Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 130
First-angle versus Third-angle Projection, or English versics American Practice.—The expedieat we employed in Fig. 290ill getting clear ideas about the relation of plan to elevation may be now carried a step further. The first glance at that figuremight suggest that the horizontal and vertical… … p N- REAR H / b^ ^ V y FRONT a I^JAnqle A -<s< H -^aJ ^^.A/vece -< <« 77777777^777777/ -Y --i P.I Fig. 326.- -Piotorial view of planes ofprojection. Fig. 328.—Third-angle projec-tions of point B. Fig. 327.—End view of planesof projection. Fig. 329.—tion (t First-angle projec-of point A.…
Mechanical drawing · Geometrical drawing
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