Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 32
ine AC, de- scribe an arc of a circle as ACE, cutting the lineat A and C. Through the center R of the circledraw the line ARE, cutting the arc at point E. Aline drawn from C to E will be the required per-pendicular. To divide a straight line into any number ofequal parts—Fig. 63. Let AB be the… … A D G cFig. 64. number of equal parts required, as A-1, 1-2, 2-D,etc. Join C-1, 2-2, 1-D, the line AB will then bedivided into, the required number of equal parts. To find the length of an arc of a circle^—Fig. 64.Divide the chord AC of the arc into four equalparts as shown. With the.radius AD…
Mechanical drawing · Machine design
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