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Publication numberUS1174840 A
Publication typeGrant
Publication dateMar 7, 1916
Filing dateApr 23, 1915
Priority dateApr 23, 1915
Publication numberUS 1174840 A, US 1174840A, US-A-1174840, US1174840 A, US1174840A
InventorsEarnest I Fisher
Original AssigneeEarnest I Fisher
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1174840 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



APPLlcAlou HLEuAPn. 23. 1915.

Patented Mar. 7, 1916.


sTATEs mnNEsr I. msm or'wnwoxa, oxLAHomA.

' GUN.

To all 'whom it may concern.' 1

Beit known that I', EAnNEsT I. FISHER, a

citizenl of the UnitedA States, residing at Wewoka, in the county of Seminole and State of Oklahoma, have invented certain .new and useful Improvements in Guns; and

I do hereby declare the-following to be a full, clear, vand exact description of the invention, suchas will enable others skilled in l0 the art to which,V it appertains to make and A use the same. v

` This 'invention relates to new and useful improvements in guns and the principle object of the.A inventlon is to provide a gun in lwhich gas is used in place of powder as the propelling means. for the projectle. v.

. Another object of the`invent1on is to proo vide a device which is electrically controlled by the pullin of a trigger.

A further o ject of the invention is to pro Y vide a magazine gun in which the charge is' compressed before it is fired yWith these and other objects in view', the invention consists in thenovel combination' and arrangement of parts which will be fully s et forth in thefoll'owing v specification vand accompanying drawings, in which A Figure-1 is a side view in elevation of a gun constructed in accordance with this in- ,30 vention. Fig. 2 is a fragmentaryside elevation of the stock on an enlarged scale. Fig. 3 is a longitudinal sectional view `through the stock.. Fig. 4 is a sectional view on line 4:--4 of Fig. 3. Fig. 5 is a detail i fragmentary side elevation of a portion of the gun showing the hammer and trigger arrangement, and Fig. 6 is a' sectional v1ew 4online 646 ofFig. 3.

Referring now to the drawings by char- 4-0 acters of reference, the numeral 1 deslgnates the gun barrel while the numeral 2 designates asan entirety the stock. This stock comprises the-body 3 having formed therein an opening Afor the reception of the tank 4 which is designed to hold the gasolene, gas

- lor other fuel for forming the charge. A suitable measuring cylinder 5 is connected tothe forward end'of the tank 4 and separated therefrom by the wall 6 having formed therein, an opening which is arranged to -be closed by the ,valve 7, which valve 1s spring pressed as at 8 and is only actuated to draw -'the fuel from the tank into the measuring chamber.' This measuring chamber may also be known as a mixing chamber for the reason` Speciicationof Letters Patent.

l Patented Mar.=7, 1916.

application mea api-njas, 19'1'5. serial No. 23,408.'

that it is providedwith -al1 air inlet valve 9 through which air passes and this 'air may be mixed with the chargeas the same-is drawn urto the chamber'. Formed adjacent the opemng for the reception of the tank 4 1n the butt or stock of the gun isthe bore Y 10 for the reception ofthe metallic shell 11 in which the batteries are disposed. These batterles form the power source for the-spark forming means by which the gun is dis- 66 I l charged.

`- .Slidable in the chamber 5 is the piston 12 provided with the hollow piston rod 13, one-side of which is formed with a plurality of teeth 14 forminga rack..wfith which the A70 'Pinion 15 coperaces nfoperatns the' -Ps' ton 12. This pinion is connected to the le'- ver 16 and is mounted to revolve on the shaft 17 as clearly shown in-Fig. 3.' Carried by the forward end of the hollow piston rod 76 13 is the compression piston 18 and closing the-end of the rod isl the spring pressed valve 19 which is normallyl closed.

' The piston' 18 is pperable in the compression chamber 20 which -terminates at its 80 forward end in the vreduced neck 21 which communicateswith the interior `22 of the barrel-1 ofthe gun. A suitable magazine opening 23. is provided and communicates with the barrel to feed the shot 211 thereinto and form a closure for the forward endA of the compression chamber 20 as clearly shown in Fig. 3. These shot are lfed upwardly into the barrel by means of the' sprng- 25 and the opening through which 9 0 they pass into the barrel is closed by the slide 26 part of which is shown in cross section and full line in Fig. 3 and is operated v by the manually controlled magazine feeder 27. The ball or shot 24 after being forced 95 up through theA opening is frictionally held over said opening when engagingthe upper innerA wall ofthe barrel and forming an air-tight compression chamber.

plate 32 and spring 33 from the batteries 341,-the' opposite terminals of which bear against the plug 35 which is threaded into theopen end of the cylinder 11. A suitable wire 36 is connected Atothe cylinder and 110 chamber 20 and force the. same into the is provided with the offset portion 43 so 'that the hammer and trigger will come in oifset portion passes through the cable 37 to the sparking contact 38, and theV opposite wire inthe cable designated by the numeral 39 is connected to the coperating contact 40 and to the terminal of the primary of the spark coil opposite the one to whichthe wire'31 is connected. v

. In order to provide a means for firing the gun uponpulling the trigger, the hammer-41 ispivoted as at 42 to .the stock and proper position -with relation to the stock 'of the gun.

