US376728A - William henry brown - Google Patents

Description

lUNITED STATES PATENT OFFICE.

WILLIAM HENRY BROVN, OF JERSEY CITY, NEW JERSEY, ASSIGXOR TO THE BROVNSSEAMLESS METAL 'COUR-KXY, OE SAME PLACE.

PROJECTILE.

SPECIFICATION formingl part of Letters Patent No. 316.728. dated J anuary 24, 1828. Applcatioh tiled June 30, 1.885. Renewed Jane 23, )$87. Serial Xo. .ln (No model.)

To all whom it may concern:

Beit known tlmtI, WILLIAM H ENRY Baowx, of Jersey City, in the State of New Jersey, have invented a new and useful Improvement in Projeetih s, of which the following is a specification.

My invention relates both' to shot projectiles and shells; and the object is to provide a shotV or shell which will he capable ol' great penotratiou, and yet.. will readily lake llnriliegrooves ol' n the same.

The invention consists in the combination,

and a conical eovrringshcll el' seamless drawn metal enveloping the body from its point roar ward, the body portion o1' the shell heilig cxtended in a direct line rearward beyond the adjacent portion of the b ndy and loft nl e at the rear end to forma gasa-inganni expansionchalnber.

'In the accompanying drawings, Figure 1 represents an axial section of a solid shot em. bodyingmy invention. section ofan explosive shell, also embodying the invention. Fig. 3 is an axial section of the envelope or covering-shell alone, and Fig. 4 is a side view of the hard-metal body.

spending parts in all the figure In both examples of my invention, A designates the hardmetalbody 4or center of the projectile, and B designates the envelope ox" covering-shell of softer metal.

The body A will consist-,'nsually, of a hardmetal cast-ing of tnngsten steel or other metal;

or lfiay, if desired, be a forged or ham-f meretl and hardened piece ofA met-al. It may .be a solid body of metal, or have an internal 4o chamber, a, for explosive, which is to be fired by a primer, b, as shown in Fig. 2. It may,

and preferably will, have mnuughsnrfaoe, as.,

in a projectile, of a conical hard metal body Fig. 2 is a similark Similar letters of reference designate correl l i covering shell ll while the latter is in a hot piece ol' ordu:u1c: -aml not injur.l

, gated.

or covering shell to the forni shown in Fig. 3 while the metal is in a hot state, aud to forni the shell of such size that itwill receive easily within it the body or center A. At this Stage of the manufacture the metal ofthe shell B will be thicker than it is designed to be when finished, and the shell will he ol' less length than when finished. The body'may be placed in the envelope 6o state, and the latter is then subject-cd to a further drawing operation to compress and contract the envelope or eoveringshell upon the body, the envelope or shell becoming firmly secured upon the body by its shrinkage as it cools and being reduced in thickness and elon- The project-ile may be afterward subjectcd, in a cold state, to a i'nrther drawing operation, in order to condense and compress the envelope or covcringshell and produce its lirmernnion with the body, and also to relieve any excess ot tension which the envelope or covering-shell may have by shrinking it on Athe body. It may be desirable to coat the ex.- terior ofthe projectile with a stauniferons alloy te prevent oxidation and to serve as a-lubrieator in the cold-drawing operations.

The envelope' or eoverngshell B is solliewhat longer than the body A, and is open at the rear, thereby forming a gas or expansion ring, B', and a powder-chamber at the rear of the projectile, and on tiring the said ring portion B' will be expanded into the. riding of the gun, seas to strongly engage therewith without danger ofiujury to the rilling.

I am aware 'that it is not new to provide a projectile with a soft-xnotal covering which will more readily take the grooves of a gan and will enable the projectile to more closely lit the bore without danger -ot w-.cdging therein, and I do not therefore claim, broadly, such a covering as of my invention. j

AI am also aware of English'latent No. 1,972 of 1883, which showsa soft-lead bullet enveloped in a shell of copper, which is closed or folded inward over lho end of the bullet. I do not seek to include such a proicetile in my invention, and my proeetile differs from such :r bulletin that luy body A is of a harder nir-.tal than the shell, and because the shell is proin .longed rearward in a direct line beyond the ing-shell, B, of seamless drawn metal enveloping the body from its point rearward, the body portion of the shell B being extended in r 5 a. direct line rearward beyond the adjacent portion of the body Auand left open at the rear end to form a gas-ring and expansionchamber, substantially as h erein described.

WM. BEN'RY BROWN.

and'ldesi reA to Witnesses:

T. B. CLATWORTHY, WgG. VosBURGH.

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