US1176254A - Firearm. - Google Patents

Description

M. F. SMITH,

FIREARM.

APPLICATION FILED AUG.28. I913.

Patented Mar. 21, 1916.

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M. F. SMITH.

FIREARM.

APPLICATION man AUG.28. 1913.

' Patented Mar. 21, 1916.

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M. F. SMITH.

FIREARM.

APPLICATION FILED AU6.28, I913.

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M. F. SMITH.

FIREARM.

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APPLICATION FILE D AUG. 28. I 9 l 3.

III l I .II I I I I I I l\..| I I II I l l I I I l I l I i |ll I I II I ll K s w k WITNESSES UNIT D STATES. PATENT OFFICE... I

'momus F. SMITH, 0F UTICA. NEW YORK. ASSIGNOR TO SAVAGE ARMS company, OF UTICA, NEW YORK, A CORPORATION O NEW YORK.

FIREARM.

Specification of Letters Patent.

Patented Mar. 21, 191G.

Application me August. '28, 1913. Serial No. 787,084.

I To all whom it mai/ concern? lie. it known that I. Mmuc s F. SMITH, a citizen of the Uiiite l$ltates. residi' 'ig at l'tica, in the eountvot Oneida and State of New York, have invented certain new and useful lmprovmnents-i|i Firearms. of which the following a s 'iecificaitimi.

This invention relates to that class of fire arms in. which the forces incident to plosion of the chii ggel are utilized to open the breech, eXtractQIthe spentshell, introduce a-frcsh cartridge and; cock the. piece.

The present invention,conten'iplates certain improvements, herein illustrated in a gun of the pistol type, having for their objects to increase the elliciency of tliqarm, simplify its construction, facilitate the assembling and disassembling of the parts and render it safe to handle and reliable.

()ne salient'feature of the improved arm consists in a novel means forpostponing the. opening movementoli the element movable to open or close the breech .until a suitable time after the inception of the 'action of the ex losion-prcssure to project the bullet' or pro ectilef0r instance. in accordance .withthe usual obj a until after the. bullet or projectile has c .a're'gil'the barrel and the force remaining breech is the'forc of recoil.

Another sal'ientjfeature consists in certain arrangements and constructions of parts whereby assembling and disasseml'iling-are.

facilitated and the mechanism at the same time simplified and rendered substantial and durable.

Another pron'i'inent feature consists in an improved arrangement and construction F the parts involved in the mecl'ianisn'i for hring the charge, whereby their proper cooperations are. assured and the element oi reliabilitv in respect to them increased.

Another im mrtant feature. consists in certain novel means "whereby till rendered safe when not in use.

Referring. now, to the :ua-ompaIrving drawings fully illll .(l':lii\'l. ol' the improved irni. Figu e 'l is a si(le i-le\'ation thereof. showing the near-grip plate partly with drawn; Fig. 2 a" side. elevalion. partly in section. showing the l'n'em'th-slide retracted and illustrating the disassembling operation, a certain block 15 being removed: Fig. 1. is a longitudinal vertical sectional view of the,

ailable for opening the;

arm

arm with the parts shown in condition for tiring. the magazine being omitted; Fig. 4 is a similar sectional view of the-armvafter' fe, the trif flell" n'iechanism re-'- trarted and the hrecch slide in its rearward I position; I g. 5 is a rear-ele 'ation and Fig. so

i a front elevation oft-hearm; .Fig. 7 is a right side elevation of the arm with the breech-slide removed and the near grip plate partly ivit'hdraiv-n; Fig. 8 is an underneath planot theframe. Figs. 9 and 10 showingpcs respectivelv', the left hand and right hand grip plates in inside and edge elevation; Fig. 11 is a plan, partl v:in section, of the frame. and the parts carried thereby not including the breech-slide, the scar and them block 15; Fig. 11 asectional. view on line.

