USRE3087E - Improvement in the construction of ships, boats, buoys - Google Patents

Description

@uiten tetes @anni @ffice JOHN K. MAYO, OF NEW YORK, N., Y., FOR HIMSELF, AND ANDREV CUSHING AND GEORGE B. CUSHING, OF-ST. JOHN, NEW'BRUNSWIGK, ASSIGNEES OF JOHN K. MAYO.

Letters Patent No. 51,735, dated December 26, 1865; reissue No. 3,087, dated August 18, 1869.

DIVISION C.

IMPROVEMENT IN THE GONSTRUGTION OP SHIPS, BOATS, BUOYS, AND OTHER NAUTIUAL AND MARINE STRUCTURES.

@the clittnlr nfzmh tu in time Enters @anni :mt making part of tte time.

TO ALL WHOM IT MAY CONCERN:

Be it known that JOHN' K. MAYO, formerly of Portland, Maine, but now otl tho city, county, and State of New York, inventedan Improvement in Nautical or Marine Structures and Appliances; and we hereby declare the following to be u suilicicntly full, clear, and exact description thereof to enable one skilled in the artA to which the said ufy'crition 4appertains to carry it into effect, reference being had to the accompanying drawings, which are made a part of this specification.

The invention consists in forming various nautical or marine structures and appliances of a plurality of thin sheets or plates of wood, cemented or otherwise firmly connected together, with the grain of the several scales or thicknesses crossed or diversified, so that they will afford' to each other mutual strengthysupport, and protection against checking, splitting, warping, expsn'siorn'and contraction. I i

Figure 1 isa transverse sectional view of a vessel, illustrating various npplicationsof the invention.

Figure 2 illustrates the application of the invention to masts, spurs, and the like.

Figure 3 represents a perspective view of a buoy.

The hull oi' a vesselmsy be constructed with two shells, A A',.each made up of a number of thin sheets or plates of wood, a ril-a, rmly connected together by the aid of cement, with the grain crossed or diversified in direction. i

C O represent angle-pieces nf the similar laminated wood or compound scale-board, made up in suitable forms.

The deck D is made ofa number of scales or sheets similarlyconnected together.

E represents armor-plating, whichis also-constructed of wood, laid up in thin scales lorpletes.

The advantage oflthis material* for marino structures is manifest, when it is seen that by tho use of scalaboard or thin sheetsof wood, irmlyccmented or fastened toget.her',`with the grain crossed or diversified, as described, we approach to the strength and tenacity o f metals, while retaining the lightness and buoyancy of wood, and at the same time, by means of the cement, preserved from decay.

Another great advantage is in the fact that this combined scale-hoard is not subject to shrinking or swell ing by atmospheric changes; hence the leakage of vessolsso built would be nearly or quite done away with.

In constructing a vessel of this material, sheets or planks may be prepared, and fastened upon a frame or skeleton, in sections similar to the present method of constructing iron ships, or, in some instances, it may be applied in one continuous seamless web, or, if preferred, all framing may be dispensed with, and the shell or plurality oi:` A shells may answer every p-urposeot` strength, -by placing partitions of somo material as substitutes for beams, said partitions forming water-tight compartments.

The space between outer and innershells may be used, as has been dono inV vessels ofthe monitor class, for tho admission of water, to depress the ship in action; or in mercantile ships, by well-arranged stops, the water may be used for ballast, or for trimming the ship with great facility.

This material may also be used as a shotproof cladding for war-ships, in place of iron, s small fraction'of the weight oi' iron being equal or superior proof-protection, and yet the risk of splinters, so dangerous to life in the common wooden ships, would bo entirely dono away with.

Masts and spars may be made very light and very strong,'in hollow'or cylindrical forms, and be put together 'in section, by any oi' the ordinary means usefl to connect cylinders or pipes; or, if found preferable, they may be made up continuously, in one entire length, as required.

The invention is applicable to the formation or construction of ships, both sailing and steam, for commercisl, pleasure, or war purpos'es or parts thereof, such as beams, knees, kecls, kelsons, stem and stern-posts, ruilders, frames, foot-hooks, masts, spars, bowsprits, booms, blocks, bulk-heads, planking, ceiling, sheathing,

decks, centre-boards, masthoops, travellers, pilot-stands, steering-wheels, &c., tc.;. also for boats, life-boats and row-boats, race-boats, and all varieties, lii`e-preserving seats, lifc-preservers, buoys, iloats, rafts, beacons, ligl1t houses.

Buoys for channels or headland-guides will be found very'superior made of this material, inasmuch as they are more buoyant, and, being light, are less liable `te damage by Contact than any kind of metal buoy, or to inict damage in contact with vessels. .i

'This material is particularly adapted for the cheap and eliicient construction of light-houses and beacons.

But it is unnecessary to enumerate all the articles and structures to which the invention is applicablev in marine er naval architecture; sullice it to say it may be applied in all eases where lightness, strength, or durability is requisite or desirable.

The following is what is claimed as new in the invention of JOHN K. MAYO:

The employment or use of the compound scale-board hereinbeforc described, in the formation of the speci lied or analogous nautical structures.

JOHN K. MAYO.

Witnesses EDWARD WILLARD, S. W. Fnos'r.

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