US2191648A - Recoil absorber for firearms - Google Patents

Recoil absorber for firearms Download PDF

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Publication number
US2191648A
US2191648A US156226A US15622637A US2191648A US 2191648 A US2191648 A US 2191648A US 156226 A US156226 A US 156226A US 15622637 A US15622637 A US 15622637A US 2191648 A US2191648 A US 2191648A
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United States
Prior art keywords
barrel
cup
nozzles
ribs
arm
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Expired - Lifetime
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US156226A
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English (en)
Inventor
Galliot Norbert Jules Andre
Chable Jeanne Adrienne Vi Anna
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/36—Muzzle attachments or glands for recoil reduction ; Stabilisators; Compensators, e.g. for muzzle climb prevention

Definitions

  • ' Ihe present invention relates to muzzle brakes or recoil absorbers for firearms, of the type including one or several convergent divergent nozzles, xed to the end of the barrel of the arm, coaxially therewith, and intended to increase the kinetic energy of theV gases, which are subsequently deviated and discharged outwardly by means of a stationary system of blades, either simple or multiple, produced by the revolution, about the longitudinal axis of the arm, of one or several arcs of curves having their concavity turned toward the rear of. the arm.
  • the energy ofthe gases which react against this system of blades is utilizedvfor exerting a tractive force in a direction opposed to that of the'force producing the recoil of the arm.
  • This deflecting device is constituted by rings forming small truste-conical cups having ⁇ the large base located on the side of the front end f the arm and the cups are located one behind the other about the axis of the barrel of the arm.
  • the present invention relates to the mounting .of these cup-shaped rings.
  • the various cup-shaped elements are rigid with one another so that their relative arrangement cannot be varied.
  • the essential feature of the present invention consists in making these cup-shaped elements in the form of individual rings slipped behind one another around the barrel of the firearm, with spacing means interposed between two consecu-y tive rings for keeping the desired intervals be ⁇ tween the successive rings, and means for holding all these elements applied against one another.
  • these rings are supported by ribs formed both on ⁇ the outer surface of a sleeve tted on the barrel' and on the outer surface of the first nozzle.
  • each of the cup-shaped rings is provided, on its back face, with a removable spacing piece, constituting the spacing means above mentioned,
  • Fig. 1 is an external view, partly in axial longitudinal section, of the barrel of a firearm fitted with the recoil absorber according to the present invention
  • Fig. 2 is av separate view of a ribbed sleeve,y fitted upon the barrel, said sleeve being shown in cross section on the line 2 2 of Fig. 1;
  • Fig. 3 is a view on an enlarged scale of a detail of construction.
  • Fig. 4 is a diagrammatical View explaining the operation oi the recoil absorber.
  • reference character a designates the barrel of the firearm; b is a convergentdivergent nozzle screwed to the front end of the barrel;' c and d are two other convergent-divergent nozzles, mounted ahead of the first one b and xed to the envelope e as it will be hereinafter explained; f designates an inward flange, located ahead of the third nozzle d and provided with a ribbed cylindrical axial conduit f1 for the passage'of the projectile; b1, c1, d1 designate annular conduits or grooves, generated by the revolution, aboutl the longitudinal axis xof the arm, of the curved profile of the rear face c2, d2, f2, turned toward the arm, of nozzles c and d and flange j, respectively.
  • conduits or blades b1, c1, d1 constitute, so to speak, stationary blades.
  • Nozzles b, c, d are rifled, in such manner as to impart to the gases passing through said nozzles, a rotary movement about the axis thereof.
  • the helical partitions or fins b3, c3, d3 of nozzles b, c, d which correspond to the rifiing of these nozzles, have a pitch in the same direction as that yof the rifling of the bore of the barrel, and this pitch preferably varies in a gradual manner.
  • the pitch of the partitions b3 of nozzle b is slightly smaller than that of the riings of the bore of the barrel.
  • the pitch of the partitions c3 is smaller than that of the partitions b3, and the pitch of the partitions d3 is still smaller than that of the partitions c3 of the second nozzle c.
  • the rear part of envelope or casing e is provided with screw threads in its inner wall, adapted to engage corresponding screw threads provided on the outer edges of the ribs or partitions h of the rst nozzle b.
  • nozzles c and d are each made of twoy parts screwed in each other, to wit an external part integral with casing e through partitions z' and y', and an internal part forming the nozzle proper,
  • These partitions h, z', 7' have a pitch depending upon the pitch of the riflings of the bore ofthe barrel, in such manner as to give the minimum resistance to the helical movement of the gaseous streams leaving the recoil absorber andto maintain itand even accelerate it, if possible. But ⁇ this pitchl of the partitions is opposed tothat of the rifllngsof the bore.
  • the envelopefe of the recoil absorber may, ⁇ as shown by the drawing, beV provided withy a plurality of small ports e1,suitably inclined, through which a portion of the gases issuing from the blade systems b1, c1, dlis discharged into the atmosphere.
  • the gaseous streams leaving the recoil absorber pass along deep helical partitions or ribs lclpro,-
  • thissleeve is made of a light alloy of high thermic conductivity and the thermic expansion of which approximates that of the metal of the barrel, for instance an aluminium alloy containing a high percentage of silicon.
