Box and corner clamp retaining box to form

Claim 1

A clamping means for the corners of containers and the like, rigidly clamping the walls of the container to form, comprising, a corner clamp for each corner of the container, each clamp being L-shaped in plan view and of a downwardly opening generally U-shaped form in cross section and including webs conforming to the corner of the container and extending along the tops of the walls thereof, having inner and outer legs depending therefrom arranged to extend along the inner and outer sides of the adjacent walls of the container at a corner thereof, the inner legs being shorter than the outer legs, said webs having spaced embossments extending transversely thereacross and extending inwardly of the top surfaces of the webs, and said inner and outer legs having parallel embossments extending therealong and outwardly of the legs and in alignment with the embossments extending across the webs, the embossments extending along the outer legs being longer than the embossments extending along the inner legs, and the outermost embossments of the inner and outer legs being longer than the innermost embossments, integral locking means on the outer legs beneath the outermost embossments, and integral locking means on the inner legs disposed beneath the innermost embossments.