The Modern bicycle and its accessories; a complete reference book for rider, dealer, and maker (1898)
Schwalbach, Alexander, Wilcox, Julius, Commercial advertiser association, New York · New York, The Commercial advertiser association · leaf 107
m … THREE-POINT BEWARING; COMMONFORM AT LEFT—POSSIBLE IMPROVE-MENT AT RIGHT. allow rolling of the balls, although it is lessfacile and manageable than the others; thefour-point is the best theoretically andseems easiest to construct. The cornerpattern we have felt obliged to condemnwill go after a…
Bicycles
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