Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 188
of one of the ribs. Then take e / for the transverse axis andtwice the rise, o g, of the dome for the conjugate, and describe,(according to Art, 115, 116, &.c.,) the semi-ellipse, e g f^ whichwill be the curve required for the rib, e g f. The other ribs arefound in the same manner. … Fig. 222. 310.— To find the shape of the covering for a sphericaldome. Let A^ {Fig. 222,) be the plan and B the section of agiven dome. From a, draw a c, at right angles to a b ; find thestretch-out, {Art. 92,) of o b, and make d c equal to it; divide thearc, 0 b, and the line, d c, each into a…
Carpentry · Architecture
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