Manufacture of composite yarn

Claim 1

APPARATUS FOR MANUFACTURING A COMPOSITE YARN, COMPRISING MEANS INCLUDING A FIRST PAIR OF ROLLS DRIVEN AT A GIVEN SURFACE SPEED AND A SECOND PAIR OR ROLLS DRIVEN AT A GREATER SURFACE SPEED, THE FIRST AND SECOND PAIRS OF ROLLS EFFECTIVE TOGETHER TO EXTEND AN IRREVERSELY EXTENSIBLE STRAND TO INCREASED LENGTH, MEANS INCLUDING A THIRD PAIR OF ROLLS DRIVEN AT A GIVEN INTERMEDIATE SURFACE SPEED, SAID THIRD PAIR OF ROLLS BEING OF SMALLER DIAMETER THAN THE ROLLS OF SAID SECOND PAIR OF ROLLS, ONE ROLL OF SAID THIRD PAIR BEING PROVIDED WITH A DRIVE WHEEL AFFIXED AT ONE OF ITS ENDS, SAID WHEEL HAVING A DIAMETER GREATER THAN THAT OF THE ROLL, A DRIVING MEMBER ATTACHED ON THE CIRCUMFERENCE OF SAID WHEEL, SAID DRIVING MEMBER BEING IN ENGAGEMENT WITH A ROLL OF SAID SECOND PAIR OF ROLLS FOR BEING DRIVEN THEREBY, THE OTHER ROLL OF SAID THIRD PAIR OF ROLLS BEING DRIVEN BY YARN PASSING IN DRIVING CONTACT FROM THE ONE ROLL TO THE OTHER ROLL OF SAID THIRD PAIR, SAID DRIVING MEMBER, DRIVE WHEEL AND ROLL OF SAID SECOND PAIR OF ROLLS BEING EFFECTIVE TO DRIVE SAID THIRD PAIR OF ROLLS AT SAID INTERMEDIATE SURFACE SPEED, THE THIRD AND SECOND PAIRS OF ROLLS BEING EFFECTIVE TOGETHER TO EXTEND A REVERSIBLY EXTENSIBLE STRAND TO INCREASED LENGTH, SAID SECOND PAIR OF ROLLS ALSO BEING EFFECTIVE FOR COMBINING THE STRANDS AT THEIR RESPECTIVE INCREASED LENGTH BY PLACING THEM IN TWISTED ENGAGEMENT WITH ONE ANOTHER ALONG ESSENTIALLY THE ENTIRE LENGTH OF EACH.