Patent ID: 7464745

Claim:
A device for moving a metal cope towards and apart from a stationary metal drag, used in a metal mold casting device that uses the metal cope and metal drag, comprising: an upper die plate for carrying the metal cope; a frame; a single upwardly-facing cylinder mounted on the frame for carrying and vertically moving the upper die plate relative to the frame so as to move the metal cope attached to the upper die plate between a first position that is above and relatively near the metal drag and a mold-closing position that is at the metal drag; and an actuator connected to the frame for moving the frame so as to move the metal cope attached to the upper die plate between the first position and a second position that is relatively far from the metal drag; wherein the single upwardly-facing cylinder is connected to the upper die plate through a lateral member and a plurality of vertical supporting rods suspended from the lateral member and slidingly passing through the frame guide vertical movement of the upper die plate.