US528905A - hepburn - Google Patents

Description

(No M0de1.\ '3 sheets-sheet 1.

` L. L. HEPBURN.

MAGAZINE GUN..

No. 528,905. Patented Nov. .6, 1894.

' ATTORNEY (No-Model.) 3 ShLeets-Sheet 2.

` L. L. HBPBURN.

\ MAGAZINE GUN.

No. 528,965.A Patented Nov.'6, 1894.'

nung

' ATTORNY (No Modal.)

l Patente-ad Nov. -6, 1894.

3W m h s Law. e e. .n s 3,. N... DMN. UW. B PB EN I L... .M L

,L'Fwis L "HF'FBUFN, o F NEW imfvarr,- ooNNForIcUTQssIGNoRTo THF A-MAFLIN FIRE AnMscoMFANncF SAME PLACE. t

` 'SPEQliFlCATiON forming pari-.of Letters Patent No; 528,905," dated November 6,1894.

5 and 'useful Improvements -in Magazine-,'Firei `f ia'ildxa specification.

. g2 My inventi'on relates to new andfnseful'imi; proveniente 1n magazine firearms and consists x o in th'e Duvel arrangement and combinationof mechanical parts hereinafter fully-described. The object of my invention is to. constructa uewjand improved magazine:firearm that shall consist'OcOmparatVeIyiewparts,fthat r 5 shall-bef simple in operation, that can be easilytaken.down tor the purpose of cleaning, andjthatvgillrapidly and electiv'ely perform the functions of loading, ring nd ejecting f theammunitionto be used therewith.

v 2 5 mechanism." -1 Fig..2 is a side elevation' 'of'my -inyentionthe interior "mechanism i-n another' position, and .shown partlyin central longi` tudinal section. Fig; 3 isa side elevation of 1 '-myinvention; the interiormechanism' being gol-shown in a' different' position, and partly in 'longitudinal section; 'FigAisacrosssection on line -w Fig. 1,.t he interior mechanism being in the position shown in Figi. Fig. 5' 'is a similar sectional view',`the me chan i'sm be- 35. ingin the position shownv in "Fig: 3.1' Fig. 6 vis aview of the lowerside of the-breech' of 'the-gun. Fig. 7 is a sectional view of'a recipergcatinghandle and connecting rod, Fig'.

- 8 is a side elevation of the breech-block 'and view of the opposite sideof the mechanism shown in Fig.'8. Fig. 10 isayiew of the lower side of the breech block and firing-pin. :Il is a plan'of a portion of the breech-block .ts'illustrating the cartridge extractor mechan ism. 4 Fig. 12 is a side elevationof the carrier block.' Fig. 13 is a. similanview of the oppo- Fig. 14 is a section taken on the line y-/y 5c Fig. 12,- looking in the direction of the arrow 'indicated thereon. Fig. 15 isa view-of vthe trigger, :butgon' the contrary, is caused by' the;` 6l

gun and-forming :this receiver is out away aslshown, to permit ito permit a slight play..

spring G. 'A

o .locking-bolt combined. Fig. 9 isa similar Fig;

site side ofthe mechanism shown inFig. 12.'

ldwe'iside 'or .the honig-bon.. Fig. 16 is a Q f plan view ofjthesame, and Fig; 17 is a side .the-cityand county of'lfewHaven, and State; 1 f @Qnecut ,hfiveiinvente'dcertain' new elevation of thesame.'

' The subject matter of this inventiohiis' ap-f 5 1 plicable to eitherimagazinerifies or sl1o`t-guns, but it'constitutesmore;of an advance how- 4 ever i111` the art of manufacturing -shot-,g,funs.

very compactly, assembled. The operatiniis' 6i certain ande'EectiveI-f The cartridge vinjecting' and; ejecting mechanism is not controlled through :the 'mediumlof a swinging 'lever worked by thesame hand that operates -the other hand which grasps a reciprocating hanf dle'which'is adapted to slideunder the maga.- zine' chamber` therebyv dividing'the work 'and sofacilitating the more rapid loperation of 'there-arm. Furthermore, by keeping the trig- 7c ger pressed theiirefarm maybe operated by A the reciprocating handle alone, as hereinafter' fully described.` A is a receiver located in thev breech ofthe 75 partt'hereo The side of the introductionpfr'a sliding breech-'block`,B. A'

I Through 'this opening .in the "side the dis# chargedcartridge shells are 'ejectedL.-"

D is aloc'king-boit, inserted'in a' recess inf8o the under side 'ol'the breech-b lock'B4 and adaptedito loosely-.tilt therein upon a pivot E.

