Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 481
Fig. 1092. … Ftg. 1090. 3-way Ts, or single branches. The branches may beof any appropriate size. In ordering, designate diam-eter of main pipe first, and then that of the branches.It is very common in these pipes to make all of theends bell ends—it saves sleeves when pipes are cut, asthey usually are at street…
Mechanical drawing
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