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 166
, for the ordinate of the middlepoint of the arc. D E is not an isometric plane, hence to reach E from Awe make AT=at; Te^te, and eE^ay (the dis-tance of e from the plane a 6). The remainder of the construction is but a duplication ofone or other of the above processes. The principle that lines… … // a X z > \m } / r—/-^ / / K 1 \ n s A h / : 1 \ 246 THEORETICAL AND PRACTICAL GRAPHICS.
Mechanical drawing · Lettering
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