I '-r, Fig. 11; Figs. 12 and 13 are sectional views on substantially the lines 'w w and 'u.'-.'/- of Pig. 1; Figs. 1,4 and 15 are top and umlerneath plans'of thbreech-boltg Fig. 1-6

is a front elevation and Fi "5.17 and lS sec tional lt-\\'S !1. illt. line. g and respectively, of Fig. 14-, looking i'tearwardly';

lfigs. l9 and iO are. plan and trout elcvations of the said block 15; Fig. 2-1 shows the 30' firing pin spring-device or ('lriver; Fig. 22 is a plan of the dog forjlili gkingjrcarward movement. of the hreeelns'lidc' following explosion 'l*igs. and are a elevation j and 26 are a side elevation?- the sear; Fig. 27 is a detail illl manner of retaining inplace certain longitudinallv entered pins; Fig."'2S is "i sectional l a plan of view of the arm. illustrating the; means tor-- when the last cartridge is lired; .Fig I and Ill are a l'nignn-ntary side. clmatron, a plan and a rear elevation of the magazine,

Fig. 3U including a part of the means shown 9.5

" and Figs. 3 and 3 illustrate ain Fig. modificat on of the gun.

I is a 'lrainc ha r ng a grip to receive the magazine 3. and a trigger guard l arul l'ormcdalong its upper straight edges with lateral grooves 5, such frame including a horizoulallv bored upwardlv projecting and a plan of the trigger mecl'iaiiism;'FigS. 85 v v ating the 'lhe breech-slide includes the breech- 1'05 cxtremit of the frame, the forward portion of said reech-block being cylindrical and telescoped with the barrel; said breech-slide also includes, fitted snugly into the rear part of the breech-block, the breech-bolt 10 which, without at this time describing the details thereof, has on the top a tenon 11 received in a mortise 12 in the breech-block, which tenon may form one of the sights. The breech-bolt, in the normal position of the breech-slide, is supported by surfaces 13 on the top of the frame, which surfaces at 13', Figs. 11 and 11*, are inclined downwardly at the rear, allowing the rearend' of the breech-bolt, when the breech-slide is retracted, to fall sufliciently to clear the tenon from the mortise for the purpose of removing the breech-bolt from the slide in the operation of disassembling the gun (Fig. 2) normally, however, the upper portion (into which the rear end'of the breechbolt may drop as just stated ,of a T-shaped recess 14 formed in the back upper part of the frame is occupied by a T shaped retaining block 15 (Figs 3, 5, 19 and 20) held in place by a pin 16 (Fig. 3), so that the breeclrbolt in. the action of the piece is confined to a perfect rectilinear movement. A spring 17, housed in the slide, coiled about the barrel and confined between an interior shoulder 18 (Fig. 3) of the breech-block and abutment 6, normally holds the breech-slide at its forward limit of movementwith the breech-bolt against the abutment; the rearward movement of the breech-slide is limited by contact of the forward cylindrical portion of the breech-block with said abut- .mcnt, Having removed the pin 16 and thereupon the block 15 and then forced the breech-slide back to its rearward position, the interlock 11-12 between the breechblock and breech-bolt may be disestablished and upon the removal of the latter the breech-block and spring 17 may he slipped forward off the frame and barrel, respectively.

For postponing the opening movement of the breech-slide until after the bullet or projectile has left the barrel, so that the force remaining available for effecting such movement shall be the force of recoil I employ the following means, liable and otherwise perfectly adapted to the end in view: The rear end of the forward cylindrical portion of the breech-block has beneath the barrel an abutment-surface 19' against which bears an abutment-surface 20 at the forward end of a dog or lever 21 fulcrunied on a pin 22 in the recess 23 in the frame and' having its rear end exposed at the top of the loop of the trigger-guard; either or both of the surfaces 20 are inclined rearwardly with respect to the path of movement of the breech-slide, and, in the normal position of the; parts (Fig. 3), the

backed by a driver consisting of at once simple, re?

