Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 443
Fig. 200. S-Pattern Trap. Fig. 201. A Bag Trap. when the ends are at D and C, it is said to be a half-S or P trap;when the ends are set as at D and E, it is called a f-5 trap. F is aclean-out screw for emptying and cleansing. The distance representedby X should, in a trap for ordinary purposes, be…
Architecture · Building · Carpentry
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