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 66
s of the diameter are obtained from theconstruction, as indicated. The distance across corners is gen-erally found by construction, as indicated in Fig. 110, by drawinga line xy at 30 degrees with the base of the head. x-z = one half distance across flatsx-y = one half distance across corners It… … h-^-
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
