US255386A - Martin hdbbe - Google Patents

Description

(No Model.) l

, M. HUBBE 8v M. A. HARDY.

SUBMARINE TORPEDO.

No. 255,386. Patented Mar. 21,1882.

N. PETERS. Pmwumugmpmr, wnnmgmn, n, c.

UNTTED STATES MARTIN HUBBE, OF BAYONNE, N. J., AND

PATENT OFFICE.

MARoUs A. HARDY, or NEwPoRr,

R. I., ASSIGNORS TO FREDERIC H. SNYDER, OF JERSEY CITY, N. J.

SUB-MARINE TORPEDO.

SPECIFICATION forming part of Letters Patent No. 255,386, dated March 21, 1882. Application atea July 21, wel. No model.)

To all whom it 'may concern:

Be it known that we, MARTIN HURRE, of Bayonne, in the county of Hudson and State of New Jersey, and MARCUS A. HARDY, of Newport, in the county of Newport and State of Rhode Island, have invented eertaill new and useful Improvements in Submarine Torpedoes, of which the t'ollowing is a specifica tlon.

Our invention principally relates to selfpro peiling torpedoes in which the motive power 1s furnished by compressing air or gas ill a rescrvoir in said torpedo.

One feature ot' our invention is applicable only to torpedoes in which the engine is contained in a compartment which is filled with water and ill comlnunication with the surrounding element; and it consists in the combination, in a torpedo, of a water-compartment for zo all engine having holes for the entrance of water, a screw-shaft extending therefrom, and a tube leading aft from said compartment to the exterior of the hull and loosely surroulldng the screw-shaft, whereby the necessity ot' any stuffing-box for the said shaft is obviated and power which has been heretofore consumed by friction is saved.

Other features of our invention consist in certain novel details in the construction of the 3o flask or reservoir in which air or gas is to be compressed to serve as a motive power, and in the manner of securing the said tiask or reservoir in the torpedo so that it forms a portion of the hull thereof.

In the accompanying drawings we have divided the hull, showing only one -half the length in each figure, on account of its great length and comparatively small diameter.

Figures l and 3 together represent a central 4o longitudinal section of the whole. torpedo, and Figs. 2 alld et represent a plan thereof, with a tiask or reservoir for gas or air, of slightlymodified construction, no part of ollr present invention.

Similar letters of reference designate corresponding parts in all the gures.

The hull of the torpedo is composed entirely, or nearly entirely, ot' sheet metal, and com prises a spindle or cigar shaped bow-section, 5o A, a cylindric middle section, B, and a conical stern or after section, G. The bow or forwhich, however, forms ward section, A, comprises a magazine for the explosive charge, forllled by bulk-heads ct a', and possesses in itself no novel features. The cyliudric nliddle section, B, comprises a flask or reservoir, B', and may be divided into as many separate compartments as may be desirable. As here represented, it is divided back of the flask or reservoir B' by bulk-heads b b b b'", to form four compartments, in one of 6o which, D, may be contained the propellingengine, another, E, of which may be used as acoil-chalnber, from wllich an electric cable is paid out as the torpedo moves forward, and the other two of which nlay serve for any other useful purpose.

F designates a screw-shaft, which is provided at its inner end with a spur-gear, c, through which motion may be imparted to it, and G designates an ordinary screw-propeller mount- 7o ed upon said shaft. The shalt F is mounted ill a suitable inboard bearing, d, in the engine compartnlentD,and a stem-bearing supported by a hanger, e, which is shown as secured to and depending t'roln a bulk-healhf, near the 75 end of the conical stern or after section C. The said shaft extends rearward from the engine-compartment through the conical section C and out upon the under side thereof'.

From Fig. 1 it will be clearly seen that the 8o conical stern or after section C, is connected to the middle section, B, so that the upper sides ot the two sections are in line, or nearly in line, and that the under side of the after or' stern section C tapers quickly rearwardly and upwardly from its union with said middle section. This inode of construction is very advantageous, because the buoyancy of the hull at the top is muchincreased,because the screw G maybe arranged beneath and under cover 9o of the hull, and because said screw projects so much below the bottom of the hull that it may work in solid water, thus greatly increasing the speed of the torpedo and effecting a saving of power, which in a boat of this kind is of the utmost importance. L,

Between the under side ofthe conical steril or after section G and the screw-shaft F is arranged a triangular skag or keel, H, and back of this is arranged the rudder I, which is there- Ico by greatly protected from inj nry.

