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)
wn in the order indicated by the letters in Fig-ure 1S9, the example being given for practice. It iswell for the beginner to draw examples of commonobjects, such as the hand hammer in Figure 190, or thechuck plate in Figure 191, which afford good exam-pis in the drawing of arcs and circles.… … Fig. 191 a. In Figure 192 is shown the pencilling for a linkhaving the hubs on one side only, so that a centre line u5 MECHANICAL DRAWING SELF-TAUGHT. is unnecessary on the edge view, as all the lengthsare derived from the top view, while the thickness ofthe stem and height of the hubs may be…
Mechanical drawing
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