An apparatus for supporting an object at a window of a building comprises a first member, a second member, and a third member. The first member extends along at least a partial width of the window and abuts an interior surface of the building. The first member is configured to support the object by exerting an outward force on the interior surface of the building in response to a downward force exerted by the object. The first member also comprises at least two sections extending from the interior of the building to the exterior of the building. These sections may extend from the interior of the building to the exterior of the building about respective distal ends of the first member. The sum of the forces applied on the surfaces of the building are sufficient to secure the object to the building.

Work platform, comprising an elevatable platform deck provided with a rail system having one or more rails extending in a longitudinal direction along a trailing edge of the deck; a trolley engaging with the one or more rails and configured for being moved in the longitudinal direction; and a crane device mounted on the trolley, configured for lifting and moving objects above the platform surface.

Work platform, comprising an elevatable platform deck provided with a rail system having one or more rails extending in a longitudinal direction along a trailing edge of the deck; a trolley engaging with the one or more rails and configured for being moved in the longitudinal direction; and a crane device mounted on the trolley, configured for lifting and moving objects above the platform surface.

A platform system is configured to allow an individual to be supported at a plurality of different heights, and includes a frame defining a plurality of platform adjustment levels, and an upper support platform that is configured to be selectively moved between the plurality of platform adjustment levels to provide the plurality of different heights.

One embodiment of the invention is a horizontal scaffold truss that has upper and lower horizontal scaffold members offset but fixedly joined with braces. Each upper and lower members have a connector positioned on each end of the respective lower and upper members, where at least one of the connectors is pivotally mounted on the respective lower or upper connector, and the connecters are engageable with an annular member positioned on a vertical scaffold member.

A building assembly system for fabricating a multi-story building is described, wherein the building includes a vertical support core arranged on a base. Lift jacks are arranged between a top portion and a bottom portion of the vertical support core, and a reusable bridle is suspended from the plurality of lift jacks and slidably arranged on the vertical support core. A floor plate is assembled onto the bridle at an assembly level that is proximal to the base. The plurality of the lift jacks are operable to lift the bridle and the assembled floor plate to a design elevation on the vertical support core, and are operable to lower the bridle to the assembly level on the vertical support core after the floor plate has been secured to the vertical support core at the design elevation.

A climbing device is proposed having at least one climbing rail for adjusting and/or climbing a scaffolding and/or a formwork and/or a platform, at least one climbing shoe being arranged on the climbing rail, at least one hydraulic cylinder comprising at least one drive piston, arranged in a cylinder housing, and having a hydraulic fluid being provided for raising the climbing shoe and/or the climbing rail and/or the scaffolding and/or the formwork and/or the platform, which at least partially avoids or at least reduces the disadvantages of the prior art. According to the invention this is achieved in that the hydraulic cylinder is embodied as a hydraulic unit, the hydraulic unit comprising at least one hydraulic tank for storing hydraulic fluid, an electric motor and a hydraulic pump driven by the electric motor for pressurizing the hydraulic fluid.

A system for mounting to a scaffold comprises a holder and a shelf. The holder includes a first slot for receiving a drink container, e.g., a large cup, and a second slot for receiving a phone, e.g., a smart phone. The shelf includes apertures for receiving tools. The holder is configured to attach to the shelf, which can mount on the scaffold, for providing added workspace and more places to put tools.

A safety system (1) for scaffolding on a construction site having a plurality of elongate scaffolding elements (5) connected together by a plurality of couplers (7) to form a scaffolding structure (2). One or more elements connected to one or more base plates supporting the structure on a surface. At least two safety monitors (10) spaced apart about said structure. Each said monitor having a power source, a sensor and a transmitter. The sensor sensing movement in said structure and transmitting a signal to a receiver to indicate movement in the structure.

A safety system (1) for scaffolding on a construction site having a plurality of elongate scaffolding elements (5) connected together by a plurality of couplers (7) to form a scaffolding structure (2). One or more elements connected to one or more base plates supporting the structure on a surface. At least two safety monitors (10) spaced apart about said structure. Each said monitor having a power source, a sensor and a transmitter. The sensor sensing movement in said structure and transmitting a signal to a receiver to indicate movement in the structure.