Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 62
rap. -V t— T ki-4-g -■\-- Fig. 104 inch^ right hand. This may be abbreviated to 12 Thds. R. H.or 12 Thds. L. H. Sometimes the number is given for U. S.Standard as indicated in Fig. 96, or the Roman numeral may beused, as in Fig. 95. Three representations for square threads are shown in Figs. 101, k … r/g. 105 Fig. /06 102, and 103. The square threads are generally drawn to scale,and if of large diameter the helix may be drawn in, as in Fig. 92. Threaded Holes. — Representations for threaded holes areshown in plan, elevation, and section, in Fig. 104. It will beobserved that the lines…
Mechanical drawing
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