US1830213A - Selective trigger-mechanism for firearms - Google Patents

Description

Nov.` 3, 1931. sTn-:NNQN

SELECTIVE TRIGGER MECHANISM FOR FIREARMS Nov. 3,1931. L. sTlr-:NNON

SELECTIVE TRIGGER MECHANISM FOR FIREARMS Filed Nov. 22, 1930 4 Sheets-Sheet 2 Nov. 3, 1931. l.. s'rlENNoN SELECTIVE TRIGGER MECHANISM FOR FIREARMS Filed Nov. 22. 1950 4 Sheets-Sheet 3 Nov. 3,1931. L. STIENNON 1,830,213

I SELECTIVE TRIGGER MECHANISM FOR FIREARMS Filed Nov. 22, 1930 4 Sheets-Sheet 4 452W #fyi 57 Patented Nov. 3, 1931 :time srie-mvoiv, on mi; 'I Ferme ARMS .DELAWARE -This invention rel'atesto-an 'mproved selective trigger-mechanism primarily designed for double-barrel firearms, bntnot s o limited, andronstitutes an vimprovement upon the mechanism shown and described in my copendiingappli'cation, Serial Noe, led aprirlo', 1929.

y "llie'wmaifn object` of my present invention is toaprovider'a trigger-mechanism in wl'iich onedttrigger controls more'than one' barrel, andyis characterized by vfewn'ess of parts; conpactne'ss of organization', l'certaii'ityof operation, durability in use and convenience ofoperatio'n.

. 'Another object-of my invent-ionY is to pro-l vide. af trigger-mechanismfor double-barrel firearms in which the movement of a seat-.-v a'ctuator :from itsi retired into its scar-actuating-position isiinsured by means o'f'av recoil#` operatedfdevice.

- i urther objectsis to providea selective p .-trigger I.mechanism-v in which thel triggel gerepullffnfiringfach ofitwo-barrels will be substantially uniform' regardless of. the par. ti'cul'artri-gger. chosen for operation or offthe seqien-ce in which the two triggers are oper ate .'Withth-e above and other. objects in view as will appear from'. the following, my invention coi'isistsin-v aselectiveI trigger-mechas nismrfor firearms havingy certair` vfeatures of constructiony and combinations and arrange-l ments of partsas willbe:herein-afterl described and. particularly recited in' the claimsf,

: Inithe'accompanying drawings i.

l Fig.= l: is' azbroken-v'iew partlyzin' side elevation a'ndupartly in verticallongitudinal section ofthe frame-'portion f.- al double-'barrel shotglinig embodying' my invention',r together with the partsass'ociated therewithiand show'-y ing thef-.parts-:in thel positions-.due to lthem" when both lthe `:firi'ng-mecha-nisms are lin vtheir cocked psition'sgl f "1 Figi@ isaview correspondingto'ig lpbut showiiigfathe f yparts' in; the positions due to' thenry after' the forward or riightlhand trigger hasvbeienpulleld and the 'rightihand firing-- mechanis fhasbeenreleased,` lont efor'e'` the rearwar- Y 'naftupm the;fighanaaatrigger hasbeemrelaxed ;A v l ooiiivncrlcn'nessrsnoa To tvincrinsrnit ooilenfvpor imivjieven, conivnlcricnr, n coaronerioiv on getactivejriiretmanncnnivisivi For. riesame i p'liiiafi' "aree''faireirner 2a 1930. sereine-.491370.

Fig. 3 is a corresponding; view, but showin the parts in the positions due to them after the' initial rearward draft uiion the righte hand trigger has been rela-ned, and with the parts in position in readiness to release the left-hand firingunechanisni g Fig. e is atransvers'e sectional view taken on the line lef-:4. of Fig. l;

Fig'. 5' 'is a broken View in horizonta tion taken on the line 5 5 of Fig. l.;

Fig. 6 is a perspective 'view of the searactuator detached;

Fig. 7 'is val similar view of the 1.ight-hand trigger detached; and` l sec- F'g 8 is a corresponding` view of the left'- hand `trigger detached.

