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 134
* In the iuterest of compactness the Fii-st Angle position of the views is ;employe(l in Figs. 250, 253 and THE DEVELOPMEST OF SURFACES. 153 417. The development of an oblique pyramkl. … The development will evidently consist of a series oftriangles having a common vertex. To ascertaintlie length of any edge we may carry it into orparallel to a plane of projection. Thus in Fig. 2.52 theedge vb is carried into the vertical jjlane at vh. Itstrue length is evidently the hypothenuse of…
Mechanical drawing · Lettering
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