Wheels and wheeling; an indispensable handbook for cyclists, with over two hundred illustrations (1892)
Porter, Luther Henry · Boston, Wheelman Company · leaf 141
heavy a machine. The change ofgear was effected by working a small lever, acting inconnection with the box on the axle. This box is inthree parts. The two outer portions have each teethnotched internally, while the middle one is plain. Bymoving the small lever downward it forces a pawl intoaction,… … T-frame Sociable. nearest the rider, and the machine is then drivingequal to a 38-inch wheel. The lever can then bemoved to the center, which position leaves the pawlin the center of the middle portion of the box, so thatthe wheels run free, neither side driving, and the ped-als act as foot-rests.…
Cycling · Bicycles
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