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)
ted, with reference to the curvesfor a spur wheel. But if it is required to do soconstruction to find the curves is as shown in Figurein which let A A represent the axis of one shaft,and B that of the other of the pair of bevil wheels thatare to work together, their axes meeting at \Y ; drawthe… … Fig. 241. the point W and the point T, where the pitch circlesor lines E F meet, and G G will be the line of contactof the tooth of one wheel upon the tooth of the otherwheel; or in other words, the pitch line of the tooth.Draw lines, as H and I, representing the toothbreadth. From W, as a centre,…
Mechanical drawing
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