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 160
wisted in a machine, and completed in aboutfifteen seconds, in one heat, without hammering. They are ofuniform strength and fitted to beams. The following sizesare commonly used: CHIMNEY CAP. I4I Size of Beam. Size of Iron. Size of Beam. Size of Iron. 4 X 10 X 4 ....2 xr 6 X 12 X6.. ..2fxr 4 X 12 X…
Building, Iron and steel
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