Patent ID: 6354769
Filing Date: 2002-03-12
Classification: B66B

Abstract:
An apparatus for removing an old elevator hydraulic cylinder casing from the ground and replacing it with a new hydraulic cylinder casing, comprising:a vertical tower having a base for mounting on the floor of an elevator hoistway centered over an old in-ground elevator hydraulic cylinder casing with the tower extending vertically upwardly from the base; a head plate slidably mounted on the tower for vertical movement up and down the tower; a releasable locking device for releasably securing the head plate at a selected height on the tower, the head plate having a downwardly facing attachment device for securing the head plate to a shoring sleeve or cylinder casing; and a drive assembly linked to the head plate for moving the head plate upwardly and downwardly along the height of the tower with the locking device released, whereby the drive assembly forces the head plate downwardly along the tower to move the shoring sleeve or cylinder casing attached to the head plate to submerged, in-ground position below the floor of the elevator hoistway, and lifts the head plate upwardly to lift the old elevator hydraulic cylinder casing from an in-ground position to a removed position spaced above the floor of the elevator hoistway.