US429811A - Nes krag - Google Patents

Description

kNo Model.)

. "5 sheets-sheen 1. 0. H. J. KRAG & E. JORGENSBN. BRBBGH LOADING GUN.

Patented June 10, 1890.

' (No Model.) @sheets-sheen 2.

0. H. J. KRAG & EJJRG'ENSBN. BREEGH LOADING GUN. 110.429,811. Patented'June 10,'1890.

mm1., n. .www

(No Model.) 5 sheets-sheer, 3. l O. H. J. KRAG 8v E. JGRGBNSEN.

BREEGH LOADING GUN.

Patented June 10, 1890.

(No Model.) 5 Sheets-Sheet .4.

0. H. J. KRAG 8v E. JRGENSEN. BRBBGH LOADING GUN.

110.429.811. Patented June 10, 1890.

5 Sheets-Sheet 5.

o. H. J. KRAG sv E. JGRGBNSBN. BRBBGH LOADING GUN.

No. 429,811. Patented June- 10, 1890.

(No Model.)

UNITED STATES PATENT OFFICE.

OLE HERMAN JOHANNES KRAG AND ERIK J RGENSEN, OF K'O'NGSBERGL NOR\VAY.

BREECH-LODING GUN.

SPECIFICATION forming partof Letters Patent No. 429,811, dated June 10, 1890.

i Application filed November 9.1889. Seriallio. 329,797. .(No model.)

To a/ZZ whom it may concern.-

Be it known that we, OLE HERMAN J oHAN- NES KRAG and ERIK JRGENsEN, subjects of the King of Norway, residing at Kongsberg, Kingdom of Norway, have invented certain new'and useful Improvements in Magazine Fire-Arms; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or igures of reference marked thereon, which form a part of this specification.

Referring t0 the drawings, Figure l is an isometric view of a portion of a gun embodying my invention, the' magazine-gate being shown fully open and thebreech-bolt drawn back. Fig. 2 is a like view, thebreech-bolt being removed and the magazine-gate closed. Fig. 3 isa longitudinal axial section of the gun, the breech mechanism being shown in thefull-cock position. Fig. 4 is a like View of the breech end of the gun without the breech-bolt and stock. Fig. 5 is a longitudinal axial section of the breech-bolt, showing the firing-pin at full-cock. Fig. Gis a rear end elevation of the breech-bolt. Fig. 7 is a cross-section of the receiver and magazine,

taken on or about on line .fe-of Fig. l. Fig. S -is an isometric view, and Fig. 9 a left-hand' 'sideelevatiom of the breech-bolt and firing- Fig. 10 is a top plan View, Fig. `ll a. bot-templari view, Fig. 12 a left-hand side` elevation, and Fig. 13 a rear elevation,of the pin.

receiver of the gun, a portion of the left-hand wallbeing broken away in Fig. lO to better show the shellejector lever. Fig. 14 is an isometric view of the parts that constitute the firing pin or bolt. Fig. 1 5 is an isometric view of the cartridge-m agazine detached from the gun. Fig. 16 is a horizontal section thereof, the gate being shown as partly open. Fig. 17 isv an inner face view of the magazinegate. Figs. 18 and 19 are detail views of the ejector-lever and the stop-lever for the magazine, respectively.

The invention relates to repeating breechloadi fr guns, and has for its object certain improv ments whereby the breech mechan- -ism is simplified in its construction vand the efficiency of the gun materially enhanced.

The invention consists, essentially, in certain novel features of construction, arrangement, and co-operation of parts of the breech mechanism; also,in the combination, with the receiver, of amagazine and means for feeding the cartridges therefrom to the receiver, sub-` stantially as hereinafter described, and asset forth in the claims.

In order that our. invention may be fully understood, We will describe the several parts thereof separately and then their co-operation. A l

Those parts common to all fire-arms of this class comprise the stock S, the barrel B', the

trigger-guard T', the vtrigger' T, and Sear S2,

introduction of the cartridges-when used as a single loader, and to throw the shells 'out laterally, so as notto interfere with the marksman. A portion of the under side of the receiver is flat, as shown at fr, Fig. 11, and-fin said under side are formed screw-threaded sockets r for the screws s, Fig. 4, by means of which the magazine is secured in position, and with a like socket rrzfor the screw s', Fig. 3, by means of which the forward tang of the trigger-guard is secured. At its rear end the receiver has a tang R', andl is secured to the gunstock S at that point by means of a screw s2, that also serves to secure the rear tang of the trigger-guard T.

