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)
r-ried up from the face of the shoe. The distance Kbetween these dotted lines is the amount of motion ofthe shoe. In Figure 260 we have the same conditions as in Fig-ure 259, but the short arm has a roller acting against alarger roller R. The point H is found as before. Theamount of motion of R is… … In Figure 261 a link is introduced in place of the rol-ler, and it is required to find the amount of motion ofrod R. The point H is found as before, and then thelength from centre to centre of link L is found, andwith this radius and from H as a centre the arc P
Mechanical drawing
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