Pipe connection system for tubular framework has two cast members with straight plug ends and forty-five degree bends and flat butting surfaces at forty-five degrees to ends

摘要

The first (2) and second (3) members each have a forty-five degree bend. They have straight plug ends (4) and are made of cast material. The butting ends (1) have flat rims (5) at forty-five degrees to the straight plug ends. The abutting ends have flat partitions with bores accommodating fastening screws. The two members are rotatable with respect to each other on an axis at right-angles to the butting plane.