In ythe main figures of the accompanying drawings-I have illustrated the firing-mecha# nisms and associated parts of a double-barrel break-clownshotgun', though it will-be understoodV that my invention is applicable to va.- rious types-of multipl'eebarrel firearms.

f In theiembodiment of my invention vherein chosen for illustration, employ a frame 20 'formed at--itsuppei1 f rear end with ay rearwardly-'extending tang 21 and having secured to itsl under face a trigger-plate 22 between the upper face of the rear end of 'which latter and the' under face of the tang 2l, is securedJ the forward end of a butt-stock 23. A relatively-long` screw 24; extends upwardly beween the rear end ofthe trigger-plate 22 aforesaidand the rear end ofthe tang 2l of thef-rame 207 and serves to anchor the buttstoclr'- in place in conjunction with a screw 25 extending downwardly through lthe foiward end' of the tang 2l and into the upper endof a so-'called lump 26, formed integral with and `npstanding from the trigger-nate 4 22alreadyreferred' to. i -The buttstocl 23-above referred tov is cut away tov clear the mechanisinabout to be describedaiidisprovided'near forward end with bushing 27 positioned so to bearat A its lowerv end againstA the upper face ofthe lump'QG and at its upper end against the undeiiside=of4 the tang' 2l and providing a passageway for the screw already referred to. l Pivtall-fy mounted within the fraine 2O are its L pair of oorrespondingrightyend left-hand y `l1a1'n1ners28 an'di29 'respectively providedat their'iiorward upper ends with firing-pins 30 fandyfjll,y yand in ytheir lower rear walls with Thesaid hammers senr-notches 32 and 33.

y 28 and 29 are also formedy at their lower ends,

, 34,y mounted in the ktrame 20, and are respectively 'formed Witlrnotches 35 and SGfrecei-vingpins 37 `and 38 of hammer-operating links y39 and 40, in the usual manner ofli-rearm con-` struction, it bemgunderstood that the links 39 and 40 urged 'forwardly by their springsy (not shown) f enerta constant eort upon f ytheirrespective hammers 28 and`29 to swing y y the upper ends or the same torwardinto their iirin positions.

lliesear-no u 32 of the right-,hand hamrnier-2S countsr with the forward end kof a horizontellv-arranoed ri-Uht-hand sear-41 f fr wardly-proj mounted aboutinidway oit' its length for oscillationfupon atransverse pin 42 1n the frame 20.

The rear end ol the riO'ht-hand sear 41: 'ust' above referred to, is providedwith an in- 'tnig lingery 43 udaptedto be lifted by what l shall tor convenience ory description.J designate as an upwardly-facing flirst-stage iirlng-ledge44, formed upon the plate-like body-portion 45 of a right-hand' ytir-ligger 46.

1 erred to, is mounted in a right-hand slot 47 complementing a similar left-hand slot487 both of which are vertical-longitudinal in direction and extend 'through the triggerplate 22 upward partway into the rear face of the lump 26. A pivot-pin 49 is mounted in and extends transversely through the said lump 26 and through a perforation 50 extend- .ing through the body-portion 45 of the sai-d right-hand trigger near the forwardupper edge thereof. i 1

The right-hand trigger 46 is providedwith a depending curved finger-piece 5l of usual 'form and is also formed, just to the rear and slightly below the first-stage firing-ledge 44 thereof, with an upwardly-facing secondstage7 firing-ledge 52 and also with a rearwardly-projecting stop-nose 53 engaging the upper tace oi` the trigger-plate 22. just to the rear of the slot 47 therein for limiting the forward swinging movement of the finger-piece Complementing the right-hand trigger 46 and located in the left-hand slot v48 ingthe trigger-plate 22 is a left-handv trigger 54 slightly longer than the right-hand vtrigger 46 and provided with a curved finger-piece 55 located to the rear ot the linger-piece 51 ot the said right-hand trigger. 4, The left-hand trigger, above referred t0,

The right-hand trigger 46, just above re-y already referredgto. The trigger 54 under discussion is also provided with a rearwardly-extending stop-nose 58 engagingthe upper face ot' the trigger-plate 2,2, just to the reer with en upwardly-'facing second-stage firingvledge 59.*,and ,a similarly-facingfirst-stage liring-ledge'60.

The first-stage firing-ledge '60' ofthe rlefti-y handftriggenj ust'above referred to, is adaptedto engage the under-face of` a Sear-linger 6l inwardly osettin'gr from elett-hand: Sear 62roorrespondingto the right-hand sear 4l,

upon vthe transverse pivot-pin 42 already re'- ferred to."` 'The iorwardfendof the Aleft-hand heel 33a thereof as will hereinafter appear.

' The right-handetrigger'f46fand-thevleft 90 f hand trigger 54 are so formed that the fingersuicient'spac'e between them 'for the ready insertion ot the trigger linger of the'user of' theiarni.

is alsoy provided with a plate-like body-pon tion 56 formed near yits orward'upp'er end ywith a' 'perforationy 57 yby'mea'ns 'of which it is pivotally mounted upon the pivot-pin 49 -searf62 coacts with the sear-notchf of the left-hand hammer 29 andlwith the clam-like i piece 5,5 rofthelatter is located substantially in line/with and directly baclr 'of the finger# piece 5l 'of the 'said right-hand trigger, with The ylump r2ii'oflthe:trigger-plate y22 is yformed rwith f' a "central longitudinal passage G3 intersecting the slots 4!" yand 48 therein and extending-:from 'fronti toy rear rtherethrough for theaccommodation of a platelike Sear-actuator 64 which is provided about midway of its length with a transverse clear-` ance-slot 65, through 4which the pivot-pin 49 passes, as clearly :shown in Fig. 5 ofthe drawings.