R2 is the rear stop-lug, usual in this class of guns, and serves to limit the rearward motion of the breech-bolt and guide thesame in its movements. The'front and rear faces of the lugs are planes inclining rearwardly from the base of the lug to the upper edge thereof, said faces forming a part of a helical screw-thread.

In the left-hand side of thel receiver is formed an opening or longitudinal slot l of less widthnat the rear than at the frontend,

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. provided with a longitudinal bearing', in which.

and in a recess formed partly in the lower wall of said slot and partly in the rear end of the receiver is pivoted a gravity shell-ejector E. The upwardly-turned forward end e of the ejector lies normally flush with the inner face of the receiver, and at i'ts rear end said ejector has a heel or projection e', that projects normally into the receiver. l The forward end of the slot 1 in the receiver merges into a tapering recess 2, and decreases gradually in .depth outwardly or vforwardly toward the breech-chamber C to guide the bullet end of the cartridge into the said chamber, Figs. 1, 2; and 4.

At its rear end the lreceiver is recessed and lis seated a stop-lever L, that has a 'thumbpiece Z, Figs. 2, 4, 10, 11, 'and 19, said lever being split, as shown in Fig. 19, and is held in its bearin g by the pressure exerted by the spring-arms l l2. The longer arm l projects into slot 1 and lies normally in av recess 3, Figs. 11 and 12, formed in the face of the upperwall of slot 1. When the lever is turned into the position shown in dotted lines in Fig. 4, the arm Z will move into the'slot 1 and present its dat face thereto.

At the bottom of the receiver at its front end is formed a recess 4 for the locking lug or shoulder ba on'the breech-bolt, and at the front end of the left-hand wall of said receiver is formed a ledge or projection 5, Figs. 1, 2, and 4, that forms an abutment for a shoulder e at the, forward end of the shell-extractor.

In t-he breech-chamber C is formed a recess 8, the upper wall 9 of which inclines forwardly for the reception of the extractorhook.

The breech-boZt.-The breech-bolt B, Figs. 1, 3, 5, 8, and 9, is a tube Whose -front end is closed, and in said closed end is formed an inwardly-flaring axial passage 6 for the firing pin or nipple. At the said forward end the bolt has the locking lug or shoulder b3, that takes into the recess 4, above referred to, when the bolt is turned into a position for firing The bolt B is also provided with a longitudinal rib b4, that serves to limit its rotary movement in either direction within the receiver, and at -its rear end the bolt has the usual handle b5. At said rear end is formed a slot or recess b, one of the walls of whichnamely, that on-the right hand formed by the handle-is straight, while the left-hand wall bT is curved laterally, Figs. 1 and 8.

From the handle b5 a locking-shoulder bg extends about one-third around the bolt, said shoulder tapering rearwardly and having formed therein near the left-hand edge a longitudinal locking notch or recess b, Fig. The shelZ-extfractor.-The' sh ell-extractor F. is connected by a h inge or pivot-joint 021 with the forwardly-proj ecting arm or lu g c of a car'- rier C', which consists'of a tubular section c c2. The rear port-ion c of tubular carrier C is slotted longitudinally, and is'of greater dii: ameter than the breech-bolt, while the front portion c2 is of less diameter and is fitted tightly within the rear end of said bolt.

The shell-extractorE has a hook e, the

upper face of which is inclined to fit the re v 4 provided wherein it' is securely held against vertical displacement.

The frz'ng-pn.-The firing-pin, Figs. 3, 5,

-and14, has at its enlarged rear or handle end the full-,cock notch f; or said pin maybe provided with both a full and a half-cock notch ff respectively, as shown in Fig. 5.

The firing pin or bolt in all bolt-guns with which we are acquainted is made of a single piece, and it frequently happens that the striking-point is broken olf in use or by accident, thus requiring-a new pin or bolt to be applied. To avoid this, we make the said pin or boit of two parts, detachably connected, of which part F is the striking point or nipple and part F -the bolt or pin proper. The strik ing point or nipple F has a tubular portion f2, about onehalf of which is cut away longigitudinally, leaving a collar or sleeve f 3, against which abutsone end of the spring S, that impels the firing-pin within the 'breechbolt B, the other end of said spring abutting against the end of 4the tubular portion o2 of the y extractor-carrier C', Figs. 3 and 5. At the forward end of the tubular portion of the nipple is formeda socket-bearing f4 for the head f 5, formed on the attenuated extension f6 of the firing-pin, whereby both parts are detachably connected. Should the striking point or nippleF break, the part F can be readily removed from the part F and another substituted.

