A brace tool comprises a rigid frame, a platform mounted on the frame for adjustable positioning of the platform relative to the frame, and a plurality of suction cups. The plurality of suction cups can be removably attached to a flat surface that is adjacent to an inclined surface 12 above which work is to be performed. The platform can be adjustably positioned relative to the frame 22, and then secured in its adjusted position. The platform can then be used as a brace that can be engaged by the person on the inclined surface that is performing the overhead work and prevent the person from sliding down the inclined surface.

A material transport and installation arrangement comprising a first working platform system in an elevator shaft for reaching a first installation height; and a first material hoisting system for moving elevator components vertically in the elevator shaft is disclosed. The arrangement is characterized in that it comprises a second working platform system in the elevator shaft for reaching a second installation height, the second working platform system comprising a second platform hoist, second platform roping and a vertically moveable second working platform, the second working platform being below the first working platform; and a second material hoisting system for moving elevator components vertically in the elevator shaft, the second material hoisting system comprising a second material hoist, second material roping and a second material holder. Further, a method for parallel transport and installation of elevator components is disclosed.

A method includes plumbing an elevator shaft, installing a lowermost first section of guide rail elements manually to walls of the shaft, arranging an upwards and downwards in the shaft with a first hoist movable lifting frame, arranging an upwards and downwards in the shaft with a second hoist movable installation platform provided with a guide apparatus, an installation apparatus and an alignment tool, drilling holes and fastening support brackets to the walls of the shaft with the installation apparatus, lifting guide rail elements with a third hoist from the lifting frame and guiding said guide rail elements into position with the guide apparatus, joining consecutive guide rail elements with the installation apparatus, and aligning opposite guide rail elements with the alignment tool and locking the support brackets with the installation apparatus.

Scaffolding apparatus and related methods are disclosed. An example scaffolding apparatus includes a beam defining a length between a first end of the beam and a second end of the beam opposite the second end. The length of the beam spans between a first side of a fuselage portion of an aircraft and a second side of the fuselage portion opposite the first side. A first connector is coupled to the first end of the beam. The first connector engages a first stringer on the first side of the fuselage portion to couple the first end of the beam to the fuselage portion. A second connector is coupled to the second end of the beam. The second connector engages a second stringer on the second side of the fuselage portion to couple the second end of the beam to the fuselage portion.

In an example there is provided a temporary work platform assembly for installation inside a wind turbine rotor blade. The work platform assembly comprises a platform for supporting a person during service or maintenance of the wind turbine blade, and a support structure for sup-porting the platform. The support structure is adapted for connection to an internal surface of the wind turbine blade. The platform comprises a plurality of panels.

An apparatus and method for raising a self-jacking scaffold system including extending a jacking screw and jacking screw bracket axially upward, connecting a jacking screw bracket to an overhead tank bracket for a plurality of scaffold sections coupled to a jacking assembly, detaching a plurality of scaffold mounting brackets from a plurality of tank mounting brackets, raising the continuously coupled plurality of scaffold sections, and reattaching the plurality of scaffold mounting brackets to a plurality of tank mounting brackets. Noting the plurality of scaffold sections is continuously coupled proximate a circumference of a shell tank, the continuously coupled scaffold sections and tank mounting brackets provide stiffness to the tank shell to enable it to resist external loads and can be quickly moved and restored as required during tank construction.

The maintenance assembly, for workers to perform maintenance activities within a gas turbine engine, is capable of being arranged within a cavity, generally around a combustor, accessible from a manhole of the gas turbine engine. The maintenance assembly includes a platform, and an inflatable member cooperatively configured to the platform. The inflatable member is at a normal condition, when placed outside of the cavity, being at a deflated position and is at a working condition, when arranged within the cavity, being at inflated position so as to accommodate a shape coordinating the cavity in such a manner that the platform is advance within the cavity up to a predetermined level to enable the workers on the platform to reach at a predetermined position within the cavity to perform the maintenance activities.

The present invention concerns a lifting apparatus, in particular a cross lifting beam, for lifting a first pylon segment of a concrete pylon of a wind power installation by means of a crane, including at least one fixing means for fixing the pylon segment to the lifting apparatus, and at least one release apparatus for releasing a connection between the lifting apparatus and the pylon segment.

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.

Provided is a platform positioning system including a platform and an elevator, wherein a cabin of the elevator is movable along a wall segment of a building, wherein the platform positioning system further includes a first attachment mechanism for releasably attaching the platform to the cabin, wherein the motion of the cabin and the platform are coupled to each other when the platform is attached to the cabin, and a second attachment mechanism for releasably attaching the platform to the wall segment.