.- The hole in theiocking-bpltihrough .whimne pivot E extends should be of slightly greater diameter than the diameter'oi 'the 'pivotso-as F'is a firing-Pin5 associated with the breechblock-1B in the ordinary mannen-said firingpin beingprovided witha suitable'retracting 9 H is a horn projecting from the-rear and upperside of thelockiug bolt and adapted' to perform -the functions hereinafter described. Secured to the forward lower side of V,the lock' ing-bolt is a downwardly projecting shoulder 95 an inclined slot J and with an inwardly projecting stud K, both for the purpose hereinafter described. The firing-pin F is `provided near its rear plate I. The shoulder plate I is provided with end,and directly above the horn H, with a groove L,into` which the horn may slide when the tiring-pi is in its forwardposition.v See' Fig. 2.' By preference, the forward and rear edges of the horn H are. inclined as clearly BhQvtn -ir ,Fig- 1s, 21,3., and man@ the sidesof-he grooveiin the'firing-pin are correspond-f1 ingly inclined','so-'thatfwhen 'the lockingl-bolt is tiltedntozthejliorizontal position-the rear nclihd'ed'ge of the hr'n pressing agailist-thel rear. edge of -theslot L inthe iiring'jpin--wilb cause bycam actionv the tiring pin ,to retract and hold-it, as' shownin Fig. 3, `u'ntil Ythe car tridgeijs fnllylseated lin the breechofthe-bar- -rel andthe mechanischv locked, lso that anaccidental-blow from the hammer cannot force thering-pinorward to discharge the car- .tridgevuntlgthe proper time.v Although the retracting 'spring will ordinarily-perform the `fnncti'on ofretracting saidringfp'n, never-d 'thlseiiaald-ihecartridge primarie-forced. 'into 'thefforward opening. through whichthe" -point of 'theiiing pin projects so as Atolog; 'the said-tiring pin so that the retractin g spring ,G might not operate to force back 'thejiiring pingfthe horn-'1i will surely do so. The lower 'iside 0i..:ther.i i1gf Pini may be. vprovided.Wirth, a .horizontallgroo'vetM communicating with rthefgro'ovL'o'r maybe iiattened off, so that when the mechanism. is in position for firing, theupl'ier end ofthe horn H will rest in the said horinental groove, or against the flat -unf der side ofthe firing pin,'so that itcannot be raised; therebycausing the mechanism to be locked. (See Fig. 1l) 4 1 The ioc'iiing-4 bolt as above .indicated 'is looseiy pivoted in the breechblock and when in 'the v'horizontal position the said 'breech block is' free to reciprocate. When it is tiltedV -into-thepositon.indicated in Fig. 2, the rear end ofthe said locking.` bolt ltilts kdcwnand rstsagainst the rear linner end of the frame Af'. .At chey same, time -the forward endfrises :and rests-againstthe forward inner en d of the. breech-block'B, so as toprevent the said breech block from being retracted i'n the slightest degree; By preerence the iz'orward end of "the locking bolt is cut- 4o n a slight Acurve asV indicated. The .point from which fthe said-curve iss'truck .being-slightly' below s jth e ce nterof the pivot" E-,th'e forward innerfend of .the breech-blockjs cut on a similarenveso 'that when the lockingbolt is tiltedinto the` positibn indicated Iiii-Fig. 2, theforwarde'nd of the locking bolt will operate as .a a'mfto setwthe said parts very tightly to'- getherandj 'to' 'securelyhold the breech-block inthe' extreme .forward positiornl -Th fact that-'the lking-bolt isloosely pivcted to `the '-breechfblockpermits' a cani action betweenf said' parts which, although slight; is su fticient to hold the part's't-ogether'very tightly. This c'urve'at the forward end ot the locking bolt, will facilitate the disengagement of they parts, when it becomes necessary to tilt the locking Y bolt into the horizontal position. 4

