US1990302A - Air pistol - Google Patents

Description

Feb. 5, 1935.

A, MORCHE AIR PISTOL Filed June '7, 1933 fyff; 5,

BYCQMYZQM ATTORNEY.

Patented Feb. 5, 1935 UNITED srArifl-:s

PAT-ENT lof-Fries 'Thisv invention 'relates to improvements in air pistols, and has for its principal object theprovision of a device of the character referred to, which is simple in construction,` economical to manufacture, and easy to assemble.

'Another object :of the invention is the provision of Van air pistol which will project pellets with'suflicient -force and accuracy so that @it can readily be used for indoor target practice.

Another object of the invention Vis the provision of van airpistolin which the-contractionof the operators hand is utilized to further compress the 4air thesbarrel -afterfthe impeller spring hasr been v-fully -contracted and `the-plunger re- I leased.

Another 4object of the invention is the provision of an lair, pistol which vwill Iemit -afhigher pitchedvstaccatosound when the pellet is discharged. i

Another object of the invention is 'the provision ofan \air 'pistoljwhi'ch -canbe-formed al-most entirely ofstampings' secured toget-her -by mea-ns formed integral therewith.

Another object -offthe invention' is `the provi-l sion/ IofA an a-irpistol formedalmost entirely of stampi-ngs :having @means 'formed' integral therewith,"uponvwhich certain lof" themoving'parts'are pivoted. l

' The 'foregoinga-nd other 'objects'of vthe invention will 4be more readily understood after-*a careful examination-of the Afollow-ing'description `in which reference is made to rl'the -accompanying draWing-in-which: V Y' Fig 1 is-a vertical -sectiona'lviewy of.A a `pistol embodying myv invention. 'j l Fig 2 is a' fragmentary 'sectional 4vieu/showing they operatingmechanismr at the moment -of releasingfthe lock-ing detent. f l

"-Fig. 3 is Aa fragmentaryside elevationalview f with parts -lorolen away, illustrating the position ofthe trggerand plunger at the instant of discharge.

-Fig."4 is xain-enlarged vertical section taken onA line 4-4 of Fig. y1.

v-5 is alfragmentary sectional view taken on line 5-5 of Fig. 1.

Fig. 6 -isa rear elevational view.

Figr' -is a sectional viewtaken on line 7-7 of/Figf'2.

16 are positioned. Along the upper portion of :9F-ig.- 8 is a sectional yviewtaken ony line 8-8 ofl each-stamping -10- and 11`is formed afsemcircula channel 17 adaptedfjto engage 5 one end of theA barrel 14. Inturned bosses 1B-are formednear the forward end -of the channels 17-and arevada-pted to -engage Vapertures 19 f formedv iin vthe barrel' 14 to secure the barrel -against displacement, 4as

shown in Fig. 4. /Slidably -mounted withinthe rear'endof the barrel-14,and extendingfinto the channel' 17,v -is the plunger V20, having Aa substantiallyl rectangular 'cross section, -on the front end of -which is secureda :leather or-rubber 'cupi-21 adapted-to tightly conform to the vinner lperiphery of the barrel-14 to-effectan air-tight seal. The cup 21 is heidi positionJ 'by 4Washers 22 'and23.` Atvlthe Yopposite endl Aof the plunger -20- isriveted, asat`24, a-washer 25. Another washer26 is slidably mounted- V-on the-plunger f20. *Between* the Washersf23-and 25-is interposedthe'spring 27. Y

In the 4upper part of -thepis-tolhousing'andL in the same Jvertical planewit-h4 they Aplunger 120,' is positioned `-afdetent'flever 28 Whi'chhasits -f-ulcrum-ate'29. The detent 28 vis formed-With a-cam slot'130- and ay sharp head31-which is adaptedfto contact 'the linner surface of normally lock the -plunger 20. against' forward displacement.

vboss'esa `contact the upper-edge lof the vcam 'slot 30-causing the rrearend ofthe detent 28to be elevatedk into itslocking' position. A spring 136 is positionedin'the channel of the trigger l16 and the'f -lower portion" of the "pistol 'housing lc'zornprising the'handley-and is adapted to maintain" the trigger' in normally extended position, yas shown in'Fig. 1.

vvA very `novel methodicf cvfinal assembly is illustrated1iri1Figsf4f7fand:8. fCy-li-ndrical cups`f37- `and 38 are drawn-inwardlyo thestarnpings comprising the pistol'hous'ing. AfThe cu-p 37 has ahole`239 pierced in its centerlarge enough itc-'receive' a second drawn member 40 in the form of a` hollow rivet extending fromE the cupf38, which is fmally staked' into'perfmanent position as at141. InFigs. 'lazndf the same construction is embodied, using the outside diameter of the-cups' 32-and 29 as-'ffultpointsoor' the .triggerf 116 -and A:detent-"28,1 respectively. E'I'vhis highly #efficientyvvconstruction serves two purposes, rst, as a substitute for fastening rivets, and second, as fulcrum points as indicated.