The operation of the gun is as follows: Supposing the breech mechanisxnIto bein the position show-n in Figs. 3 and 5, with the exshell, the handle bsof the breech-bolt lyingin the recess 10, Figs. 1 and- 2, behindlug R2, and

the lug b3 in recess 4, thus locking the breechbolt securely 'in position, as the firingpin F F is released by pulling on the trigger T and moves ,forward under the stress of its spring S the arm F?, in which is formed the full-cock notch lyingin the slot in the tubular portionA cof the extractor-carrier C', enters the recess b along the straight face thereof, the striking point or nipple exploding the charge. If, the breech-bolt B is now turned with its handle b5 in va vertical position, or approximatelyso, the inclined face or wall b7 of theA rccessb'in the bolt B will op-v erate on the `forward end of the arm F" and move the firing-pin F back against the stress of its vspring S', while therecess bf is moved IOO I5 tractor-hook 621 over the rim of the cartridge- 429,811 j lt,

out of "register with the said arm F2, so thatr the breech-chamber C and facilitate the rearward motion of the breech'- bolt. As the breech-bolt is turned, as described, the lug b2, as well as the handle b5, will move out of their locking-notches, so as to completely unlock the breech-bolt, as will be readily understood. The breech-bolt may now be pulled back, when the empty shell held by the extractor-hook will encounter'the projecting upturned end e of the shell-ejector E, by which it is thrown out of the receiver. As hereinbefore stated, the heel e of the shell-ejector projects normally into the receiver, so that as the breechbolt B moves in and outof the receiver it (the bolt) will bear upon the heele of the ejector, thereby lifting the forward end e thereof, so that said end 'e will projeetinto said receiver. Inasmuch as the to-and-fro movements of the bolt B, which fits snugly int-o the receiver, would Abe impeded by the projectingend e of the ejector E, said bolt is vprovided with a .right-angled groove B2, Fig. 9, the longitudinal branch b of which merges at its rear end into aperipheral branch Z1', that extends partly around the said breech-bolt. The forward end b2 of the longitudinal branch l) of -groove B2 decreases gradually in depth, so as to allow the end e' of the ejector to freely slide into and out of it. When the breech-bolt B is in the position just described, and as shown in Fig. 1`, the heel e of the ejector E lies in the shallow outer end b of the branch b of groove B2, the rear end of the ejector being thus depressed, while its forward end e is lifted and projects into the receiver. A fresh cartridge may now be inserted into the receiver and the breech-bolt moved*forward, the;eartridge being carried along by the bolt and pushed into the breeehchamber C, the upper inclined face of the extractor-hook e21 bearing against the corresponding face 9 of the recess 8 in the breechchamber wall. XVhen the longitudinal rib b4 of the breech-bolt has cleared the lug R2 and said bolt is turned to the right by means of the handle b5, the bolt will be forced home by the outer face of the lug R2 opera-ting on the rib b4, said outer face being also curved rearwardly, so as to form an inclined surface,

as hereinbefore stated, thereby forcing the extractor-hook @21 into engagement with the rim of the cartridge. The returning of the breech-bolt into a tiring position also brings the recess b in line with the arm F2, in which is formed the full-cock notch f, and if the trigger were held back the charge would be exploded; but as the breech-bolt B is moved into theposition of firing the scar S2 engages the full-cock notch f and holds the ring-pin against forward motion until released by pulling the trigger. As'the breech-bolt B is moved forward the heel of the ejector enters the branch b of the groove B2, thus allowing the forward end e of the ejector to drop down flush with the inner face of the receiver. On the other hand, whenl the bolt B has been fully pushed into the .receiver and is turned to a position at right angles to that shown in Fig. 1, the heel e of the ejector will lie in the peripheral branch b of the groove B2. The shell-extractor Ef is a spring-arm, the stress of which is exerted downwardly, so that the hold of the extractor-hook 621 on the cartridge-shell is not released until this is done forcibly by the ejector E. This downward stress of the shell-extractor E may be increased by an auxiliary spring-arm 12, Fig. 5, the front end of which bears against the inclined underside of theledge or projection 5 when the parts are in their respective positions for firing.

