History of Roller Chains: Invention & Evolution (1880)
The roller chain was invented in 1880 by Hans Renold, a Swiss engineer who was working in Manchester, England. Renold's invention was a significant improvement on the existing chain drives of the time, which were prone to slipping and breaking. The roller chain used rollers to reduce friction between the chain and the sprockets, resulting in a more efficient and reliable drive system.
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