US293257A

US293257A - Wilhelm loeenz

Info

Publication number: US293257A
Authority: US
Publication date: 1884-02-12
Anticipated expiration: 1901-02-12

Description

(No Model.)

v W. LORENZ.

CARTRIDGB CASE.

No. 293,267. Patented Feb. 12. 1884.

N. PETERS. Photolhcgmphum Wa-hi mmmmmm c.

vrrnn 8rarns Parnnr irrce \VILHELM LORENZ, OF GARLSRUHE, BADEN, GERMANY.

-CARTRIDGE-CASE.

SPECFICATION forming part of Letters Patent No. 293,257, dated February 12, 1884.

Application filed May 21, 1883. (No model.) Patente-d in Germany March 19, 1882, No.

27, 1882, l\o. 149,236; in Belgium July 1, 1882, No, 58,359; in England July 3, 1582,

i"0 all whom, it may concern:

Be it known that I, WILHELM Lonnnz, of the city of Carlsruhe, in the Grand Duehy of Baden, in the Empire of Germany, have invented certain new and useful Improvements in Cartridge-Cases, of which the following is a specification.

I have devised a cartridge-case in two thicknesses, the outcrmost being separable from the innermost and allowed to remain in the car tridge-chamber of the gun, the inner case being withdrawn after the firing. One such double-case cartridge may serve for a long period, the outer shell or portion thereof re maining in the gun, and allowng the use of a great number of metalcase eartridges to be used, being introduced in succession within the shell or outer portion of the first cartridge as it remains fast in the gun. When it is desirecl to use ordinary pasteboard cartridges again,the outer shell of the first cartridge may be removed by the fingers or by any suitable instrument.

For sporting firearms of all descriptions, in particular for Lancaster and Lefaucheux guns, paper or pasteboard cartridge-casos haveheretoiore been mostly used, for the reason that while the outer diameter of metal cartridgecases were made to correspond with the car tridge-chamber of the gun and with the outer diameter of the pastelooard cases, the inner diameter of the metal case was too large, on account of the less thickness of the metal cases. Thus the metal cases contained a greater quantity of powder and shot, and required larger closing-plugs at the front of the cases than the pasteboard cases, and the movement of such large plugs or wads into the smallr bore of the gun had a detrimental eifect on the be havior of the gun, It is not expedient to use metal cases of the same thickness as the card board cases. These incouveniences are efiectually avoided by the present improved metal cartridgecase provided with an outer remov able metal jacket. The outer da1neter ofthis jacket corresponds accurately with the outer diameter of the corresponding pasteboard cartridge-oase and with the eartrdge seat or chamber of the gun, while at the same time 19,677, and August 24, 1882; in France May X0. 3,137, and in Austria-Ilungary October the inner diameter of the metal case also corresponds with the inner diameter of the paste board case, thus insuring an equal charge of powder and an equal-sized plug and the ordi nary successful action on firing.

The accompanying drawings form a part of this specification, and represent what I consider the best means of carrying out the invention.

- Figure 1 is a side elevation, showing the improved cartridge with the inner shell and its contents partially drawn out from the outer shell. Fig. 2 is a corresponding front view. Fg. 3 is a longitudinal section, showing the cartridgecase in complete condition for use. Fig. 4 is half of a corresponding front view. Fig. 5 is a complete front view. Fig. 6 is a side view of the outer shell dctached. Fig. 7 is an end view of the same. Figs. 8 and 9 show a modification. In the previous views the outer shell as well as the inner is repre sented as drawn from a continuous tube. These Figs. 8 and 9 show the outer shell 'formed from a previously-rolled piece of sheet metal, the meta-l having been earefully rolled to the proper uniform thickness, cut by dies or otherwise, and bent around by hand or by machinery, and forming a complete cylinder, except that it is open for a narrow space extending the whole length. Fig. 8 is a side view, and Fig. 9 an end view.

Similar letters of reference indicate corresponding parts in all the figures.

A is the inner shell, formed in all respects like an ordinary metal shell, but with a less external diameter than is required to fill the cartridge-chamber of the gun.

B is the outer jacket, having an external diameter just suflicient to tightly match the cartrdge-chamber of the gun, and having an internal diameter adapted to receive the inner shell and to support it.

In loading the Cartridge, the inner shell is held in any Ordinary or suitable manner to receive the proper quantity of powder and shot, the covering plug or wad (not represented) being applied and lightly secured in the ordinary manner. Then the outer shell, B, is applied.

In use, the entire cartrdge-case, including both the inner shell, A, and the outer shell, B, are inserted in the c'artridge-chamber of the gun, strongly locked in any ordinary or suitable manner, and either immediately or at anyperiod thereafter, when desired, the gun is fired in any ordinary or suitable manner.

I have indicated a percussioncap adapted to be fired by a smart blow from a firing-pin operated by the lock: of the gun, as will be underst'ood. The straining due to the violent expansion of the powder is effectually resisted by the thin inner shell, A, by reason of its being supported by the exterior surface of the outer shell or metal jacket, B. This outer shell orcasing, B, is also expanded against the walls of the cartridge-chamber, and -is thus held.in its desired position. without the employment of an end flange, which I find interieres With the proper seating of the cartridge and prevents a tight joint. The first Cartridge, having the outer shell, B, being properly positoned andexploded, the shell B is retained in the cartridge-chamber.

My improved cartridge-case can be used in guns adapted forpasteboard cases. In using these improved metal cases the outer Jacket,

B, remains in the chamber or cartridge-seat of. the gun after firing and withdrawing the case, so that only the first cartridge used requires to have the Jacket. If it be subsequently desired to shoot with pasteboard carl tridges again, allthat is necessaryto prepare the gun isto simply draw out theouter shell, B, instead of allowing it to remain there longer. This arrangen1ent is applcable for all calibers of Lancaster, Lefaucheux, and analogous Sporting-guns.

I am aware of Patent No. 163,154, of 1875, in which the inner shell and head are made separate, and in which the outer shell has a flange which does not enter the Cartridgechamber of the gun, and such construction is not sought to be covered in this application.

Having thus described the nature of my invention and in what manner the same is to be performed, I claim' The compound cartridgecase described, having an inner shell, A, with its closed rear and flange, as usual, but with a body of less thickness than is required to fill the cartridge chamber of the gun, in combination with an external removable shell, B, in the form of a plain cylinder, adapted for joint operation relatively to each other and to a breech-load ing gun, substantially as herein specified.

In testimony whereof I have herento set my hand, at Berlin, this 13th day of March, 1883, in the presence' of two subscribing witnesses.

VILHELM LORENZ. \Vitnesses:

CARL GRONERT, B. R01.