A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 227
. arrows, the form C will still be preferable to 7j or A. 49, When the flow in one of the branches / is to con-tinue in the same direction as in the main ^, the otherbranch should be curvedas shown at £•, in thestyle D. When a branch is tobe taken from a main, asin Fig. 9, it should beattached at…
Architecture · Building
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