Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 84
and holding a quite uniformspeed until near the end of tiie stroke. Fig.135 shows that the same motion derived froma simple crank is not as uniform. When the gears are arranged in a train,Fig. 137, the quick return ratios can be de-termined by the construction shown by Fig.136. Dr-diW Fc at right… … Quick return crank ^ig. 134:, Ordinary crank Fig, 135, Draw eEf, and «4 and 64 will give the ratio for thefourth gear. And so on, in the same man-ner, as far as desired, the ratio being greatlyincreased by each gear that is added to thetrain. If carefully performed, the graphical pro-cess is quite…
Gearing
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