Illinois Society of Architects · Chicago · leaf 249
-eighths inch rivets spaced four inchesto six inches between centers. Pairs ofswinging doors shall be so constructed thatwhen the doors are closed, they will be ofstrength equal to that of a single door, andshall be so arranged that they will operateautomatically. All doors shall be hung onwall… … Fig. 29. Fig. 30. Fig. 31. DIVIDING WALLS AND IRON DOOKS—OPENINGS INSERTED—(Continued).Section 789j. Fig. 29. Tin-clad Doors. (A) Three thicknesses of 13/16 required. (B) Boards not wider than 8. Outside layersvertical and Inside layer horizontal laid. (C) Nails clinched as (G). Fig. 30. Single…
Architecture · Building · Architects
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