The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 302
lars from the several points of division in a b,at the points, o, o, o, &c. Then a curve traced through thesepoints will be the one required. 394.—Small domes to light stairways, &c., are frequently madeelliptical in both plan and section; and as no two of the ribs inone quarter of the dome… … Fig. 247. ot one of the ribs. Then take e/for the transverse axis anatwice 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. b 4
Carpentry · Architecture
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
