US1692555A

US1692555A - Air pistol or gun

Info

Publication number: US1692555A
Application number: US166698A
Authority: US
Inventors: George S Lewis
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-08
Filing date: 1927-02-08
Publication date: 1928-11-20
Anticipated expiration: 1945-11-20

Description

Nov. 20, 1928. 1,692,555 G. s. LEWIS A1B PISTOL OR GUN Filed Feb.8, 1927 H66 Na7 Patented Nev. .20, 192s.

g imlf'rri) srArs-s eA-rem f AIR PISTOL eRg'sUN Appiication ined February s, i927.'- seriai No. iss ees.

My invention relates to improvements *in w anda seating linger orpush'er, for the ainmunition, carried by said bleek adjacent to the-liront end thereof, together with such 'other parts and members las may be necessary or desirable in order toy render the pistol or gun complete andy serviceable `in every vrespect, all as hereinafter set forth.

Thevprimary object` of my invention is to produce an air pistol orrgun,of the spring-- pressed piston type, that iscompact, simple,

strong and durable, has comparativelyfew working parts, which parts are so enclosedas highly practida-l and efficient.

This pistol vor gun possesses great shooting porren-land is capable of very accurate shoot- Y to b'e thoroughly protected, .and withal YOtlierobjects Vand advantages `will appearv in the course of the following description;-

I attain the objectsand ysecure 1theladvantages of my invention bythe meansaIid mechanism illustrated in the accompanying drawings, in which-` y Figure 1 isa side elevation oita pistol which embodies a practical form ot" my. invention,

showing the movable'. parts and members disposed as'whfen the pistol is ready to .fbe discharged; Fig. 2, a rear end elevation ot said istol Fie; 3 `a central, lonv'itudinal vertical v Section'through the pistol with .the parts disposed as in the first view; Fig. 4', a crosssec- I tion `through the breech block, .taken on lines v4&4, looking in the direction of the associat- 'ed arrow, in Fig. 3; Fig. 5, asideelevation of the pistol with Vthe breech block in its retracted or openposition; Figli, an enlarged front end elevation of askirtedbullet; Fig. 7, a central, longitudinal section through said bullet; Fig. 8, a side elevation, in partial sec-v tion, of the rear-end portion of a "pistol, illiistrating a slig'fhtlyl modified form of construction, and, Fig.r9, a rear endV elevation of the parts and members shown in Fig.,8.

ila r parts throughout thes'everal views.

' Similar reference characters -designate sim-k y Although this `pistol'Will shoot l ordinary slugs or bullets, better results may be obtained when a solcalledskirted'bullet is fused' :for

ammunition, sueltas that represented at 1,

in Figs.` 3, G, and?,

rlfhis pistoly has a frame 2 portionof which Venters into the constructionor vgt'ormationi,of a, handle 3. In opposite sides of the fra-ine 2 arie'longitudinally-extending grooves 5. Y vThe grooves exteiid from the-rear end of the trame; 2 toi'wardly for about three-quarters iof thelen'gth o` said frame. The frame is re-y cessed at y(5 to receive as ear 7,8, trigger 8,l and aspiring 9. Mounted on the front-endor` tion of the frame, and :extending beyonf 'the 'front end thereof, -isa barrel lO; i The-barrel l0 is secured to tlie frame`2 by meansof a transverse pin 1l, one-haltet which is "in-said fi'fiame and 'the other half in Vsaid barrel, and

'a' bolt l2passe'd upwardly through the A',t'raiiie to be tapped into the barrel, At the-inner end ot the barrel 10 is al conieal-projeetion--13.

` The sear 7 is pivotallyconnected at 14: With the) sides of the recess 6in thefranie andthe ,n

ltrigger 8 is pivotally connect/ ed `atfl with saidsides. At the reary end ot the Seary 1 4 is upwardlyand.rearwariillygextendiiig `pro- 'Jection oriii-ger 16. Theioi-ward endet the scar '7 rests en ,the trigger 8. The recess 6* ,opens through the top et the` franie2, andv also through .the bottoinof saidfrai e, and the trigv'er 8 has the usual tail-piecetwhich ,exv tends downwardly 1into position'to be.graspedv .by the `linger when thepistol isfdischarg'ed.

Tliereis the usual guard 17 for the aforesaid trigger 'tail-piece. The bottomfo'tl the recess 7.6, bach ot the iopeningfor. thetrigger tailpiece, is concave, yas represented .et 4t2 in Fig.