dog is held up to its Work, with its abutmentsurface 20 bearing against the abutment-surface 19, by the spiral spring 24, backed by the adjusting screw 25, so that resistance is normally opposed to the rear ward movement of the breech-slide. Such resistance, effective for a suitable time after explosion of the cartridge, ultimately ceases because, one or both of the surfaces being inclined, the backwardly influenced breechslide operates to wipe down the forward end of the dog. The duration of this resistance is variable, depending upon the friction developed between the surfaces 19 20 (in turn depending upon the degree of obliquity of one or both of said surfaces) with a charge of a definite driving power-and a definite resistance to displacement ofi'ered by the dog backed by its adjustable spring 24, and upon the extent to which the dog must move to clear the breech-block; the degree of obliquity of one or both of the surfaces 19 20 and the extent .of movement of the dog being fixed upon at the time the gun is made, the precise time during which the resistance is to be effective for a charge of a given driving power may be nicely determined by adjustment of the screw 25. The rear end of the dog projects into the loop of the trigger-guard so that the dog may be 'conveniently moved by the finger out of blocking relation to the breech-block upon manually forcing back the latter,

The breech-bolt has extending from its rear end a bore 26 closed atthe front end of the bolt excepting for a hole 27 through which the point of the firing pin 28, having movement in and longitudinally of said here, may protrude to strike the cartridge; coextensive with this bore is a downwardly opening slot 29 which receives the cocking lug, 30 of the firing pinand so keeps the latter against rotation. .The firing pin is a pin 31 having a head on its forward'end, which is received by a rearwardly open socket in the firing pin, and a spiral spring 32 coiled about the pin andheld under compression between the headthereof andthe abutment 33 forming the closed end of the-socket of a horizontally socketed'head 34a1pstanding from the block 15, it being noted that the ends of the spring are housed in the socketed firing pin and head 34. The pin 31 not only preserves the spring against buckling but. adds striking mass to the firing pin, as will be obvious. Extendinga suitable distance back from its forward end and on the under side thereof thev-breechbolt is formed with bolt,

The sear 38 is formed part loop-shaped in plan to permit the unobstructed elevation of the cartridges into alinement with the barrel for breeching', in fact embracing the upper end of the magazine. On each side it has a trunnion 39 which seats in bearings 40 in the top of the frame; thebearings 40 are open to permit the ready removal of the sear upon removal of the breech-slide, the edges of whose breech-block afford asliding bearing forsaid trunnions, confining the sear to only pivotal movement. The rear end of the sear has a rearwardly projecting lug 41' received by slot -29 in the breech-bolt andnormally uplifted, so 'as to lock back the firing pin by engaging with its lug 30, by a pin 42 projecting downwardly (for a purpose to be explained) through a housing 43 in the frame and itself pressed upwardly by a. spiral spring 44 interposed between the head of said pin and the bottom of the housing. The sear has a forward lug 45 and a downwardly depending arm 46.

The trigger 47 has its forwardly projecing upper end fulcrumed on the pin 48 and is held in the rest'position, with'said end abutting theforward surface of the triggerhouslng 49, by the spring 50. Housed in the back of -"the trigger and pivoted therein on the 'pin 51 is a bell-crank pawl 52 normally, heldby a spring 53, engaging its upright arm 52, with its forwardly extending arm 52 bearing against ,the trigger,-in vhich position theupper endof said arm 52 takes under the lug 45 onv the sear. When the triggeris retracted and the lower end of the pawl therefore moves in a generally upward-backward direction, the pawl arm 52', by engagement with the lug 45 of the sear, trips the latter out of engagement with the firing pin; the engagement of the pawl arm with the lug 45 is of a slip-off character, so that when, due to the contact of the knee or lug 54 of the pawl with the arm in of the sear (whereby a fulcrum for the pawl on the sear is afforded), the pawl is. rocked forwardly on its pivot in the tagger, substantially at the time the sear vlears the firing pin the pawl arm 52' clears said lug, leaving the sear free to redog the firing pin upon the ensuing recoil of the. breech-slide. Fig. 4 shows theposi tions of the pawl and sear in the retracted position of the trigger. When the trigger is released, the movement incidentally imparted thereby to the pawl, with the co-. action of spring 53, resets the pawl in reugagemcnt with the sear, as shown in F' 23.

