Notes on practical mechanical drawing, written for the use of the students in general engineering drawing in the University of Illinois (1907)
Wilson, Victor Tyson, 1864- [from old catalog] · State College, Pa., The author · leaf 53
-44 Notes on Practical Mechanical Drawing Where more than two surfaces are contiguous to oneanother it is customary to use 30° or 60° Hnes to distinguishthe third surface, but these angles are not resorted to unlessit is necessary. Sometimes contiguous surfaces, especially when large,are… … lines fall uniformly short of the limiting lines of the surfaceby a small distance, say V32 ^^ Vie of ^^ \\\q^ as shown inFig. 5. A section may be designated as a longitudinal ortransverse section according to whether the plane of the sec-tion is parallel to the long axis of the subject or at right…
Mechanical drawing
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