Patent ID: 8262982
Filing Date: 2012-09-11
Classification: B22D,B66C,F27B,F27D

Abstract:
1. An apparatus for the removal and replacement of a lid on a metallurgical transport vessel, comprising: a frame, installed such that the vessel may be moved into position thereunder; a linkage including at least one lifting member, pivotally connected to the frame; at least one actuator connected to the linkage, operable to move the lifting member such that when the vessel is moved into a designated position below the apparatus, the lifting member can be moved by the actuator and linkage from a first position providing clearance above the vessel, through a curved path to an intermediate position where it engages the lid, providing a vertical lifting force and a horizontal hinge releasing force, and to a second position where the lid is raised to a sufficient height to clear the vessel, and the at least one lifting member may subsequently be moved back by the actuator and linkage through a reverse curved path to the first position, and thereby lower the lid back on to the vessel.