Method and apparatus for twisting yarn

Claim 1

AN APPARATUS FOR FEEDING, TWISTING AND WINDING YARN COMPRISING: (A) A BOBBIN SUPPORTED FOR ROTATION AND HAVING A ROTATIONAL AXIAL BORE, (B) MEANS FOR SIMULTANEOUSLY FEEDING AT THE SAME PREDETERMINED RATE TWO ENDS OF YARN FROM A SUPPLY SOURCE, (C) MEANS FOR ROTATING SAID BOBBIN AT A PREDETERMINED R.P.M. TO IMPART A PERIPHERAL RATE OF SPEED TO THE BOBBIN IN TIMED RELATION TO AND GREATER THAN SAID FEEDING RATE, (D) MEANS FOR WHIRLING BOTH ENDS OF YARN ABOUT SAID BOBBIN IMPARTING A TWIST TO SAID ENDS OF YARN IN COMPENSATING FOR SAID DIFFERENCES BETWEEN THE FEEDING AND PERIPHERAL RATES, (E) MEANS FOR GUIDING ONE OF SAID ENDS OF YARN IN A RELATIVELY DIRECT PATH FROM SAID FEEDING MEANS TO SAID WHIRLING MEANS AND ONTO THE BOBBIN AND FOR GUIDING THE OTHER OF SAID ENDS OF YARN IN A PATH FROM SAID FEEDING MEANS THROUGH SAID BOBBIN AXIAL BORE ALONG ITS AXIAL OF ROTATION TO SAID WHIRLING MEANS AND ONTO THE BOBBIN IN PARALLEL RELATION TO SAID FIRST END OF YARN WHEREBY ONE OF SAID ENDS OF YARN HAS Z TWIST AND THE OTHER S TWIST.