Elementary projection drawing. Theory and practice. For preparatory and higher scientific schools, industrial and normal classes; and the self-instruction of teachers, inventors, draftsmen, and artisans. In six divisions .. (1880)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 226
idbetween those shown. It would then be two-threaded. Ex. 9. To Construct the Projections of a Triangu-lar-threaded Screw. PI. XIX., Fig. 1. The construction of the screw consists principally in that of itshelices. Accordingly, let AE and AC be the radii of the circleswhich represent the circular…
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
