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 110
e madeof wood and covered with sheet iron No. 16 to No. 20 gauge.The strength of the angles to support the superstructure neednot be taken into consideration : those adopted will be foundsufficiently strong for the requirements. Angles of 3 X 4 ELEVATOR ENCLOSURES. 91 were selected for practical… … side supports on each story at that point; out these are fre-quently omitted when the mason leaves vertical openings, thewidth of terra-cotta blocks by 18 inches in height, every 4 or 5feet apart in the height of enclosure., 92 ARCHITECTURAL IRON AND STEEL. The cross-pieces on side elevation extend…
Building, Iron and steel
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