William Spears Simpson
William Spears Simpson, English inventor of the cycle lever chain, similar to the one cyclist use today, formed by linked triangles with two levels, inner level was driven by the chain-ring and the outer drove the rear cog
Picture No
11939598
Media ID
47660932
Size
3869px x 5399px
(2.4MB)
Credit
Mary Evans Picture Library
Source
Photograph by H.s Mendelssokn in St Paul's', 27 June 1896, page 618
Date
1896
