Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 31
L, draw AD through L. The angle DAC is 45°—Fig. 59. To construct an angle of 90°. With radius AEand centers A and E, describe arcs intersecting atF, with the same radius and center F describe thearc AGD, with radius AE, lay off AG and GDand join DA. The angle DAG is 90°—Fig. 60. 28 GEOMETEICAL…
Mechanical drawing · Machine design
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