US1494753A

US1494753A - Trigger mechanism

Info

Publication number: US1494753A
Application number: US611738A
Authority: US
Inventors: Elmer E Miller
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-01-10
Filing date: 1923-01-10
Publication date: 1924-05-20
Anticipated expiration: 1941-05-20

Description

E. E. MILLER TRIGGER- MECHANISM May zo 1924. 1,494,753

Filed Jan. lO 1923 2 Sheets-Sheet 1 ELMER E. NHLUERv May 2o, 1924. 1,494,753

E. E. MILLER TRIGGER MECHANI SM Filed Jan. lO 1923 2 Sheets-Sheet 2 Patented May Z0, 1924.

- nutren srArEs ELMER E. MILLER,`OF MILLERSBRG, PENNSYLVANIA. i

TRIGGER MECHANISM. l

Application led January 10, 1923.

To all whom t may concern.'

' Be it known that I, ELMER E. MILLER, a citizen of the United States, residing at Millersburg, in the county of Dauphin and State ot Pennsylvania, have invented certain new and useful Improvements in Trigger Mechanisms, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to single trigger firing mechanisms for double barrel guns of that type wherein the trigger mechanism may be set to fire either barrel by a pull upon the trigger, a second pull upon the trigger acting to iire the other barrel.

An importantfobject of the invention is to provide a novel and improved trip mechanism which may be set to cause tiring of either barrel upon an initial actuation of the trigger and the firing of the second barrel upon a second actuation of the trigger, embodying a setting means .which may be employed to set the trip to fire either barrel as may be selected upon such initial actuation, the setting means being such that when in the neutral' position movement .of the trigger is positively prevented thereby. p

A still further object of the invention is to provide a trip of this character including such a setting means wherein the operation of `the trigger to bring the trip. into engagement with either of the sears ofthe hammer, brings into play means whereby the operation of either of the sears will cause release of mechanism overcoming the action of the setting mechanism and automatically setting the trip in a position to engage the vunreleased sear so that the second barrel may be fired.

Another object of the invention is to provide a device of this character which iseX- tremely simple and which may be applied to practically all of those types of guns the sears of which are provided with'lugs overhanging the trigger mechanism by means of c which they may be tripped.

An additional object of the invention is .to provide a simple and improved resetting mechanism whereby upon movement of the safety latch to its eXtreme forward position, the positioning of the setting mechanism for the firing trip in the neutral position and the locking of the trigger is automatically assured.

These and other objects I attain by the construction and arrangement shown in the Serial No. 611,738.

accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment'o't my invention and wherein, like reference characters designate like parts throughout.

In the drawings Figure 1" is aside elevation showing a breech mechanism of a double barrel gun constructed'in accordance with my invention, the stockvr being shown in section;

v Figure 2 isa similar view of the op-posite side of the gun; i

.Figure 3 i's'a section on the line 3 3 of Figure 2;

Figure 4 isla sectional view on the line P-4' of Figure 2, the trip being shown in dotted ,lines in neutral position and in full lines in positiony to operatev the right hand sear;

Figure 5 is-'a diagrammatic view showing in dotted linesthe trip positioned to operate the right hand sear and in full lines the result of the operation of the right hand sear of the trip; i

Figure 6 is a View showing in dotted lines the trip positioned to operate the left hand sear and 1in full lines the resulty of the operation when the right hand sear is likewise beingv operated; and

Figure 7 isa detached detail view fully illustrafting the novel features of my invention.k f f Referring now more particularly to the drawings,j the numeral'l() indicates a trigger plate ofa 'breech,mechanism, 11 a trigger mount'upon the upper surface of the plate and 12 a Vtrigger pivotedin the mount and operating through a slot formed in the plate. The numerals'13 and 14 designate sears extending rearwardly from the breech plate 15 and operating in the usual manner to hold the hammers 16 in the cocked position and to release the same when the sears have the rear ends thereof moved in the direction in dicated by the arrow. W'hen in cocked or firing position, the body portion 17 of the sears 13 and 14- substantially parallel the upper surface of the trigger plate 10 iny slightly spaced relation thereto. Each

sear

13 and 14 is provided at its rear end with a tripping lug 18 extending over the rear end of the trigger 12 in spaced relation thereto.

