Block and tackle

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“Combinations of pulleys are made in great variety. In the forms most commonly used, one continuous cord passes around all the pulleys. Frequently two or more sheaves are mounted in the same block and turn on the same axis, as in the common block and tackle.” — Avery, 1895




Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 142


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