Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 310
j)la«-e the stretch-out r)f the pnifile A or .\,with all the jioints of in-tersection on the wash1 2. At right angles to .1 K. an<i tlirough the lunnbercd jxiints. drawlines as shown, which intersect by lines drawn at right angles to 11I from similarlv ninnbercd interM-ctions in the j«»int-line… … •Jl» 218 SHEET METAL WORK
Architecture · Building
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