Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 110
equalto the divisions of the arc in the plan Fig. 128, and from thesepoints draw lines to 4, the center of the arc. Then withradii A-a> b, c, d, e, respectively, on the elevation Fig. 128, OR THO GRA PHI C PR OJE CTION. 95 and center 4, draw arcs intersecting the lines drawn from thearc XX to… … Fig. 130. Divide the semicircle of the plan into any number of parts,then with A as center and A 1 as radius, draw an arc and layoff upon it from the point 1 the divisions of the semicirclefrom 1 to 9, draw gA. Then with center A and radius ABdraw the arc BC. iBCg is the development of the half…
