Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 245
Fig. 136. Fig. 137. view from 1 to 4. From these intersections parallel to II 1.draw lines indefinitely intersecting 1 L from 1 to 4. At rightangles to N L produced draw the line at c d^ on which a truesection must be obtained at right angles to the line of the gussetsheet. Measuring from the line…
Architecture · Building · Carpentry
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