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 116
Eig-. 233- … is the plane area which, folded on lowing construction to ascertain it: Draw vv^ ijeri^endicular tovb, and make it equal to x; v,b is then the real length ofthe edge, shown by rabatment about v b. The develojmient of the pyramid (Fig. 233) may be obtainedby drawing an arc ABCA^ of radius = Ui6 (the…
Mechanical drawing · Lettering
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