Abstract: A hoist apparatus for positioning and supporting a load includes an elongated hollow tubular post extruded of aluminum and formed with a plurality of substantially circular holes formed in certain of the walls adjacent a hollow interior of the post. The holes extend throughout the length of the post and have only a short end section thereof adjacent the end edges of the post tapped to provide internal threads for receiving threaded fasteners for mounting the post on a support base and for securing a drive screw end cap plate on the top of the post.

Abstract: A clamping assembly for mounting an apparatus on a side rail of a conveyor has one or a pair of parallelepiped shaped blocks, each having a tenon extending outwardly from one planar side thereof. The tenon has a shape similar to one-half of a dovetail shaped groove, one or two such grooves are formed in one of the side rails of a conveyor. A pair of fasteners clamp each of the blocks against the outer surface of the side rail with the tenons thereof extending into a respective dovetail groove and engaging one-half of the groove. The outer width of the tenon is less then the entrance opening of the dovetail groove enabling the tenon to be placed directly into the groove without being slid inwardly from an end opening.

Abstract: A clamping assembly for mounting an apparatus on a side rail of a conveyor has one or a pair of parallelepiped shaped blocks, each having a tenon extending outwardly from one planar side thereof. The tenon has a shape similar to one-half of a dovetail shaped groove, one or two such grooves are formed in one of the side rails of a conveyor. A pair of fasteners clamp each of the blocks against the outer surface of the side rail with the tenons thereof extending into a respective dovetail groove and engaging one-half of the groove. The outer width of the tenon is less then the entrance opening of the dovetail groove enabling the tenon to be placed directly into the groove without being slid inwardly from an end opening.