Method and apparatus for forming yarn

Claim 1

APPARATUS FOR PRODUCING A CORE YARN COMPRISING: A RING SPINNING FRAME HAVING A ROVING CREEL, DRAWING ROLLS INCLUDING FRONT DRAWING ROLLS, A SPINDLE AND A RING AND TRAVELER; A SUPPORT FOR A SUPPLY OF CONTINUOUS FILAMENT YARN; YARN GUIDE MEANS INDEPENDENT OF SAID DRAWING ROLLS AND DISPOSED IMMEDIATELY ADJACENT SAID FRONT DRAWING ROLLS FOR GUIDING THE CONTINUOUS FILAMENT YARN FROM SAID SUPPLY THEREOF TO A POSITION BETWEEN THE FRONT DRAWING ROLLS IN IN LONGITUDINAL ALIGNMENT WITH THE CENTER LINE OF THE RIBBON OF STAPLE FIBERS PASSING BETWEEN SAID FRONT DRAWING ROLLS; TENSIONING MEANS FOR MAINTAINING THE CONTINUOUS FILAMENT UNDER A PREDETERMINED TENSION AS IT IS INTRODUCED BETWEEN SAID FRONT DRAWING ROLLS; A BOBBIN ON SAID SPINDLE FOR RECEIVING SAID CONTINUOUS FILAMENT YARN AND SAID STAPLE FIBERS AFTER THEY HAVE EMERGED FROM SAID FRONT DRAWING ROLLS; AND MEANS INCLUDING SAID SPINDLE FOR ROTATING SAID BOBBIN AT A SPEED FAR IN EXCESS OF THE SPEED OF ROTATION OF SAID FRONT ROLLS WHEREBY SAID CONTINUOUS FILAMENT YARN AND SAID STAPLE FIBERS ARE BOTH MAINTAINED UNDER RELATIVELY HIGH TENSION AS THEY PASS FROM SAID FRONT ROLLS TO SAID BOBBIN AND WHILE SAID STAPLE FIBERS ARE THUS SPUN ABOUT SAID FILAMENT YARN.