US122504A - Improvement - Google Patents

Description

C. S. WELLS.

CARTRIDGE. No. 122,504. Patented'Ja1L2y, 1872.

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UNITED S'rlrrEs YPa'rnlv'r OFFICE.

IMPRQVEMENTIN CARTRIDGES.

Specification forming part of Letters Patent No. 122,504, dated January 2,1872.

ing a part of this specification and to the letters of reference marked thereon, in which- Figure l is a longitudinal section of a cartridge-shell made according to my invention.

Fig. 2 shows the inode of attaching the cup to` the head. Fig. 3 shows the cup, wad, Iand head, as secured together when in place within the shell, but secured together by an eyelet in stead of the nipple upon the end of the cup'. Fig. 4 represents the cup with a seat or anvil for the cap spun into the nipple for a center-fire primer. Fig. 5 shows a cup with a seat or anvil spun. into the nipple and closedl together, and said cup secured to the wad and head. Fig. 6 shows a cup Without a nipple,.but secured to the `wad and head by an eyelet and an iron disk, also secured in the bottom ofthe cup by said eyelet.

1"ig. 7 shows the shell without the wad and ontside metal covering, in its iirst sta-ge of manufacture, and Fig. 8 shows the same shell coinpleted.

My invention relates to the construction of a cartridge-shell made of paper, or of paper and thin metal combined, whereby the re-enforcing cup is secured direetlyto the head of the shell, with the end of shell, or a portion thereof, close 'ly confined between said cup and head, thus securing all the separate parts of the shell iirmly together, and also forming a perfect gas check. f

VThat others skilled in the art maybe able to make and use my invention, l will proceed to describe the same and it-s operation.

ln the. drawing, A, in Fig. 7 represents the cup, having a nipple, a., thereon, which cup, wit-hits nipple, is struck or spilli up from thin metal. A disk, C, is punched out from suitable metal, with a holein its center, through which the nipple is inserted, and both being placed within theI nmchine. The outer end of the nipple is expanded similar to an eyelet,

thus securing the cup to the disk C, and at the saine time the 'central portion of the disk is forced in toward the cup, bringing the outerl end of the nipple in a littlel beyond the plane My method of constructing a shell having a cup and head of f the outside of the disk C.

this description is as follows:

' l roll up a paper cylinder in the usual manner upon a mandrel, and then wind paper around the cup A until of just the size to tit the inside of the shell, and then insert said cup and paper in'to the shell, forcing it to the bottom, as shown clearly in Fig. 7. A Wad, B, is then attached by inserting the nipple a through a hole in the center of said wad, the head C is then 'placed uponthe nipple, and the shell being then placed in a heading-die, a punch, the body of which tits thebody of the shell l), and having a shoulder at d, the end being a little smaller than the insidediameter of the cup A, is forced into the shell against the bottom ofthe cup'. v This crowds the cup A, wad B, and headC firmly together, and

secures them by expanding the outer end of the nipple a; forcesthe paper which was wound..

around the cup more closely and compactly around the cup', reducing the size of the lcup a little, and making a flange at the base ofthe cup, as seen clearly in Fig. 1. Before this last operation is performed, however, of forcing the punch into theshell, a metallic covering, e,'of suitable thin metal, is wrapped around the paper shell, and then turned under a little,- between the endof the paper shell and the head, so that when .the punch is driven in and the head secured to the cup the turned end of the metal is held securely between the paper body and the metallic head. Fig. 1 represents a cartridge made as described, inwhich e is the thin metallic covering; D, the paper body 5; A, the cuphavin g the nipple aV made thereon; d,.the paper wound around the cup; B, the wad between the' cup and the head, and C, the head, and all these parts are secured together by merely eyeleting or riveting the end of the nipple a to the head.

ln a cartridge, constructed as described, a rim fire-primer may he used, and when it is desirable to use a center-lire primer or cap, I spin an annular groove, b, intothe nipple, as shown in Fig. 4, and when the cup and head are forced together, inthe operation of eyeleting or riveting the end of .the nipple to the 2 122,504 g l l head, the said groove b is pressed together, forming an internal annular flange, as shown at b, in Fig. 5. This flange forms an anvil, which receives the force ofthe blow when the primeris struck by the firing-pin.

The thin metallic covering e to the shell may be omitted, if desirable, and also the Wad B 5 but i'n place of the wad I put the cup and its paper Wrapping into the paper shell, as shown in Fig. 7, and turn under the lower end D of the'pa- A per/shell, and when the nipple is secured to the head C the end D is turned in and secured firmly between the cup A and head C, and takes the place ofthe wad B, as shown clearly inlvFig. 8. l

, The thin metal e may be soldered to the head C, Where the two come in contact, in order to insure greater strength; and, if desirable, the turned in end Dof the shell D, shown in Fig. 7, may be dipped in a strong solution of shellac,

or other equivalent material, before the head C is attached, in order to make the entire base of the cartridge more firm and more completely Water-proof. K

.Having thus described my invention, what I claim as new, and desire to secure by Letters 1. The re-enforcing cup A, having the nipple or eyeleta, with the internal flange or seat b 'made therein, when said cup is secured to the head C, all substantially as described..

2. The combination of the case D, cup A, with its wrapping d, head C, nipple or eyelet a and internal flange D', all substantiallyas and for the purpose described. f ,Y j

CHARLES S. WELLS.

Witnesses:

T. A. CURTIS, CLARENCE BUCKLAND'. (32)

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