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 100
adaptability and its cumbersomeness, as wellas large cost. It consists, fundamentally, of two tracks orguides at right angles to each other, and which constitutethe major and minor axes. A third member, an arm, carries Irregular Curves and Geometrical Drawing 91 a marking point while two wheels, or… … readily seen after a description of its practical equivalent(see Fig. 18). Take a piece of paper as a straight edge, and mark onit a point P. From P lay off a distance. Pa, equal to a, andalso a distance, Pb, equal to b. Then with b touching themajor axis, and a the minor axis, P will be a point…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
