US1795111A

US1795111A - Firearm

Info

Publication number: US1795111A
Application number: US330197A
Authority: US
Inventors: Charles B Dygert; Coral T Van Alstine
Original assignee: Remington Arms Co LLC
Current assignee: Remington Arms Co LLC
Priority date: 1929-01-04
Filing date: 1929-01-04
Publication date: 1931-03-03
Anticipated expiration: 1948-03-03

Description

Patented Mar. 3, 1931 JTD STATES Parent orrics "CHARLES B. DYGERT AND' CORAL T. VAN ALSTINE, OF ILION, NEW YORK, ASSIGNORS TO REMINGTON ARMS COMPANY, ING., A CORPORATION OF DELAWARE FIREARMI Application filed January 4, 1929. Serial No. 330,197.

`The present invention relates to improvements in firearms, especially of the type set forth in copending application Serial No.

310,305, filed by Crawford C. Loomis, October 4, 1928, wherein is disclosed a firearm of the single-shot breech-loading type. Manual operation of the breech block, after firing, causes actuation of an extractor member which withdraws the fired shell from` the io breech to a position for manual removal.

It is an object of the present. invention to provide an improved mechanism actuated by movement of the breech block to not only extract the fired shell but also to eject the l5 same clear of the firearm, thus leaving the breech open for a fresh cartridge to be inserted therein. f

It is a further object of our invention to provide, in a firearm having a predetermined Vrequired sequence of operations for its breech closing mechanism, anejector device, the operation of which cooperates with the required sequence of operations of the breech closing mechanism, in order to insure a high "i degree of safety to the operator of the rearm.

Irt is a further object of the invention to 1provide in a firearm having a removable barrel a combined shell extractor and'ejector mechanism which, on removalof the barrel, will not be deranged, but nevertheless will be accessible for cleaning and lubricating.

With these and other objects in view the invention consists in the novel combinations and arrangements of parts as illustrated by the preferred embodiment described in theV following specification of which the accompanying drawings form a part.

' ln the drawings:

Fig. 1 is a fragmentary longitudinal elevation in section of our improved firearm showing the parts in the fired position.

Fig. 2 is a plan view of the receiver portion with the barrel removed.

Fig. 3 is an inverted plan view of the rear end of the barrel showing a portion of the extractor-ejector mechanism carried thereb yFig. 4 is an enlarged fragmentary sectional elevation of the receiver and the firing mechanism and extractor-ejector mechanism housed therein. f

Fig. 5 is an enlarged fragmentarysectional elevation of the receiver showing the rela tion of the parts after the ejection ofa tired shell, and with the breech open ready for the reception of a fresh cartridge.

Fig. 6 is a transverse section through line 6-6 of Fig. 3.

Fig. 7 is an end view, taken as indicated by the line 7 7 of Fig. 3.

With reference to the accompanying drawings, the numeral 10 designates a barrel detachably connected to forearm 11 by means of screw 12 passing through the forearm and into the lower portion of the barrel. The barrel is detachably mounted by means of a take-down mechanism on a receiver portion 13 which houses the firing mechanism. This take-down mechanism comprises a plug 14,

tapped into the lower portion of the barrel, and counterbored and threaded to receive a take-down screw 15 which passes through an aperture in the receiver. The usual stock 16 is attached by a tang screw 17 to the receiver. t.

Within the receiver a breech block 1S is pivoted at 19. The breech block is formed with an upstanding portion 2O which houses a firing pin 21. A hammer`22 is pivoted at 23 and a trigger 24 is pivoted at 25. S ring pressed plunger 27 inthe trigger piece eing urged against an abutment 26 in the receiver wall tends to hold a. nose portion 28 ofthe trigger in an-elevated or hammer engaging position (Fig. 5). ,A notch 29 is `provided in the hammer to be engaged by the trigger nose to hold the hammer in a full-cocked position. A notch 30, somewhatdeeper and shaped to engage and loch the trigger when the hammer is in a half-cocked position, is also provided in the hammer.

As more fully explained in the co-pending application Serial No. 310,305, referred to above, the loading and cooking operations take place in a definite sequence in order to insure a high degree of safety to the operator of the firearm. If, after ring, the hammer be retracted to the full-cocked position (not illustrated), shoulder 32 on the lower forward portion of the hammer will be raised to such a position as to form an abutment for a heel portion 31 of the breech block, and thereby prevent the breech block from swinging downward far enough to expose the breech for inserting a cartridge therein. rEhe half-cocked position only ofthe hammer will permit the breech block to be lowered yenough to clear the breech for loading (F ig. 5). Depression of the breechblock is afforded f by .f manipulation. of ifknurleld tin ger piecefi mOunteLdLaatIthe side-.aofithelbreechbloclr by means of an integral shank which extends transversely through thebreech blocl,"th'e shank also serving to limit the movement ofV firing pin 21 by its position in an Yelongated .depression in thetop of. the pin.

