Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 251
the side walls at the spring-ing line. When, however, the two vaults intersect each other, theside walls must stop at the points where they meet, and a square orrectangular area is left which has no vertical walls around it Thecovering for this area must be supported at the four corner pointsin… … Fig. 265. One Method of Cradling forGroined Ceiling Fig. 266. Another Method of Cradling forGroined Ceiling in the figure. Diagonal ribs A D and C B are put in place so as tospan the distance from corner to corner and these form the basisfor the rest of the framing. They must be bent to such a…
Architecture · Building
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