A portable observation stand includes a platform and legs pivotal between a raised transport position and a lowered use position. The legs are retained in the use and transport positions by removable braces retentively engaging crossbars on the legs. The stand is transported and erected using a lift vehicle having forks extending beneath the platform, which raises the platform so that the legs fold downwardly by gravity. A blind may be mounted on top of the platform, to include one or more people for various activities, including deer hunting, birdwatching, and wildlife photography.

A portable observation stand includes a platform and legs pivotal between a raised transport position and a lowered use position. The legs are retained in the use and transport positions by removable braces retentively engaging crossbars on the legs. The stand is transported and erected using a lift vehicle having forks extending beneath the platform, which raises the platform so that the legs fold downwardly by gravity. A blind may be mounted on top of the platform, to include one or more people for various activities, including deer hunting, birdwatching, and wildlife photography.

An isolated human work platform for stabilized positioning of collaborative robotics. A base platform is provided, and a work platform is positioned above the base platform for supporting one or more humans. One or more robots are supported on the base platform independently of the work platform, so that movement of the work platform does not affect the robots' positions. The work platform is isolated from the robots for stabilized positioning of the robots, so that the base platform and work platform together provide a collaborative workspace for the robots and the humans.

An isolated human work platform for stabilized positioning of collaborative robotics. A base platform is provided, and a work platform is positioned above the base platform for supporting one or more humans. One or more robots are supported on the base platform independently of the work platform, so that movement of the work platform does not affect the robots' positions. The work platform is isolated from the robots for stabilized positioning of the robots, so that the base platform and work platform together provide a collaborative workspace for the robots and the humans.

A method and apparatus for supporting collaborative robots and humans in a narrowing work envelope. A base platform is provided, and a work platform is positioned above the base platform for supporting one or more humans, wherein the work platform is narrower than the base platform, and the work platform is positioned relative to the base platform to provide areas for positioning one or more robots on one or more sides of the work platform. The robots are supported on the base platform independently of the work platform, so that movement of the work platform does not affect the robots' positions.

A method and apparatus for supporting collaborative robots and humans in a narrowing work envelope. A base platform is provided, and a work platform is positioned above the base platform for supporting one or more humans, wherein the work platform is narrower than the base platform, and the work platform is positioned relative to the base platform to provide areas for positioning one or more robots on one or more sides of the work platform. The robots are supported on the base platform independently of the work platform, so that movement of the work platform does not affect the robots' positions.

A lean-to rigging apparatus is described for installation in a shaft, such as an elevator shaft, having a wall and including at least one sill opposite the wall. The rigging apparatus includes a spanning beam, a sill support structure, a wall support member, and a hoist connector. The sill support structure on a first end of the spanning beam is designed to seat against a sill in the in the shaft while the wall support member on a second end of the spanning beam abuts against the opposite shaft wall. The sill support structure is rigidly connected to the spanning beam in a hingeless configuration and can seat against a sill in a plurality of seating positions. These seating positions allow the rigging apparatus to be positioned in a plurality of angles and therefore to be installed in shafts of different dimensions. The hoist connector is configured to allow a connection to a hoist device for hoisting various materials from one level to another within the shaft.

The ladder convertible to a scaffold is a self-standing ladder that is able to convert into a scaffold. The self-standing ladder is constructed of two ladder members that are able to attach to and pivot with respect to one another via a removable cap. The two ladder members also attach to one another via a foldable platform, which provides support when the two ladder members are pivoted away from one another in a self-standing configuration. The two ladder members may be disconnected to one another, and held in parallel arrangement with respect to one another via the foldable platform. The foldable platform is able to span a scaffold length between the two ladder members in order to form a scaffold. A pair of guar members attach to the two ladder members to provide guide rails on opposing sides of the scaffold.

The ladder convertible to a scaffold is a self-standing ladder that is able to convert into a scaffold. The self-standing ladder is constructed of two ladder members that are able to attach to and pivot with respect to one another via a removable cap. The two ladder members also attach to one another via a foldable platform, which provides support when the two ladder members are pivoted away from one another in a self-standing configuration. The two ladder members may be disconnected to one another, and held in parallel arrangement with respect to one another via the foldable platform. The foldable platform is able to span a scaffold length between the two ladder members in order to form a scaffold. A pair of guar members attach to the two ladder members to provide guide rails on opposing sides of the scaffold.

The present invention relates to a ladder with a design such that storage is incorporated into the ladder body, most notably the rails, by providing for a storage area for tools and other things, which will be incorporated into the manufacture of the ladder. An alternative version is a storage unit approximately the width of the rails of existing ladders, which can be fixedly attached thereto, providing a storage area for tools and other things.