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An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)

Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 388

An illustration from An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth, 1888, leaf 388
ng found B/« = 22l, we have the value of 7j = 22-^ x 9 = 201 ;and 2fi = 402. 140;5. This model was of the same dimensions as the preceding: b, which represents Tfx AB, will be 769-5; —^ will be 6-41, and A 7J9> ^ — loir = 41 -11 These values substituted in the formula give x= a/402 + 41-11 —6-41… … Form of Arcli. Thickness of the Iii- 1s. • By the formula. By Ixperiment. Geometrically. l.inps. Lines. Lilies. T.ie pointed 12-46 14-00 15-88 . The catenary 14-64 15 00 20-05 The cycloid 14-66 15-00 17-24 The parabolic 15-85 16-50 21 -SO The elli])tic 16-77 17-00 18-75 The cassinuid 19-62 21 00…

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