US189069A

US189069A - Improvement in cartridges

Info

Publication number: US189069A
Authority: US
Publication date: 1877-04-03
Anticipated expiration: 1894-04-03

Description

A. B. SMITUH. CARTRIDGE.

Patented Apm 3, 18 77.

Witnesses 172M972? UNITED STATES PATENT GEEIoE.

ALBERT B. sm'rn, 0F GENEVA, NEW YORK.

IMPROVEMENT m CARTRIDGE'S.

' Specification forming part of Letters Patent No. I 89,069. dated April 3, 1877; application filed February 6, 1877.

by which means the body of the shell only is thrown away, and the base or cap is retained for further use, the greatest safety, simplicity,

and cheapness in making, loading, and handling the ammunition being thereby attained.

The special object of my invention is to so securely and accurately unite the paper shell and the metal base or head Bl in the axis of which the percussion-cap is located, as to insure their being readily and properly inserted in the fire-arm when united, with a certainty of being discharged.

The construction is as follows, referring to the accompanying drawing, in which Figure 1 is a side view of a shell. Fig. 2 is a vertical section in the plane of the axis of the cy-' lindrical shell. Fig. 3 is a perspective view of the base or cap. Fig. 4 is a shell re -enforced with metal at the base; Fig. 5, a modi fication.

The same letters of reference are used in all the figures.

A represents a hollow cylinder or shell of paper or any suitable cheap material suited to the purpose, in the baseofgwhich a disk of wood or other sufiicient material, a, forms a head, in the center of which there is a conical hole, a. A piece of wire, b, runs radially through the shell, projecting slightly on both sides beyond the surface. The base of the conical hole in the disk a is closed by a thin paper impervious to dampness.

I The base or cap B, of brass or other metal, is a short cylinder, closed at the rear end by the head 0, that projects beyond the sides, as

seen in the figures. The sides are thin, forming a cup, into which the shell A accurately fits, the edges'of the-cap being cut to form a bayonet-fastening on each side to receive the projecting ends of wire b, by which the two parts are securely united and easily separated at will. A small projection, (1, stands up from the inner face of head 0 at the center, which,

when the parts A B are united, breaks through the paper and opens directly into the charge in the shell A. A hole is made down through the center of this projection d, and an annu:

lar recess is made around it on theoutside at e, to form a nipple for a percussion-cap of usual form. I 7

When it is deemed necessary, the base of the paper shell that enters cap B may be reenforced with a metal ring, (shown at Fig. 4,) and Fig. 5 shows the bayonet-fastening pins b projecting inward from the base B, and the slot cut in the paper shell A.

I am aware that paper diaphragms have heretofore been applied to the inside of they shell to prevent the escape of powder; but I find such application objectionable, for the reason that when a weak cap is used the lire sometimes fails to penetrate said diaphragm. In my construction this objection is obviated by rupturing the diaphragm in the act of connecting the head and shell, thus leaving an open passage for the fire from the fulminate.

Having thus described my improvements, I claim 1. A metallic cup-shaped head, B, for cartridges formed with a conical projection, 01, on

its interior face, in combination with shell A, formed with a conical opening in its base, the head and shell constructed to be secured together by bayonet-fastening, as'shown and described.

2. The paper diaphragm covering the base of the cartridge when applied on the-outside of the shell, so as to be ruptured. in the act of connecting the base ,to the shell, as set forth.

" ALBERT B. SMITH.

Witnesses: r

ARTHUR B. BUR-T18, E. SEYMOUR YOUNG.