US Patent: 31,759
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| Spring-tackle for the sheets of fore-and-aft-rigged sails
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Patentee:
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| William Woodbury (exact or similar names) - Gloucester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Mar. 19, 1861 |
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Jeff Joslin
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Description: |
| "In vessels rigged with fore and aft sails attached at their lower side to a boom (for example the mainsail of a sloop or schooner) the sheet which is used to control the position of the boom and with it that of the sail, is rove through a block attached to the boom, and through another one connected with a traveler; this traveler is usually a stout iron rod secured at each end to the inner side of the stern or to the deck of the vessel and raised a little from it, so that the traveler block which is attached to it by a ring may slide freely from one end to the other of it, as the boom is shifted from one side to the other of the vessel as she goes on different tacks. As the boom passes over from one side to the other, the traveler block is brought up violently against the end of the traveler, and in rough weather this sudden surge is liable to part the sheet, break the boom, or tail the sail, either of which accidents may endanger the safety of the vessel and her crew. The object of my present invention is to relieve the vessel as much as possible from this violent jar and her rigging from the wear and tear incident thereto; and my invention consists in combining with the traveler and sheet a spring or springs which shall receive the first shock as the sail fills and relieve the sheet from the sudden jerk and strain which it usually receives..." |
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