US602875A

US602875A - Cartridge-shell

Info

Publication number: US602875A
Authority: US
Publication date: 1898-04-26
Anticipated expiration: 1915-04-26

Description

(No Model.)

J. K. ROSS. CARTRIDGE SHELL.

No. 602,875. Patented Apr. 26, 1898.

Att 03:

UNITED STATES PATENT OFFICE.

JAMES K. ROSS, OF SPRINGFIELD, OIIIO.

CARTRIDGE-SHELL.

SPECIFICATION forming part of Letters Patent No. 602,875, dated April 26, 1898. Application filed October 18, 1895. Serial No. 566,045. (No model.)

To all whom it may concern:

Be it known that I, JAMEs K. Ross, a citizen of the United States, and a resident of the city of Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Cartridge-Shells, of which the following is a specification.

My invention and the various advantages resulting from its use will be apparent from the following description and claim.

The object of my invention is to provide constructions whereby the explosive material used and confined in a breech-loading shell or cartridge may be more powerful than heretofore, bulk for bulk of explosive material, may be sure fire, may consume less powder and give a greater penetration with less recoil, and more completely ignite and consume the powder and the gases evolved from the burning powder thus confined.

The explosive material may be of any kind of powder, including, of course, various descriptions of dynamite, and my invention is of great benefit in the explosive use thereof.

My invention is of great advantage in the explosion of powders known as wood powders.

In the accompanying drawings, making a part of this application, andin which similar letters of reference indicate corresponding parts, Figure 1 is a perspective view of a reinforced paper cartridge-shell for a shotgun. Fig. 2 is a transverse section of the shell shown in Fig. 1, the section being taken at the dotted line 3 3 of Fig. 1. Fig. 3 is a perspective view of a metallic cartridge-shell for a shotgun. Fig. 4 is a transverse section of the shell shown in Fig. 3, this section being taken in the plane of the dotted line 5 5 of Fig. 3. Fig. 5 is a perspective view of a rifle cartridge-shell. Fig. 6 is a transverse section of the shell shown in Fig. 5 and taken in the plane of the dotted line 7 7 of Fig. 5. Fig. 7 is a view in perspective of a shell having my invention applied to the rear end thereof. Fig. 8 is a longitudinal section taken through the axis of the shell and through the vent or perforation.

Figs. 1 to 5, inclusive, illustrate the application of that feature of my invention which is applicable to the cartridge-shell and as applied to the various descriptions of shells.

In the shell D, I form a groove or depression D and in this groove I perforate the side of the shell, thereby making a passage D leading from the exterior of the shell to the interior thereof. There may be one or more of said passages in the said groove D The groove or depression preferably extends around the shell; but it may be more limited in its extent, or the groove may occur intermittently in separated divisions around the shell, in which event each depression has a passage D.

In order that the passage D be of any real advantage, the depression should be quite extended, so as to contain considerable air. Obviously the better direction in which to place the extension is circumferentially on and in the side of the shell. Where the passage -way D occurs in a reinforced paper shell, it (the passage) will pass through both the metal and the paper forming the side of the shell.

The depressions D and perforations D in the rifle-shell of Figs. 5 and 6 will be substantially the same in principle as those described in connection with the shotgun-shells, but will preferably be on a smaller scale. The construction of the depressions and perforations in rifle-shells and pistol-shells will not materially differ from one another.

In order to more fully utilize my invention, the firearm employed should be provided with a communication extending from the exterior of the firearm to the cartridge-via, so as to place the passage D through the shell in communication with the air exterior to the firearm. This communication is preferably one of a very minute diameter. The shell is placed in the firearm in the ordinary manner and when occasion arises is discharged. In this discharge the explosive material has opportunity to avail itself not only of the airin the passage D and in the depression D but also of the outer air through the communication in the firearm. This air is drawn into the shell and is utilized to increase the combustion and also to more thoroughly consume the powder and its constituent and resilient gases before the latter leave the gun. This immediate thorough consumption increases the force of the charge and the speed at which the charge is delivered from the muzzle of the gun and the penetration of the projectile or projectiles. Thus I am enabled to diminish the charge of powder to perform a given amount of Work by the gun. As before mentioned, the use of my invention also diminishes the recoil of the gun. Economy in the amount of explosive material used and increased efficiency of the gun are effected.

My invention is also usefully applicable to ordnance as Well as to shotguns and to ordinary rifles, and I desire my claim to be understood in connection therewith and as coverin g the application of my invention thereto.

JAMES K. ROSS.

Attest:

O. J. MODIARMID', K. SMITH.