' In the red position of the xhammer,V` as sshownin.Fig. .4 ashoulder:f portion 34,whose .surface is arcuate and .concentric vwith ...the vfha-miner. pivot23, .will engagetherheel por- .tion of the. breech block. in kline', with., .the pivot 23 to securely..lock the breech .blockl in breech closingposition-lat the4 time .of tiring.

A spring serves as a hammerfspringto `I irgethe hammer into itsired position. (Fig. 4). This spring 35 issupported v4spring .pilots-36;.and ,37. telescopioally receiving each Aother,. the spring. 35 :bearing on .shoulder .portionon each of the pilots,.as clearlyehown. i Oneof. the spring. pilots bears .on hammer '22, ...and the .athen pilot bearson thebreech block l18. .Th-us, `thefspring,fserves not: only..as Fa. :hammenspring but also, topyieldingly hol-.d

. L.the i breech. .block lin :breech closed position.

A335 It wilLbe seeninjlig.y Y5-that the:..sp1.ing .35 Hbearing. onbreeoh block .18. exerts its force below. the, pivot.. 19,.T thereby .yieldingly holding tlieibreechblock in its lowermost. position. shifting. the!V line of. thrust ofsad spring .fao from .the positionshowninFig-f tothe positionshown inA Fig'. .4, or` viceversa, .the breech. bloelLm-ayrbe held; in-either ,open position or closed position-.ot the breech.

Manual depression of the breech ...block .45 causes operationot V,our.improvedfezgtraetor- Yfejeetor -.;niechanis1n, #which mechanism will @now be described. .A combined extractor- .eectoramemberyas shown 40, nijdingfin .a grooveY :or channel @.41 .formed in the lower 55o :rear portion ofthe barrel, isstabilizeidby flongitudinal.- guides 38 integral .with the eX- .,tra'etor member, .which-.alsoride in recesses 'iormedinf the barrel,` as shown inv Fig. 7. -The i member-.40m nr-gefd rearwardlybyspring 42,

c55 @which i spring Abears vagainst plug ,-14 at its forward end. A, transverse pin-..43 positioned V- ianffelongated.- recess '44 .ini the .lower por- .tionei member -40` 'retains theV member; inv its guide channel. At the; rear portion otmemeeo flier-:40. is; formed la, .project-ing. lip 45..adapte1d .to-engage the rim of-a cartridgel shell. .At the .lowersideof member 40 7areforli-leid two Indownwardly projecting 1-u-gs.46 -and147- which aar-'egzadaptedid been-gaged by-.memb ers onA the breechibloclr asswillube. explanedhreinatter.

Y BreechV block 18 is cut away as at 48 to provide a space for a sear member to move vertically through a limited arc around a pivot 49. A spring 51, seating in a recess 39 in the breech block, engages the lower` forward portion. of thesear .member 50 tourge` the sa-me upward into engagement with a stop pin 52. The sear member 50 at its forward portion is cut away to form a bearing v.seat for? lug l471..of-'the extractorwmemben At-.a1 .point inrit-he downward: movement of the breech block, the member 50 will 'disenwga-ge the lug 47, and during this movement,

in ordertoprevent binding of the parts andv to insure a smooth action, the member 50 is .permitted to Amove..slightly about pivot 49 -andfagainst'zthe resilient influence of spr-ing .51. A- transverse,r 5.3 sprovided inthe recess 48 of the breech block: Vformoveme-mt lwith the breech block,.and .is positionedito. ,be y I 1 engaged byy lugs :46..and-.47- to; limitand. con- .trfol the. movements ofthe extractor member.

iTl-ie operation, ofj .our-.improved extractor- ...ejector mechanismis Aas follows:

Assume that in' .Fig --4 A the shell .in the s.

l.breechlhas been .-redand-is 'now ready to bei removed .from fthe barrel. .By bringing -.`the hammer nto /afhalf-coclred position, ,as

shownz inFig. 5, the, breech )may be depressedV pressingdown .onnngergpiece .33. .During the lirstgpart of this.downward-movement (referring/to Fig. 4) the pin-53and sear imember-50-willbe eaused tomo-ve inanfarin its upward movement by pin 52 from'the pressure offspring 51..will tendntofrmove away .fromj lug-\47. Atfa pointY in the :downward movement of the-breech.block` itwill be seen that a position will.A be reached `.where the scare() .will-,bes disengaged from. the` lug 47, and will suddenly. release the same causing the r-.extractor mefmber1 40 s to snap -fsndfdenly rearward under the pressure .of its. lspring -42 until lug 46strikessharply against pin. .53.