he magazine 3, entered from below into the grip 2 in thefusual way and provided with the spring-elevatedplatform 55, has its inwardly bent lateral lips or extensions 56 formed at the rear and on the inside with forwardly inclined flanges or ribs 5" (Figs. 4 and 29' to 31). The forward pitch of magazines of this character is such that in the consequent stepped disposition of the cartridges therein (Fig. 4) the rim of the topmost cartridge registers with the canne lure of the next, in consequence of which the first sometimes interlocks with the second and refuses to respond to the breeching pres- By providing the forsure of the bolt. wardly inclined ribs 57, the topmost car'- tridge under the pressure of the platform is advanced (by wiping contact of its rim with said ribs) sufiiciently to bring its rim out of register with the eannelure of the next by the time it is brought to rest against the overhanging lips 56, thereby avoiding their interlocking.

At the left side of the magazine there is arranged the lever 58 having a lateral stud I 59 journaled in the left wall of the frame. An enlargement or head 60 at the forward end of this lever is movable in a recess 61 cut in'said wall downwardly from the left guiding surface for the breech-slide and formed at the outside with a. milled depending thumb-piece (confining the lever in as- ;sembled relation with the wall aforesaid except said thumb-piece be elevated clear of it) 62 and a hook 63 andat the inside with the overhang or projection 64 in thepath of upward movement of the part 55' of the magazine platform. Ataipoint in the left side'of the breech-block adjoining the hook when the breech-slide is full back (Fig. 2)-

a notch 65 is formed in the breech-block, being adapted to receive the hook. \Vhen, therefore, the platform rises to elevate the last cartridge into alinement with the barrel, the part 55' thereof comes into engagement with the overhang 64,- elevating the,

forward end of the lever 58 so that, upon the firing of such cartridge and consequent driving back of the breech-slide, the hook of said lever will be caused to catch in the notch 65 and lock back the breech-slide, thus signifying that the magazine is empty. Ha'ving replaced the empty magazine with a charged one, a downward pressure of the thumb on button 62 will allow the spring 17 to. return the breech-slide, breech ing a car tridge and cooking the piece. To insure against premature locking action of lever -58 it is normally held with its hook-end depressed by a spring-device (i6 weaker than the platform spring) housed in the frame under its rear end.

In the rear upper part of the frame is journaled a spindle 67 having on the left side of the gun a handle 68 formed with a milled head and normally movable through apln'oximately 90 from a position where its a position Where said handle projects rearwardly"(safe). The spindle receives the rear end of lever 58 in a transverse saw-cut or groove 69 extending only part way around the spindle and formed deeper at' one point than elsewhere, producing an an gular cam 70 which, with the spindle in the position shown in Fig. land the breechslide in the position shown in Fig. 1, cperates to hold the lever in looking engagement with the breech-slide with its hook in the notch thereof (as when, having manually retracted the slide, it is desired to lock it back), but which, with the spindle in the position shown in Fig. .2, leaves the lever depressed. In the-vertical plane of the lug 41 ofvthe sear the spindle has a saw-cut or recess 71 disposed so as to register with the lug (allowing movement of the scar on its fulcrum) when the spindle is in the position shown in Figs. 2 and 28; when the spindle is in theposition shown in Fig. 1 the uncut surface of the spindle underlies the sear lug 41 and prevents movement of the sear. Since movement of the spindle from unsafe to safe involves movement of lever 58 toward its position for interlocking with the breechslide in the closed position (Fig. 1), the breech-slide has a recess '72 aflording the necessary clearance to hook 623 and overhang 64; the lever 58 cannot lock the breechslide against the desired backward movement upon explosion of the last cartridge, due to a premature upward pressure thereon by the platform part 55, because the latter is suitably depressed relatively to the remainder of the platform which is at that time held down by the breech-slide.

