Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 175
sect the chord in c, and erect the perpendicularc D : join A D, D B; drawi A h perpendicular to A D, and B i perpendicular to B D;erect also the perpendicular*Aw, B n ; divide A B andh i into any number of equalparts; draw the lines 11,2 2, and divide the lines A 7?,B ??,, each into half the…
Engineering · Mechanical engineering
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