The recoil occasioned bythe discharge of the cartridge is taken first by the forward-end of the breechblock, then by the'forward end .if Nfis areciprocating hahdleadapted to vpuder themagazine'chamber 0. t t of whichis secured'to the handle, the opposite onderztending inside'- the frameA and is provided, near the inner end ,with a stud'Q., The per- A of 'the' locking toit 'and nien `i11i 'transferred directly against the rear inner end of `Arthe frame., as`. shown, so that the firearm is- `vary Strongly frifie against. the esfny fof the Vcartridge to blew out the breech-block. Slide is a connecting rod one end foration or slotlinthe forwardxend of the frame A through which the connecting' rod'P projects is, siiiicentl'y long to afford a bearing surface-toprevent 'vertical or lateral-displacement 'of the handle,'s0` that, eventhough thegunjcou/ld 'be operated. 1 'The presence of, the magazine c amber, hcweveaacts 'as an the'magazine chamber were dispensedwith,

additiona'lmeans'f preventing-displacement.;

i The stud operates 'in theinclinedslotl f yot the locking bolt platel and thebackward and forwardi'novementof.V the reciprocating handle is thereby imparted iothezbreechf block Bg A.projection R extends .f rourjlhe l side of the plate I'. Thi' sproection-'isv adapted toslide in 'agrooves milled in the inner side of the frame adjacent to said projection R. The forward y'end of this grootse is.. consider- ,ably widened,.asshown in Fig.- 3, so that .when themechan'ism is in the position shown in Fig. 2, it will permit the locking bolt to be i tilted forithe purpose of locking the mechanism as above recited. This tilting is ,caused byl adyaneing the. sliding breech block B forwa'rd until the breech block abats against the breech of the barrel.-

, A s shown in Fig. 3 ,it-.will bessen* that tilting jthelocking-lbolt ont of the horizontal f 'position during ,the lockingmvelnent,.the-

forward edge of the horn will necessarily bear againstthe forward end of the recess L in. the firingfpin, and, inasmuch as thesaid .adf`

jacent edges are inclined forward atan angle,` thisjdownwardmovement of the horn H will' ,necessarily caused the tiring-pin kto advance slightly n ntilthe horn passes below the lower edge oft-the forward end of vsaid. slot-1L, at

which moment .the 'retracting-spring G willeaujsexthe firing-pin to again slide back tojitsu extremexretra'cted position, so that-the. lower side of the'ring-pin will slide slightlyover the upper end of the horn H,as clearly shown in Fig. l, thereby preventing the locking-bolt from being tilted until the firing-pin is ad- ;vanced as abovedescribed.. At this point the stud Q rests inl theupperendof the inclined 'slo t J By pushing thefhandle ahead still farther, thev slot J rides up on the stud Qand tilts the locking bolt up until the stud Q rests in the lower end 1of said slot J. :At the forward end of the breech block and on the side adjacent to 'the opening in the, frame-isa spring extractor hook T of the ordinary construction and onthe opposite side is 'a finger U. Between the spring and' this' finger, the annular bead. around the head cf-the carcasses trici-gais grasp-ed in the usual manner. n

the innerside .or the frame and projecting 'from a recess in the frame A is a'spring arm V provided with an outwardly proj ecting step f' 5. or-shoulder ada ted to'stand inl the way ofand hit against t e end of thecartri-dg'efhead when the discharged shellis' f ullydraw-n'-fr0m the .breech of `the.`gnn barrel, andwhileit'is being moved. backward, thereby-:causing the.. zo said shell to be ejected through theopening -in the side of the frame. y f The mechanism by which the :cartridge is taken from the magazne..and;thrown into position infront of thebreech block B and there-f i .by pnshed'into the breech of the barrel, conisiste oa carrierWpivoted at'its rear end .to

the frame; This carrier-is adapted to' be intermittently raised and loweredby means of :the stud-K projecting from the docking bolt 2o plate I, and moving-in' a'groove Yin-the ad- -i jacent side of the carrier as the breech'block fand locking bolt advance. orj're'treat.' The lowerside of the frame'o-rireceiver A is cutl '.away to vpermit the' carrier'W- to lower into z 5 theposition'shownin Figi-3, andto alsopermit the cartridges to be inserted into the niag'a'.-

