Capstan
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A capstan is a mechanical device used to pull on a rope or chain. It is capable of exerting great force on a rope and thus lifting heavy weights or pulling a vast load. The capstan is used to “weigh” or lift the anchor or other large loads. The capstan consists of a head and a barrel. The head has holes around its periphery. Long bars are shipped or placed into these holes. If the ends of the bars are secured to each other, they are “swifted”. Sailors push on each of the long bars. The mechanical advantage of the capstan is achieved by the length of the bars. Beneath the head is the barrel. The rope or chain to be pulled on is wrapped around the barrel. To “paul the capstan” is to put pauls into place on the capstan. These stop the capstan from turning in the reverse direction. <ref>Smyth, W. H. (William Henry), 1788-1865 Admiral. The Sailor's Word~Book. Blackie and Son, Paternoster Row, 1867 Reprinted by Algrove Publishing Limited Almonte, ON Canada 2004. ISBN 1-897030-05-3</ref> | A capstan is a mechanical device used to pull on a rope or chain. It is capable of exerting great force on a rope and thus lifting heavy weights or pulling a vast load. The capstan is used to “weigh” or lift the anchor or other large loads. The capstan consists of a head and a barrel. The head has holes around its periphery. Long bars are shipped or placed into these holes. If the ends of the bars are secured to each other, they are “swifted”. Sailors push on each of the long bars. The mechanical advantage of the capstan is achieved by the length of the bars. Beneath the head is the barrel. The rope or chain to be pulled on is wrapped around the barrel. To “paul the capstan” is to put pauls into place on the capstan. These stop the capstan from turning in the reverse direction. <ref>Smyth, W. H. (William Henry), 1788-1865 Admiral. The Sailor's Word~Book. Blackie and Son, Paternoster Row, 1867 Reprinted by Algrove Publishing Limited Almonte, ON Canada 2004. ISBN 1-897030-05-3</ref> | ||
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Revision as of 19:07, 5 January 2009
A capstan is a mechanical device used to pull on a rope or chain. It is capable of exerting great force on a rope and thus lifting heavy weights or pulling a vast load. The capstan is used to “weigh” or lift the anchor or other large loads. The capstan consists of a head and a barrel. The head has holes around its periphery. Long bars are shipped or placed into these holes. If the ends of the bars are secured to each other, they are “swifted”. Sailors push on each of the long bars. The mechanical advantage of the capstan is achieved by the length of the bars. Beneath the head is the barrel. The rope or chain to be pulled on is wrapped around the barrel. To “paul the capstan” is to put pauls into place on the capstan. These stop the capstan from turning in the reverse direction. [1]
Notes
- ↑ Smyth, W. H. (William Henry), 1788-1865 Admiral. The Sailor's Word~Book. Blackie and Son, Paternoster Row, 1867 Reprinted by Algrove Publishing Limited Almonte, ON Canada 2004. ISBN 1-897030-05-3
