US555631A - Gilbert ii - Google Patents

Description

(No Model.) I

G. H. WILSON. FORBAND AFT SAIL.

No. 555,631 Patented Mar. 3, 1896.

UNITED STATES GILBERT II. IVILSON,

ATENT OFFICE.

OF NEW YORK, N. Y.

FORE-AND-AFT SAIL.

SPECIFICATION forming part of Letters Patent No. 555,631, dated March 3, 1896.

Application filed March 8, 1895.

To all whom it may concern.-

Be it known that I, GILBERT II. WILsoN, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Fore-and-Aft Sails, of which the following is a specification.

My invention relates to fore-and-att sails, and is designed to improve their set and allow the free spill of the wind from the leech or t i foot) Generally stated the improvement consists in arranging the cloths so that the seams are not all parallel, but occupy an angular relation to each other, some of the cloths between the seams appearing as gores-i. 6., wider at one end than at the other. The leech (or the foot, as the case may be) is formed by the ends of the cloths, and as a result of the dis position of the cloths some of the ends forming the leech are bias or cut at an angle and others are cut perpendicularly. Where a jib is made in sections, as is common, each section would be constructed in the manner described, the foot being formed by the ends of the cloths in the same manner as the leech. In the case of topsails the leech may be formed by the ends of the cloths and the seams run at varying angles therefrom to the other edges of the sail.

The accompanying drawing is an elevation of a sloop rigged with a mainsail, topsail, forestay-sail, and two jibs.

The leech of the mainsail A is formed by the ends of the cloths, some of which are cut perpendicularly to their length and others bias or at an angle to the length. Thus the cloths a toward the bottom of the leech and running to the boom have their ends out perpendicularly, or substantially so, in the line of the leech and extend full width to the boom X; but at a higher point on the leech the ends of the cloths a are cut bias, the angle or bias of each cloth running from the top downwardly, and the ends of the cloths adjacent to the boom are narrower than the ends at the leech. In other words, the cloths of this series a are so cut longitudinally as to be narrower at their inner ends, and the seam-lines y converge upon the horizontal line x at the boom, which line is shorter than the line occupied by the ends of the same cloths at the leech. The number of cloths or strips thus disposed is not essential. The

Serial No. 541,041. (No model.)

next series of cloths a have their bias-cut ends at the leech and run full width to the forward edge of the sail. Above this series there are gored cloths a and straight cloths 05*, the gored cloths having their widest ends at the forward edge of the sail.

The forestay-sail B is constructed in a similar manner of straight cloths b, gored cloths 1), straight cloths b and gored cloths b In like manner each section 0 C of each jib C is constructed of cloths c c o 0 The topsail D is formed of straight cloths cl, gored cloths d running from the leech and gored cloths 61 running in reverse direction. In each case shown in the drawing the sail or section of sail is made up of gored cloths running in one direction, straight cloths, and gored cloths running in the opposite direction.

The invention generally stated, irrespective of the specific structure shown and described, consists in having the leech or foot, as the case may be, partly of bias-cut cloths and partly of perpendicularly-cut cloths and running the cloths diagonally across the sails and goring some of them to give the leech or foot the required bias and the sail the required set, so that the leech or foot will lie out relatively flat and easily spill the wind.

Of course the specific arrangement of gored cloths may be varied without departing from thespirit of my invention.

The disposition of the cloths shown brings the weft or filling of the canvas in line of the greatest strain and prevents the sail from bellying.

I claim as my invention- 1. A fore-and-aft sail having cloths, some of which are gored in one direction and some in the reverse direction, and in which the leech or the foot is formed by the ends of the cloths, some of which are cut bias and others perpendicularly or straight across.

2. A fore-and-aft sail having the leech or the foot formed by the ends of the cloths, and in which some of the cloths run at different angles to each other across the sail and others run across the sail with their seams parallel with each other.

In testimony whereof I have hereunto subscribed my name.

GILBERT H.

Witnesses:

W. H. GRIFFIN, EDWARD FITZGERALD.

wILsoN.

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