US1552457A - Firearm - Google Patents

Description

y Sept. 8, 1925. 1,552,457

c. G. swEBlL'lUs FIREARM original Filed may 17, 1919 l 2 sheen-sheet 1 Sept. QJ/'1W C. G.L SWEBILIUS l l FIREARM A Original Filed May 1'7, 1919 2 Sheets-Sheet 2 ,i Pfeefesepf' 1925 'I l ,y FIREARMS le 'l DELAWARE@ a Tb .@Zn'vhomff were@ fe. Belt known "thatfIgGARL GUSTAFSWBP 4 l'olefir,concise;and'fexact:decriptionfi if! "Thrsnnvention relates'. toffirearmsjand ,pliertvains more}especially'to' repeating-'for magazine r'l'les of f theV ltake#dowrnf type. In neJ type, of ,takedowng' rifles, the blarrelgis l v .front wall "of the lreceiverf and' preizentgthe .fw25jsuch that when the breech'ir'nfechn'is'mA is in lits locked .up position, aforward movement roftheaction slide will disconnect" it'rOIlv` .the

' #tion is a. single 'detent which willlhot'h mainlfftiri,andalso limit the`v forward uno-vement of vtheacton slide toprerentts disengage-v f y35 'ment from the breechfmechanisimwexcept [when the locking Inembers released'.

y cartridge feedery lever arm. Afvfurther-.ob-

" v jectofths inventionisfthe mounting ofthe' ,feeder-lever arm: is, lreli e fed. 'and lthe lever "arm *rests Yagainst the Y inner face, of the f magazinebottom until `the bottom is'rc'l'oised.

[The cartridgew'feeder is, ,thereforeyysofflol` seated' thatcartridges may*beleaeilyinserted' 'in orlremoved 'from the magazine.

A y mien will .be apparenti fljgmthe fellowilg Vented certain new and useful Improvements nrFirearm's, of-which':the following isaffuljl,

engaged 'with the receiverfby a,rotary.,movie` I. nient. offthe barrel1 relative`-l to' 'the' receiver, A reciprocatoryf-nemberfs `carried byv fthe -fvbarreljand is adapted, when'thefbarre-l isjin Yproperfpositiompto;"seatin'a reeese' in the ,turningf ofV the barrel.y f This 'ldcking-m'em- ',beriis maintained inflo'ckihg'piosition'by a i l-fthe'ybarrel and ,is 'movablerelative tojlthe"Y f flocking member.v The CQIlGGDn between i l."thefaction slide andthebreechmechanismrie g breech'mechanism. `Such `forwardmovement ,p ofthe actionv slide isnor'mally prevented/*by y .l-fvanrotherdetent.'v AnV objectl of 'this vinven' tain .the locking memberin its locking *posi-` Thistypeof glunfis'provided with afbox t pinagazinef the jbottom' offn which is pvoted y and has, mounted thereon yal springpressed I bottomy whereby Ywhenthey magazine bottom". i,'ie'opentheepringpressurel on the cartridge Other obj ectsjand vIviovel y yreatures of zthe' in-V specificationand* drawings.whereinllfiglflle f al Vertical section lthrough `thev receiver :with i* 'j v theibree'c'hopen.,thebreechfbolt;etc.floei11gf' y -1- 'in elevation; F1g.f2 is an elevationjpartlygj f 1n section, of thefrontpart of5th'e receiverand barrel, and' rig. 31S an, eievatiempajruyg r '.1 ilSeCtOIl, Of the receiver'with 17]@l magzine #bottom Openiv f f the barrel' 2 intoplaceand thev unsere-wing a breech boltla, vcarrieswjthe'barrel 2, ,screwsY into the'forward "ndof'the receiver,