The spindle is longitudinally removable from the frame, being normally retained by a suitably housed spring-pressed plunger 7 3 taking into a groove extending only partway around the spindle, forming an angular cam 74 and disposed on the same side of the spindle as groove 69; thus, when the spindle is between or at either of the safe and unsafe positions, it cannot be removed, but when turned beyond these limits-(the breech-block being removed) it can be, parts and 58 now engaging smooth or ungroovcd portions thereof. It will be understood that in the assembled condition of the gun the ln'ccch block and the left grip plate 81) confine the handle (and hence the spindle) to' its aforesaid 90 of movement; also that cams 70 and 74, being angular, are responsible for their; respective cooperating parts 58 and 73 holding the spindle at either theone or the other of its limits of movement.

To look thesear against releasing movementcxcept when the gun is gripped for fir ing a safety lever 75 pivoted at its lower end and partly housed in the rear of the grip, being normally pressed rearwardly a spring 76 to a limit afforded by its lug i the pin, leaving the latter and hence the sear y free to descend in response to actuation from the trigger mechanism.

Certain pins, for instance 16 and d8, are held against longitudinal displacement in the novel manner shown in Fi 27. The

pin and the bore formed in the name; to receive it have registering channels 79 forming canrshoulders' ext-ending more or less clear around the pin, and in these is fitted a split ring 80 normally serving as a key to block the withdrawal of the pin except when force is exerted on the 'pin suflicient to wipe the ring out of one channel into the other, involving a change in its diameter (in the present instance, a collapse of the ring).

The grip plates 81 have on their inner sides dovetailed tongues 82, enabling them to be fitted to or withdrawn from the frame by sliding movement in an up or down direction. -They may be entered from below a part of the frame, being held in position by the dowel pin 84C; in Fig. 2 the near grip-plate is entered from above (with the breech-slide removed) and comes to rest, against the stop 85, being held down by the;

breech-slide when the gun is assembled. 5

To indicate the presence or absence of a cartridge in the brecch'I provide't-he breech:

block with the inwardly bent spring 86 hav ing the outwardly projecting stud 87 and fitted to the inside of said breech-block over theextractor 87, its stud being received by 11 the opening 88 in the breech block. If a cartridge is present in the breech the extractor will be elevated and hence will ele vate the spring 86 so that its stud protrudes and may. be felt by the operators thumb; if no cartridge is prese'nt the stud remains retracted.

Operation: Assuming the gun to be cocked (Fig. and the magazine containing car. trnlges, when the trigger is pulled the sear is tilted to release the firing pin which then strikes and explodes the cartridge (previously brecched by manually retracting the breech-slide to allow said cartridge to be elevated by the platform of the magazine into alinemcnt with the breech, Fig, 4, and then permitting spring 17 .to return the brecclvslidc to breech-closing position), the resulting recoil of the breoclrslide and subsequent return to breech-closing ppsitien in .assume the'breech-closing position, breeching the topmost cartridge and leaving the firing pin cocked. 7'

In the gun illustrated in Figs. 32 and 33 the lever 88, corresponding to lever 58 already described in the function of locking the breech-slide in its rearwardposition in the manual performance of this operation, is pivoted in a recess 89 in the block 15, its hooked end being normally held depressed by the spring 90.j The spindle 91, corresponding in the function of locking the sear with the spindle 67 already described, and for that purpose having the sear-liberating recess 92, has a saw-cut or groove, formed deeper at one point than elsewhere, which groove (93) receives the hooked end of said lever. \Vhen the handle 94: of said spindle is in any position between and-including its downwardly or rearwardly projecting positions it is locked-by said lever against removal, (said leverbeing in turn confined by one side of the recess 89 and the opposite wallof the gun-frame against lateral displacement); when the spindle is turned to any other position, as by having first removed the breech-slide, it may be withdrawn without obstruction. The groove 93 forms a cam in'the spindle which, when its handle occupies the position shown in Fig. 32 (unsafe), permits the le.ver to stand depressed but which, when the handle is turned to the rearward position (safe), holds the lever elevated, its hook being either received (idly) in recess 95 in the breech-slide or, thebreech-slidc having been manually forced back, engaging in the notch 96 therein and maintaining the breech-slide in the rearward position. In this instance, the grip plates 97 (having tongue and groove connections withthe frame the same as in the gun first described), entered into position from above when the breechblock is removed, are held against vertical dis placement by the spindle.

