Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 91
Fig. 27. … PROJECTION. 73 mined arc draw lines to the center 0. Now take a radius equalto O-D of the elevation drawing and describe the arc C-C, ter-minating in the radial lines from the center to the extremes ofarc B-Bf. To allow for lap, produce the arcs C-C and B-G asshown, and terminate them with a line…
Mechanical drawing
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