y asV indicated at j, the 'screw' 'threade' y appropriate to permit the ready screwingof ably'tubularmember' extend-'S into a Socket 6 Vin the front wall'of'ftheireceiver, In'fthe forward end of the member 51S @uitv muon- 1f `v gatedfslot? through which projects a StudSvkv, l' y I rigidly attached to the'. barrel 2.l Bj means* of a vscrew 9 there connected to the studiaV dimensions; to ,firmlysupportlfthe tubular` member 5. An aperture` 1.1 is;provided.Ilfw .the tubular p `ml'ember tlrough s which fj the" .SCFBW 9 maybe inserted-orremoved.: f" i' A dogor detentlQ is pi otally mountedin .y a groove' 13 cut in 'the c'ylindricalfblockf 10 and its end' llextends beyondthefend','off themember 5. lOnthei inner endfof thedei:l

tentj 12 isa projection l5, the facefof whichV 1 is oblique. VIny they member fare cutftwo 7 Y v L apertures 16 vand 17, theformer of wlielfrfs A of a size topermt theprojection ldfoithe Y' A detent 12 to.,completely'.V protrude f'tl'iere'-,

through u'nder'proper. conditionsk and the latter of which is efulciently smallgto"allowthefl protrusionlof merely the'pointofthjeprof- ,:jeetiom The spring 18 'maintains "thel v tentlin opvc-irative position..`

-Sldably mount-ed onthef'tubular Vrnernberf f l" 5 ,is a grip "or, pump j handle 19 rom which .thefsljding actionrod 20 "entends'rea'rwardl'y'V into the receiver through 'a Isuitable slot fin ff. Y

l the front 'wallthereof. ,The connection bee 1 tweemthejaction rod 2O and the breech bolt Y "la islsuchkthatjwhen' lthe breech boltisjin llocked; position, the action -rodmaybefdi'se Y if Begag-d thereff-Qm merely' by vvterminal z CLI grip. The barrel is then latter protrudes through vthe aperture 16, as

shown in Fig 1. v

To take down the gun, the end of the member 51s grasped with the thumb and middle linger and the detent 12 V.operatet with the fore linger-in such a way as to withdraw'the projection V15 thereof through the aperture 1t. The tubular lmember is then moved outwardly and the detent released. The outward movement of the tnbular member is chec red by the contact of the lforward edgey of the projection 15 with the side of theaperture 17. "fhismovement disengages the inner end of the member 5 from the socket 6. The action rod 2O is then movedforvard by means of the grip 19 Auntil it is clear of the receiver, this being possible because of the aforementioned tlc-- tachable connection between thek breech bolt and th-e action rod and the fact that the projection no longer extends in front of the unscreived from the receiver. ln putting together the gun, the detent V12 and the tubular member are arranged with the projection 15 in the aperture 17 and the handle 19 forward. The barrel is thenscrewed into the receiver. A pull on the grip Vslidesrthe action rod, into .the receiver and into operative engagement with the breech bolt, and a pull, on the tubular member seats it in the socket 6, the detent being cammed up by the engagement ,of the oblique `face of the projection 15 with the rear edge of the aperture 16.

The detent 12 serves to hold the tube 5 in its locking `position and also serves to limit the forward movement of the action rod when the gun is assembled. T his single detent performs the functions which have heretofore required two or more .detenta The structure is therefore simplified and the taking down of the gun made easier and quicker,