  • These helical partitions or ribs have a pitch opposed to that of the riflingsof the barrel bore, and are shorter at the. origin, that is'to say at the front. Preferably, this pitchvaries gradually, being shorter toward the rear.
  • These helical partitions or ribs maintain and accelerate themovement of rotation of the gaseous streams about the axis :vof the arm. Underithe influence of the centrifugal force whichresults therefrom, these gaseous -strearnsaredriven away from theirinitial path and move in a direction substantially transverse to the. axis :v -:cof the arm.
  • cup-shaped elements which are small andI numerous, are merely slipped, behind one another, about the barrelof the arm, on the ribs k1 of sleeve lc, They are kept in position'in the following manner.
  • This abutment piece m is provided witha recess m1 which constitutes an expansion chainber for the gases.
  • each cup-shaped element On the periphery of the back face of each cup-shaped element, from place to place, aresecured, in-a removable manner, through screws Z1, blade-shaped pieces Z2, against which bearsthe next cup-shaped element, in such manner as to provide the desired spacing between the cupshaped elements.
  • this arrangement it is possible easily to adjust this interval between the cup-shaped elements, either by replacing these spacing blades Z by others of a dilerentsize and profile, or, more simply, by iiling off the spacing parts so as to obtain the desired spacing of the cup-shaped elements, according to the kind of arm that is employed, its bore and various other conditions.
  • These spacing blades Z may be disposed parallel to the axis of the arm or in a helical arrangement.
  • cup-shapedr elements are preferably given, as shown, a lens-shaped transverse section.
  • the operation is the following.
  • the cup-shaped elements- Z ⁇ are spacedA apart fromv one another a distanceV such that a portion of the gaseous stream, vprojected rat @behind the rear edge ofa cup-shaped'- element, meets another portion of this gaseousv stream, projected at u against the internal faceu ofthe next cup-shaped element, which deviates this portion of the gaseous stream.
  • This meeting of the gaseous streams produces eddies in the gases.
  • This second portion of thegaseous stream drives the first portion towardthe front part of thegarmf.
  • the gases, leavingy thev recoil absorber, arethus:
  • The. construction above, ⁇ described permits av very easy and economical assembly,- adjustment, and disassembly.
  • the structure is very strong. In order to take-it to pieces, itsuices to unscrew the envelope or casing (which carries nozzles cand d) from the partitions or ribs ⁇ h of the iirst nozzle b, and rings Z can then bev removed by merelycausingthemto slide along the ribs-k1l of sleeve k.
  • the cup-shaped elements can be kept in position on sleeve lc in any suitable manner otherthan that shown, for instance byscrewing on an external system of threads provided on the ribs k1 of sleeve 7c.
  • the adjustable spacing betweenthe cup-shaped elements can also be obtainedin any suitable manner.
  • the cup-shapedvelements can also bel maintained in position by a slight conicity. of the ribsklof sleeve k, the sizes ⁇ of'the aperturesv in-the cup-shaped members then varying from onecup-shaped elementto the next one;
  • TheY ribs lcll which support thepcup-shapedelements l, instead ofv being provided on a sleeve fixed to thebarreI'a of the arm, might'be formed ⁇ directly on said barrel. Instead of being helical, these ribs 13,1 might be-parallel to the longitudinal axis of the arm.
  • the pitch of the ribs -must be thelonger as the length of the apparatus is greater. Therefore, this pitch can be innitely great under certain-circumstances.
  • a recoil absorber which comprises, in combination, at least two convergent divergent nozzles fused in series to the end of said barrel coaxially therewith, a system of blades carried by said nozzles for deflecting the gases issuing from said barrel into a rearward direction and rotating them about the axis of said barrel, a plurality of truste-conical rings each having its large base turned toward the 'front of the iirearm mounted around the axis of said barrel at the rear of said nozzles so as to be struck by the gases thus delected rearwardly, said rings being individually slipped around said barrel, and means for keeping said rings in position.
  • a recoil absorber which comprises, in combination at leasttwo convergent divergent nozzles fixed in series to the front end of said barrel coaxially therewith, a system of blades carried by said nozzles for defiecting the gases issuing from said barrel into a.
  • a recoil absorber which comprises, in combination, at least two convergent divergent nozzles xed in series to the front end of said barrel coaxially therewith, a tubular casing surrounding said nozzles, deiiecting surfaces carried by the second nozzle and the front end of said casing for deiiecting the gases issuing from the first nozzle into a rearward direction, blades carried by said nozzles, forming helical ribs between the outer peripheries of said nozzles and said casing, for rotating these deflected gases around the axis of said barrel, a sleeve tted on the front end of said barrel, including ribs prolonging the first mentioned ribs, a plurality of frusto-conical rings each having its large base turned toward the front of the firearm individually slipped on said ribs at the rear of said casing, so as to be struck by the rearwardly deflected gases, spacing members carried
  • a recoil absorber according to claim 3 in which each of said spacing members is removably carried by the corresponding ring.
  • each of said spacing members is removably carried by the back side of the corresponding ring.
  • each of said rings has in axial section the shape of a biconvex lens.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US156226A 1936-08-03 1937-07-28 Recoil absorber for firearms Expired - Lifetime US2191648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH482248X 1936-08-03

