Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 122
us with major or long axisF G equal to diameter of the circle, bisect and drawperpendicular to it the minor or short axis. With 30°angle draw F B, G B, F A and G A. These lines willintersect at A and B, thus cutting off the correct lengthof the short axis. With centre O draw circles equal… … 117 Il8 A MANUAL OF MECHANICAL DRAWING. ting A produced in D, draw C D and bisect in E and points of subdivision perpendicularly upon D C. With erect perpendicular. With E for centre and E C for O for centre and radius O G draw semi-circle and sub- radius draw semi-circle and subdivide, and project…
Mechanical drawing
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