Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 118
m. Solution.—Draw the plan and elevation, abc andabci and describe the arc ABC,the length of which is equal tothe circumference of the circleab. Divide the plan into anynumber of equal parts, and drawradial lines to the center c.Draw elevations of these linesin c1-7, c2-6, and r3-5. DivideABA into… … yi|U 2,10 3|9 L!ib CONSTRUCTIVE DRAWING. 117 a, 1-7, 2-6, and 3-5. From C lay off the distancesca, cl, e2—cf7, ca. Join the points just foundby a curved line, a1234567a and ABAaa, the
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-123-337.webp)