By nieanslofV the slot 65 and the 1pivot-pin 49, the Sear-actuator 64-'just above referred to, is mounted in" the lump. 263 with' capacity for longitudinal reciprocation, rocking movenient,l anda vlimited bodily vertical'imovement, and is .widenedout near its forward end where itI isfiprovided iniits'under-face with a downwardlyand rearwardly-inclined spring-pocket rreceiving the upperv end of a helical spring? encirclingja plunger' 68. The lower end of the seid plunger is seated in a conical yseat y69 in the trigger-plate 22, just ,forward vofuthe slots -47 and4 48 therein; The said/spring67 exerts aconstant effort to movethe sear-.actuator 64'bodily lforward and to rock the nforward end thereof upward. The upper rear :end :of the Sear-:actuator 64 is formed lWith av stop-projection 170;,andat its lowerrear end lwith oppositely-extending laterally-oisetting; Jrightand left-hand searactuating'lugs' 751 .and '72respectively.l r i i 'plhe right-hand sear-actuatingklug I7l o the Sear-actuator 64 overlies the second-stage ill firing-.ledge f 52 ofathe righthand trigger and `isradapted.to move .beneathrthe vlinger 43 of the; fright-hand searAl for the same under'tl'ie :urge of the lefthand-trigger 54, to discharge the f right-hand barrel (not showlffof -the arm, as willlhereinaftenappearaei@ 1 1 i w f fvThe left-hand scar-actuating 1ug72 of the soar-actuator 64 coinpl'ementsfthe' right-hand lug 7l thereof Iand projects `from the oppo- Site-faccrthereof inpositionzto overlie the Second-.Stage =firingledge v:'59-.of the 'left-'hand trigger-x54, and is adapted! tcm-'move beneath the ingerffl ofthe left-hand-sea'r62 for lifting the same under the urge -ofthe righthand: trigger. .46 to discharge :the left-hand barrelgitnot shown) as will hereinafter .appelffw* The upperedgeofthe Sear-actuator 64 near- :.iit-s., forlward end, i is provided` with a forwardly-facing slightly-inclined latchingshoulder Z5-.adapted toy coact with a:- latchingl bar femounted vina transverse rectangular groove-:77' ini-the front face of` the-lump 26 in ,position to. extend across the longitudinal passa-ge: 63 in' the said lump, through which the scar-actuator 64 extender z The-said latching-fbali' is'secured in place byswaging the metalfofvtheslot' over the'edge of its opposite ends, though if desi-redit may be made integral with the` said 'lump `26.

The rear-under face 78 ofthe scar-actuator flnisioffparcuate form andisadapted to co+ act: .witha pivotalinertia-weight -7 9 as-will hereinafter appear, which is mounted upo-n a transverselpin 8O in the trigger-plate 22 and isrnormally held inaitsrearward or retired position by .a Iilunger:v 81 engagingthe upper'.surfacelof the said trigger-plate adjacent the pivot-pin and reciprocating in an inclined bore 82 in the said'inertia-weight, and urged outward by a helical spring 83 also. looa'tedin'the said bore 82 and encircling thefreduced upper endv of thesaid plunger 81. -tffllhel stop-projection 7 0 ofthe Sear-actuator 64:-.is;adapted to coact on occasion with the underiface4 of a reciprocating safety-rod 84 and'v also -to ,enter a vertical longitudinal clearance-groove 85 formed inf the under-face thereof. The forward portion of the safetyrod Sais. of cylindrical form and reciprocates in a longitudinal guide-passage 86 forni-ed in the lump 26.. `The extremewforward end 8:ZIo-futhe said* safety-rod 84 is-reduced in diameter and externally threaded to fit into a; threaded bore 88, in a removable exten'- sionepiece-SQ.,

The rearend of the. safety-rod 84 is pivotallysecured, by' means ofxa pin 90` to a substantially vertical safety-lever 91 mountedfor-'oscillation forward? and back upon a pin: .92.v extending transversely through the trigger-plate 22 near the rear end thereof.

i Therearend of thei-nertia-weifght 7 9 is formed with a clearance-'notch 98 for the either one of two detent-notchesQS and 99 to n .yieldinglyz-retain the Said slide in either on of its two.- positions.