3, and the spring 9 rests on ythis concave .hottom, between theorear-end portion, underneath` of thesear 7, and theback` edge `of the trigger' 8. Thespring 9 retains the v s e'ai" in` engagement oncontact with the trigger, and normally said trigger in what'inay be ttermed its forward position and said scar with the finger 16v in eleva-ted position. -A spiral .spring 4is `here used, although a bow spring i would :be applicable.

g Thesear Tand trigger 8 are so consti' ucted that,1when tjhetinger is applied to theQt-rigger `8 andpressed rearwardly, saidv trigger, in

swin.Q .iig on the V,pivot 15,e levates. the front end oi the sea i.7f and depresses ,the rear end thereot, all against the resiliency of the spring 9; then, pon therelease ofsaidfftriggerfrom the frame 2, said "block havin `tom oppositely-disposed, inwar ly-extending store'the parts to their normal positions, or to tend to do'so. Y Y

A breech block 18 is mounted to slide on on the botlanges 19, which are received in the grooves?) and thus hold said block on saidfframe, but permitting it to slide thereon. In the bottom ot' the block 18, above the recess 6, is a longitudinal slot 37 to accommodate the sear finger 16. Securedin the bore of the block 18, by means of a transverse pin 20, is zin-abutment 21, from which extends inwardly acentering pn'22 for a spring` 23, in` the. construction illustrated in Figs. 1, 2, 3, and 5. The abutnient 21 is grooved` as at 24, to permit the air ner end of said bore and the inner to escape trolnthe block 18, when said block 18 is drawn forward to close the rear end ot the barrel and to compress the spring A plunger "is arranged Yto slide in the bore in the bree'ich block18, said plunger being provided with packing, as at 26, Vtopreyent the escape of air between said plunger and the sides of said'bore. vThe packing26 i is adjacent to the forward end of the plunger 25, and adjacent to the rear end of said plunger is'anannular groove 27. The groove 27 is adapted to receive the sear linger 1G. spring 23 extends 25, and bears at opposite ends against rthe inside of the abutment 21, respectively.V The pin 22 also extends part'way vintothe bore in the plungbreech block Tapped into the front end of the bore in the 18 is a hollow plug 28 interiorly tapered to correspond with the taper ot the rejection 13 at the rear end of the barrel 10, and adapted to receivesaid projection when said block is vmoved into closed position. The

forward movement of the plunger 25 is limj ited by the plug The plug 28 is provided with a pusher 29 for the bullet. vThe pusher 29 extends into the passage through the. plug 28, and. has a cross-head 30 at the inner end that is received in a transverse slot" in the rear end of said plug, said cross-head being driven into said slot, or otherw1se rigidly secured 1n place in the plug. The function of the `finger 29 will be more fully explained in connection with the explanation of the complete operation of the pistol.

An actuating lever 31, for the breech block 18, is pivotally connected at 32 with the frame 3 beneath the barrel 10, and a link 33 connects said lever with said block, oneend Iof said link being pivotally connected at 34 with said lever, and the other end of said link being piv- Votally connectedat 35 with said `block adjacent to the forward end thereof. `The pivot 32 ismuch nearer one end than the other of the lever 31, and it is to said tlrst-na'medend that thelink 33 is pivoted at 34. The free end of the lever 31 is offset and ormedwith a later ally extending, curved lip 36 adapted to fit The .i into a bore in the plunger over and baarden topwoftthe block 18, when said lever thrown over inthe direction t move said block forwardly. Y

Starting with the parts and members disposed `as in Figs. 1 and 3, the complete operation of the pistol is described as follows Y The lever 31 is swung on the pivot 32 upwardly, forwardly, and downwardly, Jfrom Athe position which saidlever occupies in Fig.

1 into that which it occupies in Fig. 5, with the result that the breech block 18 is moved i by said lever and the link 33 rearwardlyon the frame 2 into theposition-*shown in said last-named view.

