Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 324
s inclined at 50\ First Method.—Begin with the rabatment, a circleA0B0, i\ diameter. Take twelve equidistant points onthe circumference of this circle, as shown. Find the plansand elevations of these points when the plane of rabatmentis turned back into its original position 7th, inclined at 50°.… … 0 0o Second Method.—Begin by drawing an edge eleva-tion of the circle, the line ab, 1^ long, inclined at 50.On ab draw a semicircle, which divide into six equalarcs as shown. From the points of division draw linesperpendicular to ab, intersecting the latter in o, 1, 2. Conceive o, 1, 2 as the…
