Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 226
ual to inches. In thiscase 7y equals 2^ inches; (any fraction up to the ^ inch is not 182 SHEET METAL WORK 111 taken into consideration, but over ^ inch one is added). Thereforefor 2^ inches use 2. Then divide the distance from e to 7 intotwo parts as shown at i and through i parallel to c D draw a… … Fig. 118. 9. From i drop a vertical line intersecting F II in plan at 23.Then using F as center draw the arc 23 17 as shown, which rep-resents the measuring line in plan on i in the stretchout. The student may naturally ask, why is i taken as the measuringline in plan, when it is not a stationary…
Architecture · Building · Carpentry
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