Machine for cutting and/or creasing sheets of thin materials such as paper and cardboard and metal or plastic foils

Claim 1

A MACHINE FOR SELECTIVELY CUTTING AND CREASING INDIVIDUAL SHEETS OF THIN MATERIAL ONE AT A TIME COMPRISING A FRAME, A TOOL HOLDER UNIT AND A DIE-BLOCK UNIT A PAIR OF ECCENTRIC SHAFTS FOR EACH OF SAID UNITS, MEANS ROTATABLY MOUNTING SAID ECCENTRIV SHAFTS IN SAID FRAME, MEANS MOUNTING EACH OF SAID UNITS ON A RESPECTIVE PAIR OF SAID SHAFTS, DRIVE MEANS FOR DRIVING SAID ECCENTRIC SHAFTS IN OPPOSITE DIRECTIONS FOR MOVING SAID UNITS IN OPPOSITE DIRECTIONS INTO POSITIONS TOWARD AND AWAY FROM EACH OTHER, CONVEYING MEANS FOR MOVING INDIVIDUAL SHEETS FROM A STACKED PILE BETWEEN SAID UNITS AND THEN TO A FINISHED PILE, BRACKET MEANS ADJACENT ONE SIDE OF SAID FRAME FOR STACKING A PILE OF SHEETS THEREON TO BE SUPPLIED TO SAID CONVEYING MEANS, OTHER BRACKET MEANS ADJACENT THE OTHER SIDE OF SAID FRAME FOR RECEIVING FINISHED SHEETS FROM SAID CONVEYOR MEANS, CONVEYOR DRIVE MEANS OPERATIVELY CONNECTED TO SAID CONVEYOR MEANS CONTINUOSLY DRIVING SAID CONVEYING MEANS DURING THE ROTATION OF SAID ECCENTRIC SHAFTS SO THE SPEED OF SAID CONVEYING MEANS IS AT A MINIMUM WHEN SAID UNITS ARE IN SAID POSITION TOWARDS EACH OTHER AND AT A MAXIMUM SPEED WHEN SAID UNITS ARE IN SAID POSITION AWAY FROM EACH OTHER, SAID CONVEYING MEANS BEING IN THE FORM OF AN ENDLESS CONVEYOR HAVING SPACED SHEET GRIPPING MEANS THEREON FOR PULLING INDIVIDUAL SHEETS, SAID UNITS HAVING SHEET ENGAGING SURFACES CORRESPONDING IN SIZE GENERALLY TO SHEETS TO BE OPERATED ON BY SAID UNITS, AND SAID CONVEYOR DRIVE MEANS DRIVING SAID ENDLESS CONVEYOR A DISTANCE EQUAL TO THE SPACING OF SAID SHEET GRIPPING MEANS WHEREBY A SHEET IS PRESENTED TO SAID UNITS FOR EACH CYCLE OF OPERATION OF SAID UNITS.