US2494889A - Gas piston operated firearm - Google Patents
Gas piston operated firearm Download PDFInfo
- Publication number
- US2494889A US2494889A US8173A US817348A US2494889A US 2494889 A US2494889 A US 2494889A US 8173 A US8173 A US 8173A US 817348 A US817348 A US 817348A US 2494889 A US2494889 A US 2494889A
- Authority
- US
- United States
- Prior art keywords
- barrel
- breech
- firearm
- gas piston
- rods
- Prior art date
- 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
Links
Images
Classifications
-
- 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
- F41A5/22—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated having two or more gas pistons
Definitions
- the present invention relates to breech recoil operated firearms (this expression including both semi-automatic rearms, for which the gunner is to operate the trigger to iire every shot, and automatic rearms, firing by bursts, and of course firearms capable of working either semiautomatically or automatically) in which the energy necessary for actuating the breech is supplied by powder gases taken from the barrel of the arm and acting on reciprocating means for driving the breech rearwardly.
- the invention is more particularly applicable to small caliber firearms such as aircraft or anti-aircraft automatic guns, automatic or semi-automatic rifles, etc.
- the object of this invention is to provide a firearm of this kind which is better adapted to meet the requirements of practice than those existing up to this time.
- the movable breech system is actuated by means of at least one rodslidably guided in a bore provided in the mass of the firearm barrel, this rod having its rear end in ⁇ contact witha part of said breech system and its front end tted with a piston slidable in a cylinder and subjected to the action of the powder gases.
- Fig. 1 is a horizontal axial section of a portion of an automatic firearm according to the present invention
- Fig. 2 is a vertical axial section showing certain elements of the breech operating mechanism which are not visible on Fig. 1;
- Fig. 3 is a transverse section on the line III- III of Fig. 2.
- this firearm includes, in the usual manner, at least one barrel l provided at the rear with a breech casing or receiver 2 assembled therewith for instance through a bayonet joint and in which can slide, parallel to the barrel axis, a movable breech system 3 operated as it will be hereinafter described.
- the mechanism for operating breech system 3 includes at least one and preferably two reciproeating rods 4, preferably disposed symmetrically on either side of the axis of barrel i, each guided in a bore la provided in the mass of said barrel and subjected to the action of a return spring 5, the rear end of said rod acting directly on the Aero-Mecaniques S. A., a society of Switzerland 3, 1948, Serial No. 8,173
- rods 4 act directly upon the' 3, without interposition: of push-pieces, the functional plays are reduced by said rods 4.
- rods 4 it will be of interest slightly to incline rods 4 in the transverse direction so that they converge toward the rear and can thus act directly upon the movable breech system. Guiding of rods 4 then takes place along the rear portions of these rods.
- each of them may be tted with shock absorbing means constituted, for instance, by a plurality of superposed elastic washers H interposed between the rear face o-f piston B and the front end of a sliding sleeve l2 bearing, through its other end, against return spring 5.
- f3.rAA breech recoil operated-mecum which comprises;v inycombination; abarrelpv a breechr casing atufthefi'reareend.. oirK fsaid fbarrel; af reciprocating 'breeclmsystemguidedfin said breech casing, said ba-nrelheing ⁇ provided .with twolongitudinal-'boresA extending in the horizontal plane passingthrough the-axisfofesa-breech systenn symmetrically on eithlenside of theaxis4 ofwsaidV barrel," a Yrod.-having at'fleastffitsf manfportionl;l guided-in each ⁇ ofA said bores-.1 and itssrear end ⁇ Yin contact-with the-front? communication with the'iinside.
- a firearm according to claim 2 in whic said 5xbarrel-"isiprovided with a single outlet po t in ,communicatlonmithjhe front parts of bo of ⁇ saidgcyliderslfori'feeding powder gases thereto.
