The QDS scaffolding system can be delivered to the job-site in a pre-assembled but stowed configuration and can then be rapidly assembled on the job-site. Assembly may be accomplished using an external power source such as a crane, an internal power source such as a hydraulic actuator or an electrical motor, or any other suitable power source. In certain circumstances, manual erection could even be used. It is a modular system consisting of structural frameworks, quick deploy mechanisms, locking frameworks and working platforms. The quick deploy mechanisms are integrated within the structural frameworks and allow each structural framework to be erected from its stowed position to full working height by an auxiliary power source, such as a crane. In some instances the structural frameworks can be erected using an internal power source or even manually. Multiple base assemblies can be connected together to form a scaffolding system of various heights with one or more working platforms

A method and apparatus for assembling a hanging scaffold system within the aft pressure bulkhead area of an aircraft to provide access to the pressure dome without contacting the pressure dome. The hanging scaffold system comprises a group of horizontal supports to support at least one floorboard. A group of vertical supports is connected to and extends perpendicularly from the group of horizontal supports. A clamping device is attached to each vertical support of the group of vertical supports and further engages an attachment point on an internal structure of an aircraft.

A modular platform system includes a base module and at least one extension module. One side of the base module has a recess for receiving a connector on one side of the extension module to connect the extension module to the base module. The extension module may include a recess for receiving a connecting member on a second extension module to connect the second extension module to the extension module.

A modular platform system includes a base module and at least one extension module. One side of the base module has a recess for receiving a connector on one side of the extension module to connect the extension module to the base module. The extension module may include a recess for receiving a connecting member on a second extension module to connect the second extension module to the extension module.

The present invention relates to a structure for supporting an information or surveillance device above a road. The structure includes: at least one post extending upwards from the ground to an elevated position, at least one overhead beam which is supported by said post, the overhead beam extending over a horizontal distance above the road, at least one information or surveillance device being connected to said overhead beam and being positioned above the road, a catwalk extending along the overhead beam, wherein said catwalk comprises a guard rail assembly which is movable between: an operating position in which the guard rail assembly extends upwardly from a floor of the catwalk and protects personnel from falling from the catwalk, and a retracted, non-operating position in which the guard rail assembly is concealed behind the overhead beam when viewed from a direction of approaching traffic on the road.

The present invention relates to a structure for supporting an information or surveillance device above a road. The structure includes: at least one post extending upwards from the ground to an elevated position, at least one overhead beam which is supported by said post, the overhead beam extending over a horizontal distance above the road, at least one information or surveillance device being connected to said overhead beam and being positioned above the road, a catwalk extending along the overhead beam, wherein said catwalk comprises a guard rail assembly which is movable between: an operating position in which the guard rail assembly extends upwardly from a floor of the catwalk and protects personnel from falling from the catwalk, and a retracted, non-operating position in which the guard rail assembly is concealed behind the overhead beam when viewed from a direction of approaching traffic on the road.

A cage for surrounding a section of a work area of the top of rolling stock includes an inboard side, an outboard side, a front end section and a back end section. The inboard side of the cage is attached to an associated deployment apparatus. Each of the two sides can define a pair of fence notches to slide over the rails surrounding the work area. Each of the two end sections can define an inboard notch and a center notch. Some embodiments of the end sections can define an outboard notch that includes a self-adjusting straddle. The cage can be provided as part of a portable fall protection device that includes a telescoping positioning mechanism.

The invention relates to a scaffold stairway (10) having two spaced-apart side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) designed as hollow profiles (43; 43.sup.(I); 43.sup.(II); 43.sup.(III); 43.sup.(IV)) and a plurality of separate steps (16). The steps (16) can be fastened by their free ends (17) in holding devices for holding the steps that are designed as grooves (18; 18.sup.(I); 18.sup.(II); 18.sup.(III); 18.sup.(IV)) on the mutually facing lateral faces (19) of the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)). The free ends (17) of the steps (16) lie on a groove flank (96a, 96b) or a groove flank portion (60a, 60b). As a result, the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) can be coupled.

The invention relates to a scaffold stairway (10) having two spaced-apart side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) designed as hollow profiles (43; 43.sup.(I); 43.sup.(II); 43.sup.(III); 43.sup.(IV)) and a plurality of separate steps (16). The steps (16) can be fastened by their free ends (17) in holding devices for holding the steps that are designed as grooves (18; 18.sup.(I); 18.sup.(II); 18.sup.(III); 18.sup.(IV)) on the mutually facing lateral faces (19) of the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)). The free ends (17) of the steps (16) lie on a groove flank (96a, 96b) or a groove flank portion (60a, 60b). As a result, the side rails (12, 14; 12.sup.(I), 14.sup.(I); 12.sup.(II), 14.sup.(II); 12.sup.(III), 14.sup.(III); 12.sup.(IV), 14.sup.(IV)) can be coupled.

A ladder hoop having a hoop shaped member with an inner facing surface, an outer facing surface, a top and a bottom. The hoop has two terminating ends forming an opening there between, and each terminating end is adapted to attach to a scaffold ladder. The hoop includes tabs supporting a member movable on the tabs between an open position and a closed position.