Page:The Cycle Industry (1921).djvu/26

12 Kangaroo, but employed spur wheels with teeth all enclosed in a casing formed by the hub shell. The "Bantam" had smaller wheels and a similar gearing.

Various attempts had been made, about 1876–79, to design an absolutely safe bicycle. H. J. Lawson produced a machine, in 1876, which was practically



equivalent to enlarging the rear wheel of a high bicycle, leaving the front wheel the same size and driving the rear wheel by a lever motion. The lever motion, as distinct from the rotary crank, was the first form of driving medium used on wood four-wheelers prior to the velocipede or boneshaker. Briefly, when brought out on Lawson's rear driven bicycle, it comprised a crank on each side of the hub and keyed to the axle,