US56754A - Improved construction and rigging of trestle-trees for vessels - Google Patents

Description

PATENT OFFICE.

JOHN M. HUDSON, OF NEW YORK, N. Y.

IMPROVED CONSTRUCTION AND `RIGGING 0F TRESTLE-TREES FOR VESSELS..

Speciication forming part of Letters Patent No. 56,754, dated July 31, 1866.

To all whom it may concern:

Be it knownthat I, JOHN M. HUDSON, of

the city, county, and State of New York, have invented a new and improved mode of constructing and rigging the trestle-trees of Vessels and of adapting the connecting-rigging with the lower mast-h eads, the heel of the topmasts, and the working of the top-sails; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying' drawings, and t0 the letters of reference marked thereon.

The nature of my invention consists in putting a trestle-tree,B,0n the lower mast, X, below the upper trestle-tree, A, Figures l, 2, 4, and to extend the heel of the top-mast O, putting a band, G, around the top-mast Y, to truss the lower yard, T, in, and placing a bridleband, E, around and over the mast-head for slinging the lower yard, T, to.

D is a projection on the ends of the lower `trestle-trees, B. F is an iron gate on the upper trestle-tree, A. H are hounds bolted on the mast X to support trestle-trees A and B. I is a wooden top resting on upper trestle-tree, A. J represents the lowest place of top-sail yard -V in old style, Fig. 3. K is the point where lower mast-head is cut off. L are clewlines leading to ends of yard V and down side ot' sail to the clews M or lower corners of topsail. N are spilling-'lines which go around the sail. O is the chain-slings of lower yard, T. P is a wood tid through heel O of topniast Y, to support the weight resting on lower trestles, B, and taking against the projections D on the ends ofthe same. Q is a front view of the bridle-band E. B is the chain or rope gear top-sail sheets, which hook into the topsail clews M. S is the top-sail halyard for hoisting yard V. U is an iron band around trestletrees B. Z is a parralircn to connect topsail yard V to top-mast Y for hoisting and lowering, the top-sail coming all the way down the top-mast to iron gate F on upper trestletrees, A, easing the weight and making it more safe in heavy weather.

The sail can be easily reefed or furled by hauling on the clew-lines L, which bring the y sail tight across the reef-bands. By hauling on the spilling-lines N the sail is boundv up to the top-sail yard V and made secure.

W is top-mast'cross-trees for supporting topmast rigging, Fig. 1.

What I claim as my invent-ion, and desire to secure by Letters Patent, is-

I. The placing below the upper trestle-trees, A, a new pair of trestletrees, B, on the 4lower mast, X, with the projections D on the ends,

and securing trestle-trees B with the iron band U, and extending the top-mast Y so that the heel O with iid AP, going through the heel C, will rest on trestle-tree B and take against the projections D, instead of resting on the 'trestletrees A, which now opens with the iron gate F to facilitate sending the top-mast Y up and down, substantially in manner as herein described.

2. The bridle-band E over the mast-head, as herein described.

3. The combination of the foregoing with the clew-lines and spilling-lines, for the purposes `and objects herein described.

J. M. HUDSON.

Witnesses:

A. W. CoA'rEs, TowNsEND JONES.

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