Publications (1)

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US2191648A true US2191648A (en) 1940-02-27

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ID=4516345

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US156226A Expired - Lifetime US2191648A (en) 1936-08-03 1937-07-28 Recoil absorber for firearms

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US (1) US2191648A (en:Method)
BE (1) BE422799A (en:Method)
CH (1) CH191263A (en:Method)
FR (1) FR824869A (en:Method)
GB (1) GB482248A (en:Method)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451514A (en) * 1945-11-21 1948-10-19 James E Sieg Compensator for guns
US4942801A (en) * 1989-03-10 1990-07-24 Wil Schuemann Firearm gun rise and muzzle jump reducer
US5123328A (en) * 1989-03-10 1992-06-23 Wil Schuemann Firearm barrel with nozzles
US20180120045A1 (en) * 2015-05-08 2018-05-03 Bernt Erik Röst Device for Reducing Noise, Muzzle Flash and Recoil of a Firearm
US20210396485A1 (en) * 2020-06-18 2021-12-23 Austin Reis-Green Firearm sound suppressor baffles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2413154C1 (ru) * 2009-08-31 2011-02-27 Николай Дмитриевич Дронов-Дувалджи Способ уменьшения отдачи оружия и эжекторное устройство для его осуществления

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451514A (en) * 1945-11-21 1948-10-19 James E Sieg Compensator for guns
US4942801A (en) * 1989-03-10 1990-07-24 Wil Schuemann Firearm gun rise and muzzle jump reducer
US5123328A (en) * 1989-03-10 1992-06-23 Wil Schuemann Firearm barrel with nozzles
US20180120045A1 (en) * 2015-05-08 2018-05-03 Bernt Erik Röst Device for Reducing Noise, Muzzle Flash and Recoil of a Firearm
US20210396485A1 (en) * 2020-06-18 2021-12-23 Austin Reis-Green Firearm sound suppressor baffles
US11561059B2 (en) * 2020-06-18 2023-01-24 Austin Reis-Green Firearm sound suppressor baffles

Also Published As

Publication number Publication date
BE422799A (en:Method)
CH191263A (fr) 1937-06-15
FR824869A (fr) 1938-02-17
GB482248A (en) 1938-03-25

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