The trigger is designatedby the numeral. 43.aiid is, carried at the lower end of the offset portion. Inorder to hold the ham.

mer. 41 normally out of engagement with the contact 38, the 4sp 44 is provided and is secured as at 45 tot e stock and held in engagement with the lower end of the ly meansof the pins 46. When it is'v esired to use the gun, the magazine controlling slide 27 is 'operated to'allowone of `the shots 24 to pass into the barrel. The .lever. 16 is then thrown downwardl into the position illustrated in `trated in Fig. 2, it will Fig. 2 an it -will be apparent that the plunger 12 will .slide rearwardly ,thus

forcing the 'gas lwithin the" chamber 5 through the hollow piston rofd 13 and into the chamber 20. Upon swinging the lever 16 back into its normal ositonas illusapparent that the plunger 18 will compress thdgas in the reduced neck 21 and against the ball -or shot 24, lwhich is ositioned within. the barrel'.

This action will. simultaneously draw additional gas through the valve 7 and. into the chamber 5 bythe movement of the plunger 12,; thereby mixing the gas with the air entering through the valve 9 and preparing azsecond charge. Upon -pulling the trigger .43, it will be aplparent that the hammer will contact with t e contact plates38 and 40,

l'thereby allowing the current to--iow from .the battery'througli the wire the con-V tact. 40, thence back through the contact 38 -to the wire 39 and'to the primary winding of the spark coilV 30, the current passing through. the .wire .31 and'. plates 321 and -spring 33 back to the battery. It will thus "jected through. the barrel.

be seen that the circuit will be complete through the primary .of the induction coil,

therebyex'citing the secondary and'causing the current to flow through .the wires contained within the cable 29 to .the sparkingV points 28-'across which a spark 'umps, thus firing a charge within the cham "r-'orfneok 21 and causing lthe.A ball or shot 24 'to be pro` Up'oii again manipulating the fmagazine controlling member, it

ill be apparent that the gas" 'i can again placed in 'condition to jbe' barrel and stock thereof, of means for holding a shot in said barrel, means for supplying the barrel with a charge of explosive gas or other fluid, mechanism movable within the stock of the gun for compressing the charge between it and the shot, and means 'for exploding the charge.

2. In a5 gun, the Combination with la bar-v rel and stock thereof, of a magazine secured in the under surface of said barrel, and

means for forcing shot out of the magazine -I into the innerend of the barrel and fric-V tionally holding the same therein, and means for supplying the barrel with a charge' of explosive mixture, a piston opervating inf the stock of said barrel, means whereby said mixture will be compressedbetween one end of the piston head and the shot, and means for exploding the saine.

3. In a gas gun, the combination with a barrel and stock `-thereof, of a 'tank posi-- tioned in the stock of said gun, batteries arranged in said stock above -said tank, said batteries being connected in circuit with a trigger-and sparking points, a mixing or vmeasuring chamber arranged at the forward end of said tank, a valve connecting the chamber with the tank, a hollow piston rod, piston heads onsaid piston rod, one end of said piston rod positioned in the measuring tank, the opposite end disposed withinaI compression chamber.. means -for frictionallyholdin the shot in the innerl end of the bore ofthe arrel, said shot closingthe end of a barrel and enabling the pisioo ten head to compress the air inthe compression chamber, and -u-pon operation of thev vtrigger the charge` will be exploded.

of' thecharacter described in.-

4. A gun A cluding a barrel'and'a stock, the stock bemg formed with an Vopening a fuel tankv within the opening, a mixing chamber connected to the fuel tankand arranged to produce an explosive mixture when the uelf from the tank is admitted and mixed with air, a compression and explosion chanler in the stock near the point where it jo s the barrel, saidexplsion chamber commiinicatf ing with the barrel, a shot in the rear end of the barrel forming the front wall of the' explosion chamber, a piston operabie' in the mixin chamber, a piston operable in the explosionchamb'er to compress the chaijge ian- 11,174,840 l l i 8 f and a hollow piston rod connecting the piston to provide a passage for the gas from the mixing chamber into the explosion chamber, and means to ignite the mixture in the explosion chamber after the same has been compressed. 5. A gun of the character described 'including a barrel and a stock, a fuel chamber within the stock, a mixing chamber communicating with the fuel chamber and mixing air with the fuel, a piston slidable in the mixing'chamber, a hollow piston rod connected to the piston, a compression chamber, an explosion chamber communicating with the compression-chamber and with the barrel, a shot in the barrel forming the front wall of\ the explosion chamber, a piston operable in the compression chamber, said piston being operated by the hollow piston rod, means to move both pistons simultaneously, a magazine to feed the bullets into Witnesses: C. H. PAMUNTEB,



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2947221 *Dec 10, 1956Aug 2, 1960Olin MathiesonCompression ignition gun
US3255669 *Mar 5, 1965Jun 14, 1966Marenius Olofsson SigfridGas-operated firearm
US3455202 *Jan 25, 1968Jul 15, 1969Olin MathiesonLiquid propellant-actuated device
US3800657 *Jan 7, 1971Apr 2, 1974Pulsepower SystemsModular liquid propellant gun
US8341868Jan 1, 2013Nisim ZusmanStock for a small arms weapon
US8782941Jun 30, 2011Jul 22, 2014Nisim ZusmanStock for a small arms weapon
US8978284Jan 13, 2014Mar 17, 2015Nisim ZusmanStock and vibration isolator for a small arms weapon
USD697162Aug 5, 2012Jan 7, 2014Sagi FaiferGun stock
USD738981Dec 30, 2013Sep 15, 2015Nisim ZusmanGun stock
USD745622May 15, 2014Dec 15, 2015Nisim ZusmanGun stock
USD747427Jul 15, 2014Jan 12, 2016Nisim ZusmanGun stock with accessory rail
USD748216Jul 15, 2014Jan 26, 2016Nisim ZusmanGun stock
U.S. Classification42/106, 42/84, 89/7
Cooperative ClassificationF41A21/08