The forward end of the removable en tension-piece 89 of the safety-rod 8.4; is adapted .to be engaged by the rear face of a locking-bolt 100 in the usual manner of breakdown iirearlns. rlhe operation and construction of `loclrin'g-niechanisrns is so woll understood in lthe art that it is believed that no further description is required other than to say that the said locking-bolt 100 is retracted bya finger 101 depending' from a head 162 mountedfupon the lower end of the shank 103 of ia laterally-swinging top-lever 10a, which effects the unlocking of the piece for the breakdown action, in the usual manner of breakdown firearms.

The linger- pieces 51 and 55 of the respective rightand left-hand triggers 46 and 5e are guarded in the usual manner by a triggerbow 105 mounted upon the under-face of the trigger-plate 22, as clearly shovv'n in. Figs'. 1,2 and 3 inclusive.

Coming now to the operation of iny iniproved trigger-inechanism, iet it be supposed that the gun is fully cocked so that the parts occupy the positions in which they are shown in Figs. 1, l and 5 of the drawings.

By-reference to the .figures just above referred to, it will be seen that both hammers are in their cocked positions and that the Sear-actuator is held in its rearniost position against the forward urge of the spring A67, by the engagement of its latchi11g-shoulder 75l with the rear face of the bitching-bar 7 6 so that the scar-actuating lugs 71 and 72 are t0 the rear of the respective Sear- fingers 48 and 61. In other words` the senr-actuator 64 is in its retired or inoperative positioii and the bottom of the slot 65 rests against the under-side of the pin. L19.

'It lwill also be noted by reference to the figures referred to that the finger i3 of the right-hand scar' 41 overlies the first-stage firing-ledge 44 of the right-hand trigger 46. aud

thelinger' 61 of the left-hand scar 62 overlies theiirst-stage firing-ledge 60 of the left-hand trigger 54.

lVith the parts in their fully-cocked positions, as above described, let it be supposed. that the user of the arni desires to iii-e the right-hand barrel of the gun. lfirst. vWith the above object in View, the user of the arm will exert a rearward draft upon the liu Ger-piece 51 orf the right-hand trigger i6 and cause tbe lili latter to swing; upon the pivot-pin 49 to bring its Erst-stage firing-ledge del into Voperative engagement with the'finger i3 ofthe righthand sear 4l, and thus swing the latter so as to disengage its forward end from the 'scar notch 32 in the rightband hammer 28. The right-hand han'imer will thus be permitted `to swingr forward in the usual manner of lirearms to tire the cartridge in the right-hand barrel (not shown).

In swinging forward to lire a cartridge, as above described, the right-handhammer 28 will act through its cam-like heel 32a to depress the forward end of the right-handelaar Lll and thus lift the linger 48 thereof into' Ia clearance position, as shown in Figs. 2 and The swinging` movement of the rightehand trigger as above described, will rst disengag'e the forward end of the right-handsear ll from the Sear-notch 32 of the right-hand hammer 28 so as to permit theflatter to fire the right-hand barrel, and will alsoact through its second-stage firing-ledge 52 to rock the searwactuator 64 about the pin 49ans a tulcrum-point, to disengage the latchin`gshoulder 75 thereo'l 'from the latchingbar 7 6 subseonently to the release or' thehammer 28 with the effect oit pe'rmitting` the said searactuator to move bodily forward underthe urge of the spring;` 67 until the forward face ot its lett-hand li.d Z2 engages with the rear iface of the linger Gl of the left-hand sear62. The parts will hive now assumed the posi'- tions in which they are shown in Fig'. 2,' in which the rearward draft upon the right.- hand trigger has not' es yet been relaxed bv user of the arm. ""f l'Vhen the right-hand barrel is tired, as above described, tne recoil of the irearm will cause the pivotal inertia-weight 7 9 to swing :toi-wa rd into the position in which it is shown in l? n'. 2, in which position its periphery is interposed beneath the arcuate rear surface 'T8 ol the scar-actuator fl, thus temporarily blofflnngl the downward movement of the rear end thereof. -`When the counter-recoil takes place, th e said inertiaeweight will b e returned, bv the combined action ot its spring` 83 and the conirteru'ecoilt to the position indicated in l and 53.

