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 166
idewalk doors. Illuminating vaultcovers with and without frames, from 12 to 36 inches in diam-eter, are frequently used. The glass is round or square, andset either in plain iron lights or concrete illuminating lights.The concrete light is an inch and the iron light •§ inch thick.All the above… … ■$r X f-inch flat iron, the frame on outside |X i| inches, thewavy bars f X f inch, and the cross-bars f X i| inches. Tosecure the frame to jamb, expansion bolts or lag screws maybe used as shown in the plan. I48 ARCHITECTURAL IRON AND STEEL. 228. Dwarf Doors—are generally placed below the…
Building, Iron and steel
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