Abstract: A corner joint between mitered jambs of a door frame, with claws provided in the miter region of the jamb ends. The claws are designed as tongues cut out of the jambs. The tongues are provided with abutment elements which engage behind the respective adjacent jambs. Further, the tongues and their abutment elements are offset relative to each other and so dimensioned that in assembled state, they engage and snugly fit between the tongues of the other jamb. The manufacture and assemblage of the frame jambs is thereby considerably simplified.
Abstract: A tool for the mitering of frame members has a lateral shoulder cooperating with a lateral guide for the punch so that a vertical bending edge of the latter deform the trim flange of a profile against a rounded portion of a cutting die on which the profile is supported to form a rounded trim edge, simultaneously with the mitering operation.