Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 33
other as A-2, C-2, B-3, D-3, etc., alsoB-1, D-5. Describe the end arcs A-1, E-5 with a radius equal to B-2. Lines joining A-1, B-2, C-3,D-4 and E-5 will all be radial.To inscribe any regular polygon in a circle— Fig. 66. Divide the diameter AB of the circle intoas many equal parts as the polygon is… … cumference of the circle D. A line drawn fromB to D is one of the sides of the polygon. To cut a beam of the strongest shape from a cir-cular section—Fig. 67. Divide any diameter CBof the circle into three equal parts as CF, FE andEB. At E and F erect perpendiculars EA and FDon opposite sides of…
Mechanical drawing · Machine design
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