Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 147
heir vertical projections areon the under edge of the prism, hence these points are projectedacross to obtain the lower curve. In Fig. 142 is given the development of the prism from its.right- Ill 92 MECHANICAL DRAWING ha nil end to its intersection with the cylinder, beginning at the leftwith the… … /4- 3 Fig. 142. Development of Prism Shown in Fig. 140 The parallel lines drawn on the surfaces of the prism must appear onthe development their true distances apart, hence the distances a^^({/, d/ e/, etc., are made equal to a d, d e, etc., on the development.The actual distances between the…
Architecture · Building
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