Wheels and wheeling; an indispensable handbook for cyclists, with over two hundred illustrations (1892)
Porter, Luther Henry · Boston, Wheelman Company · leaf 108
LE. 87 though several makers showed more originality in pro-ducing frames which gave promise of the diamondvariety afterward so popular. The cross frame, if stayed to both the crank axleand the top of the seat pillar, gave a sort of triangle atthe rear, and led to an early modification in… … Semi-diamond Frame Safety. lower end of the upright pillar so that the ends of thecrank axle are carried by arms. The type of frame known as the diamond, how-ever, soon supplanted all others in popular favor. Itwas, at first, nearly a true diamond in shape, theupper and lower tubes coming together…
Cycling · Bicycles
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