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)
Fi J g. lOO. … Fig. 102. while in Figure loi the shade line is shown appliedto a nut. The shade line may be produced in straightlines by drawing the line twice over, and slightly in-clining the pen, or by opening the pen points a little.For circles, however, it may be produced either byslightly moving the centre…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
