Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 143
Fig. 180. Fig. 181. … Fig. 182. Fig. 183. ORTHOGRAPHIC PROJECTION. 129 may readily be found by trial, draw arcs through the points Gand H and tangent to the two arcs already described. Prob. 41.—To lay off an angle from a corner of the iso-metrical cube. Construct an orthographic square of any convenient size asshown in…