In the bottom plate 21 of the receiver 1 is cut an aperture through which extends the box like magazine 22 whichis closed by the pivoted lid 23. Pivotally mounted on the lid 23 is a lever 24, the shorter arm of which is engaged by the free end of the leaf spring 25 to urge said lever into the position shown j in Fig. 3. A plate or cartridge feeder V26 VGO is pivoted to the end of the longer arm, and a springY 27 cooperates with the forwardend of said feeder to tend to move said feeder into alinement with said lever as shown in Fig. 3. J ust in advance of the trigger guard is a spring pressed plunger 28 which engages, when thehd is shut, the short armof the lever 24:. As this spring 1s considerably stronger Vthan the leaf spring 25, it forces the longer arm of the leve-r 24 upwardly and furnishes theV force to elevate the cartridges into position to be chambered. The downward movement of the plunger 28 is llimited by the stop 29 which'is so arranged that when the lid is open the'plunger does not engage the short arm of the lever 2a. The lever 24 is, therefore, free to assume the position shown; in Fig. 3 under the influence of the spring 25. The realr part of the upper Yend of one wall of the magazine is bent in as at 30 to form a stop to position a cartridge in the path of the member 31 on the breech bolt la and vis slanted upwardly toward the front wall of the receiver to cause a cartridge to be tilted by the feeder 26 and it also acts as a guide to direct the cartridge into the barrel 2. A resilient detent 32 cooperates with a hook 33 on the lid 23 to hold the latter in its closed position. By virtue of this arrangement, when the lid is open the lever 24k is held against the lid 23 thereby allowing the easyV insertion of cartridges into vthe magazine. As the lid is closed, the short arm of the lever 24 is engaged by the `plunger 28 and the lever is swung into engagement with cartridges in the magazine to force them upwardly and feed them successively against the bend in position 30.

It is, of course, understood that variations Yin Vthe structure :of-this gun may bemade without in any way departing from the spirit of the invention as set forth in the appended claims.

This application is a division Vof my copending application Serial No. 297,329, led May .17, 1919.

Vhat v is claimed is:

1. In a take-down repeating firearm, a receiver, a barrel, means for'engaging the barrel with the receiver by a rotary movement of one part relatively to the other. a member carried by the barrel an-d movable into and ont of engagement with the receiver to prevent the rotation of the barrel relative thereto when theV parts are assembled, a reciprocating action rod carried by said inember and arranged to enter said-receiver, and a detent both to engage said member to lock it in engaging position "with said receiver and to engage the action rod to prevent its withdrawal -from the. receiver.

In a take-down repeating firearm. a receiver, a barrel, means for engaging the barrel with the receiver by a rotary move ment of one part relatively to the other, a member carried by the barrel and movable into and out of engagement with the receiver to prevent the rotation of the barrel relative thereto when the parts are assembled, a reciprocating action rod carried by said member and arranged to enter sai-d receiver, and a detent carried by said barrel bot-h to engage said member to loclr it in engaging e. position vvitli said receiverV and to 'engage *tbe action rod to 5 the receiver. 1

barrel with theA receiver byy a rotary move- Y, ment of'v one ypart relatively to the other, a vrmember carried bythe barrel andl movable t f into and out of .engagement Witli'the receiver r[lock it in engaging positionvv'itli fsaid rejk y Yceiver andto engage the action'rod tof'prevent its'vvitbdrawal fromtbereceiver.

l 'barrel Witliftbe receiver'by'a'rotary' 'move'- "*mentofvone partzrelatively to the other, a

1L into and out of engagement with the receiver y thereto when the`partsfare assembled, a recipro'oatingfactionrod carried ,by` said inemcar'riedp by saidbarrel extending intosaid f recess, lockingmeanslcarred by saidsupport, Y

,fand an vaperture inftbe vvall ofV saidffrecess maintain said member inengaging n position with the receiver, andl to engage said vaction ,Y 5. In a takeedown repeating firearm, a re ceiver," a barrel, means jrfor engaging tbe l" barrel` With-,the receiver by a'rotary move-V ment vof one part'relatively tothe otliera member carried by tlievbarrelV and movable Y rtoprevent tbel rotation of t-lie barrel relative thereto Whenfthe parts are assembled, arey'ciprocating'action rod carried by said memi 2 berv and arranged to enter said receivenare- Y -f cessin one end ofsaidjmember, als'upport fsaid recess, a leverpivoted to saidfsupport,