- -fGalbreech'rrecoilppperated rearm which comprises, in combination, a barrel, a breech casing 'gat'therearieridibfwsaid barrel, a reciprocating --b're'elrisy'stem guided in said breech casing, said 'f fbarrelabeing provided with two longitudinal bores extending symmetricallyr on either side of the axisathereoga rod.having Aatleast.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU281166X | 1947-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2494889A true US2494889A (en) | 1950-01-17 |
Family
ID=19732473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US8173A Expired - Lifetime US2494889A (en) | 1947-03-08 | 1948-02-13 | Gas piston operated firearm |
Country Status (7)
Country | Link |
---|---|
US (1) | US2494889A (xx) |
BE (1) | BE480352A (xx) |
CH (1) | CH281166A (xx) |
DE (1) | DE867368C (xx) |
FR (1) | FR961368A (xx) |
GB (1) | GB634767A (xx) |
LU (1) | LU28362A1 (xx) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720820A (en) * | 1950-06-02 | 1955-10-18 | Paul H Dixon | Hydraulic breech operating mechanism |
US2775920A (en) * | 1950-05-01 | 1957-01-01 | Paul H Dixon | Bolt spline |
US2783685A (en) * | 1951-03-02 | 1957-03-05 | Samuel G Green | Regulating plug for gas operated firearm |
US2811902A (en) * | 1952-01-18 | 1957-11-05 | Paul H Dixon | Mechanical bolt unlocking mechanism for recoiling barrel guns |
US3611872A (en) * | 1969-06-02 | 1971-10-12 | Dale M Davis | Lightweight compact rifle |
FR2370946A1 (fr) * | 1976-11-16 | 1978-06-09 | Kawaguchiya Firearms | Dispositif entraine par gaz pour fusil mitrailleur automatique |
US4102242A (en) * | 1975-08-04 | 1978-07-25 | O. F. Mossberg & Sons, Inc. | Autoloading gas-operated firearm |
US4418608A (en) * | 1980-03-22 | 1983-12-06 | Rheinmetall Gmbh | Arrangement for pre-selecting the cadence of firing bursts of a pressurized gas loader of a gun |
US5959234A (en) * | 1997-01-31 | 1999-09-28 | Benelli Armi S.P.A. | Gas-operated automatic firearm, particularly a shotgun |
US20130036900A1 (en) * | 2011-08-08 | 2013-02-14 | Stephen Mark Mueller | Recoil Apparatus for Firearm |
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 |
US10578381B2 (en) * | 2018-01-22 | 2020-03-03 | American Tactical, Inc. | Upper receiver for modular shotgun |
US11125516B2 (en) * | 2018-01-22 | 2021-09-21 | American Tactical, Inc. | Upper receiver for modular shotgun |
US20220333884A1 (en) * | 2021-04-17 | 2022-10-20 | Jordan Kristomas Kennedy | System for a delayed-opposed-piston gas action assembly |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL94793C (xx) * | 1953-07-27 | |||
US4269109A (en) * | 1979-03-27 | 1981-05-26 | Ares, Inc. | Open-framework receiver automatic cannon |
DE3046343C2 (de) * | 1980-12-09 | 1983-01-20 | Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf | Verschluß für automatische Feuerwaffen |
DE19805752A1 (de) * | 1998-02-13 | 1999-08-19 | Schmid | Schußwaffe, insbesondere Gewehr |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US960825A (en) * | 1908-07-30 | 1910-06-07 | Giuseppe Colleoni | Automatic gun. |
US1066487A (en) * | 1910-05-14 | 1913-07-08 | Annibale Giletta | Firearm. |
US1387460A (en) * | 1918-12-11 | 1921-08-16 | William J Wilkinson | Block-action for repeating arms |
US2031305A (en) * | 1932-09-03 | 1936-02-18 | Sig Schweiz Industrieges | Automatic firearm |
US2196852A (en) * | 1937-04-13 | 1940-04-09 | Western Cartridge Co | Repeating firearm |
US2199871A (en) * | 1938-02-11 | 1940-05-07 | Birkigt Marc | Automatic firearm |
