Architectural iron and steel, and its application in the construction of buildings ... specifications of ironwork ... tables selected expressly for this work ... by Wm. H. Birkmire (1905)
Birkmire, Wm. H. (William Harvey), 1860-1924 · New York, J. Wiley · leaf 151
rs are securedon the inside to ladder by a padlock or chain and padlock. 200. Scuttle Ladder—is placed at the entrance to scuttle,and is made of 3 X 3-inch flat iron, for the sides, and -|-inchdouble rungs, 12 inches in rise. The width of ladder 20inches from outside to outside of sides. To be… … 16 sheet iron. The lower door is fastened to curb by an angle-iron frame \\ X i£ X \ inch thick. 201. Iron Fronts.—Cast-iron for fronts has many advan-tages in its favor—strength, lightness of structure, facility oferection, durability, economy and incombustibility. Previousto their erection in the…
Building, Iron and steel
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