Patent ID: 7004286

Claim:
A motorized scaffold for self-displacement on land, said scaffold comprising a motorized support base mounted on traction means for displacement on land, means to immobilize and level said support base at a desired location, a platform assembly secured over said support base on extendable support means, displaceable bracing means secured between said support base and said platform assembly to maintain said platform assembly substantially stable during displacement thereof and at a stationary desired working elevation with respect to said support base, and a displaceable worker support platform secured to said platform assembly for supporting workers thereon, said displaceable bracing means being constituted by bracing cables secured at one end to said platform assembly and at an opposed end to cable winding means secured to said support base to maintain said cables taut during displacement of said platform assembly and while said platform assembly is stationary at said desired working elevation, said bracing cables being wound about a variable size storage cable loop mechanism of said cable winding means, said cable loop being formed by guiding windings of said cable loop between a pair of parallel mounted cable support spools, one of said spools being a displaceable spool and the other a stationary spool, said displaceable spool being secured to pressure biasing means, a terminal end of said bracing cables being immovably secured to said support base.