Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 278
draw the outer curve f, g, h.The camber slip is based on the principlethat all angles in a segment of a circle areequal to one another ; so by having a longand wide slip tapering both ends, themiddle pin marking the rise could be dis-pensed with ; but such a slip is unwieldy, asonly half its length… … Fig. 840.—Method of Setting Out Ellipse byIntersecting Lines. -| in. per foot of span. The method lastdescribed is about the only way in whichthis arch can be expeditiously set out. Setting Out Curves for EllipticalArches. Commonly, an ellipse is set out fromthree centres with compasses, but a…
Carpentry · Joinery
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