Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 47
Fig. 59.—A half-section. … Plug Wrench Fig. 60.—A detail drawing. 45 is termed a line of intersection, such a line being common to both sur-faces. In representing an object by orthographic views it is frequently neces-sary to obtain the projection of such lines of intersection. In generalthis can be done by so passing a…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