'lhe action oi? the inertiasweight just above described, serves this time to preventthe downward movement of the rear end of: the seaieactuator (il and hence its `further orward movement into position to bring its lug "2 beneath the linger @lof the lett-hand Sear 52 ttor actuating the .same as an incident'to the recoil of the arm. if the foregoing it will be seen that the iorwa rd movement of. the .inertia-weight forestalls an involuntarv second movement of the right-hand trigger and the consequent unintentional iiri'ng oic the second barrel as a result of the counterrecoil. Y

The right-hand barrel yhaving been tired,

as above described; andtherecoilandicounter recoil having vexpended 'their .forces-,tithe user deliverably relaxes-the rearward .id-raft? u on the lingenpieceflof the rightfhandltrigger 46 to permit theisaid;lingerepieceitofswing forward' under-` the urge f of ithe 'Sear-actuator 64 from the position in which it is shownrby full lines Aim E ig 2 to thecposition'i which it is shown by broken lines'in lthe samezfigure; This Iforward 'i or? returnl movementl of the right-hand trigger permits thenl rear'vend of the searfactuatorf-G'f to' swing` downwardlsuficiently toi permit its left-handeSear-'actuat-i ing' lug '72 to! ride underithe fingerilf of tHe lefthandl sear;62'.= 'f l 1- 5i The partswillnowoccu ythe'plositions .in which theyl arel shown lin 3; in` readiness to release the leftdland hammer for liring the left-hand barrel l(not rshown) ,nrwhi'chflni'ay now. be eiiecteduby a pull upon: either-trigger.

.It the: right-hand trigger .which l has-just been? opera-ted,v isfchosen` to Aalsol'elieetlitlie liz-ing otthe-let-hand barrel,- a'second-rear ward draft thereupon will cause' the seconde stage iringfledge 52 thereof to.4 engagey :the under-racel of thel riglit-'hand lugfflof the soar-actuator, `with the el'ect of flirting` the rearA end of the latter-arid' causingfthe fu'pper face or its left-,hand lug` 72 to engage and lift the linger 6l of theflefthandfsarf62,` which' latter will beiswr'un'g` so-.asrto disengage its orwardend from the-ser-'notc'h-SSS ini-"the left-hand hammer `29 so that.' the fsalne will swing .forward 4and lire'tlie left-harrdibarrel (not shown The? inertia-weight) f will operate in thel same manner under thetaction or the reco-il and A`counter-.recoil of tlie" rearm as'previously-describedn lf theuser`of the arm shouldl'havepre ferred toiire'wthey leiftlia-nd barrel means of the letti-hand: trigger instead: fofby means of the right-hand trigger, as descrihed;assum= ingthe partsfto bein the positionsfshown `in Fig. 3, a rearward draft uponthe'leftihand trigger Wouldcausethe rst-stage'l iriigledge 60 of the said left-hand triggentog act directly upon the finger 6l oi 'the-'lefthand scar G2 toy rock the latter and thusrelease theletthand hammer 29. i I l.

As has been hereinpointed out when starting` with the gunl fully cocked,` thei firing'` of the first barrel, .whether right" or leftyoccurs eilore the appropriate 'trigger f, hasv fbeeli pulled suiiiciently for effecting the dis'engage# ment of the latchiiigfshoulder 7 5 of thelsearactuator F641; from. thev .latching-ban ifso as to permit the sear-actuator to movefonward tov'vard its searaactuating 4positionew N ow it maybe khere pointedoutthat occas sionallyazmarksman havingV averyfsloW .trigger pu'lll- :will sometimes; teile :toi I'con-l tinue to pull 'upon Athe chosen Atrigger-'suilicientl7 far? to llunlatch the` seat-actuatonj ow# ing? largelyto the' effect 'of the-recoilI intending to move the trigger away from his' linger;

Ordinarily. when this i condition .occurs and the searea'c'tuator 'has Snot: been funlatche'd', a".

second intentional pull upon' the same trigger willl fail to; dischargetheother-barrel "of the arm, .iduetozthe .fact that the .scar-actuator has fa'ledeto move into'l'iitsi'7searactuating' position., l i Y i i frllofguardf` -a'gainst 'the nndesirable effects of,vr 'an' l incomplete trigger-pull, -las' outlined above,:the. inertial-weight 79iand the r'ear'end .offthesear-actuator 64 arey so: arranged'and proportioned-that when the firstbarrel is red',: the resulting recoil-will automatically cause the rounded upperfrot corner of the t saidfinertia-weight -to strikethefrounded rear end .off thersear-actuator tol cam:l the latter i bolt :100 Fand break the -piece', thus effecting;

upwardisuiiiciently to insure the'disengagementtofthe latching-shoulder 7 5 from the latchin'gsbar 76, in the event-thatrthe user of thev'arm has failed to accomplish this unlatchingby: a fullfand complete pull upon the trigger.-

VVhenthe user wishes :to reloadA the arm,

this maybe-accomplishedby swinging the top-lever 104: laterally to retract the locking-I thecocking of'both of the hammersy 28' and 29, all 1in the well-known Imanner of vbreakdown ir'earms. f. l

' Whenthe locking-bolt l10U-is retracted, as just above described, it will engage the front face of the extension-pieceV 89. of the safety.- rodz-S'and force the latter rearward with the eifect of4 also sliding theV safety-slide v95` rearward and withfthe further' edectof'movf ing, the clearance-slot 85in-the safety-rod 841 out Vof registration with the stop-projection` 70 of the scar-actuator 64:1 so that neither trigger can be swung for firing the gun until thesafety-rod has againjbeen manually restored to the position in which it is shown in the drawings, 4by means of its slide 95.

