Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 317
(( I: … Fig. 667. punched links with teeth between each link, especially adajoted to positionwhere the stress is great and the movement slow, for which they can readily beproportioned. The same class of wheel and chains are made light and used as in bicycles,and driven at considerable speeds with little…
Mechanical drawing
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