In accordance with my invention I form upon the trigger 12 beneath the tripping lugs 18 of the sears-a pair of lugs 19 between' which I pivot a trip 20. rI his trip is vproloo vided at each side thereof with an arm 21 extending outwardly from the trip toward the adjacent side of the trigger plate 10. These arms substantially parallel the trigger plate when the trip is in central or vertical position. Secured to the trigger plate beneath each of the

sears

13 and 14 and at a point spaced from the rear end of the sear is a spring 22, this spring from its point 'of contact curving upwardly for engagement with the body 17 of its associated sear, as indicated at 23, and then slightly downwardly, the curvature of the rear end of the spring being such thatV when the sear is in released position, the rear end of the spring is in spaced relation tothe trigger plate 10 and applies its tension to the overlying arm 21 of the trip 20. Vhen, however, the sears are in the ycocked position, these springs have the rear ends thereof flatly engaged against the trigger plate 10 and 'in spaced relation to the arms 21 of the trip 2O provided this trip be in the central or vertical position above referred to. Accordingly if the trip is shifted to one side and the trigger employed to release one of the sears from thecocking position, this sear during its upward movement will release its associated spring 22 so that the rear end thereof will bring its tension to bear upon the associated arm 21 of the trip. The opposite arm 21 of the trip not being affected by the tension of'its associated spring 22 is free to move' and the trip accordingly swings about its'pivot so that the head or engaging end thereof, indicated at 25, is positioned beneath the tripping lug 18 of the other of the sears to engage thereagainst and operate the same when the trigger is again actuated.

It will accordingly be obvious that if some setting mechanism be provided whereby the trip may be initially moved to a position beneath one or the other of the sears so that upon movement of the trigger the sear will be released, means are provided for automatically shifting the trigger trip to the other of the sears provided this setting mechanism is of such nature that it may be overcome by the action of the spring' 22 which is thus released. Such a mechanism I have herein disclosed and is substantially identical with the corresponding mechanism described and claimed in my co-pending application Serial No. 556,724, filed April 26, 1922 for trigger mechanisms and safety devices therefor. This mechanism embodies a plate or standard 26 vertically arranged upon the trigger plate 10 immediately rearwardly of, the trigger opening thereof to which is ivoted upon a horizontal pivot and to swing ongitudinally of the plate 10 a setting member 27. This setting member embodies an arm 28 engaged in an opening in an operating member 29 actuated through medium of the usual thumb piece 30 located interiorly of the breech mechanism where it is convenient to access. This thumb piece as is usual, may be shifted to any one of three positions, a forward position where the right barrel is to be fired first, a central or neutral position where the gun is held from firing and the trigger against movement, and a rearward position where the left hand barrel is initially fired and is maintained in these positions by a resilient end 31 formed upon the operating mechanism 29 having a lug 32 coacting with positioning notches 33 formed in the upper breech plate of the breech mechanism. Accordingly by the actuation of the thumb piece 30 the member 27 may be rotated about its pivot and arranged in any one of three positions corresponding to the right, safety and left positions of the thumb piece. The member 27 further embodies a substantially horizontally and rearwardly extending arm 84. This arm has secured thereto one end of a light spring 35, the opposite end of which extends through and operates in an opening formed in the arm 21 at the corresponding side of the lug 20, the engagement of the spring in the opening being such as to permit sliding movement of the spring through the opening but to prevent any but a very limited vertical play therein.

This spring is so proportioned that when the member 27 is in that position corresponding to the safe position of the thumb piece 30, the trip 2O is held in the central or vertical position above referred to. The spring 35 is further of such slight strength that it is readily` overcome by the tension of a spring 22 when released by its sear. Since when the thumb piece 30 is in the neutral position the trip is vertical and the arms 21 accordingly horizontal, it will fol low that upon movement of the thumb piece either forwardly or to the rear from l.the safe position, the corresponding elevation or declination of the rear end of the arm 34 will cause a 'corresponding movement of the spring and the spring engaged arm 21. If the thumb piece be moved rearwardly the arm is elevated and accordingly the spring engaged arm 21 is elevated. In the present instance l have illustrated the right hand arm 21 as being engaged by this spring and accordingly such rearward movement would cause the trip to be inclined toward the left and assume a position beneath the tripping lug 18 of the left hand sear 13 with the result that if the trigger be pulled the left hand sear and hammer will be op erated initially. If, however, the" thumb piece 30 be moved forwardly the arm 34 will be moved downwardly and the trip member 2O accordingly positioned to actuate the sear 14 initially. described, upon pulling of the trigger the release of the spring 22 compressed by the As hereinbefore f-i li tilv the thumb piece is again moved. The'- lug 37 ylikewise serves as a stop to limit the movement of the trigger into 'forward or set position and has its upper surface cam shaped so that if the trigger is not fully depressed, the engagement o f the armvtherewith`willv force the lug downwardly until f the trigger assumes the proper position, thus overcoming to a great extent a quick or jerky firing, As is well known to those familiar with the art, small particles of dirt Orfthe vlike or possibly'shreds of material loosened Afrom the gun butt will often get betweentwo portions bf the breech mechanism causing the-trigger to assume a position slightly' rearwardlyof that normally assumed when released. The operator of the vgun in handling the same naturally assumes that'the trigger is in the full forward or set position f and accordingly will prematurely firethe vgun in squeezing the trigger. This'fe'ature is entirely eliminated by* theV construction hereinbefore set forth.v While I 'have illustrated a breech mechanism. as embodying a double firing preventer 38 such as disclosed in the prior application 4hereinbefore referred to, the same isnot hereinjclaimed, or described, since the construction f thereof has been in no wise patentably altered.

