The technic of mechanical drafting a practical guide to neat, correct, and legible drawing (1904)
Reinhardt, Chas. William (Charles William), b. 1858 · New York, The Engineering News Pub. Co. · leaf 34
the chapteron outline shading. Fig. 61 illustrates the use ofpencil guide hues to insure a perfect joint at the points of tangent.It sometimes maybe desirable to in-crease the shadeeffect of pipeflanges, for in-stance, in whichcase freehandshade lines, as inFigs. 60 and 62,parallel to theflange in… … k—-14- Upper Casting. f ^^Sf5teel Forging\j^Brvnze Ring II T r pi Illill v_ <r:: ; k- 9 >
Mechanical drawing
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