Sheet cutting machine

Claim 1

IN A MACHINE FOR CUTTING SHEETS OF METAL OR THE LIKE, IN COMBINATION, PUNCH PRESS MEANS FOR CUTTING A WORK SHEET, SAID PUNCH PRESS MEANS INCLUDING UPPER AND LOWER SUBSTANTIALLY HORIZONTAL ARMS SPACED FROM EACH OTHER AND A RECIPROCABLE PUNCH CARRIER AND A DIE CARRIER RESPECTIVELY LOCATED AT ADJACENT FRONT ENDS OF AND CARRIED BY SAID UPPER AND LOWER ARMS; FIRST CARRIAGE MEANS SUPPORTED ON AND LONGITUDINALLY MOVABLE ALONG SAID UPPER ARM TOWARD AND AWAY FROM SAID PUNCH CARRIER AND LOCATED AT LEAST IN PART BETWEEN SAID UPPER AND LOWER ARMS; MEANS COOPERATING WITH SAID FIRST CARRIAGE MEANS AND UPPER ARM FOR RELEASABLY FIXING SAID FIRST CARRIAGE MEANS TO SAID UPPER ARM; SECOND CARRIAGE MEANS CARRIED BY SAID FIRST CARRIAGE MEANS BETWEEN SAID UPPER AND LOWER ARMS FOR MOVEMENT TRANSVERSELY OF SAID ARMS; MEANS COOPERATING WITH SAID SECOND AND FIRST CARRIAGE MEANS FOR RELEASABLY FIXING SAID SECOND CARRIAGE MEANS TO SAID FIRST CARRIAGE MEANS; AND WORK HOLDING MEANS CARRIED BY SAID SECOND CARRIAGE MEANS FOR HOLDING A WORK SHEET IN A GIVEN PLANE WHILE IT IS ACTED UPON BY SAID PUNCH PRESS MEANS AND SAID FIRST AND SECOND CARRIAGE MEANS BEING CAPABLE OF MOVING SAID WORK SHEET IN ANY DIRECTION IN SAID PLANE.