Mechanical drawing for plumbers; a concise, comprehensive and practical treatise on the subject of mechanical drawing (1910)
Starbuck, R. M. (Robert Macy), 1844-1927 · New York, The Norman W. Henley publishing co. · leaf 98
i-cc Coxx.cxfe.-tfc. S-cub SoilC.t,Yla.TC 3oUom EiTi.txa.-n.tt ^m^mm. … CoTi_cxfe.tfc.CfcA^a^-r^S> otto Ton. 1-n.to TCLa.v«- 33;T&-vrt_ rect to the cellar drainage well, so thatin the event of a drought and the conse-quent evaporation of the trap seal, theseal may be renewed. With the main trap, however, this dan-ger is not so much to be feared, for themain trap…
Plumbing · Mechanical drawing
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