.llO

The inertia .oftheshelh being carriediby the extractor; will then cause it to clear-of the firearm. Y Y

The position of the breeclrbloek-atwliich ..sear-50 .will -releasefits-.hold.upon lug 47 Willi loccur fra'fterthe breech block .has been rocked to sa position just A:below the 1 point `where furthermevement of the breechblock would be limitedifl the. ham-mer were in full'- 'rcoelred position, as heretofore .-eXpl-ained.

VVTh us, ejection j. of,A the 2 shell can take i. place .only in the; half-cocked; position of the hammer. This insures that the required Ysequence i of Voperations `i.prevcously ezgplained `nzgillfnot fdisturbbut willrcooper-ate .with the Cil operation of the improved extractor-ejector mechanism.

On returning the breech block to its upward position, it Will be seen that pin 53 bearing against lug 46 will canse the extractor member to begin its return movement, and the engagement of the breech block with the extended end of the extractor member 4() will cause the extractor member to be fully returned to the position of F ig. 4, whereupon sea-r 50, aft-er yielding slightly under the pressure of spring 51 to permit lug 47 to pass, Will re-engage said lug, as in Fig. 4. v

It will be understood that various modifications and changes inthe shape, size, construction and arrangement of some or all of the parts of this invention may be made Without departing Vfrom the spirit of the invention as hereinafter claimed.

What We claim is 1. In an ejector mechanism for iirearms, in combination, a receiver, a firing chamber, a pivoted breech block mounted in said receiver movable to close said chamber, an ejector member slidable to move from shell engaging position in the breech to a shell ejecting position, means whereby movement of said breech block will positively exert an extracting movement to said ejector member, and means controlled by further movement of said breech block to impart a shell ejecting movement to said ejector member.

2. In an ejector mechanism for firearms, in combination, a receiver, a firing chamber, a breech block pivoted in said receiver and movable to close said chamber, an ejector member movable from a position adjacent said chamber to a shell ejecting position, means whereby initial movement of said breech block will impart a shell extracting movement to said ejector member, and other means controlled by further movement of said breech block to impart a shell ejecting movement to said ejector member. j

3. In an ejector mechanism for firearms, in combination, a ring chamber, a receiver, a breech bloclrpivoted in said receiver, an ejector member movable from a retracted position to a shell ejecting position, means carried by said breech block engaging said ej ector to restrain the same from moving to shell ejecting position, said engaging means being releasable at a predetermined point in the movement of said breech block, and additional means carried by the breech block engageable with the ej eetor member to positively impart a shell-extracting movement to said ejector member.

4:. In an ejector mechanism for firearms, in combination, a firing chamber, a breech block pivoted to close and open said firing chamber, an ejector member, means carried b y said'breech block engageable With said ejector member and movable to release the ejector member during the opening movement of said breech block, other means carried by the breech'bloclr engageable with the ejector member to impart an extracting movement to said ejector member, the said last-mentioned means being also engageable with the ejector member to stop the movement of the ejector member afterrelease by the first-mentioned means.

5. In a firearm, in combination, a firing chamber, a pivoted breech block, a hammer, a. trigger adapted to hold said hammer in either of tivo positions, an ejector mechanism operable to extract and eject a shell, means preventing operation of said ejector mechanism When said hammer is held in one position by said trigger, While permitting operation of said ejector mechanism When said hammer is held in the other of said positions.

6. In a firearm, in combination, a tiring chamber, a breech block, a hammer, a trigger adapted to hold said hammer in either of two positions, means whereby the breech block obstructs the chamber when the hammeris held in one of its positions, the breech block being permitted to clear the breech in the other held position of the hammer, an ejector membermovable to extract and eject a shell means whereby the ejector member is prevented from moving for shell extraction and ejection when the hammer is held in the rstmentioned position, the said last-mentioned means permitting movement of the ejector member for shell extraction and ejection when the hammer is in its other held position.

7 In a firearm, in combination with a receiver and a breech block pivoted therein, an ejector mechanism comprising an ejector member movable from a retracted position to a rearward shell ejecting position, said ejector having two engaging means, a device carried by said breech block engageable with the irst of said engaging meansto positively move said ejector member away from its retracted position, said device serving also as a limiting stop to be engaged by the second engaging means at the shell ejecting position of the ejector member.

8. In a firearm, in combination, a ring chamber, a receiver, a breech block pivoted in said receiver, an ejector member movable relative to said receiver, means for positively moving said member to extract a shell, resilient means for imparting a shell'eject-ing movement to said member, and a member piv- `oted on said breech block and engaging said 'ejector member to control the movement thereof.