The numeral 39 indicatesas-a whole a common form of mechanism for locking the barrels Bin the proper position with relation to the breech plate 15 and embodies" a substantially verticalshaft 4 0 rotatably mounted in the lbreech plate l5 and having at its lower end a crank 41 which is engaged A with a locking 'bar 42" directed through the breechgplate 15 longitudinally of the gun. The'shaft 39 is rotated through medium of a thum'blever 48 and is normally held in one position 'bymeans of a spring pressed lplunger 44, the spring olf' which abuts solidly against the upper plate of the breech `mechanism thro-ugh medium of its housing 45. This shaft when in'its normal' position vthrough the` coaction of its crank4`l lwith thevlocking bar- 42 projects the locking bar forward'lyfor engagement in al vnotch 46 formed in an integral extension 47-depending froml thebarrels B and which notch 46 lis 'aligned with `the locking bar 42 when the barrels B are in the properposition for firing with relation to the Ibreech plate 15. When the lever 43 is moved to the dotted position shownin Figure 2 against the action of the spring pressed plunger 44, the bolt. or locking bar 42 is retracted to the position shown in the dotted lines in this figure and the barrels released for oscillation to the reloading or charge extracting position.

In accordance with my invention I form in the stockS of the gun a bore 48 extending longitudinally of the stock and having its axis directed toward the upwardly extending arm 28 of the setting mechanism and communicating with .a recess 49 in which this arm operates. The |bolt 42 when in retracted position extends into a recess 50 formed in the forward end of the stock S and into this recess the forward end of a pin 51 mounted in the bore 48 normally extends. The rear end of this pin abuts the arm 28 in a manner hereinafter more fully described and the pin is held against excessive movement by a notch 52 formed in the side thereof and `which notch :receives the sleeve 53 surrounding the forward stock pin 54 by meansy ofwhich the stock is secured to the breech mechanism. In addition to limiting the movement of the pin, the notched engagementfof the pin with the sleeve prevents the pin from slipping from the stock when the stock is removed from the breech mechanism..

In the operation of vthe gun, when the thumb piece 30 is in the forward position, the engagement of the arm 28 withthe pin '51 has caused the same tol be moved forwardly to its fullest extent within itsbore 48 and to project well into the recess 50 into which the ret-raction of the bolt causes the rear end of the bolt to be positioned. The projection ofthe pin 5l into the pathof movement of the bolt 42 is for a distance equal to the distance through which` the arm 28 moves at its point of engagement by the pin 51 in moving from the forward position to the safety or neutral position. Accordingly, if the lever 43 is actuated to break7 the gun, the pin 4I is engaged by the bolt 42 and moved rearwardly and by its rearward movement, if the setting mechanisml be in the forward position, moves the setting mechanism to such neutral position, placing the gun in safety and preventing accidental firing thereof. It is well known to those familiar with the art that positioning at the intermediate of safety position is difficult, the lug 32`in entering the notches 38 in order to move the same must have suiicient power applied thereto to depress the same against the action of the spring end 3l and this power is ordinarily sufficient to cause an entire shifting movement of the safety mechanism from one extremeposition to the other. The operator must accordingly be very-,careful in handling the gun since he isliab'le, 'instead of positioning it to safety position, to swing from one firing position to vanother with the result that the guny is ready for firing immediately upon relooking of the breech mechanism and is often accidentally discharged. It will beV seen that by. the mechanism described no care is necessary toposition the setting mechanism at the proper point. The operator afterfiring the gun may without looking at the sameengage-the thumb piece with his finger and force the same forwardly. If the settingr mechanism is by this forward movement'merelyplaced in the safety position, no action of the setting mechanism results from the-breaking ofthe gun. AIf, however, the movement is excessive and the setting mechanism is in extreme `or forward position, the pin in its rearward movement automatically .places the same inthe safety or neutral position and assures against accidental firing.

