Beam for a lifting construction for heavy loads, or for a pusher construction for heavy loads, or forming part of a beam of a stationary or revolver crane

摘要

Beam at least comprising a first chain of mutually swivable elements, wherein the beam comprises a second chain of mutually swivable elements, wherein the elements of the first chain and second chain are correspondingly shaped and wherein the first chain and the second chain are convertable between a disengaged position in which the first chain and the second chain are separate from each other, and an engaged position in which the first chain and the second chain are in an interlocking assembly with each other.