The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 402
d of the angle of extrado, the results ob-tained by both formula apply to the taiigtnts of the joint lines in theface, drawn from the points at which the joints intersect the intrado,and these results are theoretically true, though not available in thepractical working of the case. The formula tan.… … 1 * The dotted line ii p should be produced to r. and V u produced fo (—thedotted line/// should be a full line. Let L M (fig. 4) be the elevation of the face of an oblique arch, ona plane at right angles to the axis of the cylinder on which it is formed,n u being the radius. From the point K in…
Architecture · Civil engineering · Science
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