Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)
s to set the pencil on the centre-line at thepoint A in Figure 152 and mark the curve 14, and tothem set the compasses by trial to mark the othertwo curves of the chamfer, so that they shall be anequal distance with arc 14 from line 9, and join lines10 and 13 at the same distance from line 9 that… … 1^-^ \ Fig. 154- finished bolts and nuts are mven in the followino- table,Figure 154 showing the dimensions referred to in thetable. EXAMPLES IN BOLTS, NUTS, AND POLYGONS. nyUNITED STATES STANDARD DIMENSIONS OF BOLTS AND NUTS. Bolt- Bolt Head and Nut. Diameter. P ^ Long diameter, /, or diameter…
Mechanical drawing
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