Striping attachment for a carding head for a pile fabric knitting machine

Claim 1

IN A PILE FABRIC KNITTING MACHINE HAVING AT LEAST ONE CARDING HEAD POSITIONED ADJACENT THE NEEDLE CIRCLE FOR FEEDING SLIVER TO THE NEEDLES, SAID CARDING HEAD HAVING AT LEAST ONE PAIR OF MAINL FEED ROLLS, MEANS FOR CONTINUOUSLY DRIVING THE MAIN FEED ROLLS AT A SELECTED SPEED TO DELIVER A BASE SLIVER TO THE NEEDLES AND A PAIR OF AUXILIARY FEED ROLLS FOR DELIVERY OF AN AUXILIARY SLIVER TO THE NEEDLES, THEE COMBINATION INCLUDING: (A) A ROTATABLE CONTROL CAM FOR AUXILIARY FEED ROLLS, (B) DRIVE MEANS FOR ROTATING THE CONTROL CAM, CONNECTED TO AND ACTUATED BY THE MAIN FEED ROLLS, (C) A VARIABLE SPEED ELECTRIC MOTOR CONNECTED TO THE AUXILIARY FEED ROLLS TO IMPART ROTARY MOVEMENT THERETO, (D) ELECTRIC CURRENT SUPPLY MEANS FOR THE MOTOR AND (E) CAM FOLLOWER MEANS RESPONSIVE TO THE ROTATION OF THE CONTROLL CAM AND OPERATIVE TO CONTROL THE AMOUNT OF ELECTRIC CURRENT SUPPLIED TO THE MOTOR TO CAUSE THE AUXILIARY FEED ROLLS TO DELIVER AUXILIARY SLIVER AT SELECTIVELY VARIABLE RATES.