Having thus fully described myinvention, what I claim and desire to secure by Let ters Patent is:

1. A gun including a frame, a barrel member, a breech'closing member, one of said members being movable into and out of breech-closing relation to the other, and mechanism for firing the charge including a trigger, in combination with means 'l'r-rretar-ding the march-opening movement of the movable member upon firing the charge projecting into proximity to the trigger and operable by the trigger-finger of the operator.

2. A gun including a sliding member and a breech-bolt member movable together longitudinally of'the gun and havin aninterlock separable by movement 0 the bolt member crosswise of their path of sliding movement, and guiding means for said members comprising the bolt member against crosswise movement and having a part of its guiding portion removable -to allow such movement when said members are "at a definite point in their sliding movement. Y

3. A gun including a sliding member and a breech-bolt member movable together longitudinally of the gun'and having an interlock separable by movement of the bolt member downwardly, and. means to confine the bolt memberagamst downward moveare at. the rearward point in their "sliding movement.

5. A gun including a sliding member and a breech-bolt member movable together 1on gitudinally of the gun and having'an interlock separable by movement of the bolt member downwardly, andmeans to confine the bolt member against downward movemeut having a. fixed forward portion extending only part way back of the forward end 0t thellolt member when said. members are at their rearward limit of sliding'movement and a. removable rearward portion, whereby, upon removal of said rearward portion. said bolt member in the retracted position may be ranted downwardly on said forward portion as a. fulcrum to scparate said interlock. v

G. A gun including, with a firing mechanism. a sliding member and a breech-bolt member movable together' longitudinally of the gun and having an interlock separable by movement of the bolt member crosswise of their path of sliding movement, and means to confine the bolt member against crosswise movement having a part thereof removable to allow such movement when said members are at a definite point in their filldlllg movement and affording partial support to the firing mechanism.

, member.

8. A gun including, with the firing mechanism, a sliding member having a rearward.

bolt-receiving portion'and a breech-bolt nit derlying said portion, said members having an interlock separable by downward'movement of the bolt member, and guiding means for said members, confining the bolt member against downward movement and having a part of its guiding portion removable to allow downward removal of the bolt member from the sliding member and affording partial support to the firing mechanism.

9. In combination, a frame, a rcarwardly sliding member guided thereon and having a rearward bolt-receiving portion movable into rearwardly projecting relation to the frame, and a bolt member underlying said portion, said members having an interlock separable by downward movement of the bolt member and said frame supporting the bolt member and having a part thereof removable to allow downward movement of the bolt member in the rearward position thereof.

10. A gun including a sliding member having a rearward downwardly open arched portion and a breech-bolt member entered 4 1 from below into said arched portion, said mbers having an interlock holding them against relative longitudinal movement and being separable by downward movement of the bolt member. and means, confining the bolt member against downward movement, for guiding the slidingmember.