From the foregoing,-itwillbe seen that the safety-mechanism of the gun isf automatically thrown into'a safety position as an incident- `the elearancesslot85,` into registration with the .stopyprojeotion of `the 4Sear-actuator,

and the safetyrmeehanism will remain in this inoperative .position u ntil intentionally'l -moved therefrom.

In the foregoing description of operation,

I have described myimproved trigger-mechanism' as employedto release thehammers. 28" and 29 in the order fright-left, but itwill beseen thatifrthe user of the arm choosesto..reverse the firing order, namely, to leftright, ,he has butto irstoperatethe lefthand trigger 54 to iirethe left-hand barrel and subsequently he may fire the remaining barrel by means of either trigger.

I wish to call particular attention to the fact that in the construction shown, the trig ger pull required for firing either barrel is substantiallyY uniform. l-this marked refinement and advantage is largely due tothe fact that the 'cam-like heels 32 and 33 of the respective hammers serve to hold the complementary sear with vwhich each cooperates in such position as not to impose additional strain upon eitherv trigger when the second barrel isiired.

It will be understood by those skilled in the art that my invention may assume varied physical forms without departing from my inventive concept and I, therefore, do not limit myself to the specific embodiment herein chosen for illustration, but only as indicated in the appended claims.

I claim:

1. In a selective double-trigger mechanism for double-barrel firearms, the combination with al pair of firing-mechanisms including the respective sears thereof; of a shiftable sear-actuator adapted to directly operatethe said sears and having a retired and a searactuating position;l a pair of triggers each adapted to directly -actuat-e its complemen- `Jtary sear independently of the said scar-actuator for releasing one iiring-mechanism and'each adapted to move the said seanactuator te cause the same to release the other of the said firing-mechanisms through the intermediary of the sear thereof; springmeans normally urging thesaid sear-actuator into position to'directly actuate one of said sears; and latching-means for releasably holding the said scar-actuator in its retired position and releasabl-e by a movement of the said scar-actuator itself to permit the same to move into its Sear-actuating position.

2. In a selective double-trigger mechanism for double-barrel firearms, the combination with a pair of firing-mechanisms including the respective sears thereof; of a scar-actu ator adapted to directly operate the said sears and having a retired and a scar-actuating position; a pair of triggers each adapted to'directly actuate its complementary sear in dependently of the said sear-actrmter for rei leasing one firing-mechanism and each adapted to rock the said scar-actuator te cause the same to release the'other of the said tiringmechanisms by the direct engagement of the said scar-actuator with the sear thereof; spring-means normally urgingl the said searactuator into its scar-actuating position; and

latching-means for releasably holding the i.

said Sear-actuator in its retired position and releasable by a rocking movement of the said Sear-actuator itself to permit the same to move into its Sear-actuating position.

3. In a selective double-trigger mechanism for double-barrel firearms, the combina-tion' with 'a pair of ring-mechanisris includingl ivo sear. thereof; of a shiftable :ear-acl ttor i'xormally pivoted between its ones so "o have tivo oppositely-extending arms ain ted to directly operate the said sears and ln O* a retired and a scar-actuan ingl position; l air of triggers each adapted to directly actuate its complementary sear 1ndependently of trie said Sear-actuator for re leasing one liring-mechanism and each adapted te move the said Sear-actuator to canse the saine to release the other of the saidvfiringinechanis is thronfrh the intermediary of the *l Jreef; spring/means normally urging tuator into its Sear-actuating position; a i' ning-abutment mounted in the Q;un-strufr/tn e; and a colnplementa'ry latching-abutment carried by the arm or the said th e s Sear-actuator remote from that arm thereofl which is enen-ged by the said triggers,.and adapted for engagement with the lirst-mentioned latching-abntment for holding the .said Sear-actuator in its retired position and disengageable by a movement of the said searjv actuator itself to permit the same to moveA into its sear-actuating position.V

i. ln a selective double-trigger mechanismv for donble-barrel iirearms, thecombination with a pair of firing-mechanisms inclndlng the respective sears Jthereof; of a Vsaar-actuator normally pivoted betweeniits ends so as. to have two oppositely-extending.arms andv dapted to directly operate the said sears and; having,` a retired and a sear-actuatln'g position; a pair of triggers each adapted to d1.

