Programming device for roll feed brake

Claim 1

IN A MACHINE OF THE CLASS DESCRIBED, THE COMBINATION WITH A FEED ROLL DRIVE SHAFT, OF A RECIPROCATING RACK AND CONNECTIONS BETWEEN THE RACK AND THE DRIVE SHAFT WHEREBY THE DRIVE SHAFT IS ROTATED INTERMITTENTLY, THE IMPROVEMENT WHICH INCLUDES A BRAKE DEVICE IN ASSOCIATED RELATION WITH THE FEED ROLL DRIVE SHAFT, SAID BRAKE DEVICE INCLUDING A CENTER BRAKE DISC FIXED TO ROTATE WITH THE FEED ROLL DRIVE SHAFT, A NON-ROTATABLE PRESSURE PLATE ON EACH SIDE OF THE CENTER BRAKE DISC AND MOUNTED FOR AXIAL MOVEMENT TO AND FROM THE BRAKE DISC, MEANS NORMALLY MAINTAINING THE PRESSURE PLATES OUT OF FRICTIONAL CONTACT WITH THE CENTER BRAKE DISC, CAMMING MECHANISM INCLUDING A HUB MEMBER OPERATIVELY CONNECTED TO ONE PRESSURE PLATE AND JOURNALLING A CAM RING, A SECOND CAM RING FIXED TO THE OTHER PRESSURE PLATE, CAMMING BALLS BETWEEN THE SAID CAM RINGS AND HAVING CONTACT THEREWITH, A LEVER ARM FIXED TO THE JOURNALLED CAM RING FOR ROTATING THE SAME RELATIVE TO THE OTHER CAM RING WHEREBY TO CAUSE THE CAM RINGS TO SEPARATE AND EFFECT MOVEMENT OF EACH PRESSURE PLATE TOWARDS THE OTHER FOR FRICTIONALLY ENGAGING THE CENTER BRAKE DISC, A PROGRAMMING CAM HAVING ROTATION IN TIMED RELATION WITH THE RECIPROCATING MOVEMENTS OF THE RACK, AND AN ACTUATING ROD OPERATIVELY CONNECTING THE PROGRAMMING CAM WITH SAID LEVER ARM FOR EFFECTING OSCILLATING MOVEMENT OF THE LEVER ARM.