The sides of the compartment D which contains the engine are perforated; or the said compartment is otherwise constructed so as to aord communication with the surrounding element and perinit a. free circulation of Water through the compartment, thus cooling all parts of the engine and effectually preventing the heating of all the movable parts. From the said engi11e-compartment D rearwardly to the exterior of the hull extends a tube, J, open at its inner and outer ends and of sufficient sizeA to allow the screw-shaft F to pass through it,

thus forming a Water-tight passage for the shaft through the conical after section G. Inasniuch as the said compartment D is always full of water, n stufng-boxes are needed at the ends of said tubes, and the power ordinarilyconsu in ed by the friction of the screw-shaft in its stuffing box is saved, whilewater can pass through the tube around the shaft.

ln order to prevent any lines, cables, Weeds, or grass from being wound around the shaft F and fouling it, we mayinclose the shaftwithin a stationary tube extending from the end ofthe tube J to the stern-bearing e.

From the compartment E a tube, g, extends rearwardly, preferably through the propellershaft, which is hollow for its reception, and through this tube the cable from the coil-chamber is paid out, and the entanglement or fouling of said cable iu the screw or by the rudder is prevented.

We will now describe the construction ot' the` tiask or reservoir B for air or gas. It is co1n posed of a cylindric bodv portion, l', and separate heads ly l, preferably convex or hemispherical, secured therein, as shown in Fig. 3.v \Vhere the iiask or reservoir is composed of the s traigh t cylindric body 7L and the separate heads ll the heads may be secured in the body in any suitable manner. Two methods of making this connection or joint are shown in Fig. 3, one,` end of the eylindric body h being internallyscrew-threaded and the head being externally screw-threaded to engage therewith, while the other end of said body is made slightly daring or taper internally, and the head is made with a corresponding external taper fitting in said internal taper, and secured therein by brazing or soldering.

In order to provide for securingthe ask or reservoir B' to the portions of' the hull upon each side thereof, we insert in the ends of the l portions of the hull to which the dask or reservoir is to be connected rings m, which are internally screw-threaded, and we construct the heads l of the flask or reservoir B with external screw-threads to engage with said internal screw-threads. This method ot connectingthe flask or reservoir with the sections of' the hull upon each side thereof is very desirable, inasmuch as it provides for removing the dask or reservoirand replacingit with another, if necessary.

What We claim as our invention, and desire to secure by Letters Patent, is-

l. The combination, in a movable torpedo, of a water-compartment for an engine, having openings for the admission ot' water toit, a screw-shaft extending therefrom, and a tube leading aft from said compartment to the exterior ofthe hull and loosely surrounding' said screw-shaft, substantially as specified.

2. The combination of the middle section, B, comprising a water-compartment, D, for an engine, the conical after or stern section O, arranged with its upper side in line with the upper side of the section B, the screw-shaft F, and the tube J, affording provision for the circulation of Water from said compartment D aroundl the screw-shaft, substantially as specied. L

3. The combination,in the hull of a movable torpedo, of two cylindric or annular sections and an interposed flask or reservoir having heads made separate from its body and inserted into its body, the said heads being also inserted into the sections between which the flask or reservoir is placed, and secured therein at the circumference, substantially as specified.

4. The combination,in the hull of a torpedo, of two cylindric or annular sections, AB, each having in its end an internally screw-threaded ring, m, and the interposed iiaslr or reservoir composed of the body hand separate heads l l, provided with external screw-threads for engaging with vthe internally screw-threaded rings in, substantially as specified.

MARTIN HUBBE. MARCUS A. HARDY.

Witnesses:

T.'J. KEANE, DARIUs BAKER, J oHN G. Cos'rELLo.

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