rectly actuate its complementary seal:A independently .Y the said Sear-actuator for. releasing one .tiring-mechanism and each adapted to rock the said s-ear-actuator to cause the same to release the other of the said firingmcchanisms through the intermediary of the sear thereof; spring-means normally urging the said scar-actuator into its sear actnatlng position; ailatching'nbutnient mounted 1n the gunestructure; and a complementary latch. ing-abutnient carried by the arm of the said scar-actuator remote from that arm thereof 'which engaged by the said triggers, and

adapted for engagement with the first-men-j tioned latcl'iing-abutment for holding the sai-d senr-actuator in its retired position and rlisenG rea'ole by a rocking;` movement of the said seanactuat'or itself toA permit .the same to moveinto its sear-a`ctuating position.

In a selective double-trigger mechanism for double-barrel firearms, the combinationr of fir-in ive se5 lv mounted. between the ends upon a 'vot with capacitf for both rockn'ocating movement and adaptoperate the said sears and having a reiired and a Sear#actuatingI position; a pair of triggers each adapted to directly with x-mechanisms including thereof; of a sear-actua-- 6. In a selective double-trigger mechanism` for double-barrel firearms, the combination l With a pair of firing-mechanisms including the respectivesears thereof; of a reciprocating and rocking sear-actuator normally piv-: ote-d between its-ends and adapted to directly operatethe said sears and having a retired and a scar-actuating position; a pairof trig-` gers respectively located Tauponf the opposite sides of the said searacti1ator-and each adapted todirectly actuate its complementary sear independently of the said `sea-r4` actuator `for releasing one firing-mechanism and veach adapted to moire thesaid searfv actuator to cause the same to release the other, of the said :firing-mechanisms `by the ydirect enfggagement of the said scar-actuatorwith` the sear thereof; spring-means normallyurg-' ing' the saidl scar-actuator into its searactuat=f ing position and? latching-means for 'release ably holding thesaid Sear-actuator in itsre# tired' position and Areleasalole by a rocking movement of the'said Sear-actuator itself to permit the same tomoveinto its Sear-actuating position. Y y 1 7. In a selective double-trigger mechanismfor doublebarrelfirearms; the combination with a pair ofliring-mechanisms includingl the respective sears-thereof; of a reciprocat ing and rocking Sear-actuator normally pivoted between itsends so as to lhave t-Wooppo'- sitely-extending arms and adapted to direct# ly operate the said sears and having a retiredf and a scar-actuating position; a pair of trig` gers respectively located 'upon the'opposite sides of the said Sear-actuator and each adapted to directly actuate its complementary sear independently of the said scar# actuator ',for releasing one flring-mechanis'ni" and'each adaptedfto` rock the said se`ar-actua`7 torto cause vtl1e` ,same to release'the othel'rjof the said termediary' of the sear thereof; .springlm'ea'ns' normally urgingthe said Sear-actuator into? its`v scar-actuating position; a latching-abut` ment mounted'in the gun-structure; and: a complementary ,latching-abutment carried by the arm of the said sear-actuator remote from that arm thereof Which is engagedby the said triggers,

ment With the first-mentioned latching'-a'lmt-l firing-mechanisms. through i the* in@A and adapted for engage ment for holding the said sear-actuator in its retired position and disengageable by a rocking movement of the said Sear-actuator itself to permit the same to move into its Sear-actuating position.

8. In a selective doubletrigger mechanism for double-barrel iirearms, the combination With a pair of iiring-mechanisn'is including the respective sears thereof; of a shiftable Sear-actuator adapted to directly operate the said sears and having a retired and a searactuating position; a pair of triggers each adapted to directly actuate its complementary sear independently of the said sean actuator for releasing one firing-mechanism and each adapted to move the said sear-actuator to cause the same to release the other of the said tiring-mechanisms by direct engagement With the sea-r thereof; springmeans normally urging the said Sear-actuator into its Sear-actuating position; latching-means for releasably holding the said Sear-actuator in its retired position and releasable by a movement of the said searactuator itself to permit the same to move into its Sear-actuating position; and a recoiloperated safety device physically distinct from and adapted to directly engage the said scar-actuator to momentarily prev-ent the same from moving into its scar-actuating position until the recoil and counter-recoil have expended their forces.

