Illinois Society of Architects · Chicago · leaf 248
ency, approved by the Commissioner ofBuildings. There shall be one of theseimmediately above the door opening and oneabove the opening near the celling. Wherethe ceiling Is less than three feet abovethe door opening, the last mentioned fusiblelink or releasing device may be omitted. Ifthe doors are… … Fig. 28. DIVIDING WALLS AND IRON DOORS—OPENINGS INSERTED. Section 789c, f. (A) Distance to celling. If A Is less than 3 0 fusible liuli at ceiling maybe omit fell. (B) Steel plate. No. 12 U. S. gange or greater. (C) Continuous 2 x 2 x % Ls. (D) 2 X 2 X % Ls forming panels. Anglesnot less than 2 0…
Architecture · Building · Architects
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