The Nautical Encyclopedia
Patterson’s Illustrated Nautical Encyclopedia — Howard Patterson, 1891

Three-fold Purchase

Sea Terms

A purchase made of two blocks, each containing three sheaves.

Whips, tackles and purchases — single and double whip, Spanish burton, watch tackle, runner and tackle, two-fold and three-fold purchase
Whips, tackles and purchases — single and double whip, Spanish burton, watch tackle, runner and tackle, two-fold and three-fold purchase
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