Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 240
methodsimilar to the following is used for obtaining the arcs for the patternin all cases where the taper is so slight as to render the use of acommon apex impracticable. Let al c rZ. Fig. 130, be a reproduction oia h <■ d in Fio-. 120.On either side of a <1 and h c. in Fig. 130, place… … Fig. 130, them by arcs struck from a and I as centers, with radii equalrespectively toal and I a as shown. In precisely the same mannerobtain the intersection c and d at the bottom. Xow through theintersections h aha and d c d c draw the curve as shown by bend-ing the straight-edge or any straight…
Architecture · Building · Carpentry
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