Notes on practical mechanical drawing, written for the use of the students in general engineering drawing in the University of Illinois (1907)
Wilson, Victor Tyson, 1864- [from old catalog] · State College, Pa., The author · leaf 111
Irregular Curves and Geometrical Drawing 103 tangent at A is perpendicular to the directrix. If the circlecontinued to roll on AB it would generate another loop, andthe point, A, would be a cusp of the curve. In gear design,only a small portion of the curve, in the neighborhood of Aor B, would be…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