9. In a selective double-trigger mechanism for double-barrel firearms, the combination With a pair of firing-mechanisms including the respective sears thereof; of a reciprocat ing and rocking Sear-actuator adapted to directly operate the said sears and having a retired and a sear-actuating position; a pair of triggers each adapted to directly act-nate its complementary scar independently of the said Sear-actuator for releasing one firing mechanism and each adapted to rock the said Sear-actuator to cause the same to release the other of the said firing-mechanisms by direct engagement With the sear thereof; spring-means normally urging the said searactuator into its scar-actuating position; latching-means for releasably holding the said Sear-actuator in its retired position and releasable by a rocking movement of the said soar-actuator itself to permit the same to move into its Sear-actuating position; and a recoil-operated safety device physically distinct from and adapted to directly engage the said Sear-actuator to momentarily prevent the same from moving into its searactua-ting position until the recoil and counter-recoil have expended their forces.

l0. In a selective double-trigger mechanism for multiple-barrel firearms, the combination with a pair of sears; of a pair of triggers, each adapted to independently operate its complementary Sear; a Sear-actuator mounted for both reciprocating and rocking movementsv and having-a retired position and. a scar-actuating position, and adapted when in its active position to operate either of the said sears and movable for the latter purpose by either one of the two said triggers Without moving the other trigger: springmeans normally urging the said searaotuator into its soar-actuating position; and latchingmeans for holding the said searactuator in its retired position and releasable -by a rocking movement of the .latter which may be-eiiected by either of said tr1ggers for permittingy the said springemeansto nieve the said scar-actuator into its searactuating position.

'11. ln a selective double-triggi-nf mechanism for double-barreliirear1ns;tl1e con'ibination With va pair of iiriogemechanisms including the respective sears thereof; of a pair of triggers adapted to effect the opera-- tion of the said sears; a shiftable scaractuator adapted to operate the said sears and having a retired anda Sear-actu ating position and .movable into its latter position in re sponse to a movement of either of the said triggers; and an auton'iatic recoil-operated member constructed and arranged to eifect the movement of the said scar-actuator intoits Sear-actuating position in response to the recoil of the firearm, should the user fail to manually effect "he same by means of one of the said triggers. l

,12. In a selective doubletrigger mechanism for double-barrel firearms; the combination with 4a pair of tiring-mechanisms in` cluding the respective sears thereof; of a pair! of triggers adapted to eii'ect the operation of the said sears; a shiftable scar-actuator adapted to operate the said sears and having a retired and a scar-actuating position; spring-means normally urging the said sear! actuator' into its Sear-actuating position; latching-means for releasably holding thev said scar-actuator in its retired position and releasable by a firing movement of either of the said triggers; and an automatic re-' coil-operated scaractuator-*releasing member constructed. and arranged to unlatch the said latching-means in response to the recoil of the firearm, should the user fail to manually effect the same by means of one of the said triggers.

13. In a selective double-trigger mechanisin for double-barrel firearms; the combination With a pair of liringemechanisms including the respective sears thereof; of a pair of triggers adapted to eect the operation of the said sears; a reciprocating-androclring Sear-actuator adapted to operate the said sears and havii j retired and a Sear-actuating position; spring-means normally urging the said sear-actuator into its kear-actuating position; latching-means for releasahly hold- 'ing the said sear-actuator in its retired position and releasable by a rocking movement of i i i I Ww the said Vsearaetmtoritself under they urge of eitlier of the said triggers; and an'automatie recoil-operated sear-actuator-releasing member Constructed and arran ged to rock the said Sear-actuator to unlateh the same in response to the recoil of the firearm, should the usuer fail to manually unlatch the said sear-eetuator by means of one `or the said triggers.

141. in a. selective double-trigger mechanism for doulilesbarrel irearms, the Combination Awith n, pair of irng-meohanisms ineludinothe respective sears thereof; of a pair of tri y rs adapted to effect the operation of the said sears; reoiproeating-and-roeking emr-actuator adapted to operate the said und lim/ing e retired and 2t Sear-actupositiona spring-means normally urgf 'd seernetueter into its sear'-actuat ing posh in; a. lz'ztehingebutment mounted in the gun-structure; a ooi'npleiuentzny latching-abuliment Carried by tlie said Sear-actuator 'for engagement With the first-mentioned latching-abutment for holding the said searuetuator in its retired position and disengagezlble by u rocking movement of the seid sear- -lxetusitor itself under the urge of either of tlie szlifl triggers; und. an automatic recoil-operated Sear-actueter-releasing member constructed and arranged to roel: tlie said searuetuutor to unlateh the same in response to the recoil of the firearm, should the user fail to manually unlateli the said senr-aetnator by means of one of the said triggers.

In testimony whereof, I have signed this specification.

LOUIS STIENNON.

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