Abstract: A lift table mechanism has a thread screw secured upright within a support tube; a driven nut threadedly mounted to the screw which is raised and lowered by rotating around the thread screw; a carriage frame attached to the nut and supporting a table surface; a drive engaging a main driver gear connected to the drive; and an idler gear coupled to the main driver gear and in turn engaging the nut. Alternatively, a cross shaft driver is rotatably coupled between the main driver gear and the idler gear; a cross shaft connects cross shaft drivers of multiple table lift mechanisms wherein the cross shaft drivers rotate concurrently.

Abstract: A flooring system is provided for elevating flooring panels above a subfloor, such as the subfloor of a computer room. The invention provides a flooring substructure which has a plurality of elongated tracks arranged parallel to one another. A plurality of brackets are securable against the tracks, and a plurality of channel members are secured to the brackets so that the channels are aligned perpendicularly to the tracks. The channels are configured for supporting the flooring panels. Adjustable leveling screws are threaded upwardly through the brackets to contact the subfloor and support the substructure.