Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 385
818 228 SHEET METAL WORK tained, as shown from 1 to 8, thus giving the profile M, or true sectionsat right angles to F D. For the pattern, proceed as follows: At right angles to F D,draw the line H K, upon which place the stretchout of the profile M, asshown by the figures. At right angles to H K,…
Architecture · Building · Carpentry
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