If the setting mechanism beleft in the rearmost position or what inthe present instance corresponds-'to the firingposition of the left hand barrel until the lgun be broken, attention is called to lthe -fact that the pin 5l will then serve as a stop and that while the gun is broken andthe bolt withdrawn, the trip may `be shifted-to position the setting mechanism and will be limited by the pin 51 to theneutral position. Thus, the pin 51 serves withithe trip'in one position as an automatic set-ting device for the neutral position and when the trip is in the opposite position as a gauge to limit-the-movement of the setting mechanism.

I claim l. In a single trigger mechanism for double barrel guns, a pair lof sears, a trigger arranged between the sears, a sear trip pivoted upon the trigger for oscillation in a vertical plane extending transversely of said sears, an arm extending outwardly from each side of said trip, springs for rengagement with said arms, said springs being engaged and withdrawn from engagement with the arms upon movement of the sears to cocked position, and means for shifting said trip upon the trigger to position the same for initial engagement with either of said sears, said means for shifting the trip embodying a part yielding to permit shifting of the trip under the influence of either of said springs when released by its Sear.

2. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger arranged between the sears, asear trip pivoted upon the trigger vand shiftable thereon to engage either of said sears to move the same to operated position, a shifting mechanism forsaid trip whereby the trip may be positioned to yengage ayselected sear, and

springs coacting with saidtrip and sears acting initially upon operation of a sear to assist the sear in its .movement to operated position andthen coacting with said trip to shi-ft the tripupon the trigger to avposition for engagement with the other of the sears.

3. In a'single trigger mechanism for double barrel guns, a pair of sears, a trigger arranged between the sears, a sear'trip pivoted upon the trigger and shiftable thereon v.to engage either of said sears to move the same to operated position, a shiftingmechanism for said trip whereby the trip may be positionedto engage a selected sear, and springs co-acting with said trip and sears acting initially upon operation of a Sear to assist the Sear in Vits movement to operated position and then coacting with said trip to shift the trip upon the trigger to a `position for engagement with the other of the sears, said shifting mechanism embodying a part yielding under the influence of the spring released by a sear to permit shifting of the trip.

4. In asingle trigger mechanism for double barrel guns, a pair ofI sears, a trigger arranged between the sears, a sear trip pivoted upon the trigger and shiftable thereon to engage either of said sears to move the same to operated position, a shifting mechanism for said trip whereby. the trip may be positioned to engage a selected sear, and springs coacting with said trip and sears acting initially upon operation of a sear to assist the sear in its movement to operated position and then coacting with said trip to shift the trip upon the trigger to a position for engagement with the other of the sears, said shifting mechanism embody/ing a part yielding under the influence of the spring released by a -sear to `permitfshifting of the trip, said part resisting such `yielding and returning the trip to its initial .position upon retraction of the released spring.

5. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger arranged betweenv the sears, aspring'arranged beneath each scar 4and .compressed thereby during its movement to cocked position, a trip pivoted upon the trigger for oscillation to positions engaging either of said sears, an arm extending outwardly from each side of the trip, the ends of said arms being arranged over the ends of the springs and being engaged by the springs when released by the sears, and means for shifting said trip upon the trigger to position the same for initial engagement with either of the sears, embodying a part yielding to permit shifting of the trip vunderthe influence of the spring released by an operated sear.

6. In a' single triggermechanism for double barrel guns, a pair of sears, a trigger arranged between the sears, a spring arranged beneath each searV and compressed thereby during its movement to cocked position, a trip pivoted upon the trigger for oscillation to positions engaging either of said sears, an arm extending outwardly from each side of the trip, the ends of said arms being arranged over the ends of the springs and being engaged by the springs when released by the sears, -means for shifting said trip upon the trigger to position the same for initial engagement with either of the sears, embodying a member mounted for rotation, and a spring secured at one end to said member at a point spaced from the pivot thereof and having its opposite end engaged with one of the arms of said trip, the last named spring being of less strength ythan either of the :first named springs.

