Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 227
ly deter- 214 MECHANICAL DRAWING mined by using the formulas given. First obtain the dis-tance across flats w (see drawing A) which equals ijd + |inch; now with this dimension as a diameter draw the circleb. Next complete the hexagon which forms the plan view ofthe head by drawing lines tangent to… … «s c =» -Iff- 1 S S 1 1 / •i *e W 3> w 10 ■< 2 * ^ 2 t \ / 1 <?> •*■ Machinery Fig. 11. Proportions of U. S. Standard Hexagon Bolts and Nuts Now draw the lines at right angles to the center line whichdetermine the thickness of the head. Referring to the illus- tration it will be seen…
Mechanical drawing
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