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.

A support apparatus 1 for supporting a user in an elevated working position above a ground surface G comprises a frame 60 for supporting a floor portion 20 of the support apparatus and a plurality of leg members 40a, 40b mounted to the frame 60 for supporting the frame above the ground surface G. Each leg member has a foot portion 42 for engaging the ground surface G. Each leg member is rotatably mounted to the frame for rotation about a rotational axis which is substantially perpendicular to the width and the length of the frame and each leg member extends from the frame in a radial direction of the rotational axis, whereby the foot portion is offset from the rotational axis.

A support apparatus 1 for supporting a user in an elevated working position above a ground surface G comprises a frame 60 for supporting a floor portion 20 of the support apparatus and a plurality of leg members 40a, 40b mounted to the frame 60 for supporting the frame above the ground surface G. Each leg member has a foot portion 42 for engaging the ground surface G. Each leg member is rotatably mounted to the frame for rotation about a rotational axis which is substantially perpendicular to the width and the length of the frame and each leg member extends from the frame in a radial direction of the rotational axis, whereby the foot portion is offset from the rotational axis.

A system and method for forming scaffolding wherein the system comprises a plurality of upright columns arranged along a line adjacent to a vertical surface and anchored proximate to a base thereof and a platform supported by the plurality of upright columns. The method comprises anchoring a first set of a plurality of upright column segments by a base support proximate to a bottom of wall along a single line, extending a plurality of subsequent upright column segments from the first set of upright column segments to form a plurality of inline upright columns and supporting a platform from the plurality of upright columns.

A system and method for forming scaffolding wherein the system comprises a plurality of upright columns arranged along a line adjacent to a vertical surface and anchored proximate to a base thereof and a platform supported by the plurality of upright columns. The method comprises anchoring a first set of a plurality of upright column segments by a base support proximate to a bottom of wall along a single line, extending a plurality of subsequent upright column segments from the first set of upright column segments to form a plurality of inline upright columns and supporting a platform from the plurality of upright columns.

A movable scaffolding base for transporting an assembled scaffold along a ground surface comprising a frame, having a front, and a rear, and defining a horizontal plane when the assembled scaffold is attached thereto a drive motor, a steering actuator, a pair of rear wheels attached at the rear and driven by the drive motor to drive the frame, a pair of front wheels attached at the front which are rotated to effect steering by action of the steering actuator, a control system for controlling the drive motor and the steering actuator, a set of scaffold support posts attached to the frame that removably attach to vertical members of the assembled scaffold, and one or more outriggers, extending outwards from a first side of the frame to prevent rotation of the horizontal plane towards the side.

A movable scaffolding base for transporting an assembled scaffold along a ground surface comprising a frame, having a front, and a rear, and defining a horizontal plane when the assembled scaffold is attached thereto a drive motor, a steering actuator, a pair of rear wheels attached at the rear and driven by the drive motor to drive the frame, a pair of front wheels attached at the front which are rotated to effect steering by action of the steering actuator, a control system for controlling the drive motor and the steering actuator, a set of scaffold support posts attached to the frame that removably attach to vertical members of the assembled scaffold, and one or more outriggers, extending outwards from a first side of the frame to prevent rotation of the horizontal plane towards the side.

Anti-seismic isolator for isolating of a structure provided with support feet with respect to a ground subject to vibrations induced for example by an earthquake, said isolator comprising an oscillating element that can be associated with at least one of the supporting feet of said structure and a supporting framework provided with a supporting base adapted to support the isolator with respect to the ground, in which said oscillating element and said supporting framework are associated with each other by means of connecting elements sliding in pairs of substantially parallel arched guides, arranged in at least one out of said oscillating element and said supporting framework, whereby said oscillating element and said supporting framework are mutually oscillating and the mutual oscillation of the oscillating element and of the supporting framework causes the simultaneous mutual sliding thereof along two directions perpendicular to each other.

Modular systems of platforms for use on a ground surface are provided along with methods for the use thereof. The system may comprise: a bottom platform; a booster platform; a railing; and/or a lifter. The system increases the modularity, customizability, portability, and safety of: providing a platform for standing above a ground surface; altering the height above a ground surface of a platform by providing a modular or stackable system of platforms; moving a platform from one place to another along a ground surface; supporting a toolbox above a ground surface; and providing a railing to help prevent a user from falling off of a platform.

Modular systems of platforms for use on a ground surface are provided along with methods for the use thereof. The system may comprise: a bottom platform; a booster platform; a railing; and/or a lifter. The system increases the modularity, customizability, portability, and safety of: providing a platform for standing above a ground surface; altering the height above a ground surface of a platform by providing a modular or stackable system of platforms; moving a platform from one place to another along a ground surface; supporting a toolbox above a ground surface; and providing a railing to help prevent a user from falling off of a platform.