GRILLWORK

摘要

building structures. SUBSTANCE: grillwork has girths and bars of triangular grill; grill bars are made of strip stamping bent in opposite directions over two parallel lines. Each end of grill bar is butt- joined through one flange across girth section and through other flange, to side surface of same section with flange overlapping the latter. Overlapping flanges are arranged to the left and to the right of girth section at grill bars converging at one node. EFFECT: facilitated fastening of grill bars. 4 dwg