A mobile assembly support unit that includes an assembly line sync mechanism having a line engagement unit coupled to a rotatable sync arm, a propulsion unit having a propulsion wheel and a propulsion motor, a translation arm coupled to the propulsion unit and engageable with the rotatable sync arm, and an air cylinder coupled to the propulsion unit. The air cylinder is actuatable between a retracted position and an extended position such that when the air cylinder is in the retracted position, the translation arm is engaged with the rotatable sync arm and the propulsion unit is in a lifted position and when the air cylinder is in the extended position, the translation arm is disengaged with the rotatable sync arm and the propulsion unit is in a descended position.

A mobile assembly support unit that includes an assembly line sync mechanism having a line engagement unit coupled to a rotatable sync arm, a propulsion unit having a propulsion wheel and a propulsion motor, a translation arm coupled to the propulsion unit and engageable with the rotatable sync arm, and an air cylinder coupled to the propulsion unit. The air cylinder is actuatable between a retracted position and an extended position such that when the air cylinder is in the retracted position, the translation arm is engaged with the rotatable sync arm and the propulsion unit is in a lifted position and when the air cylinder is in the extended position, the translation arm is disengaged with the rotatable sync arm and the propulsion unit is in a descended position.

A rigging system comprising a plurality of members including: a first hexagonal support piece comprising: six side members, six rod clamps, each one of the rod clamps being configured to receive and hold a rod piece and positioned between and connecting two neighboring ones of the side members, the each one of the rod clamps comprising: a gap open to outward from a center of the first hexagonal support piece, a latch configured to close the gap at least in part to hold the rod piece within the gap, a set screw hole configured for a set screw to be inserted to tighten the latch, and a rear hole configured for a screw or a bolt to be inserted toward the center of the first hexagonal support piece, and at least one side hole; a first set screw having a cross-section of size and shape configured to fit closely within a cross-section of the set screw hole; and a first connection bolt having a cross-section of size and shape configured to fit closely within a cross-section of the at least one side hole, wherein the plurality of members have a plurality of configurations of structural support, is disclosed.

A work platform includes a frame and a deck. The frame has a plurality of frame members that are interconnected. The frame members define a trough that extends a length of the frame and is configured to accommodate a refueling boom of an aircraft such that the refueling boom extends through the frame within the trough. The deck is mounted to the frame to provide a stand. The deck includes a first deck panel and a second deck panel spaced apart from each other to define an opening to the trough.

A work platform includes a frame and a deck. The frame has a plurality of frame members that are interconnected. The frame members define a trough that extends a length of the frame and is configured to accommodate a refueling boom of an aircraft such that the refueling boom extends through the frame within the trough. The deck is mounted to the frame to provide a stand. The deck includes a first deck panel and a second deck panel spaced apart from each other to define an opening to the trough.

A lift apparatus includes a ladder assembly having a first ladder end portion and a second ladder end portion extending upwardly from a base framework, each end portion having a pair of upstanding support legs and a plurality of rungs. The lift apparatus includes a platform that is slidably coupled to respective support legs of respective ladder end portions, the platform having a floor surface capable of supporting a person. The lift apparatus include a motorized pulley system operable for raising and lowering the platform relative to the ladder end portions via a controller accessible to the worker while standing on the platform.

A lift apparatus includes a ladder assembly having a first ladder end portion and a second ladder end portion extending upwardly from a base framework, each end portion having a pair of upstanding support legs and a plurality of rungs. The lift apparatus includes a platform that is slidably coupled to respective support legs of respective ladder end portions, the platform having a floor surface capable of supporting a person. The lift apparatus include a motorized pulley system operable for raising and lowering the platform relative to the ladder end portions via a controller accessible to the worker while standing on the platform.

A support apparatus for use in civil construction includes a base (1), hydraulic support rods (2) installed at four corners on the bottom of the base (1), a pulley (3) installed at an inner side of the hydraulic support rods (2), a first motor (5) installed at the bottom of the base (1), a transmission wheel (6) provided in the middle portion of a transmission shaft (4), threaded rods (7) disposed at two ends of the transmission shaft (4). A hydraulic cylinder (9) is installed at the top of the base (1). A hydraulic station (10) is installed at a side of the hydraulic cylinder (9), and a support base (11) is fixed on the top of the hydraulic cylinder (9). A second motor (12) is installed at an end of the support base (11), and a lead screw (18) is installed inside the support base (11) at the center.

A support apparatus for use in civil construction includes a base (1), hydraulic support rods (2) installed at four corners on the bottom of the base (1), a pulley (3) installed at an inner side of the hydraulic support rods (2), a first motor (5) installed at the bottom of the base (1), a transmission wheel (6) provided in the middle portion of a transmission shaft (4), threaded rods (7) disposed at two ends of the transmission shaft (4). A hydraulic cylinder (9) is installed at the top of the base (1). A hydraulic station (10) is installed at a side of the hydraulic cylinder (9), and a support base (11) is fixed on the top of the hydraulic cylinder (9). A second motor (12) is installed at an end of the support base (11), and a lead screw (18) is installed inside the support base (11) at the center.

Stabilization components are described for use with a lightweight scaffold comprising two ladder frames, an adjustable platform supported between the two ladder frames, and casters. Each ladder frames include two vertical supports connected by cross members. The platform comprises two side rails having guide channels at each end thereof that slide along the vertical supports. The casters includes stems that insert into the lower ends of the vertical supports. When installed, the stabilization components reduce shaking and swaying of the lightweight scaffold.