Weft end extractor

Claim 1

IN A WEFT FILLING MECHANISM FOR AN AUTOMATIC PIRN CHANGING MECHANISM OF A COP CHANGING, AN AUTOMATIC LOOM WHICH COMPRISES A WEFT PIN STORING AND FEEDING MEANS FOR FEEDING WEFT PIRNS ONE AT A TIME TO A PREDETERMINED POSITION, ARRESTING AND HOLDING MEMBERS FOR POSITIONING AND HOLDING EACH SAID PIRN AT THE SAID PREDETERMINED POSITION, AND A MECHANISM FOR POSITIVELY DRAWING OUT AND HOLDING THE YARN END OF THE SAID PIRN POSITIONED IN THE SAID PREDETERMINED POSITION; THE CONSTRUCTION OF SAID MECHANISM FOR POSITIVELY DRAWING OUT AND HOLDING THE YARN END OF THE SAID PIRN COMPRISING AN ENDLESS, CONTINUOUSLY TRAVELLING BRUSH IN THE FORM OF AN ENDLESS BELT SUPPORTED ON A DRIVING ROLL AND A TENSION ROLL, SAID BRUSH BEING DISPOSED IN THE VICINITY OF SAID PIRN POSITIONED IN THE SAID PREDETERMINED POSITION TO BRUSH THE CONSTRICTED END OF THE SAID POSITIONED PIRN TO DRAW OUT THE YARN END OF THE PIRN AND TO HOLD THE SAME, A PIN CYLINDER WHICH IS PROVIDED WITH A LARGE NUMBER OF OUTWARDLY POINTED PINS SLIDABLY SUPPORTED IN INDIVIDUAL PIN HOLES IN THE CYLINDRICAL WALL OF THE SAID CYLINDER AND DISPOSED IN THE PROXIMITY OF THE SAID TRAVELLING BRUSH ON THE SIDE OPPOSITE THAT OF THE SAID POSITIONED PIRN, THE AXIS OF ROTATION OF SAID CYLINDER BEING SUBSTANTIALLY PARALLEL TO THE DIRECTION OF THE MOTION OF SAID BRUSH, AND A DEVICE FOR CAUSING THE PROTRUSION OF THE SAID PINS WHEN THEY APPROACH THE SAID ENDLESS BRUSH AND RETRACTION OF THE SAID PINS WHEN THEY GO AWAY FROM THE SAID ENDLESS BRUSH, POSITION OF SAID PROTRUSION OF THE PIN IS SELECTED TO CLAW OFF ANY CUT YARN ENDS CLINGING TO THE SAID BRUSH.