KNOTTER LOCATED BETWEEN AND SPACED FROM SAID FIRST AND SECOND MEANS, AND A YARN-END SEEKER MEMBER FOR USUALLY SEIZING A YARN END COMING FROM ONE OF SAID RESPECTIVE MEANS AND PASSING IT ALONG A SPECIFIC PATH TO SAID KNOTTER, THE COMBINATION OF A DEVICE FOR PREVENTING THE KNOTTING OF DOUBLE YARNS IN THE EVENT OF LOOP FORMATION AT THE YARN-END SEIZING LOCATION OF SAID SEEKER MEMBER, SAID DEVICE COMPRISING DEFLECTOR STRUCTURE PROTRUDING INTO THE BIGHT ANGLE OF THE YARN-END LOOP BETWEEN FIRST AND SECOND PORTIONS OF THE LOOP, THE FIRST PORTION OF THE LOOP EXTENDING ALONG SAID SPECIFIC PATH TO SAID KNOTTER, SAID DEFLECTOR STRUCTURE BEING ENGAGEABLE WITH THE SECOND PORTION OF THE LOOP TO DIVERT THE SAME FROM SAID SPECIFIC PATH AND HOLD IT AWAY FROM SAID KNOTTER, WHEREBY ONLY THE FIRST PORTION OF THE LOOP IS KNOTTED.