Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 33
77. The reverse curves Xig-. SI. M n /o yy ^v^ / m „¥■ \ c, N on the mouldings may be drawn with the irregular curve, (see Art 68);or, if composed of circular arcs to be tangent to vertical lines, by the follow-ing construction: — Let 31 and iV be the points of tangency on the verticals Mm. and…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
