MECHANICAL COUPLING ANGLE (PROFILE) JOINT FOR METAL CONCAVE BEAMS

摘要

PCT No. PCT/GR97/00023 Sec. 371 Date Mar. 20, 1998 Sec. 102(e) Date Mar. 20, 1998 PCT Filed Jun. 27, 1997 PCT Pub. No. WO98/03760 PCT Pub. Date Jan. 29, 1998An angular body secures mitered ends of frame members together. A screw in the body displaces rows of balls to engage respective teeth which can be cammed outwardly and engage in opening of the frame members to draw the frame members tightly against one another.