A complete cycle of discharging the air pistol is hereinafter specifically described. When the pistol is in the position as indicated in Fig. 1, a pellet 42 is inserted into the barrel 14. When the trigger 16 is pulled, the .prongs 33 and 34 ,actuate the washer 26 and tend to compress the spring 27. Meanwhila'the plunger 2D and the Washer25 are prevented from traveling forward as the spring is being compressed because of the engagementv `:formed integral with said housing, a cam slot 1n of the end 31 of the detent lever 28 witheth'e washer 25. As the trigger is further depressed, the inturned bosses 35 ride up in the' cam slot l3l) gradually tending to lower lthe ,detent lever` 28. to the position as indicated in Fig. 2. At theinstant shown in Fig. 2, the spring 2'7has` been compressed to the maximum and the detent 28 is about to release the Ywasher 25, which is secured to the end of the plunger 2 0. It will be noted in Fig. 2 that atthe instant the plunger 20 is to be released `the trigger lhas not traveled the entire distance which itis adapted to travel, as shown in Fig. 3. It is the pressure exerted by theoperators hand onthe trigger during its travel from the point shown in Fig. 2 to the point shown in Fig. 3 which greatly adds to the eniciency ofmy improved pistol. It is apparent that` this secondary movement of thetrigger fromthe position shown in Fig. 2 to the position shown in Fig. 3 will carry forward .the plunger unit with all its elements a considerable distance towards the compression chamber, thereby superchargingthe air in thecompression chamber beforethe previously compressed spring 27 has an opportunity to exert its full impulse. This is particularly true if aquick movement is imparted to thetrigger.

After the plunger k20 is released by thehead 31k ofthe detent 28, theplunger assembly-is carried forwarduntil the washer 26 contacts the. end 43 -of the` barrel 14 which acts Aas a stop to the further movement ofjthe plunger unit. Thus having pro; duced a high compression in the barrel 14, the pellet 42 is Aswiftly ejected, accon'lpanied.by1 a sharp high-pitched report.

discharged, as indicated in Fig. 3, the spring 36 will ,automatically return the moving -parts to their original position, asshown vin Fig. `1.

lHavingdescribedmyinvention, what I and desire 'to secure by Letters Patent is: 1. yIn an air pistol having a barrel, breech and grip, a plunger unit slidablyr mounted in said barrel and breech, ,said plunger unit comprising a rodfhaving Van air-tight cup secured toits for Ward end, a compression springslidably mounted on saidgrod, @an annular` slidable abutment and guide member on saidrod lback of said spring and a fixed annular abutment andguide memy ber secured to the rear end of saidrod, adetent pivoted in said grip and arranged to contact saidl fixed' abutment and guide member, aV trigger,

pivoted in said grip, said trigger having an elon-A gated upwardly extending bi-furcated portion terminating in two arcuate heads adapted to ride between said annular abutment and guide members and means onsaid trigger for moving saidk detentiinto and out of Contact with said xed abutment member. ,Y y

2.fIn an air pistol having a barrel,l breech mechanism and housing for said breech mechanism, a plunger unit slidablymounted in said barrel, a detent pivoted at its forward'end on inturned bosses formed integral with said hous-fl ing, a cam slot in said detent, a trigger pivoted Aften the pistolVV is said detent, a trigger pivoted on inturned ele- `ments formed integral with said housing, said trigger having-antupwardly extending bi-furcated portion, with inturned elements formed integral therewith, said inturned elements being adapted to engage the lower edge of saidcam slot to release Vsaid detent` from lockingposition as the trigger is pressed andto engage the upper? edge of said cam slot to force saidV detentintolocking position when said trigger is released.

4. In an air pistol having a'barrel, breech and grip, a plunger slidably mounted in said barrel, a compressionV spring for actuating Isaid plunger, a detent pivoted at its forwardend in saidgrp, said detent having an angular head adapted to contact said plunger andlock it against forward displacement, a cam slotin said detent,a trigger pivoted in said grip, said trigger having elements thereon arrangedto engagesaidV cam slot and unlock said detent from said'plunger whensaid trigger is pressed, said triggerjhavingan elongated portion above the pivot arrangedv to, contact an abutment membernon.said plunger `and impart a forward impetus to said said detent is unlocked.

5. In an `air pistolhaving a barrel, breech and grip, a plunger unit Aslidably mounted in, said barrel and breech, saidlplungerlunit comprising arod having an` air tight cup lsecurer'gl to its fo r.v ward end, a compression spring slidably mounted on said rod, an annular abutmentmembersecured to the rear of said. rod, fa ydetent pivotedat its forward end in said grip,`said detenthaving an annular head arranged to contact said abut# ment member and lock said plungerr against for-A ward displacement, a cam slotgin said detent, element on said triggerarranged toengagesaid plunger after cam slot andY alternately unloclgandhlocl; 4said Y detent and saidplunger upongthe backward and forward movement of said trigger. f f, 6. In an air pistol having a barrel, breech and grip, a plunger slidably mounted `in said barrel, a compression spring vslidablymounted onl said plunger, a sli dable annularabutment and guide member on said plunger adapted, to contact Ithe rear end of said barreltollimit the forwarddis placement of said plunger, aflxed annularabut-f ment and gide member securedhtothegrear of said plunger, a detent end in said grip, sa id deterithavirig` an angular head adapted to contact ,said vrfixed abutment, member on saidl plunger to secure said plunger against forward displacement, -a. cam slot in said detent, a trigger pivoted in said grip, saidgtrigger,r having means thereon to engagensaid cam slot. in order-to lower and elevate said detent upon, the; movement of said trigger, said -triggerghavinggan upwardly extending elongated bi-furcatedpor-j tion terminating in two arcuate heads adaptedtoj ride ,between the aforesaid slidableand fixedv abutment members. g f v f ALFRED MORCHE.'.

pivoteaatfas forward;

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