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 36
ance is certainly ingenious. THE HUMBER CHAINLESS. The riders of Humber bicycles now havean opportunity of experimenting at com-paratively small cost, because the makersof the Humber will convert an 1898 chainHumber into a Humber Chainless for $40an 1897 for $50 and an 1896 for $65, or theywill… … HUMBER CHAINLESS. says: The pin gear is particularly valu-able when the pins are made in the formof rollers, for then the minimum of frictionis reached, the friction between the toothand pin, otherwise a sliding friction at aline bearing is, with a roller-pin, a rollingfriction. When properly made…
Bicycles
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