US695485A - Firearm. - Google Patents

Description

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(Application filed May 22, 1901.;

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WITNESS/f6.

Mm M .UNITED :STATES PATENT Genion,

' An inAM n. rAssAeE, ot` PLYMOUTH, MICHIGAN, Assianon` 'ro FRANK c.

'lROlV BRIDGE, vOF DETROIT, l\'IIClII( 1rAN.v

FIREARM.

. ASIPECIIFICAlItlON' forming part of Letters Patent No. 695,485, dated March 18, 1902. I

" application tied May 22. 1901.

l zen of the United States,residing at Plymouth,

in the county of Wayne, State of Michigan, have invented certain new and useful Improvements in Firearms; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable oth.- ers skilled-in theart to which it appertains to make and use the saine, reference being had to the accompanying drawings, and to the fig lires of r\et`erenee marked thereon,which form a part of'this specification.

This invention relates to firearms; and it consists in the construction and arrangement of parts hereinafter Iullyset forth,and pointed out particularly in the claims.

The object of the invention is to provide means for automatically extracting the shell after the cartridge vhas been exploded by the force of the recoil, whereby the breech-bolt at the breech of the barrel `is retracted sufficientlyto allow the shell to he expelled by the pressure ot' the exploded charge within the cocked. v

barrel. The above object is attained by the mechanism illustrated in the accompanying drawings, in ,which- Figure 1 is an elevation of a gun embodying my invention. Fig. 2 is an enlarged longitudinal section through the gun-barrel, the propulsive, vand the ,trigger mechanism, showingthe position of the parts when the gun is Fig. isa like View showing the .position of parts at the instant of firing, the dotted 'lines illustrating the recoil of the breech-bolt and the expulsion of the shell .from which the ball has been red. t

Referring 4tothe characters of reference, 1 designates the barrel, which is suitably at- ',tached to-the'stock -lhe rear end of the barrel containsir receiver 3, adapted to conline the propulsive vsprings l and 5,which are located therein, as wcllas the reciprocatory vbreech-bolt l, adapted to reciprocate in said receivcr'and carrying the tiring-pin 7 at its forward end. Tlhebrecch-bolt 6 is adapted ,to close the bore S of the barrel,which carries the cartridge. In the under face ot the bar rcladjacent the lbreech of the bore S is a shellchamber .fl, having an exterior opening 1t),

Serial No.' 61,469. No model.)

through which .the shell maybe entered for insertion intothe breech end of the bore S. Projecting rearwardly from the breech-bolt VG is a stem 11, whose rear end is provided Surrounding said stem 11 rying at its rear end'a projection 16, adapted' to engage the notch in the rear of the stem 1l when the breech-bolt is retracted tocompress the springs 4: and 5 and place the gun in a cocked position, at which time the rear end 17 of said stein projects into the path of the trigger 18, by the operation of which the stem is disengaged from the projection 16, allowing the springs to propel the breech-bolt forward and explode the cartridge 19, occupying the breech of the bore 8, as will be well understood.

Formed in the under face of the barrel is a slot 20, through which projects a nger-piece 21, whose inner end is attached to the breechbolt 6 and through the medium of which said bolt may be retracted to compress the springs and cock the gun.

The spring 5 is the main propulsive spring, while the spring l is an auxiliary spring of weaker tension and occupies a position between the breech-bolt and the main spring. The purpose of the lauxiliary spring is to allow the breech-bolt 6 to recoil slightly from, the barrel 8 as the cartridge is exploded, thereby removing all pressure from the end of the shell of the cartridge and allowing the reaction of the gas in the bore S incident to the explosion of the cartridge to force the4 shell outward and eject it from the barrel, as shown by dotted lines in Fig. 3, whereby the shell is automatically extracted by the operation of discharging the gun, in which operation the spring -l only yields sufficiently to allow the breech-bolt to recede from the path of the shell, but not sufficiently to re- -cock theg'nmns the tension of the spring 5 is suicient to prevent the breech-bolt receding but a'limited distance.

l In actual practice it'ilias been found that .by means of the above arrangement the shell is automatically extracted from the gun by the force of thempanding gases within the e barrelV through the receding of. the breechbolt adapted to be engaged by theftrigger, a

spring of comparatively weak tenson'engaging the rear of said breech-bolt and a spring of greater tension interposed between said first-mentioned spring and the rear end of the receiver. y v

2. In a sporting rie, the combination of a barrel havingma bore `for the cartridge; a breech-boltvcarrying a firing-pin, means for driving the 'f breech-bolt forcibly forward in the receiverjto explode the cartridge and a springfor allowing a slight yrecoil of said breech-'bolt asl the cartridge is exploded.

3. In a sporting. rifle, the combination of a barrel, a receiver, a reciprocatory breech-bolt carrying a firing-pin, a stem projecting rearwardly from said breech-bolt adapted to be engaged by the trigger, a spring of strong bolt and a spring of less tension mounted upon said stem and interposed between the end of the breech-bolt and the end of said first-mentioned spring, and means for holding said springs so as to apply tension thereto as the breech-bolt isretracted.

In testimony whereof I sign this specification in the presence of two Witnesses. t

' IEIIRAMv II. PASSAGE.

Witnesses:

S. WHEELER, C. JOSLIN.

. tension surrounding the stem of said breech-

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