The object of pivoting the shell-extractor to the carrier C is to facilitate the removal of the breech-bolt from the receiver, which could not be done otherwise, for the reason that the bolt cannot be turned to bring its locking-lug b2 on a line with the slot at the rear end of the receiver. By pivoting the extractor tothe carrier it can be lifted above the lug R2 and turned to one side, when the bolt may be turned sufficiently to bring its locking-lug b2 on a line with the slot formed by lug R2 and the opposite wall of the .receiver and then withdrawn from the latter.

In Figs. 5 and 6 we have shown a modified arrangement of the shell-ejector. The locking-lug b3 is chambered. In the chamber thereof is seated an ejector-pin P, so as to move freely therein. On the lug R2 ,of the receiver R is a stud or projection 14, Fig. 7, that yim- `pinges on the head1) of pin P when the breechbolt B is moved to the limit of its backward motion, causing the forward end of the pin to strike the cartridge-shell and ej eet it from the receiver. e

XVe have described the gun as a single loader, and it maybe so used, the cartridges in the magazine M being prevented from entering t-he receiver bythe stop-lever L; but when used as a repeater said lever is turned out of the way, as hereinbefore described.

` The mammina-The magazine M, Figs. 1, 2, 3, 4, 7,15, 16, and 17, is an open casing having a flat bottom mf, that merges into an npwardly-curvin'grear wall m2, partly inelosing the left side of the receiver R, below which the magazine islocated, the receiver constituting the topl ot the said magazine. The right side or front of the magazine is closed by a gate G, held in a closed position by .means of a latch that is constructed and operated as follows: The spring latch or lever A is secured tothe. upper wall g2 of thegate G by means of a screw s2, and is adapted vto engage a loeking-not'eh'N. On said latch A is secured or formed a horizontal journal a,

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Fig. 7, that fits into a bearing or eye (l, formed on the stem of a thumb-piece D, that is pro-l vided with a bearing-ilange d', so that when the 'thumb-piece is tilted toward the right the spring-latch is lifted out of the lockingnotch N. The gate is pivoted to the'magazine by means of a pivot-screw S3, and in its front .wall g3 has an opening, the front and rear walls of which incline outwardly and forwardly, '(see Fig. 16,) and in said opening is seated. the heel h of a strong spring H, having an arm h, formed at right angles thereto at its free end, that lies in a concave notch or recess 0 of a feed-lever O, pivoted to a Istud'or pin o', depending from the top of the gate.- The lever O has at ,its outer end a spoon-shaped head O, to which is pivotally connected the feed-plat-e Q, said plate having a central aperture provided =with bearings for a journal or pivot-pin q, Fig. 16, so that as the lever moves under the stress of the spring ll from the position shown -in the latter figure to that shown in Fig. 15 the feedplate will be able to assume such position as to remain at all times fully in contact with the cartridges. On tli-evback the feed-plate is provided with a longitudinal groove q', in which the lever O lies when the parts are withdrawn in the lid or held therein by the cartridges in the magazine, so that said parts fold together compactly. On one side of the fulcrum o of lever O is an abutment ct', that projects from the magazine behind the short arm o2 of lever O, which short arm, as shown in Fig. 16, is in contact with said abutment c', so that as the gate is swung farther open the'lever will be forced against the stress of its spring H into or against the gate, as shown in Figs. 1 and 17. When the gate is closed, the fulcrum o of lever O will lie so far to the left or rear of the abutment-namely, about at 021, Fig. 1G-as to allow said lever to swing fully into the magazine, as shownin Fig. 15. The spring l-I therefore exertsits full power on the lever O only when the magazine-gate G is closed, while when open the stress of the spring is taken up by the abutment cz.

It is obvious that if the magazine is lilled with cartridges a continuous pressure is exerted thereon by the feed-plate Q. The foremost or left-hand cartridge sliding up the curved wall m2 will lie along the slot 1 of the receiver. The magazine-gate G is or may be provided with a stop-lip g5, as shown in Fig. 1li, to limit its outward movement.