"zine,through the recess thnsfformed, when 'thecarrier'is in the positinshown in Fig. 2:-

'The rear end of the slot Y in the 'carrier curves bymeans'of thewell known coil spring con'- tained' within. said magaziney the same;

means, as the. breech b lo'ckis advanced,t'he 4o carrier .block is raised, as above indicated,

'andthe cartridgeis quickly thrownupinfront .of the sliding breech block, by which means itis pushed into the barrel Y. 1 The device whereby he cartridges are held' `in the magazine, until such time as it is'necesf,`

sary toa-How one to slipxoutis'- a ,spring- This spring is preferably-estima recess inthe side of the receiver A, thfe'rear. end being fastened, the frontend free."From the outer 5o face of this spring projects'an inclinea which normally stands above the slotted recess in' which the spring isset and which actsas astop to-prevent the cartridgefrombeingexpelledfrom the magazine until it is depressed. 5 5 The sides of this incline a arebeveled, so that when thelocking bolt is tiltedinto the hori-" zontal-positio'n, the lower edge of tlie lplategI will slide overanddepress the said incline a causing the same to retreat away from b ehindo the cartridge,-thereby 'permitting it to be expelled against the forward end of the carrierv W, which is then directly'behind it.'

It will be observed .that there is a slight space between theforward end of the carrier Wand the head of the cartridge, when the cartridge is -held forward by the spring Z, so that when'this spring is depressed, as above 'indicar-ed, and the cartridge slips 'back and 'abuts'against the end .of-the carrier-block, the i annularbeadfaround.the head of the cartridge will cause the spri-ngZ to be held backso that' as the plateI-is continued to be moved back- .Ward,.because of itsdirect association with the'locking bolt, the spring Z will not per-.. ateto hold-the cartridge'. When the breech block approachesathe posit-ion show-n in Fig.

.3, thecarrier W'asfabovesstatcd is quickly 1owered .and 'the cartridge willbe'expellcd from the magazine-into the position indicated` iii-Fig. 43, the vspring Z will rise to vits .nor

mal position, and prevent the nextcartridge' inthe magazinefrom being expelleduntil thepropertime. r- 'e The mechanism thus far described shows the. operation 'of expelling the cartridgefrom the magazine at theproper time'i'nto the frame raising itat the proper timeby means of 'thecarrier into position to be inserted into the barrel, inserting-said-cartridgein barrel l where itis -locateduntiil the lfiring pinisldepressed,as'i n the position shownin' Fig, 2,

then'extractingt from 'the barrelfand eject- .until-the cartridge is seated in thebarrel and i'ngit from'the'side.. openingin the receiver. I havel'thus far described no means by whichthe hammer willbe automatically held back' then antomatically released,.th triggerbefing constantly held back.

b is a' separate notch inftlm-hanimerd e is an'automatic sear which performs the' function; of a separate automatic '.trigger., i This'searfe is'located'inside the `f rameand is 1 hungon a suitable pivot f.

h is -a springoperatmg 1n conjunction with the sear to-canse oneend'of said scar to normally press against the peri-ph'eryof t e harnnrer d, as shown inf-Fig, 3,; so 'that w en the r hammeris pushedbac'k tojfull cock the end of s'ear elwill engagethe notch b and thereby tripped.: The tripping.'or:th e'Sear-is 'occavs'ioned byt-hejtilting of the bolt At' the instant .the -mechanism is locked the rear end of the locking boltstrikesI against the disenf gaged. end of theau'toniatic sear, depressing "it, and lifting the opposite end,-thereby re- Ileasin'gthe hammerwhch-o'an then'spring forward and impart to th'e firing pin a blow of vthe" same force, as though'released by .the regular trigger-z'. The spring Z, bypreerence,`.-is provided with'another projection fn,

in addi'tionj'tofthe projection a. y

` A'Although the proj action a in ay serve to hold the-cartridgeinthe magazine untilftheproper time to: release i t,. it is preferable to have the projection 'rrperform this fiinction, while the withthe plate I, to afford a xheans f ordepressing said springZ for the purpose described.