US2341780A (en) * | 1940-08-26 | 1944-02-15 | Timothy F Horan | Automatic firearm |
US2345736A (en) * | 1942-04-17 | 1944-04-04 | Eiane Halvor Olsen | Automatic gun mechanism |
-
0
- LU LU28362D patent/LU28362A1/xx unknown
- BE BE480352D patent/BE480352A/xx unknown
- FR FR961368D patent/FR961368A/fr not_active Expired
-
1948
- 1948-02-12 GB GB4182/48A patent/GB634767A/en not_active Expired
- 1948-02-13 CH CH281166D patent/CH281166A/fr unknown
- 1948-02-13 US US8173A patent/US2494889A/en not_active Expired - Lifetime
- 1948-12-25 DE DEP26864D patent/DE867368C/de not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US960825A (en) * | 1908-07-30 | 1910-06-07 | Giuseppe Colleoni | Automatic gun. |
US1066487A (en) * | 1910-05-14 | 1913-07-08 | Annibale Giletta | Firearm. |
US1387460A (en) * | 1918-12-11 | 1921-08-16 | William J Wilkinson | Block-action for repeating arms |
US2031305A (en) * | 1932-09-03 | 1936-02-18 | Sig Schweiz Industrieges | Automatic firearm |
US2196852A (en) * | 1937-04-13 | 1940-04-09 | Western Cartridge Co | Repeating firearm |
US2199871A (en) * | 1938-02-11 | 1940-05-07 | Birkigt Marc | Automatic firearm |
US2341780A (en) * | 1940-08-26 | 1944-02-15 | Timothy F Horan | Automatic firearm |
US2345736A (en) * | 1942-04-17 | 1944-04-04 | Eiane Halvor Olsen | Automatic gun mechanism |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2775920A (en) * | 1950-05-01 | 1957-01-01 | Paul H Dixon | Bolt spline |
US2720820A (en) * | 1950-06-02 | 1955-10-18 | Paul H Dixon | Hydraulic breech operating mechanism |
US2783685A (en) * | 1951-03-02 | 1957-03-05 | Samuel G Green | Regulating plug for gas operated firearm |
US2811902A (en) * | 1952-01-18 | 1957-11-05 | Paul H Dixon | Mechanical bolt unlocking mechanism for recoiling barrel guns |
US3611872A (en) * | 1969-06-02 | 1971-10-12 | Dale M Davis | Lightweight compact rifle |
US4102242A (en) * | 1975-08-04 | 1978-07-25 | O. F. Mossberg & Sons, Inc. | Autoloading gas-operated firearm |
FR2370946A1 (fr) * | 1976-11-16 | 1978-06-09 | Kawaguchiya Firearms | Dispositif entraine par gaz pour fusil mitrailleur automatique |
US4418608A (en) * | 1980-03-22 | 1983-12-06 | Rheinmetall Gmbh | Arrangement for pre-selecting the cadence of firing bursts of a pressurized gas loader of a gun |
US5959234A (en) * | 1997-01-31 | 1999-09-28 | Benelli Armi S.P.A. | Gas-operated automatic firearm, particularly a shotgun |
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 |
US20130036900A1 (en) * | 2011-08-08 | 2013-02-14 | Stephen Mark Mueller | Recoil Apparatus for Firearm |
US8844425B2 (en) * | 2011-08-08 | 2014-09-30 | Elite Tactical Advantage | Recoil apparatus for firearm |
US10578381B2 (en) * | 2018-01-22 | 2020-03-03 | American Tactical, Inc. | Upper receiver for modular shotgun |
US11125516B2 (en) * | 2018-01-22 | 2021-09-21 | American Tactical, Inc. | Upper receiver for modular shotgun |
US20220333884A1 (en) * | 2021-04-17 | 2022-10-20 | Jordan Kristomas Kennedy | System for a delayed-opposed-piston gas action assembly |
US11519681B2 (en) * | 2021-04-17 | 2022-12-06 | Jordan Kristomas Kennedy | System for a delayed-opposed-piston gas action assembly |
Also Published As
Publication number | Publication date |
---|---|
FR961368A (xx) | 1950-05-11 |
LU28362A1 (xx) | |
BE480352A (xx) | |
CH281166A (fr) | 1952-02-29 |
DE867368C (de) | 1953-02-16 |
GB634767A (en) | 1950-03-29 |
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