Hatfield, Robert Griffith, 1815-1879. [from old catalog] · New York & London, Wiley and Putnam · leaf 187
n of an extensive dome, an iron band should beplaced around the framework at that height; and whatever maybe the form of the curve, a band or tie of some kind is necessaryaround or across the base. If the framing be of a form less convex than the curve ofequilibrium, the weight will have a tendency… … 307.— To describe a cubic parabola. Let a b, {Fig, 220,) bethe base and b c the height. Bisect a b at d, and divide a d into100 equal parts; of these give d e 26, e/18^,/ g 14|, g h 12^,hi lOf, ij 9 J, and the balance, 8f, to j a; divide b c into 8 equalparts, and, from the points of division, draw…
Carpentry · Architecture
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