11. In combination, the frame having an upstanding barrelabutment, the breechblock longitudinally movable on and guided by the frame and having a rearward downwardly open arched portion housing said abutment, a brecc h-bolt entered from below into said arched portion and disposed therein back of the abutment, said block and bolt having a mortise and tenon connection separable by downward movement of the bolt, a spring interposed betweena part of the frame and the block and holding the latter forward with the bolt abutting the abutment, and mechanism for firing the charge, said frame confining the bolt against downward movement and having a part thereof removable to allow removal of the bolt,

12. In combination, the frame having an upstanding barrel -abutment, the breechblock longitudinally movable on and guided abutment, a breech bolt housed and removably held in said arched portion back of the abutment and removable downwardly from said arched portion, means normally holdmg the breech-block forward with the breech bolt abutting the abutment, and mechanism for firing the charge, the frame confining the breech-bolt in said arched portion of the breech-block.

13. -A gun including the frame, a longitudinally movable brech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide and means for releasably sustaining said device in cocked position including a scar having a bearing in the frame and removable in an upward direction from its bearing and confined norinailly against such removal by the breechsn e.

14. A gun including a frame, a longitudinally movable breech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide and means for releasably sustaining said device in cocked position, including a scar having a sliding bearing upon the breech-slide.

15. The combination of the frame, a re- .coili'ng breech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide, a scar for the firing device normally held.- in position to dog the firing device, and means for effecting releasing movement of the sear having at one point thereof a slip-off engagement with the sear and at another point thereof a fulcrum on the sear.

16. The combination of the frame, a recoiling breech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide, a scar for the firing device normally held in position to dog the firing device, a trigger, and a device for transmitting motion from the trigger to the sear having at one point thereof a slip-off engagement with the sear and at another point thereof a fulcrum upon the sear.

17. The combination of the frame, a recoiling breech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide, a sear for the firing device normally held in position to dog the firing device, a trigger, and a pawl for transmitting motion from the trigger to the sear pivoted in the trigger and having at one point thereof a slip-off engagement with the scar and between its pivot and the first-named point a fulcrum on the sear.

18. The combination of the frame, arecoiling breech-slide, a cockable firing device adapted to be moved to cocked position by the breech-slide, a sear for the firing device movable up and down and normally held in position to dog the firing device, a trigger pivoted in the frame forward of the scar, and a forwardly yielding pawl supported on the trigger and substantially over its pointof support on the trigger having a slip-off contact with the sear and between said point and the point of contact with the scar having. a fulcrum on the latter, said sear having; a forwardly terminating surfacelafl'ording said slip-off contact for the paw e l 19. lnmombination, the frame, recoiling breech-slide, mechanism for firing the charge, a locking device for a part of said mechanism, a magazine having a plat-- v form normally pressed upwardly, and a platform-actuated locking device for the breech-slide operated by and upon movement of the first locking device.

20. A gun having. with mechanism for firing the charge, a controlling spindlefor a part of said mechanism journaled inand' removable longitudlnallv from the gun and. having a groove extending only part around the same, a spring-pressed retaining device engaged in said groove, and means for confining the rotary movement of the smndle within limits commensurate with the engagement of the retaining device within said groove having a part thereof a pin-receiving bore, a pin for retaining the removable structure in place in the fixed.

structure fitted into said bore and a yielding split-ring embracing the pin, said pin and the bore having shoulders extending around the pin and normally engaged by said device and coacting, to prevent longitudinal displacement thereof, one ofisaid shoulders constituting a cam and serving, upon suflicient pressure being exerted on the pin to move the same endwise, to clear. said device from engagement therewith and allow removal of the pin.

A gun including the frame having a depending grip, firing mechanism having a firing; device, a sear for thefiring device m'ovahle at its rear portion downwardly to release the firing device, a trigger for the sear, a spring-elevated device. normally holding elevated the rear portion of the sear, and a normally retracted lever fulcrumed in the hack of the grip and having a part thereof normally underlying and blocking downward movement of the spring-elevated device and adapted to be shifted out of blocking relation tothe same When the lever is moved forward upon the gun being gripped for firing.

In testimony whereof I ailixmy signature in presence of two witnesses.

- MORRIS F. SMITH.

WVitnessesf "BENJAMIN ADRIANCE, CARLETON L. Wooo. v

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