Synchronizing twin cut-off mechanism

Claim 1

IN A MACHINE OF THE CLASS DESCRIBED, A FRAME PROVIDING TRACKWAY MEANS, MEANS FOR TRANSPORTING MATERIAL THROUGH SAID MACHINE IN LINE WITH THE TRACKWAY MEANS, A FIRST CARRIAGE MOUNTED FOR RECIPROCATION ALONG SAID TRACKWAY MEANS, A TOOL SUPPORTED FROM SAID FIRST CARRIAGE FOR MOVEMENT INTO AND OUT OF COACTIVE ENGAGEMENT WITH MATERIAL MOVING THROUGH SAID MACHINE, A FIRST FLUID MOTOR FOR SO RECIPROCATING SAID FIRST CARRIAGE, AN AUXILIARY FRAME MOUNTED FOR RECIPROCATION ALONG SAID TRACKWAY MEANS, MOTORS MEANS MOUNTED ON SAID AUXILIARY FRAME FOR DRIVING SAID AUXILIARY FRAME ALONG SAID TRACKWAY MEANS TOWARD AND AWAY FROM SAID FIRST CARRIAGE, A SECOND CARRIAGE MOUNTED FOR RECIPROCATION ALONG SAID TRACKWAY MEANS, A TOOL SUPPORTED FROM SAID SECOND CARRIAGE FOR MOVEMENT INTO AND OUT OF COACTIVE ENGAGEMENT WITH MATERIAL MOVING THROUGH SAID MACHINE, A SECOND FLUID MOTOR COMPRISING A PISTON ELEMENT AND A CYLINDER ELEMENT, ONE OF SAID ELEMENTS BEING SECURED TO SAID AUXILIARY FRAME AND THE OTHER ELEMENT BEING CONNECTED TO SAID SECOND CARRIAGE WHEREBY SAID SECOND CARRIAGE IS CONNECTED TO MOVE WITH SAID AUXILIARY FRAME, SAID SECOND FLUID MOTOR BEING OPERABLE TO RECIPROCATE SAID SECOND CARRIAGE ALONG SAID TRACKWAY MEANS RELATIVE TO SAID AUXILIARY FRAME, A FIRST SHAFT JOURNALLED IN SAID FIRST-NAMED FRAME, MEANS PROVIDING A DRIVING CONNECTION BETWEEN SAID FIRST CARRIAGE AND SAID FIRST SHAFT TO ROTATE SAID FIRST SHAFT IN A DIRECTION AND AT A VELOCITY CORRESPONDING TO THE DIRECTION AND VELOCITY OF MOVEMENT OF SAID FIRST CARRIAGE UNDER THE INFLUENCE OF SAID FIRST FLUID MOTOR, A SECOND SHAFT JOURNALLED IN SAID AUXILIARY FRAME, MEANS PROVIDING A DRIVING CONNECTION BETWEEN SAID SECOND CARRIAGE AND SAID SECOND SHAFT TO ROTATE SAID SECOND SHAFT IN A DIRECTION AND AT A VELOCITY CORRESPONDING TO THE DIRECTION AND VELOCITY OF MOVEMENT OF SAID SECOND CARRIAGE UNDER THE INFLUENCE OF SAID SECOND FLUID MOTOR, ROTARY MEANS CONSTANTLY DRIVEN AT A VELOCITY PROPORTIONAL TO THE VELOCITY OF SAID MATERIAL-TRANSPORTING MEANS, AND MEANS FOR EACH SHAFT DOMINATED BY SAID ROTARY MEANS AND EFFECTIVE TO RESTRAIN ROTATION OF ITS ASSOCIATED SHAFT, IN A DIRECTION CORRESPONDING TO MOVEMENT OF ITS ASSOCIATED CARRIAGE IN THE DIRECTION OF MATERIAL MOVEMENT, TO A VELOCITY CORRESPONDING TO CARRIAGE MOVEMENT EQUAL TO THE VELOCITY OF SUCH MATERIAL MOVEMENT.