High speed cotton draw frame

Claim 1

HIGH SPEED COTTON DRAW FRAME COMPRISING DRAFTING MEANS INCLUDING A SERIES OF GROUPS OF INTERENGAGING UPPER AND LOWER DRAFT ROLLS AND A PAIR OF INTERENGAGING SMOOTH METAL SURFACED CRUSH ROLLS SO AS TO CONSTITUTE SUCCESSIVE NIPS, MEANS FOR ROTATING THE ROLLS FOR FORWARDING A PLURALITY OF CARDED COTTON SILVERS THROUGH SAID NIPS FROM THE ENTRANCE END TO THE DELIVERY END OF THE DRAFTING APPARATUS, SUCCESSIVE GROUPS OF UPPER AND LOWER DRAFT ROLLS RUNNING AT INCREASED CIRCUMFERENTIAL SPEEDS RELATIVE TO THE PRECEDING GROUP OF ROLLS SO AS TO ATTENUATE THE SILVERS AND FORM THEM INTO A WEB, THE PAIR OF CRUSH ROLLS BEING SITUATED AT THE DELIVERY END OF THE DRAFTING MEANS AND RECEIVING THE WEB, PRESSURE MEANS FOR CAUSING PRESSURE BETWEEN THE ROLLS OF EACH GROUP OF DRAFT ROLLS AND BETWEEN THE PAIR OF CRUSH ROLLS, THE PRESSURE BETWEEN THE PAIR OF CRUSH ROLLS BEING SELECTED TO CRUSH AND DISINTEGRATE SEEDS, LEAVES AND OTHER IMPURITIES ENTRAINED IN THE WEB PASSING THROUGH THE NIP OF THE CRUSH ROLLS, THE LOWER CRUSH ROLL BEING IN SURFACE CONTACT WITH THE LAST DRAFT ROLL IN THE SEQUENCE OF GROUPS OF DRAFT ROLLS AND PRESSURE MEANS CAUSING PRESSURE BETWEEN THE LOWER CRUSH ROLL AND SAID LAST DRAF ROLL.