Thismovement of `the block 18 opens the way to the rear end ot' the barrel 10, and the operator inserts a bullet 1 in the bore in vsaid barrel at thatend, it being understomlthat'said bore extends through 1 the projection 13. In moving rearwardly, the

block-18 carries with it the plunger 25 far enough for the sear iin ger 16` tosnapinto the groove'27 in said plunger. VThe airin the bore of the block18 back of the plunger 25 is `forced out through the `grooves 24 1n the abutment 21. Next the lever 81 is swung upwardly, rearwardly, and downwardly,on the,

pivot 32, until the lip 36 comes to rest on top of the breech block 18'.` During this,

movement of the lever 31 the block 18 is actuated `forwardly on the name2, by said lever andthe link, 33, until said block bears against the rear end of the barrel 10, with the "projection 13V inthe plug '28. At this'` time the pusher 29 encounters the bullet 1 and seats the same or causes the same `to be full seated in the bore in the barrel. As the bloei; 18 moves forwardly the spring 23 is compressed between the inner endo the borein the plunger 25 and the advancing abutment 21, because said plunger is now held against `forward movement b the sear `7. 'lhe )arts leased plunger 25 orwwardly with great Aforce, and sald plunger compresses themr in the block ,1:8be'tween the plunger' and the bullet 1, with the result that said bullet is i forced through the barrel 10 and out ofthe same` at a high rate of velocity. The thickness of the pusher 29 with its cross-head 30 is so niuch less than the diameter of the opening 38 through the plug 28 that there is ample space for the passage ot' the comv pressed air .on both sides of said pusher. The

plunger 25 is driven forward bythe spring 23 until said plunger strikes the plug 28.

The

pivots

32,34,= and 35 are so relatively positioned that, when the lever 31 is thrown4 over with the lip 36 onthe `breech block 8,

the plane common tothe centers of the pivots i' in whichy is located the center of the

pivot

3,2,

viorwar dly.

hence said lever is locked' in closed position without liability of becoming accidentally displaced. v ,i

The breech block. 1%V may be closed without compressing the spring 23 .i-ftlle. trigger 8 be pulled to release the plunger soon after said block commences to. move forward, suoli action permitting said plunger tof be carried forward with said block. This is lthe preferred condition when the p iSlfOl is in use.

In the modification illllStIjated in Figs, 8 and 9, a fixed abutment 39, is provided for the spring 23, instead of the 1novableahutment 21. The abutment 39, is verypsiniilar to the abutment 21, except that the former is an integral` .Part of 0r aiixed to. the frame@- There is a longitudinali slot in the bottom of the breech block 18 to accommodate a connecting part 41 between the frame 2 and that part of the abutment 39 which isin thel boite of said block. The abutment 39 has therein grooves 24 for thepflssase 0f all as in th@ other example, and said abut-mentalsohas Y a pin (22)v attached thereto for the purpose oit-.centering the Sprinsr In the modilied construction the spring 23 iscompressedon the rearward movement ci' Y the breech block 18, instead ot on the forward movement thereof, because, when saidy block is moved rearwardly and with it the plunger 25 the s rino is V'com iressed between said plunger and thestationary abutment At the end of the rearward' njiovement of the parts the sear '7 engages the plunger 25, as in the other examplaand causes the spring 23 toebe held under compression-while the block 18 is moved' forward to Close the rear end oi the barrel 10, and `until the trigger. 8` is actuated to cause-said scarto release said plunger. Otherwise the construction and operation of the parts and members are similar in both cases.

The breech block 18 can be opened and closed without leaving the spring 23 under compression, provided the trigger 8l pulled to prevent the seal' 7 from engaging the plunger at the time said block is vmoved Whenthe breech. block Closed, the pusher 29 seats the bullet in the barrel, even if. said bullet falls back or down a short distanee as may occur in the event the pistol be elevate-d at the muzzle while said block is closing, and the bullet is too loosely held after being initially inserted by hand.

The plug 28 should have an air-tight .fit with the barrel projection 13.

No essential change would be involved in embodying this invention in a gun instead of in a pistol.

More or less change in the shape, size, construction, and arrangement of someor all of the parts of this pistol or gun, in addition those hereinbefore specifically pointed out, may be made without departing trom :the spirit ot" my invention, 0r` exceeding the ,Scope o f'whatis elaimed.y e f What I. alain as my invention., and desire to securelay Letters Patent, is

-1. lThe combina-tienda an air pistol 0.1' gun, with a, frame provided with a fixed barrel, and further provided with engaging and releasing' means for i a plunger, of a breech blockslidingly mounted on said frame `behind and in line with said barrel, and adapted to bev moved rearwardly unt-'il its rear end is clear of said frame, a p lungerarranged to slide in said block, and to be engaged by and released from said engaging and releasing means, an abutment, a spring interposed beand releasing means.

