US1846993A - Automatic firearm with gas extraction - Google Patents

Automatic firearm with gas extraction Download PDF

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Publication number
US1846993A
US1846993A US514286A US51428631A US1846993A US 1846993 A US1846993 A US 1846993A US 514286 A US514286 A US 514286A US 51428631 A US51428631 A US 51428631A US 1846993 A US1846993 A US 1846993A
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US
United States
Prior art keywords
gases
cylinder
piston
passage
barrel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US514286A
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English (en)
Inventor
Destree Joseph
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Individual
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Individual
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Publication of US1846993A publication Critical patent/US1846993A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G5/00—Elevating or traversing control systems for guns
    • F41G5/04—Elevating or traversing control systems for guns using hydraulic means for remote control
    • 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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel

Definitions

  • This invention relates especially to an automatic firearm with gas extraction, in which the automatic mechanism is driven by a piston which moves in a cylinder in the opposite direction to the motion of the projectile under the action of the gases, called motive gases, which act on one of its sides, whereas the gases, called braking gases act on the opposite side in order to brake the above mentioned motion of the piston.
  • This arrangement has the disadvantage of causing complicated tooling and diiicult cleaning of said passages, considerable spacel and serious weight.
  • This invention has for its obj ect to remove these disadvantages.
  • the passage by which the braking gases are admitted to the cylinder opens into the barrel of the firearm nearer to the breechblock than the passage by which the motive gases are admitted to the cylinder.
  • this arrangement allows the firearm to be used, although the braking gases are admitted to the cylinder before the motive gases.
  • the invention provides a small cross section for the passage by which the braking gases pass from the barrel into the cylinder.
  • the amount of gas taken from 514,286, and in Belgium February 24, 1930.
  • the invention further provides a larger cross section for the passage by which the motive gases pass from the barrel into the cylinder, than that for the passage by which the braking gases pass.
  • the invention also provides the arrangement of a device, known in itself, in the braking chamber, to guide the gases towards the piston. In this manner the braking gases act upon the piston by a shock.
  • This shock action is however compensated, according to the invention, by the simultaneous arrangement in the motive chamber, of a device to direct the gases on the piston.
  • the invention provides that said opening be outside of the path of the braking gases directed towards the piston by the above mentioned device.
  • This drawing is a view in longitudinal section of part of firearm according to the invention.
  • FIG. 1 It shows a barrel 2 whose breech-block 2a is actuated automatically by the gases which expel the projectile after the explosion.
  • the inside of the barrel 2 communicates with a cylinder 4 by the passages 5 and 6.
  • a piston 7 is arranged, which by means of a mechanical connection actuates the breech-block 2a.
  • This connexion is of the known type in which the opening of the breech-block and the ejection of the cartridge case are effected during the first movement of the piston 7 under the influence of the gases which expel the projectile, whereas the placing of a fresh cartridge and the closing of the breech-block are effected after said first movement by the influence of springs such as 8.
  • the piston 7 must therefore, as Shown, be stationary at the end of the cylinder 4 opposite to the end near the breechblock, in order that under the influence of the gases, it is moved in the direction of the arrow X, i. e.; in the opposite direction to the projectile.
  • the gases which cause this movement are admitted into the motive chamber 4a on to the side 7a of the piston by the passage G, whereas the gases which brake the movement produced in the direction of the arrow X, the so called braking gases, are admitted into the braking chamber 4b on to the side 7b of the piston, opposite to the side 7a, by the passage 5.
  • This latter opens into the barrel 2 nearer to the breech-block 2a than the passage 6 traversed by the motive gases.
  • the braking passage 5 has a small cross section.
  • the passage 6 for the motive gases has a larger cross section than that of the braking passage 5.
  • the braking gases, on entering into the braking chamber 4b are directed towards the side 7b of the piston 7 by means of a projection 4d arranged in said chamber, whereas the motive gases on entering the motive chamber 4a are directed towards the side 7 a of the piston 7 by a projection 4f arranged in the latter chamber.
  • the braking chamber 45 communicates with the atmosphere by an opening 4g arranged in the wall of said chamber near the projection 4d, but on the opposite side to that where the braking passage 5 opens into the braking chamber.
  • This opening 4g is thus arranged outside of the path followed ⁇ by the gases when they are directed towards the side 7b by means of the projection 4d.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical connection between the piston and the breech-block for directly connecting these two elements, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the end of the barrel, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the breech-block, the last passage opening into the barrel nearer to the breech-block than the first passage, and means for reducing the action of the braking gases relatively to the action of the motive gases.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical connection between the piston and the breech-block for directly connecting these two elements, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the end of the barrel, and a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the breech-block, the last passage opening into the barrel nearer to the breechblock than the first passage and being of small cross section relatively to that of the interior of the barrel.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical connection between the piston and the breech-block for directly connecting these two elements, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the end of the barrel, and a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the breech block, the last passage opening into the barrel nearer to the breech-block than the first passage and being of smaller cross-section than that of the first passage.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical -connection between the piston and the breech-block for directly connecting these two elements, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the end of the barrel, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the breech-block, the last passage opening into the barrel nearer to the breech-block than the first passage and being of smaller cross section than that of the first passage, and a device in the cylinder for directing the gases towards the face of the piston nearest to the breech-block.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical connection between the piston and the breech-block for directly connecting these two elements, a passage between s the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearestJ to the end of the barrel, a passage between the barrel and the cylinder for conducting the projectile expelling w gases on the face of the piston nearest to the breech-block, the last passage opening into the barrel nearer to the breech-block than the first passage and being of smaller cross section than that of the first passage, a device in the cylinder for directing the gases towards the face of the piston nearest to the breech-block, and a device in the cylinder for directing the gases towards the opposite face of the piston.
  • An automatic firearm comprising a fixed barrel, a cylinder, a piston in this cylinder, a mechanical connection between the piston and the breech-block for directly connecting these two elements, a passage between the barrel and the cylinder for conducting the projectile expelling gases on the face of the piston nearest to the end of the barrel, a.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Circuit Breakers (AREA)
US514286A 1930-02-24 1931-02-07 Automatic firearm with gas extraction Expired - Lifetime US1846993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE555761X 1930-02-24

