Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 165
Fig. 178. Shaded Elbow Joint Fig. 179. Shaded Section of Hollow Sphere center toward each side, thus showing that the cylinder is convex.The effect is intensified, however, if the elements are made heavier,as well as closer together, as shown in Figs. 175 to 181. 125 106 MECHANICAL DRAWING Fig. 175… … Fig. 180. Shaded Sphere
Architecture · Building
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