A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 124
AWING 15 COXTENTIONAL. REPRESENTATI0:N^ OF A NUT 22, Fig. 11 shows the ordinary conventional method ofrepresenting a nut. The bottom of the thread is 1^ inchesin diameter and is represented by the dotted circle; thisshows that it is intended for a screw li inches in diameter.The height of the nut… … to / V in the points d, a, and c\ pass arcs of circles throughe and a and through d and a tangent \.o f g, finding the cen-ters of these arcs by trial. The best way of doing this is todraw lines parallel to / v midway between c a and between aand d. Then, by trial with the compasses, find a center…
