Method of continuous flat metal casting with the forward mold stroke and pinch roll speed synchronized with the speed of the forward speed of molten metal

Claim 1

METHOD OF CONTINUOUS CASTING OF FLAT PRODUCTS FROM MOLTEN STEEL WITH A HIGH WIDTH TO THICKNESS RATIO, WHICH COMPRISES CONTINUOUSLY RECIPROCATING AN OPEN TOP INCLINED FLAT MOLD SURFACE WHILE CONTINUOUSLY COOLING THE SAME FROM THE UNDERSIDE THEREOF CONTINUOUSLY POURING MOLTEN STEEL FROM A FIXED POSITION TUNDISH ONTO THE UPPER SIDE OF AN INITIAL ZONE OF SAID MOLD SURFACE TO SPREAD LATERALLY AND FORWARDLY WITH A FREE UPPER SURFACE, CONFINING THE LATERAL SPREAD OF SAID MOLTEN STEEL TO PROVIDE A STREAM OF UNIFORM WIDTH, THE FORWARD SPREAD OVER AN INTERMEDIATE ZONE OF THE COOLED SURFACE CHILLING THE STEEL TO A PLASTIC STATE, CONFINING THE FREE SURFACE OF SAID PLASTIC STEEL TO PROVIDE A STREAM OF UNIFORM DEPTH, AND PASSING SAID UNIFORM DEPTH PLASTIC STEEL IS CHILLED TO A COOLED SURFACE WHERE SAID PLASTIC STEEL IS CHILLED TO A SOLID STATE AND DELIVERED THEREFROM TO PINCH TAKE-OUT ROLLS DOWNSTREAM THEREOF, THE FORWARD STROKE OF SAID RECIPROCATION BEING AT THE SPEED OF THE PINCH ROLL SPEED WHICH IN TURN IS SYNCHRONIZED WITH THE SPEED OF THE FORWARD SPREAD OF SAID MOLTEN STEEL AS IT CONTACTS THE INITIAL ZONE OF SAID MOLD SURFACE AND THE RETURN STROKE IS AT A FASTER RATE IN ORDER TO MAINTAIN THE FORWARD METAL FLOW.