7. In a single trigger mechanism for double barrel guns embodying the usual trigger sears and trip carried by the trigger, setting mechanism for the trip for shifting said trip havingy a cam face coacting with the lower to a position where it engages either of the sears or to a position intermediate the sears, said setting kmechanism including an arm extending in proximity to the trigger, and a lug carried by the trigger above which the armpasses, said arm when the setting mechanism is in the intermediate position being aligned with said lug to prevent movement of the trigger, the upper -ace of said lug end of said arml over which the arm rides to insure placement of the trigger in set position. i, f

l8. In single trigger mechanism for double barrel guns, a breech mechanism, barrels hingedthereto,a locking rbolt for the barrels shiftable longitudinally of the gun to barrel locking or unlocking positions, a trigger,

a pairfof sears, one for each barrel, sear tripping mechanism coacting with the trigger, a setting mechanism for the tripping mechanism for setting the same to coact with either of said sears, saidv setting mechanism coacting with :the trigger when in one.

position to lockk the ,trigger against move- *,within the bore intermediate ythe. settingV mechanism and bolt and shifted by said bolt v lment to firing position, a stock havingka recess in which said setting mechanism operv,ates and aY second recess into which said bolt. extends when in the barrelunlock-ingfposiy tion,I a bore formed inthe stock connecting Y said recesses, and a member reciprocable du-ring its movement to barrel locking-or f'barrel unlocking position for positioning the setting mechanism in trigger locking-posi-M tion.

9. In y single trigger mechanisnrI for double barrel guns, a breech mechanism,v barrels hinged thereto, a locking k.bolt for,y the barrels shiftable longitudinally of the gun to Ybarrel locking or unlocking positions, -a trigger, a pair or` sears, one for 'Y eef-thbarrel. Sear tripping ,mechanism ,c0-

acting with the trigger, a setting mechanism for the tripping mechanism for setting the same toc'oact Iwith either of said sears, -said ysetting mechanism rcoacting with the trigger when in one position to lock the trigger against movement to. firing position, a stock having a recess in which said setting mechanism operates and a second recess into which said bolt extends when in the barrel unlocking position, a bore formed in the stock 'connecting said recesses, and a pin mounted in said bore and of a length equal to the distance between the rear `end of the boltv when in unlocking position and the engaged portion of the setting mechanism when in said trigger locking posi- Ytion, a Astock having a'recess in whichk said setting mechanism operatesvand a second recess, into which saidibolt extends when in the barrel unlocking position, la bore cesses,v and apin mounted in said bore andy of a length equal to the distance between therea-r endof the bolt when in unlocking position and the engaged portion ofy the setting mechanism when in said' trigger locking position, and means for securing the stock to the'breech mechanism including a part carried by the stock and limitingl said pin inits movementwithin the bore.

l1. yInra :single trigger mechanism `for double barrel guns, apair of sears, atrigger\a searvtrip operable by ,the trigger and shiftable to positions where itis engageablewith y,either of, said ysearsupon movement-ofthe trigger or to a position intermediateA saidlpositions, and'fselec'tive mechanism forshiftingftheftrip: to" any of said positions` for holding ,the sameJ therein including a part engaging the trigger [upon .movement of-,thetrip from either of the -irstnamed positions to theother of the first named positions orwfrom. either ofthe 1first` named `positions to the last named position to shit the trigger to the fully set position."y Y

double barrel guns, a pair of sears, a trigmechanism for A`l2. Inka singletriggerfmechanism for' `formed `in the stock l'connecting vsaid rerico i movement of the trigger, .and selective mechanism for shifting ,the trip to either of said positions for holding the saine therein including a part engaging the trigger upon movement of the selective mechanism to shift lthe trip from either of said positions to the other of said positions to force the trigger into set position.

13. In a single trigger vmechanism for double barrel guns, a pair of sears, a trigger, a sear trip operable by the trigger and shiftable to positions Where it is engageable with either of said `sears upon movement o-f the trigger or to a position intermediate -said positions,- selective mechanism for shifting the trip to any of said positions and for holding the same therein including a part engaging the trigger upon -movement of the trip fromv either of the first named positions to the other; of the first named positions or fromeither of the first named positions to the last named position to shift the trigger to the fully set position, and means operatedr by the breaking of the gun. When thel selective mechanism is positioned vto hold the trip in oneof the first named positions for positively shifting the selective mechanism to the last named position.

