A rotatable bracket assembly for use with self-leveling devices that includes a first bracket portion having an upper region with an outer surface and a substantially flat inner surface, wherein a cylindrical carriage bolt receiving structure is formed on one end of the inner surface; and a lower region having an outer surface and an inner surface, wherein a stem and flange receiving region is formed on the inner surface; and a second bracket portion that is adapted to be connected to the first bracket portion, wherein the second bracket portion further includes an upper region having an outer surface and a substantially flat inner surface, wherein a cylindrical carriage bolt receiving structure is formed on one end of the inner surface; and a lower region having an outer surface and an inner surface, wherein a stem and flange receiving region is formed on the inner surface.

A collapsible leg assembly that includes a first leg having an upper portion and a lower portion; a second leg having an upper portion and a lower portion; a crossbar extending between the lower portions of the first and second legs, wherein the crossbar further includes a first section and a second section that are either flexibly connected to one another or detachably connected to one another; an upper leg receptacle that is adapted to receive the upper portion of the first leg in a hinged manner and the upper portion of the second leg in a hinged manner; a first lower leg receptacle that is adapted to receive the bottom portion of the first leg in a fixed manner and the first section of the crossbar in hinged manner; and a second lower leg receptacle that is adapted to receive the bottom portion of the second leg in a fixed manner and the second section of the crossbar in hinged manner.

A universal mount platform for office and industrial modular workstations including embodiments of an N-side slot mount matrix. The N-side slot mount matrix also includes an N number of outer rails arranged in a N-sided polygon, where N is an integer, each of the outer rails having two outer rail ends, each of the two outer rail ends coupled to one of the outer rail ends of another one of the outer rails. The N-side slot mount matrix has an N number of inner rails, each of the inner rails having a first end coupled to one of the outer rails and a second fend coupled to another one of the inner rails. The N-side slot mount matrix has an N number of mount slots, each between one of the inner rails and an adjacent one of the outer rails.

A Three-Dimensional Positioning and Holding Modular System for office and industrial work stations including embodiments of multi-rail beams and rail-arm-leg modules. The embodiments have tubes, bars, or channels arranged and connected in ways that provide improved ability to transmit torque along a long axis of the multi-rail beam while providing improved resistance to twisting under the forces of the torque.

A universal mount platform for office and industrial modular workstations including embodiments a ring mount platform module and a linear dual-rail mount platform module. A single rail ring mount platform has a ring rail that is a metal tube, square in cross-section, shaped as a ring, with a plurality of fastener holes penetrating vertically through the rail. A dual rail ring mount platform has a first ring rail and a second ring rail, both metal tubes, square in cross-section, the first ring rail having an inside radius that is larger than an outside radius of the second ring rail. A linear dual-rail mount platform module has two double rail slot columns coupled by two sets of dual rails. Mount slots between dual rails are set and maintained by spacers or end plates.

A supporter for a woodworking table contains: four supporting rods, four driving columns, and two movable adjustment posts. Two middle sections of two of the four driving columns are rotatably connected with two middle sections of the other two of the four driving columns respectively, and one side of each of the four supporting rods is in connection with each of two ends of each driving column. The two movable adjustment posts parallelly correspond to each other, and each end of each of the two movable adjustment posts is rotatably connected with a middle section of each supporting rod. Each movable adjustment post includes an outer tube, an inner tube, and an adjustable stem. Thereby, the supporter of the present invention is collapsible so as to decrease its storage size. The supporter adjustably supports the table board based on a size of the table board.

A universal stand for a rack. The universal stand is configured to allow an rack to be mounted and unmounted allowing stability to hold the rack in an up right position. The said universal may compose of a lightweight material such as steel, stainless steel, metal or aluminum which may be inexpensive to manufacture.

A structure includes a first body member including a first interfacing side edge and a first interconnecting component at the first interfacing side edge and a second body member identical to the first body member, the second body member including a second interfacing side edge and a second interconnecting component at the second interfacing side edge. The first interconnecting component engages with the second interconnecting component to secure the first body member and the second body member together.

Embodiments of a multi-track beam for use in modular assembly systems for office and industrial work stations. The embodiments have four corner tubes, bars, or channels arranged in a rectangular pattern in cross-section and connected in ways that provide improved ability to transmit torque along a long axis of the multi-track beam while providing improved resistance to bending under the forces of the torque. Fastening devices such a jam nuts may be inserted into the tracks to secure accessories to the multi-track beam or to other multi-track beams.

A universal mount platform for office and industrial modular workstations including embodiments a ring mount platform module and a linear dual-rail mount platform module. A single rail ring mount platform has a ring rail that is a metal tube, square in cross-section, shaped as a ring, with a plurality of fastener holes penetrating vertically through the rail. A dual rail ring mount platform has a first ring rail and a second ring rail, both metal tubes, square in cross-section, the first ring rail having an inside radius that is larger than an outside radius of the second ring rail. A linear dual-rail mount platform module has two double rail slot columns coupled by two sets of dual rails. Mount slots between dual rails are set and maintained by spacers or end plates.