Apparatus for crushing impurities in cotton card webs and the like

Claim 1

THE COMBINATION WITH A CARDING ENGINE HAVING A DOFFER AND MEANS TO DELIVER FROM THE DOFFER A MOVING WEB OF CARDED FIBERS, OF (A) UPPER AND LOWER COOPERATING DRIVEN WEB CRUSHING ROLLS BETWEEN WHICH THE WEB IS DELIVERED FROM THE DOFFER, SAID UPPER ROLL HAVING END SHAFTS, (B) WEIGHTING MEANS FOR THE UPPER ROLL EMBODYING: (1) ROLL CARRYING ARMS IN WHICH THE END SHAFTS OF THE UPPER ROLL ARE JOURNALED AND HAVING OUTER ENDS EXTENDING AWAY FROM THE LONGITUDINAL AXIS OF THE UPPER ROLL, (2) PIVOTS ON WHICH SAID ARMS ARE MOUNTED AND LATERALLY SPACED FROM THE LONGITUDINAL AXIS OF SAID UPPER ROLL, (3) WEIGHT ARMS DISPOSED FOR COOPERATION WITH THE OUTER ENDS OF EACH OF THE UPPER ROLL CARRYING ARMS AND HAVING ENDS PIVOTALLY MOUNTED ADJACENT SAID OUTER ENDS OF THE UPPER ROLL CARRYING ARMS, (4) WEIGHTS ON ON EACH OF THE WEIGHT CARRYING ARMS, (5) KNIFE-EDGE MEMBERS ON THE OUTER ENDS OF THE UPPER ROLL CARRYING ARMS, AND (6) SEATS ON THE WEIGHT CARRYING ARMS ADJACENT THE PIVOTED ENDS THEREOF FOR RECEIVING THE KNIFEEDGES OF SAID MEMBERS, WHEREBY THE WEIGHT CARRYING ARMS PRESS THE UPPER ROLL INTO CONTACT WITH THE LOWER ROLL THROUGH SAID KNIFE-EDGE MEMBERS.