IVe have hcreinbefore stated that the rear end of the slot 1 in the receiver R is narrower than the front end, but is of such width as to allow a portion of the' rim of the cartridge-shell to project into the receiver in the path of the breech-bolt .il when the stop-lever L is turned out of the way, as shown in dotted linesin Fig. 7. As the breech-bolt is moved forward it impin ges upon the proj cctingend of the shell and carries it along, the bullet sliding up the inclined face L at the forward end of the slot, at which time the rear end of the cartridge hasalso reached the wider portion of the slot and will be forced int-o the receiver by the feed-plate Q or by the next succeeding cartridge. The inclined face 2 guides the bullet end of the cartridges into the breechchamber, as hereinbefore stated. In order thatv the last cartridge in the magazine may be properly fed to the receiver-,which can only take place by the feed-plate assum; ing a more or less inclined position to permit it to move up `sufficienti y toward the slot 1, we form the fulcrum-bearing 0 for. the lever O of an elongated slot ol, so as to permit the lever and plateto rake the inclined position shown in dotted lines in Fig. 7.

In guns of this description it is desirable to provide means for locking the firing pin against forward movement to prevent tlie accidental discharge of the gun. Ve have hereinbefore stated that the breech-bolt B has a rearwardly-tapering shoulder D8, in which is formed a longitudinal notch or recess hf that is substan tially semi-cylindrical in cross-section. In the extractor-carrier C is formed a bearing, in which is seated alocking-'pin C2,thatproj ects into the recess formed in the carrier for the accommodation of the shoulder bs on the breechbolt. That part of the pin that lies within the recess of the carrier C is cut away on a line corresponding with the inclination of the shoulder bs, (see Fig. 3,) so that when the flat face of the pin faces the shoulder the breech-Y bolt can turn freely in the carrier. When,

thumb-piece 022, the rounded portion will enter the recess b9 and lock the bolt against rotation. This can only take place when the bolt is in a given position-namely, in that in which the firing-pinis at f ull-cock, so that when the `bolt-handle b5is turned to the firing posi` tion and the locking-pin C2 is also turned the bolt is locked against rotation in the receiver.

thumb-piece c22 being then in the position shown in full lines in Figs. 1, 3, 8,and 9thus allowing free motion to the iiring-pin- Vhen, however, the thumb-piece 022 is turned up to lock the bolt, the cut-away portion of the sleeve bearing moves out of register with said handle end of the firing-pin, the sleevebearing lying in front of the shoulder f2s, thus locking the pin against movement.

Having particularly described the nature of our invention, what we claim, and desire to secure by Letters Patent, is*

1. In a lnecch-loadinggun,aiiringpin composed of two sections connected by a hall-andsocket joint, substantially ns described.

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In abreech-loading gun, a firing-pin composed of two sections connected by a ball-andsocket-joint, and a locking device for locking the sections rigidly together, substantially as described.

3. In a breech-loading gun, the firing-pin orbolt F, composed of the stem f, provided at its front end with the coupling-arm]c6 and Acoupling-head f5, in combination with the striking-nipple F', having the tubular portion f2 and the bearing f4 for the couplinghead, substantially as and for the purposes specified.

- 4. In a breech-loading gun, the combination, with the receiver provided with the re'y cess 4.and the lug R2, of the breech-boltpro? vided with thelrib or shoulder bs, having a locking-notch b9, a spring-actuated firing-pin having an endwise motion within thebreechbolt and terminating in a handle or knob of greater diameter than the body':of said pin, an extractor-carrier. having a tubular projection extending into the breech-bolt, a re- Y cess for the reception of the rib or shoulder b8- onthe bolt, a locking-pin pivoted in the extractor-carrier and adapted to engage the locking-notch in said rib or shoulder, and a thumb-piece connected with the pin,having a bearing-sleeve of greater diameter than said pin, said bearing-sleeve having a portion thereof cut away, substantially as and for the purposes specified.

5. In a breech-loading gum-'the combination, with the receiver having at its forward end an inclined face 9, of the breech-bolt and firing-pin, a shell-extractor carrier connected with the bolt at its rear end, ,and a shell-extractor connected with the carrierand having at its forward end an extractor-hook overlapping ihe like end of the breech-bolt, and having` its upper face inclined forwardly, substantiallyas and for'the purposes specified.

6. Ina breech-loading gun, the combination, with the receiver having at its forward end an inclined face 9, of the breech-bolt and tiring-pin, a shell-extractor carrier connected with the bolt at its rear end, a shell-extractor connected with the carrier and having at its forwardend an extractor-hook overlapping the like end of the bolt, said hook having its upper face inclined forwardly, and a shellejector arranged to yoperate on the empty cartridge-shell to release the same from the extractor and to eject it from the receiver, substantially as and for the purposes specified.

