US1240859A - Ammunition-primer. - Google Patents

Description

G. F. LALLMAN.

AMMUNITION PRIMER.

APPLICATION FILED SEPT-23.1916- Patented Sept. 25,1917.

WITNESSES ATTORNEY UNITED s'ra'ras PATENT men;

GILBERT F. LALLMAN, OF ARLINGTON, NEBRASKA.

AMMUNITION-PRIMER.

To all whom it may concern:

Be it known that I, GILBERT F. LALLMAN, a citizen of the United States, residing at Arlington in the county of IVashington and State of Nebraska, have invented certain new and useful Improvements in Ammuni-' tion-Primers, of which the following is a specification.

This invention has relation to cartridges and shells, and the nature and objects thereof will be readily apparent to those skilled in the art to which it appertains in the light of the following explanation of the accom panying drawings, illustrating what I now believe to be the preferred embodiment, or mechanical expression, of my invention, from among other forms and arrangements, within the spirit thereof, or the scope of the appended claims.

However, an object of the inventiorris to provide a cartridge or a shell contain ng the projectile and a charge, and embodying means associated with the priming cap,

whereby to direct the flame from the cap upon percussion, to various separated parts of the charge so as to cause uniform ignition thereof as rapidly as possible, with the consequent generation of a large volume of gas to quickly and properly eject the pro? jectile with an increased amount of energy.

Another object of the invention is to provide a cartridge having the improvements above noted, and designed in such a manner as to permit manufacture thereof at as low cost as possible and with a minimum of parts.

In addition to the foregoing my invention comprehends improvements in the details of construction, and arrangement of the parts to be hereinafter more fully described and particularly pointed out in the appended claims.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference throughout the several views in which they appear j Figure 1, is a fragmentary longitudinal section taken through a cartridge constructed after the manner of my invention.

Fig. 2, is a face view of the battery cup forming a part of my invention,and

Fig. 3, is a transverse detail section taken on the line 3-3 of Fig. 1.

With reference to the drawings 1 indicates the wall of a cylindrical cartridge casing,

Specification of Letters Patent. Patented Sept, 25, 1917,

Application filed September 23, 1916. Serial N 0. 121,844.

closed completely by a solid portion at 9,

and having its opposite end outwardly flared to form an annular flange 10. The battery cup is formed iiiterio'rly with a cone shaped projection 11 formed integrally at its base portion with the solid portion 9 of the battery cup, said cone member having its apex directed toward the flared end and located centrally within the cylindrical portion of the battery cup.

This conical member which will hereinafter be termed the deflector is provided with a plurality of grooves 12 which extend from the apex thereof toward the juncture between said cone shaped member and the interior surface of the cylindrical portion of the battery cup. At the base portion the grooves which diverge gradually from the apex downward are each in communication with a separate opening 13 which extends through the wall 8 of the battery cup. The grooves 12 are also increased in depth toward the base portion of the cone member.

Surrounding the battery cup and filling the base portion of the cartridge is a padding indicated at 17 and formed at its front face with a conical depression whose walls 18 diverge from a point behind the openings 13 of the battery cup to the Walls of the cartridge. j

The battery cup adjacent the flanged portion 10 thereof is provided with an annular groove 14formed at the edge of the opening insaid battery cup to receive the annular projection 15 of a priming cap 16, which is seated in the open end of the battery cup. If desired, this flange 15 may be omitted and the usual form of plain battery cup used instead.

The'battery cup is seated within the cartridge casing with its flanged portion 10 seated in the depressed portion 3, in the end 1 apparent. However When the priming cap is sh .=cked to ignite by percussion. the fulnii nating charge contained therein, the flame will. obviously be directed toward the cone shaped member 8. The flame is thereby directed along the sides of the cone shaped member and particularly Within the diverging grooves thereof, the flaine finally emitting from the openings 13 in the side of the battery cup. The openings 13 corresponding in; number to the number 01". grooves are preferably disposed circumferentially around the battery cup inuuiformly spaced. relitioo,- whereby the tongues oi? flame emitting from said openings are directed against the Walls 18 01 the packing and from there deflected. downward and throughout the charge 0 POW-fl? which is disposed around the said battery clip, and in the conical depression of the pael rig. in

"this manner the pmvder is ignited several gala simultaneously thereby resulting L Y a rapid and complete combustion whereby a Volume of ted thereby la r . have illustrated and described my inwaiition with some degree of partieu lari y i realize that in practice various al- 't1ons thereover may be made, and l therefrn'e, resoi e the right and privilege oi changing the ioriu of the details of oonstruction, or otherwise altering the arrangement of the correlated arts Without departing' from the spirit of do invention or the e of the ap ed claims tlTlllg thus deserihed my im aitio claim new and desire to secure tors P ut i":

plurality of C11 1i opeu' pruning cap for said battery cop i cone shaped deflector Willlllil the cup haying a plurality of longitudinaliy exiendinji grooves for directing the flames to v'ai'zl, all of the opcnin 2. In- :1 Cir I plurality of chum 'n-iniingfj cap for said nioi'nl'ier Thin the c iattei y on It] al to the pro-- the flame from the cap toward said openings.

3. In a cartridge, a battery cup, having a plurality of circumferential openings, a priming cap for said battery cup, and a cone member Within the cup having a plurality of grooves in its surface correspond ing in number to the number of openings, for directing the flame from the cap toward said openings, thereby igniting the Charge of the cartridge uniformly.

l. In a carti-"dge, a battery cup, having a plurality of circuinlierential openings a n-iining cap for said battery cup, and a conical deflector Within the cup, having a plurality of longitudinally extending grooves in its si'iriace, each groove leading to one of the aforesaid openings whereby to direct the .l'lzime from the cap toward and, through said openings to itinilorinly ignite the charge.

in a cartridge, a'battery cup substan tially cylindrical in eoi'iforuiation, olosedlat one end and provided with an integrally formed l? Wardly extending cone shaped member extending said cone inenr gitudinally extending grooves which diverge toward the base portion of the cone member, an. opening inthe wall of the battery cup opposite the base portion of each groove, and a priming" cap fitted in said batter) out) hereby the flame ther rom. is eireoted by nicai'is of the aiioresaiaii openings to uniformly ignite the marge. V i

A ing lottery cup said e fianie from said Wttery' cup of the earth r

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