9.'In a firearm, in combination, a firing chamber, a receiver, a breech block pivoted in said receiver', an ejector member movable relative to said receiver, mea-ns for positively moving said member to extract a shell, re-

silient means for imparting a shell ejecting lil() Cil cmovement offfsaizdfejector member.

10. l'nria nrea-rm, in combination, amring fcliamber, zasrece'ivcnnw breech blockfpivetalf ly i mounted :for-movement: in said.; receiver, a i' hammer, aa f trigger adapted to hold i said 'fliannnening eithera safety position `orza firing position, means interposed between said ibreeel'i block :fanfd said .i hammer permitting .fnll'moveinentef the'breech' block When-said v4hammer:fis infsafety' positionf'but restricting jsaidfmovementwvhen the .lia-miner isrcmoved i'from: saidposition, anfejector "member" mov- -ablef to extractiaird ejectrashell, devicescontrolled by the :full 'movement :ofV thef'breech 1 blocle to bloeit-ate the: ejectori member. whereby shelL :extraction :sand i' ej ection; are prevented --when the' ham-merlisf'removed from its; safety position, and permitted When the hainmeris ;ifn.safety1 position. Y

ill. flfinfzvv lirearm, in' combination, 'var rin'g chamber, ,ai-receiver, .ai breech block pivoted .in sail receiver for movement therein, an

-fejector member'4 movable 1 relative; toi-saidTevfceiver, means ffor positively "moving said mem-ber' to I extract a shell, resilient 'meansfor imparti-ng a shell :ejecting movement' to said l member, L: and means. carried Lnby' said; breech lblock'torestrain said member' fromfshell eject- -ing movement :until released' by .movementof 'saidbreecli-'blocln E12. fln sadirearm, inI combination, a .irin'g chamber, a receiver, Va'breech block pivote'd. 1n

: said receiver for movement therein. anV ej ector member `'moval'ile Arelative :to said receiver, meansfor positively moving-said member to extract a shell, 'resilient means forv imparting #a 'shelleej ecting movement to said member, and 1a memberf pivote'dl on said breechv block andengaging saideje'ctor.y member to restrain fsai'd ymember -rom shell ej ectinghr movement iuntil released by movement I (ifea-idY `breech ',bl'ock. Y f

13. lx1-'a irearm, 4i-n` cembinatiomla 'irng chamber` Aa receiver, a breechblock vpivoted in i Asaid receiver for 'movement therein, an ejector member movable relativerto said receiver, means carried by they breech block enfgaging said member fer-'positively imparting a` shell' Vextracting movement thereto,` resilient means for imparting a shellfej ecting ymovement*to said member, and means carried 'by said'bre'ech block to restrain said member fitrom shellfejecting movement Yuntil r released i 'by' movement of said Abreech block.

*14. 'ln `airearm, f in*v combination, firing chamber, a receiver, a breech f block pivoted in said receiver for movelnent therein, an eject-or member lmovable relative to ysaidreceiver,'means carried by said breech block-eny -gagingl saidfmember foripositively imparting Aa shell extracting movement to said member, resilient meansffor imparting la shell'ej ecting fmovement eto ssai'd member, @and :a I member 379mm Y "pivoted oni ysaid breech :fbloclc andffengafging said ejector member to restrainsaid-z ejector member. from' shell fejecting movement until 'ireleased by movement yor .said breech block. :15; fIn o a '.iirea'rm, in combinati-on, a irng chambena receiver,za breech blockv pivoted; in j :said receiver,an ejector membermovablei relativeto said receiver, two depending lugs car "ried byffsard: member,^fastop' element carried by said breech block and riding between saiol l sa-id Ysearbeing releasable r from ysaid lug toY permit a shell ej-ecting movement i 'of said ejector memberfrand,y resilient means carriedY by said "breech block normally "urging-said fsear toward its lng'engagingposition.V

117. A,InraA firearm, in combinatienfa firing chamber, a receiver, al breech block pivoted in said' receiver, an: ejector member movable relative to `ysaid` receiver, a projectionl formed on saidz ejector membe'nnmeans"carried by ysaid breech block engageable With said projection to impartan extractingl movement f to said `member on movement of saidfbreechfblocl, additional means carriedby said breech block "engageable -With said projection to restrain Ysaidv member 'from ej ectingf .movement and to .release thefsame oniurther movement of the :breechr block. Y h

18."Ina'irearm, in combination, aring izchamber, a'receiver, 'av4 breech bloclrpivoted :in saidreceiver, an ejector memberzmovable "relative to said receiver, a projection formed on said, ejector-member, means carriedby saidbreechblocl; engageable With-said prolll) j ect-ion to impart anextracting'movement to member from ejecting. movement and to re'- lease-the-sa-me von further-movement of-the Y breech' block.` o l j CHARLES B. DYGrERT.

VVCORAL T. VAN ALSTINE. i

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