7. In a breech-loading gun, the combination, with the receiver having the lug R', provided with the forwardly-projecting stud 14, of the breech-bolt having the locking lugl or rib b3, and the ej ector-pin P, seated in an opening in said lug or rib b3, substantially as and for the purposes specified.

18. In a breech-loading gun, the combination, with the breech-bolt B, provided at its rear end with a rearwardly-tapering segmental shoulder, and the shell-extractor carrier C', provided with a groove adapted to fit and revolve on said shoulder, and having a tubular Unthreaded portion 02 extending into the breech-bolt, of the. firing-pin having an annular shoulderor abnt1nent,and a'coiled vspring mounted on said firing-pin between zine arranged with its inlet on one side of and below said receiver, and with its outlet on the opposite side and in communication with the receiver, substantially as described.

10. In a breechdoading gun, the combination, with the receiver, of a horizontal 1nagazine arranged with its inlet on one side of and below said receiver and with its outlet on theopposite side and in communication with ,the receiver, and a spring-actuated feeding device at the inlet of the magazine, adapted to feed the cartridges toward cr to the outlet thereof, substantially as described.

A11. In a breech-loading gun, the combination, with the magazine andthe gate thereof, of a locking device adapted to engage a locking-notch in the magazine, and consisting of a spring-catch and a thumb-piece or knob having a shank extending through the top of the gate, said shank being connected `with the spring-latch so that when the thumbpiece is tilted the latch will be lifted out of its locking-notch, substantially as and for the purposes specified.

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12. In a breech-loading gun, the combina tion, with the receiver and the horizontal magazine arranged with its inlet on one side below said receiver and its outlet ordischarge in communication with said receiver on its opposite side, and the gate for closing the magazine-inlet, and a cartridge-feedingv de- `vice consistingof a spring-actuated two-armed feedlever fulcrumed on a stud depending from the overhanging wall of the gate, said lever having an enlarged free end, and a feedspoon provided with an opening within which the enlarged end of the lever is pivoted, of

the. fixed abutment a', arranged between the short arm o2 of .the lever and said gate,wherc by the lever and feed-spoon will fold within the gate when the latter is swung open, as set forth. v

13. In a breech-loading gun, the combination,with the magazine, of a gate and a springactuated feed-lever fulcrumed within the gate, said lever terminating in a spoon, and a feedplate Q, provided with an opening in which the spoon end of the lever is pivoted, substantially as and for the purposes specified.

14. In a breech-loading gun, the combination,with the magazine, of the gate G thereof, the spring H, the feed-lever O, having the spoon-shaped head O', and the feed-plate Q, provided with an aperture in which the spoon end of the lever is pivoted, substantially as and for the purposes specified.

15. In a breech-loading gun, the combina- I IIO tion, with the magazine and a gate hinged thereto, of a spring-actuated feed-lever having an oblong bearing-slot for the fulcrunipin and a fulcrum-pin for the lever depending from the overhanging top of the gate, substantially as and for the purpose specified.

16. In a breech-loading gun, the combination, with the magazine and its gate G, of the spring H, the heel h whereof is detachably connected with said gate, the lever O, having been actuated by spring 1I and havingan oblong fulcrumslot, the fulerum-pin 0, secu red to the overhanging top of the gate, and the abutment a onv the magazine arranged in front of the short arm 02 of lever 0 between said arm and the gate, Substantially as and for the purposes specified.

17. In a breech-loading gun, the combination, with the receiver provided with the lug R2, Whose opposite sides are curved rearwardly, of the breech-bolt provided with the handle b5, the rib b4, and recess b, having the inclined wall bT of the firing-pin provided with the arm F2, having the full-cock notch f, substantially as and for the purpose specified.

1S. In a breech-loading gun, the combination, with the breech-bolt provided with the tapering projection or shoulder 128, having the locking-notch b9, and the firing-pin having the shoulder f2s, of the extractorcarrier C', the locking-pin C2 seated therein, and the thumbpiece C22, provided with the sleeve-bearing c3, having the cut-away portion the said parts being arranged for co-operation, substantially as described, for the purposes specified.

In testimony whereof We affix -our signatures in presence of two Witnesses.'

OLE HERMAN JOHANNES KRAG. ERIK JRGENSEN.

Vitnesses:

ALFRED l. BRYER', III. BoNNEvIE.

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