A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 46
MECHANICAL DRAWING 43 axes. With A as a center and AB as a radius, drawan arc through BE. Bisect CE at F and describe anarc with CF as radius. CG = AB and is 1 to CD.G-3 is 1 to BC, and where G-3 intersects CD at i is apoint of the first center of the elHpse. Where it cutsAB at 3 is another. Make… … Fig. 43 N. With I as a center and i-N as a radius strike arcat 2, which is another point of a center for the elHpse.With the construction duphcated on the right of theillustration the remaining centers are determined.Points I, 2, 3, 4 and 5 are the required centers, and allarcs and facing stones…
Mechanical drawing
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