Fig. 9 shows .asmall roundedout groovej in the p latcl at a point nearits forward lower .projection a'isrelied upon, in-.conjunction corner and adjacent' to the projection a on the spring Z. The purpose of thisgroovej is to permit the projection a to spring up therein,

that the spring Z will be depressed only a -mer in the ordinary manner by Ithetrilgagger z', licient time to allow one cartridge, to parthe said trigger may be held back during the' ally slip out of the magazine as above de;- entire operation of the automatic parts and 7o ribed. Y i A Y the scar c will operate as an automatictrigge'r Z-is arecess in the lower'side of 'thelocking `to release the hammer after the cartridge `is alt D to accommodate the projection m' on fnIy'seated and the mechanism locked. j e carrier block W when the mechanism is Having Athus described my invention, what l the position shown in Fig. 2,therebyfacili 'I claim, and desire' to secure lay-Letters Pat- 75 ting'the compact assembling .of the parts. i"ent,'is- The operation of the re-arm is 'as fellows: 1. In a magazine I irearm, a tilting'loclring- Je magazine is charged with .amnunition- .bolt D having a horn H- projecting from its re will assume there is one cartridge in the upper .rear endand having projecting from ieech of the barrel ready to be discharged. itsrforward end a depending plate provided 8o 1e breech-block'- is in the forward. position. with an inclined slotJ, and operated by a pin )lding the said cartrid'gein place. The rear projecting fromthe horizontal movable conthe locking bolt, which is tilted, rests necting rod, substantially as described. ainst the rear inner side ofthe frame Aand. 2. AIn a magazine firearm, the combination ereby .provides a 4reinforcement for the of a reciprocating handle'and connecting-rod 85j leechJolock against the recoil when the car. attached thereto vwith a- 1ockingholt hung in idge is' discharged, The hammer .is at fullthe breech-block, said locking-bolt being pro'- ckand the firing pin is in'the retracted vided with a projectingarm'adapted to move 1 sition so that thehorn l-lof'the locking bolt in a groove Sin the side of the .frame adja j sts againstt'h-e under side of the firing-pin.A cent thereto, said grooves being widened to ,zo ne locking-bolt'eannot thereforefbe tilted' -ward its forward end to permit the locking itil" theiring-'pin is'advanced.' The mech- -bolt to be tilted, substantially as'described.

iism is therefore locked' and the-operator 23g-Ina magazine firearm-thc'reciprocating ay pull against the handleN inelevating handle,.the connecting-rod, the locking-bolt ld pressing the stock 'of the grin againstthe adapted to be tilted as'descried, said lock- 9 5 `colder 'without-dangerof'unseating the'- ynhg-bolt having a projection R'adapted to ,rtrid'ge to be discharged.'4 Thehammer, `slide in a groove in the frameyand having a. hen released, springs forward against'th'e stnd K projecting from the side 'of th e de# ing-pin, discharging the cartridge and un` pending plate l, adjacent to and adapted to cking the mechanism, as shown' inI Fig. 2.. slide in a groove in the adjacent lside of a roo v pulling back` the' handle N'thestnd Q, carrier-'blockwhich is hinged nearA its rear erating in the inclined slot J tilts the lockend to the frame, for the purpose of raising g bolt. D and the carrier W softhat theforandlowering. the same, 'substantially as and rrd end of'said carrier stands directly in. for'the purpose specified.;-` ig u e rearof the cartridge in the magazine. f .At 4. In-a magazinertirear'm, the reciprocating 'm5 is point the spring -Z is depressed bythe handle, the connectingrod,with'thejlockingatel on the locking bolt and a cartridgeV bolt hung' in the breech-block, said lockingom the magazine slips back against the forbolt having-a 'plate' I'dependng Afrom -its forrrd edge of the plate I. B y continuing toward end having a stud K projecting ther'eill back the handle N, the breech-block and from adapted to -slide 'ina groove Y in the 'no :king-bolt retreat into the position shown carrierw, said grooveYbeingcurved sharply Fig. 3. a Onthis'backward movement the upward toward-the rear end of the carrier, scharged cartridge shellis extracted from substantially as andfor the purpose specied.