Publications (1)

Publication Number Publication Date
US1846993A true US1846993A (en) 1932-02-23

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ID=3872542

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US514286A Expired - Lifetime US1846993A (en) 1930-02-24 1931-02-07 Automatic firearm with gas extraction

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US (1) US1846993A (US06262066-20010717-C00315.png)
BE (1) BE368020A (US06262066-20010717-C00315.png)
CH (1) CH152923A (US06262066-20010717-C00315.png)
DE (1) DE555761C (US06262066-20010717-C00315.png)
FR (1) FR691064A (US06262066-20010717-C00315.png)
GB (1) GB355170A (US06262066-20010717-C00315.png)
NL (1) NL31777C (US06262066-20010717-C00315.png)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777366A (en) * 1953-04-22 1957-01-15 Loren C Cook Gas system for firearms
WO1999047877A1 (en) * 1998-03-18 1999-09-23 Tsai, Artur Device of automatic breech-block unlocking (variants)
US6382073B1 (en) * 1999-12-10 2002-05-07 Fabbrica D'armi P. Beretta S.P.A. Gas operated shotgun
US20100000139A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a debris shield
US20100000138A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having an expulsion device
US20100000400A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having an indirect gas impingement system
US20100000396A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8176837B1 (en) 2009-10-11 2012-05-15 Jason Stewart Jackson Firearm operating rod
US8393107B2 (en) 2008-08-26 2013-03-12 Adcor Industries, Inc. Firearm assembly including a first weapon and a second weapon selectively mounted to the first weapon
US8640598B1 (en) 2010-07-19 2014-02-04 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
US8899138B2 (en) 2011-09-08 2014-12-02 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8950313B2 (en) * 2013-01-04 2015-02-10 Ra Brands, L.L.C. Self regulating gas system for suppressed weapons
US8997620B2 (en) 2012-03-09 2015-04-07 Adcor Industries, Inc. Handle assembly for charging a direct gas impingement firearm
US9003686B2 (en) 2012-02-13 2015-04-14 Adcor Industries, Inc. Hand guard mounting mechanism
US9261314B1 (en) 2010-07-19 2016-02-16 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
US9303932B1 (en) * 2014-11-06 2016-04-05 The United States Of America As Represented By The Secretary Of The Army Firearm with both gas delayed and stroke piston action
US9500423B2 (en) 2014-01-24 2016-11-22 Ra Brands, L.L.C. Method and mechanism for automatic regulation of gas flow when mounting a suppressor to a firearm

