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 173
r/g. 366 108. Space 11x 14. Drawa plan view and a sectional ele-vation for the elliptical coverplate shown in Fig. 389. Out-side dimensions 7 x 9. Six^Vie inch holes for bolts. Therise in the center is elliptical inplan. The bolts are to be spacedequal distances apart. Drawfull size. 109. 11 X 14… … rig. S89\ 4J /fietr/fr /^ /?
Mechanical drawing
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