e breech 0f the barrel and ejected, bythe .5. In a magazinel firearm, axreciprocating echanism described, through the's-ide openhandle and con meeting-rod adaptedA to tilt the x15' g inthe frame A, and the'carrier is dropped lockingfbolt'which is provided with a horn as permit the cartridgeffr'om the magazine to described, the forward and rear'edges of which' expelled into the'frame'and above the carare inclined forward as shownin combina-'- ar. The backward movement of the breech- 4tion with a firingp-in actuated by a-re'tract' Dck pushes the hammer back to fnllcock, .ing spring G and .having a'groove L .the for 12o shown. The handle is then advancedand ward and rear sides of which are inclined as e carrier -quickly rises'an'd throws the new, shown, the forward incline facilitating .the rtridge n p in front of the'. breech-block, retractionof the firing pin. byaction-of the lich pushes the said cartridge into the barhorn, the forward incline being for the purr l as it advances.. When the cartridge isv pose of advancing said iring-pinslightly x25 lly seated within the breech of the barrel, ahead, so'that whenthe horn .has passed the e locking-bolt' is tilted in the manner indilower edge of the firing pin, the spring' G will ted heretofore, tripping the automatic sear cause the said firing pin to snap back over d locking themechanism in the position. the top of the horn H, thereby locking the st described.4 See Fig. 1. By means of-the locking-bolt, all. substantiallyas and for the 13o ar e it will be seen that the hammer is held purposes specified.' v

.ck at each operation' of the fire-arm until 6. 4In amagazine irearm,`a reciprocatingv e cartridge is firmly seated. handle and connecting-rod, adapted to tilt If desirable, instead of releasing theham-the locking-bolt hung in the breech-block,

said lockingbolt being provided with a'liorn r 5V ward action of the dependingplate I provided with the groove j, substantially as described. 8. In a magazine iire arm, a reciprocating handle and connecting rod attached thereto adapted to tilt the locking bolt hung in the breech-block, said locking bolt having toward its rear end an upwardly projecting-horn, in combination with 'a firing-pin locking said locking bolt when in the retracted positionV to prevent its being tiltedand releasing said locking bolt .when in the forward position, substantially as described,

9. In a magazine iire arm, a device for releasing the cartridges in the magazine consisting of a spring Z secured to the frame of thegun the forward end of said spring being loose. and adapted to normally stand slightly into the path of the cartridge to be expelled.

from the magazine with the tilting locking bolt D' provided with' the depending plate I l0. In amagazine firearm, the reciprocating parts, in combination with a spring pressed supplemental sear hung in the frame 45, and engaging in asup'plemental notch in the adapted to depress said spring Z on its'down-v periphery of the hammer, and the locking n bolt, said locking bolt tripping said supple? mental searat the final locking point and after the breech is fully closed substantially as described.

11.V In a magazine fire arm, the reciprocating breech-block B, carrying a' locking bolt D loosely mounted in fa recess` in the lower side of said breechbloc k, in combination with a depending plate I, secured to the forward end of said locking bolt said plate being provided with an inclined slot .land a projection R moving in a longitudinal groove S in the frame A and with a 'stud-projection K on saidr depending plate adapted to move in agroove in the side of the carrier-block` l/V for the purpose of intermittently raising and lowering said carrier-,.blocli, substantially as described. i

1,2. In a magazine firearm, the longitudinallyreciprocating breech block having a locking gbolt loosely hung therein upon a pivot ot' reduced diameter, whereby thesaid locking bolthas limited longitudinal movel ment, a cam 'abutment on the breech block engaged by the' forward end of the locking bolt, the depending plate oi the-locking boltv having the inclined slot J, the opera-ting bar P, the studQ'on said bar working in said inclined slot J', whereby thelocking bolt is tilted into and out of theV locking position, and the breech-block is crowded home by the cam engagement of its forward end.

' 13. In a magazine lire arm, a reciprocating breecheblockcarrying a locking bolt loosely monntednpona pivot E of less diameter than the diameter of the perfo-ration in the locking bolt through which it extends, the bearing surface at one end of the locking bolt being out on a curve eccentric to the pivotal 4,center E, to edect a cam action as thelocking bolt is` tilted, substantially 'as described.

LEWIS L. HEPBURN.

-Witnesses:

JNO. MARLIN, M. E. WARD.

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