Blank cutting device

Claim 1

IN A MACHINE FOR CUTTING BLANKS TO A PREDETERMINED CONFIGURATION, MEANS FOR DIRECTING BLANKS ONE AFTER THE OTHER THROUGH THE MACHINE, SUPPORT MEANS INCLUDING A PAIR OF SIDE FRAME MEANS AND A MEMBER EXTENDING BETWEEN SAID PAIR OF SIDE FRAME MEANS, SAID SIDE FRAME MEANS HAVING FORMED OPENINGS THEREIN, DRIVE MEANS, A PLURALITY OF CUTTING UNITS EACH INCLUDING A HOUSING AND A PAIR OF ROTARY CUTTING ASSEMBLIES CARRIED BY SAID HOUSING AND COOPERATING WITH EACH OTHER TO CUT AWAY A PORTION OF EACH BLANK AS IT PASSES THROUGH THE MACHINE, SAID OR EACH CUTTING UNIT BEING OPERATIVELY AND REMOVABLY CONNECTED TO SAID DRIVE MEANS, AND MEANS REMOVABLY CONNECTING SAID UNITS TO SAID MEMBER TO BE SUPPORTED THEREBY AND FOR SELECTIVE REMOVAL THEREFROM BY DISPLACING SAID UNITS TOWARD THE CENTER OF SAID MACHINE WHEN ANY ONE OF SAID UNITS REQUIRES SHARPENING, SO THAT WHEN ONE UNIT IS REMOVED IT CAN BE REPLACED BY AN IDENTICAL UNIT TO ENABLE THE OPERATION OF THE MACHINE TO CONTINUE.