A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 123
Fi^. 124 Problem 9.—A regular vertical triangular prism,with a perimeter of 10^2 and 4 altitude, has its frontface inclined backward and to the left at is. A right 120 MECHANICAL DRAWING square prism of 6^ perimeter and 4 altitude pene-trates the former. Axes of both soHds intersect attheir center… … Fig. 12s CHAPTER X ISOMETRIC WORKING DRAWING A N ISOMETRIC drawing is generally conceded to^^ be a pictorial or perspective representation, andfor practical purposes it has come to be eminently use-ful to the artisan in clarifying hidden constructions.Among draftsmen it has supplemented the…
Mechanical drawing
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