fand aperture in tliezwall 'of saidre'cessyalug s on saidl lever adaptedto project vthrough said prevent its withdrawl fromYV ,pivotedldet'ent botli to engage saidjmember toiloc'l; it in'` engaging position vvitlil saidre- .n

c eiver and to engage rvrthe action rod lto Ypre-Y vent its Withdrawal fromV the receiveri y f j? 7 In a take down repeatingfirearmVar kkcei'ver, a barrel, meansv for eng-aging tlie bark 3; In a take-down `repeating kfirearm, ia re-y ceiver, fa barrel, means tfor engagingV vthe -Vto'prevent the rot-ation of tlie'barrel relative thereto when the-parts are assembled, a re-l 4. In a ytake-dovvlrrepeating firearm,v ,a ,'receiver,y a barrel, means for engaging the i' I lmember. carried bythe barrel land movable- 'i topreveiit the rotation-of the barrel relative i L vbei and arrangedy to' enter; said receiver, a recessin one end offsaidjmember, asupport tlirougl`1'-wliicli'the locking-means projectsto i 'rod to prevent the Withdrawaltliereof fromf n p Y p Yextending into said. receiver, andiale'ver into andv out ofi engagement With the receiver carried by-sa'id barrel and eXtending'intov ,Iii A apepture and engage end?v v0f ,v

f In atake down repeating firearm, are-V i ceiver,a barrel,l means for.engaging.tl1e ,l

parts are assembled, Y a f reciprocatinggactiy rod arrangedto enter` said receivenjan'd rel. with the receiver byA a `rotary7,.,movementil i 5 of one part ,relativelyto the otbena-a `meinber Carried by `tiiei'mrei and membrana preventV l, rotation of ,Y the .barrel"A vvlienv; the j` parts aref assembled, ,a reciprocating'l action engage vthe action' rod to f8; In a" take dovvn repeating tbe-receiver by la relative rotaryfmovement,

a tubular member'slidably carried by.. tbe.- :f barrel and niovable into locking engagement ,Y

with said receiver, a sliding action y-rod ein` tending into said receiver, and a detentvvith n 'i insaid tubular member both to engage said member to lock it inengaging position with @am barrel, means .for engaging theY barrel with 1 rod arranged to enter saidv receiver, and-Ja lever pivotally supported fro-infsaid' barrel both "to .engage-said' member` tQylock-jsit in Aengaging Vpositionvvitli- Said receiverV and to preventfits vvtli- -1 .Adr'a'ivalvf'rom the receiver?r` 'l said `VAreceiver andtofengage the action v`rod to prevent its Withdrawal from thereceiver;r

9511i a take dovvn. repe'atingjfirearm, a 95 i barrel, meansfor engagingtlie barrel'vvitlr tbe receiver yby.V arelativerotaryafmovement, ka tubi'ilar ineinberslidably carriedby!l V the barrel andmcvable infto locking en ,age-1 A ment vvitb said receiver, a isliding@` action rod .pivotally mounted Within said tubular meine'` ber both to engage said member'to lock. it in engaging position with said receiver and to engage the action rod tov preventfits lv vitb- `.f1x`;`1 05fm iirearin, ar 'y dravval from the `receiver'.VV

A10. In a takedown repeating barrel,ineans for engaging vthe 'barrel with if e' the "receiver by a 'relative' rotary move-5"' ment, a tubular member slidably carried ktbe barrel and movable into locking .engage-v mentvvith said receiver, a sliding action` rod Y Y i extending into :said receiver, a cylindrical he member carried by'said barrel and-located. f

Within said tubularmember, ai'idfaflever pivoted to said ,cylindrical member, "saidv lever beingadapted to project 'pt lirouglfi an f aperture in said tubular member to maintain Y it in engaging position with'. saidrecei'verg and 'to cngagetbe end ofsaid action rod to lprevent its 'Withdrawal from theA receiver. Y

In Witness whereof Ihereuntoattacli my Y' signature tliis 19th day of December 1921@ izo] f

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