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.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames. The side rails of the platform are reversible so that they can be mounted between the ladder frames in either a first orientation or in a second orientation. In the first orientation, the adjustable height platform is vertically movable between a first threshold and a maximum height. In the second orientation, the adjustable height platform is vertically movable between a second threshold and a minimum height. The ranges of movement in the first and second orientations may overlap.

A connector for a scaffolding system includes end portions and a central portion. The central portion includes raised upper and side regions that protrude outward. Raised side regions of the central portion also includes an indent disposed distally from the raised upper region. The end portions are securable to a support beam of the scaffolding system, where the raised upper region is substantially coplanar with an upper wall of the support beam when the support beam is coupled to an end portion.

A method of producing an in-situ molded concrete object includes positioning a form on a substrate. The form can include a leg portion, a face portion, and a frangible portion. The frangible portion can connect the leg portion to the face portion. The method includes coupling the leg portion to the substrate to create a container open on at least one side. The method also includes pouring concrete into the container. The frangible portion can be fractured to separate the face portion from the leg portion.

A method of producing an in-situ molded concrete object includes positioning a form on a substrate. The form can include a leg portion, a face portion, and a frangible portion. The frangible portion can connect the leg portion to the face portion. The method includes coupling the leg portion to the substrate to create a container open on at least one side. The method also includes pouring concrete into the container. The frangible portion can be fractured to separate the face portion from the leg portion.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on and is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on and is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

Various implementations described herein are directed to a load bearing ledger fitting, a modular header beam, a perimeter safety deck, a multi-purpose bearing plate, and a mega-shore bearing plate of an integrated construction system.