Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 145
L DRAWING in the mean position of the mechanism the coup-ler, BD, is parallel to the fixed link; but, unlikeTchebicheffs, the levers are not crossed. Thetracing point A does not lie in the coupler, but atthe apex of the isosceles triangle BAD, the apex ofwhich lies on the line of centers PiP2- For… … rig. 220. that the links BA and AD must be equal in lengthto either of the levers, and that the coupler mustbe half the length of the fixed link. Also, to allowthis extent of motion, the levers must not be lessthan a certain length, which will depend upon thelength of the coupler. As a limiting…
Mechanical drawing · Machine design
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