A work gondola comprises a suction attachment device which is mounted on a front portion of the gondola opposing an outer wall of a building, and which couples and fixes the gondola to the outer wall of the building while being attached to the outer wall of the building by suction. The suction attachment device is formed from a first support column extending in a front-rear direction from the front portion of the gondola, a second support column mounted on the front portion of the gondola and extending in a width direction, and a vacuum gripper attached to a distal-end portion of the first support column. The work gondola which can be fixed onto the outer wall of a building to achieve positional stabilization in the air, and which enables accurate and reliable performance of work involved in various construction operations.

An elevator cable management system is described to provide constraints on cable movements at a point between the top and bottom of an elevator track. The system may include a moving retainer bar with a cradle on top of an elevator car, and a fixed retainer bar that retains cables when the elevator car is above the fixed retainer bar.

A method for erecting an elevator system in an elevator shaft of a building includes performing at least one lift process to adapt a usable lift height of the elevator system to an increasing height of the building. During the lift process, a drive platform, which supports an elevator drive machine and, via a flexible support, an elevator car and a counterweight, is lifted along at least one elevator car guide rail. Prior to the lift process, the at least one elevator car guide rail is elongated in the upwards direction above the drive platform and fixed to a shaft wall of the elevator shaft by at least one auxiliary support in the region of the elongation. After the lift process, the at least one auxiliary support, which then lies below the drive platform, is replaced by a final guide rail mounting which is designed differently than the auxiliary support.

The hoisting apparatus includes a climbing rail, which is adapted to be suspended on and translated vertically along a construction at a distance from the ground. There is an enclosure supported by the climbing rail. There is also a lifting platform that is housed within the enclosure and is vertically movable relative to the enclosure.

The hoisting apparatus includes a climbing rail, which is adapted to be suspended on and translated vertically along a construction at a distance from the ground. There is an enclosure supported by the climbing rail. There is also a lifting platform that is housed within the enclosure and is vertically movable relative to the enclosure.

The invention relates to a travel system for cylindrical and/or conical surfaces, in particular for the outer surface or the inner surface of a pipe or mast (1), having: an assembly platform (4a, 4b); a plurality of connected undercarriage elements (6), preferably identical undercarriage elements (6), which form a closed ring in a circumferential direction, in particular together with the assembly platform (4a, 4b) integrated between two undercarriage elements (6); a clamping system (7) which connects at least the undercarriage elements (6) to each other and with which the distance between the connected undercarriage elements (6) can be changed; at least one other undercarriage element (8) which is situated on the assembly platform (4a, 4b) at an axial distance from the ring of connected undercarriage elements (6); wherein at least the undercarriage elements (6) connected to the ring, preferably also the undercarriage element (8) axially spaced therefrom, are each in the form of a continuous track system. The invention also relates to a continuous track vehicle (11), in particular a 2-track continuous track vehicle (11), having at least one chain guided around two spaced deflection wheels (17), in particular deflection gears (17), running surface elements (20) being secured to the links (18) of the chain, wherein the running surface elements (20) each comprise rollers (21) for contacting a driving surface, the axes of rotation of the rollers being oriented in the direction in which the deflection wheels (17) are spaced or the running surface elements (20) being displaceable relative to the associated link (18) by at least one actuator (24).

A work platform for coiled-tubing downhole operations apparatus and method, for safe, efficient, and relatively inexpensive extended access to the elevated top of the section of riser pipe necessary for the use of coiled tubing for downhole operations such as drilling, production, intervention, logging, work-over, and fracturing the reservoir. The access is achieved by providing a shell-like riser-pipe sleeve which attaches securely, but removably, to the top section of riser pipe itself, in such a way that balanced support is obtained without placing dangerous strain on the riser pipe, and by providing a shell-like platform securely, but removably, connected to and supported by the riser-pipe sleeve, which in turn is supported by the riser pipe itself. An integral elevator or lift for personnel and equipment, which is stable without any attachment or anchoring to a work deck, which is safe for personnel, is provided.

Lifting devices for residential, public and industrial buildings and structures, and more specifically, lifting and carrying systems for maintaining building facades, having rail or mast-type guides, which are arranged on the external wall of the building and equipped with teeth, and a lifting device with a drive including a motor with a gearbox, and a toothed wheel mounted on the drive shaft of the gearbox to engage with the teeth of the guides so that, when the toothed wheel rotates, the lifting device moves along the guides. The shapes of the guides duplicate that of the building, and they are attached to the building by brackets passing through the building facade and secured to load-bearing structures of the building. The lifting device has a platform, each edge of which is hinged to a frame connecting two carriages each having a system of guiding thrust rollers supported on the guides.

A container for maintenance capsule as a component of a maintenance system for an offshore wind turbine maintenance program. The container transports tools, parts and maintenance personnel to and from respective wind turbine towers. The container is seaworthy, watertight and floatable, and can be loaded on a maintenance vessel which carries the container to and from a wind turbine tower.

A work platform for coiled-tubing downhole operations apparatus and method, for safe, efficient, and relatively inexpensive extended access to the elevated top of the section of riser pipe necessary for the use of coiled tubing for downhole operations such as drilling, production, intervention, logging, work-over, and fracturing the reservoir. The access is achieved by providing a shell-like riser-pipe sleeve which attaches securely, but removably, to the top section of riser pipe itself, in such a way that balanced support is obtained without placing dangerous strain on the riser pipe, and by providing a shell-like platform securely, but removably, connected to and supported by the riser-pipe sleeve, which in turn is supported by the riser pipe itself. An integral elevator or lift for personnel and equipment, which is stable without any attachment or anchoring to a work deck, which is safe for personnel, is provided.