2. The combination, in anair pistol orgun,

with a frame provided with a fixed barrel, and further provided with Cooperating tweensaidplunger and 'said abutment, and .movable means between said :tramel and block .spring-pressed sear and trigger member-dof a breech block yslidngly mounted on said frame behind said barrel, and slotted for the .reception of a portion ofsaid sear, an abutment secured in the rear` end of said block, a plunger slidingly arranged in said block in front of saidabutment, and having a part adapted to be engaged by and released 'from said 'sear member, a springI interposed, between saidplungerwd said abutment, and

Ameans pivotally connected with said iframe and block to move thelatter forwardly `and rearwardly. Y

3. Iny an airpistol or gun, a frame provided with a fixed barrel., and further provided with Sear and trigger members, a breech block slidingly arranged ,on said frame behind said barrel, aplunger in said block adapted to be carriedthereby into a position to be engaged by said sear. member, and adapted to move independently in said block when released from said member, a spring bearing onsaid plunger from behind, an abutment for therearend of said spring, a perforated plug in the forward end of said block to limittheforward movement in said plunger, a bullet pusher in the opening. in said plug, but of. less area transversely than that of said opening to permit air to pass therethrough, and means pivot* ally connected with said frame and said block for actuating the latter toward and away from said barrel.

4. In an air pistol or gun, a frame provided with a iixed barrel, and further provided with sea-r and trigger members, a breech block slidingly arranged on said frame behind said barrel, a plunger in said block adapted to be vcarried thereby into a position to be engaged iis by said sear member, and adapted to move independently in said block when released from said member, a spring bearing on said plunger Vfrom behind, an abutment for the rear end of `and further provided with cooperating triggerv and scar members, of a breech block slidingly arranged on said frame back oi' said barrel, and adapted to be moved from engagement with the barrel rearwardly beyond the back end of the frame, and forwardly again into said engagement, a plunger slidingly arranged in said block, and having a part to be engaged by and released from said scar member, a spring bearing at one end against said plunger, an abutment for the opposite end of said spring, an exterior lever pivotally connected intermediate of its ends directlywith said frame, and an exterior link pivotally connected with one end of said lever and with said block, whereby said block is actuated forwardly when said lever is swung on its pivot upwardly, over, and downwardly into normal position, and rearwardly when said lever is swung on its pivot from normal position upwardly, over, and down- Vwardly into a position where it extends beyond the muzzle end ofthe barrel.

(3; The combination, in an air pistol or gun, with a frame provided with a fixed barrel, and further provided with cooperating trigy ger and sear members, of a breech block slidingly arranged on said frame back of said barrel, and adapted to be moved from engagement with the barrel rearwardly be ond the back end of the frame, and orwar ly again into said engagement, a plunger slidingly arranged in said block, and having a part adapted to be engaged by and released from said sear member, a spring bearing at one end against said plunger, an abutment for the opposite end of said spring, an exterior lever pivotally connected intermediate of its ends directly with said frame, and an exterior link pivotally connected with one end of said lever and with said block, whereby said block is actuated forwardly when said lever is swung on its pivot upwardly, over, and

downwardly into normal position, and rearwardly when said lever 1s swung on its pivot -rom `normal position upwardly, over, and

downwardly into a position where it extends beyond the muzzle of the barrel, said-lever 7 In an air pistol or gun, a frame, a barrel mounted on sald frame, and a hollow breech Y block'slidingly mounted on said iframe behind and in line withfsaidbarrel.l said block being provided at the front end with a-pusher for a bullet inserted in said barrel, which pusher is of less area transversely than that of `the bore in said block, and of'greater area transversely than the bore in said barrel, at adjacent ends of said bore.'4

8. The combination, in an air pistol or gun,

with a frame provided with a fixed barrel,

of a breech block slidingly mounted on said frame behind said barrel, a perforated plug in the forward end of said block, and a pusher carried by said block and extending into the opening therein, said pusher being of less area transversely thanV that of the opening through said plunger to permit of the passage `of air therethrough, and adapted, when advanced with said block, to force into said barrel a bullet inserted in the breech thereof.

9; In an air pistol or gun, a frame, a barrel mounted on said frame, and having at the rear end a conical projection, a breech block mounted to slide on said, frame behind said barrel, a slotted plug in the front end of said block, said plug having an opening therethrough the sides of which at the forward end are adapted to receive said projection, and a pusher in saidopening, said pusher being of less area transversely than that of the opening through said plug to permit of the passage of air therethrough, having ahead seated in the slot in said plug, and adapted, when advanced with said plug, to force into said barrel a bullet inserted in the breech thereof.

GEORGE S. LEWIS.