The tricyclists' indispensable annual and handbook; a guide to the pastime, and complete cyclopaedia on the subject (1883)
Sturmey, Henry · Coventry, Iliffe; Hartford, The Overman Wheel Co · leaf 85
covering in these boxes and shut- ting up therein metal discs having four portions removed from their circumferences, thus leaving a like number of cavities — circular at one end and angular at the other — between the outer edge of the disc and the inner circumference of the box. In each cavity a… … THE “ CHEYLESMORE ” GEARING, to the wheel. Should the wheels run faster than the cranks, or the latter be turned backwards, as in back-pedalling, the balls are brought
Tricycles
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