14. In a single trigger mechanism for double barrel guns, Va pair of sears, a. trigger, a sear trip operable by the trigger and shiftable to positions Whereit is engageable lWitheitherY of said sears upon movement of the trigger or to a position intermediate said positions,'selective mechanism for sliiftingthe trip ,to any of said positions for holding the same therein including a part engaging the trigger upon movement ofthe trip from either of the first named positions to the other ofthe first named -positionsor from either of' the first named positions-tothe last namedv position to shift the trigger to the fullyset position,y and. means operated by the breaking of the gun .when the selective mechanism ispositioned to hold thel -trip in one ofthe first named. positions vfor positively shifting the selective mechanism to the last named position, the selective mechanism when in the last named position positively locking the trigger against movement.

15. In a single trigger kmechanism for double barrel guns, a pair ofsears, a trigger, a sear trip operable by the trigger and shiftable to positions Where it is engageable With either of said-sears upon movement of the trigger or to a position intermediate said positions, selective mechanism for vshifting the .trip to any of` said. positions forl holding the same thereinincluding. a part engaging the` trigger. upon movementzof Vthe trip ,from

either of theiirst named` positions totheV other of thefirstnamed. positions or from either of the first'named positions to the last named Yposition to shift the trigger to the fully set position, the selective mechanism when in the last named position positively locking the trigger against movement.

16. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger, a sear trip operable by the trigger and shiftable to positions Where it is engageable With either of said sears upon movement of the trigger or to a position intermediate said positions, and selective mechanism for shifting the trip to any of said positions including an arm, a cam carried b v the trigger and with which the arm co-operates upon movement of the trip from either of the first named positions to the other of the first named positions or from either of the first named positions to the last named position toshift the trigger to the fully set position,

17. In a single trigger mechanism for,

double barrel guns, a pair of sears, a trigger, a sear trip operable by the trigger and shift- `able Vto positions Where itis engageable With either of said sears upon movement of the trigger or to a position intermediate said positions, and selective mechanism for shifting the trip to any of said positions including an arm, a cam carried by the trigger and with which the arm co-operates upon movement of the trip from either of the first named positions to the other of the first named positions or from either of the first named positions to the last named position to shift the-trigger to the fully set position, said arm When in the last named position being. positioned directly above said cam and positively locking the trigger against movement.

18. vIn a single trigger mechanism for doiiblebarrel guns, a pairof sears, a trigger, a sear trip operated by the trigger and shiftable to engage and operate a selected sear upon initial operation of the trigger, and means released by an operated sear engaging the trip and shifting the same to a position for engagement with the other sear, said means acting to assist the 'Sear in its. movement to operated position.

19. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger, a Sear trip operated by the trigger and shiftable to engage and operate a selectedsear upon initial operation of the trigger, and a spring released by an operated sear engaging the trip and shifting the same to a position for engagement with the `other sear, said l double barrel guns, a pair of sears, a trigger,

a sea-r trip operated bythe trigger and shiftable to engage and operate a selected sear upon initial operation of the trigger, and means for shifting thetrip into position for engagement with either ofthe sears includ- .ing a part coacting with the trigger during shifting of the trip from a position to engage one sear to a position for engagement with the other sear to Jforce the trigger into fully set position.

21. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger, a sear trip operated by the trigger and shiftable to engage and operate a selected sear upon initial operation of the trigger, and means for shifting the trip into position for engagement with either of the sears including a part coacting With the trigger during shifting of the trip from a position to engage one sear to a position for engagement With the other sear to force the trigger into fully set position, said part at a point intermediate said positions overlying the portion of the trigger with `Which it coacts to prevent movement thereof.

22. In a single trigger mechanism for double barrel guns, a pair of sears, a trigger, a sear trip operated by the trigger and shiftable to engage and operate a selected sear upon initial operation of the trigger, means for shifting the trip into position for engagement with either of the sears including a part coacting with the trigger during shifting of the trip from a position to engage one sear to a position for engagement With the other sear to force the trigger into fully set position, said part at 'a point intermediate said positions overlying the portion of the trigger With which it ooacts to prevent movement thereof, and means operated by breaking of the gun for shifting said part to said position when the part is positioned .for initial operation of one of the sears and the gun is broken.

In testimony whereof I hereunto aix my signature.

ELMER E. MILLER.