Thomas G Grove Deceased13631 Parkcrest Blvd UNIT 125, Fort Myers, FL 33912

4792017, Dec 20, 1988

May 9, 1988

7/191610

Thomas S. Grove - York PA

E06C 744

182204

An elongated longitudinally adjustable load-supporting unit attachable to one end of one or both legs of a ladder or at least selected legs of a scaffold to permit using the ladder or scaffold on uneven surfaces, the load-supporting unit comprising an elongated externally-threaded member threadably received within an internally-threaded block-like member split into two similar halves which are pivotally connected adjacent one end and are urged into abutting relationship by spring means, and handle-like members extend respectively in similar directions from the halves of the block-like member and are operable to separate the internally-threaded portions of the block-like member sufficiently to permit free longitudinal movement of the externally-threaded member relative to the pivotally-connected halves of the block-like member. The load-supporting units are connectable to the lower ends of the sides of a ladder or legs of a scaffold between pairs of axially-aligned guide bearings which receive the elongated threaded members therethrough.