Improvements in or relating to devices constituting corner pieces obtained by foldingsheet-metal stock,and structures obtained therefrom

摘要

1,079,440. Sheet jointing pieces. TECHNIGAZ. Aug. 13, 1965 [Aug. 17, 1964], No. 34747/65. Addition to 1,061,577. Heading E1K. A corner piece of corrugated sheet metal for joining adjacent corrugated sheets at an angle has three or more parallel folds XAX', YA'Y', XI A" XI' parallel to the corrugations and perpendicular to the corner between the sheets Z Z', the folds merging with themselves by crest AB, A'D, BA", DB A'D and trough AD', D'A", AD, DA", AA', A', A" lines. The corner pieces may be folded for corrugations of triangular or trapezoidal section on the same or opposite sides of the corner piece.