he said tube, 6 T. To this tube is fixed an more ground than the rider of a 70 gear machine, at iron rod, 6 ¢, whose extremity, ¢, carries a lead weight, each revolution of his cranks, he has to exert theoreti- 7. To the extremity, 6, is fixed an iron pin supporting cally one-seventh more pressure… … will be produced, and the dently, if the driving BICYCLE GEARS AND THEIR EQUIVALENTS. tube, 6 I, will revolve fur- wheel, or gear, be increas- ther, so as to bring its cor- ed, the length of the crank responding aperture beneath 6. Then the wine con- should be increased iu like proportion if the…
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