The present disclosure relates to a common tower configured to be erected adjacent a building structure into construction. The tower comprises spaced apart columns, made of vertically aligned column hollow sections, spacedly and substantially vertically positioned adjacent the building structure, and vertically spaced apart flooring structures releasably and slidably supported by the spaced apart columns using a plurality of sliders. Each flooring structure is being capable of vertical displacement when supported by the spaced apart columns. The tower further comprises an anchoring system adapted to securely engage with the building structure to maintain the spaced apart columns substantially upright, as well as protection structures adapted to surround the flooring structures. A safe and easy erection of the tower using a common tower assembly is described.

The present invention relates to a gantry tower crane for inspecting a cargo hold, comprising: two running rails which are installed to be spaced apart from each other in the longitudinal direction of the cargo hold; two prefabricated towers, each of which are installed to be able to move along respective running rails; and a basket which is installed to be able to move up and down along the prefabricated towers. Thus, as the basket installed in the prefabricated towers is installed to have a variable length and to be rotatable, it is possible to inspect both wall surfaces and a ceiling of the cargo hold, and to inspect the wall surfaces while moving along an overpass. Also, it is possible to obtain an effect of being able to perform inspection more precisely in a state where an operator comes closer to the wall surfaces by extending an auxiliary foothold of the overpass.

An assembly for installation, repair, or maintenance of balcony-mounted displays. The assembly may include a straddling component or frame, an anchoring assembly for selectively fixing one end of the straddling component in a desired location along the balcony, and a person-holding structure suspended from the balcony by another end of the straddling component. The straddling component may include forward vertical supports extending from the person-holding structure, horizontal supports attached to the forward vertical supports, and aftward vertical supports attached to the horizontal supports. Transport wheels may be rotatably attached to the aftward vertical supports, for rollable relocation of the platform relative to the balcony. The anchoring assembly may include both forward and aftward extension pieces attached to the aftward vertical supports and selectively adjusted to cooperatively fix the aftward vertical supports between a balcony wall and a heel-kick surface below the balcony seating.

An assembly for installation, repair, or maintenance of balcony-mounted displays. The assembly may include a straddling component or frame, an anchoring assembly for selectively fixing one end of the straddling component in a desired location along the balcony, and a person-holding structure suspended from the balcony by another end of the straddling component. The straddling component may include forward vertical supports extending from the person-holding structure, horizontal supports attached to the forward vertical supports, and aftward vertical supports attached to the horizontal supports. Transport wheels may be rotatably attached to the aftward vertical supports, for rollable relocation of the platform relative to the balcony. The anchoring assembly may include both forward and aftward extension pieces attached to the aftward vertical supports and selectively adjusted to cooperatively fix the aftward vertical supports between a balcony wall and a heel-kick surface below the balcony seating.

A platform system comprising a platform structure having at least one modular platform unit with platform connection features on a side surface thereof to which other components can be connected, the other components including at least two of the following: another modular platform unit, a stair unit, a tower unit, a handrail unit, and a ladder unit. A stair assembly is connected to the platform structure via said connection features, the stair assembly comprising a plurality of stair units connected together to provide a number of steps equal to the sum of steps of the stair units.

A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames. The side rails of the platform are reversible so that they can be mounted between the ladder frames in either a first orientation or in a second orientation. In the first orientation, the adjustable height platform is vertically movable between a first threshold and a maximum height. In the second orientation, the adjustable height platform is vertically movable between a second threshold and a minimum height. The ranges of movement in the first and second orientations may overlap.

A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames. The side rails of the platform are reversible so that they can be mounted between the ladder frames in either a first orientation or in a second orientation. In the first orientation, the adjustable height platform is vertically movable between a first threshold and a maximum height. In the second orientation, the adjustable height platform is vertically movable between a second threshold and a minimum height. The ranges of movement in the first and second orientations may overlap.

A lightweight, multifunction scaffold comprises first and second ladder frames, and an adjustable height platform configured to be supported between the first and second ladder frames at a user selected height in an adjustment range. The adjustable height platform comprises a pair of spaced-apart side rails extending between the ladder frames and a deck supported on opposing sides by the side rails. The deck includes at least one recess in a top surface of the deck adjacent each of the opposing sides of the deck. The scaffold further includes at least one latch rotatably mounted to each side rail and including a catch element for engagement with the recess in the top surface of the deck to secure the deck on the side rails. The latch is movable between a disengaged position allowing the deck to be installed or removed from the side rials and an engaged position in which the catch element extends over a top surface of the deck and engages with a respective one of the recesses in the deck so that the catch element is flush with or below the surface of the deck.

A lightweight, multifunction scaffold comprises first and second ladder frames, and an adjustable height platform configured to be supported between the first and second ladder frames at a user selected height in an adjustment range. The adjustable height platform comprises a pair of spaced-apart side rails extending between the ladder frames and a deck supported on opposing sides by the side rails. The deck includes at least one recess in a top surface of the deck adjacent each of the opposing sides of the deck. The scaffold further includes at least one latch rotatably mounted to each side rail and including a catch element for engagement with the recess in the top surface of the deck to secure the deck on the side rails. The latch is movable between a disengaged position allowing the deck to be installed or removed from the side rials and an engaged position in which the catch element extends over a top surface of the deck and engages with a respective one of the recesses in the deck so that the catch element is flush with or below the surface of the deck.

A multi-use support stand used for holding various types of building materials and used in other types of construction projects. The support stand includes a horizontal foot brace and a horizontal cross brace attached to a bottom of a vertical support post. An oblique support post is attached to a top portion of the vertical support post and a portion of the foot brace. One end of a horizontal extension arm is attached to a sliding “U” shaped channel. The channel is received around a portion of the oblique support post. A pin is received in a selected pin hole in the side of the support post for securing the sliding channel to the oblique support post. When a first and second support stands are placed next to each other, the horizontal extension arms are used for holding loads of sheet rock, plywood, bench table top, working platform, shelving, footbridge sections, dimensional lumber, and other application specific items needing to be supported horizontally or an elevated obtuse angle.