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1042954B (it) * 1975-09-29 1980-01-30 Eranchi Spa Luigi Dispositivo azionato a gas per il comando dei mecchanismi di ricari ca di un fucile automatico a presa di gas

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777366A (en) * 1953-04-22 1957-01-15 Loren C Cook Gas system for firearms
WO1999047877A1 (en) * 1998-03-18 1999-09-23 Tsai, Artur Device of automatic breech-block unlocking (variants)
US6382073B1 (en) * 1999-12-10 2002-05-07 Fabbrica D'armi P. Beretta S.P.A. Gas operated shotgun
US8156854B2 (en) 2008-07-01 2012-04-17 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US8210090B2 (en) 2008-07-01 2012-07-03 Adcor Industries, Inc. Firearm having an expulsion device
US20100000400A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having an indirect gas impingement system
US20100000396A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US20110067285A1 (en) * 2008-07-01 2011-03-24 Adcor Industries, Inc. Firearm having a debris shield for use with a direct gas impingement system
US7937870B2 (en) 2008-07-01 2011-05-10 Adcor Industries, Inc. Firearm having a debris shield for use with a direct gas impingement system
US8141285B2 (en) 2008-07-01 2012-03-27 Adcor Industries, Inc. Firearm including improved hand guard
US20140224103A1 (en) * 2008-07-01 2014-08-14 Adcor Industries, Inc. Firearm Having A Handle Assembly For Charging And Forward Assist
US9134082B2 (en) 2008-07-01 2015-09-15 Adcor Industries, Inc. Firearm having an indirect gas impingement system
US20100000138A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having an expulsion device
US8210089B2 (en) 2008-07-01 2012-07-03 Adcor Industries, Inc. Firearm having an indirect gas impingement system
US8393103B2 (en) 2008-07-01 2013-03-12 Adcor Industries, Inc. Firearm having a debris shield
US8393102B2 (en) 2008-07-01 2013-03-12 Adcor Industries, Inc. Magazine repair system for firearm
US20100000139A1 (en) * 2008-07-01 2010-01-07 Adcor Industries, Inc. Firearm having a debris shield
US8561335B2 (en) 2008-07-01 2013-10-22 Adcor Industries, Inc. Firearm including improved hand guard
US8561517B2 (en) 2008-07-01 2013-10-22 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US9109848B2 (en) * 2008-07-01 2015-08-18 Adcor Industries, Inc. Firearm having a handle assembly for charging
US8800192B2 (en) 2008-07-01 2014-08-12 Adcor Industries, Inc. Debris shield for a firearm
US8393107B2 (en) 2008-08-26 2013-03-12 Adcor Industries, Inc. Firearm assembly including a first weapon and a second weapon selectively mounted to the first weapon
US8176837B1 (en) 2009-10-11 2012-05-15 Jason Stewart Jackson Firearm operating rod
US8640598B1 (en) 2010-07-19 2014-02-04 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
US9261314B1 (en) 2010-07-19 2016-02-16 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
US8899138B2 (en) 2011-09-08 2014-12-02 Adcor Industries, Inc. Firearm having a handle assembly for charging and forward assist
US9003686B2 (en) 2012-02-13 2015-04-14 Adcor Industries, Inc. Hand guard mounting mechanism
US8997620B2 (en) 2012-03-09 2015-04-07 Adcor Industries, Inc. Handle assembly for charging a direct gas impingement firearm
US8950313B2 (en) * 2013-01-04 2015-02-10 Ra Brands, L.L.C. Self regulating gas system for suppressed weapons
US9328981B2 (en) 2013-01-04 2016-05-03 Ra Brands, L.L.C. Self regulating gas system for suppressed weapons
US9500423B2 (en) 2014-01-24 2016-11-22 Ra Brands, L.L.C. Method and mechanism for automatic regulation of gas flow when mounting a suppressor to a firearm
US9303932B1 (en) * 2014-11-06 2016-04-05 The United States Of America As Represented By The Secretary Of The Army Firearm with both gas delayed and stroke piston action

Also Published As

Publication number Publication date
BE368020A (US06262066-20010717-C00315.png)
NL31777C (US06262066-20010717-C00315.png)
DE555761C (de) 1932-07-27
GB355170A (en) 1931-08-20
CH152923A (fr) 1932-02-29
FR691064A (fr) 1930-10-01

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