Abstract: A device for inserting or withdrawing long or heavy objects into or from a storage container comprising a column structure movably positioned on rail tracks, a vertically positionable elevating table mounted on the column structure, at least one gripper support positioned on the elevating table, the gripper support movably supporting a gripper device which includes gripper arms which function to grip the objects for insertion or withdrawal from the storage container, the gripper device including a circulating chain and lever linkage connected at one end to the circulating chain and at the other end to the gripper arms, the circulating chain and lever linkage operating such that the opening and closing movement of the gripper arms is accomplished quickly and in a very accurate manner.