Safety-catch scaffolding system

A scaffolding system comprising, in combination, a plurality of frames, a series of spaced upright standards each having a plurality of vertically disposed slots or open faces therein communicating with the interior of the standard, two such outwardly and oppositely directed slots in each said standard being adapted for the sliding engagement therein of the edges of said frames which extend between the standards, and a third such slot being adapted for the sliding engagement therein of fastening means near the end of a cantilever protruding beyond the edge of a floor slab of a building to be protected by the interposing of said frames in the spaces between adjacent standards, so as to extend above and beyond a formed floor, quick detachable means connecting said frames to said standards at vertically spaced intervals.