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US2003066A - Firearm of the gas reloading type - Google Patents

Firearm of the gas reloading type Download PDF

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Publication number
US2003066A
US2003066A US657130A US65713033A US2003066A US 2003066 A US2003066 A US 2003066A US 657130 A US657130 A US 657130A US 65713033 A US65713033 A US 65713033A US 2003066 A US2003066 A US 2003066A
Authority
US
United States
Prior art keywords
cylinder
gas
piston
combustion
powder
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
Application number
US657130A
Other languages
English (en)
Inventor
Brondby Fridtjof Nielsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2003066A publication Critical patent/US2003066A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel
    • 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
    • F41A5/28—Adjustable systems

Definitions

  • the present invention relates to automatic fire arms of the so-called gas reloading type, wherein a proportion of the powder gas developed by the firing is utilized as a driving power to open the breech and to move back the members taking part in the reloading. This is effected by the gas being caused to act upon a piston which is movable in a cylinder and is mechanically connected with the said movable breech members.
  • a piston 30 is used whose length is so proportioned in relation to the travel thereof that the piston can separate from the cylinder and thereby put the cylinder in connection with the atmosphere for so long a time after each shot that the gases of combustion may be thoroughly scavenged and before the next shot may be filled with air.
  • the cylinder volume is of such proportions so that the air content therefore is sufiicient to effect, to the necessary degree, a supplemental combustion of the powder gas introduced into the cylinder.
  • the device is sufiiciently cooled after each shot by the cold atmospheric air in the cylinder, and said air assists simultaneously in obtaining'a sumciently elastic pressure action of the gas mixture. Further, a supplemental combustion is obtained of the mud-forming constitutents of the powder gas, particularly of the finely distributed free carbon and partly of the carbon monoxide, and
  • the piston surrounding the gas cylinder is approximately half the length of the travel of the rearwardly moving parts of the mechanism. However, this depends upon the properties of the breech mechanism.
  • the breech mechanism of the arm Upon having designed the breech mechanism of the arm and then found, for instance by measurement, the size and duration of the force necessary to open the breech, it is possible according to the chosen barrel bore, the projectile, the type of powder and the approximate powder charge to get the approximate temperature and pressure (from the well-known powder-curves) of the powder gases at the moment the gas passes from the barrel through the lateral channel into the gas cylinder. Then it is necessary first to provide for obtaining at least the pressure on the piston necessary to open the breech mechanism (the force necessary having been mea sured as mentioned above). The size of this pressure in combination with the working pressure of the powder gases gives the data for determining the gas cylinder diameter. Then its length, or more correctly its capacity, remains to be determined.
  • This capacity should be suinciently large to enable the air contained therein to supplement the combustion of the powder gas to such an extent that the formation of soot and mud is held to a minimum.
  • a complete combustion of all its combustible constituents is not necessary. Only a partial combustion is required, but the necessary air therefore can always be determined.
  • the invention is illustrated in the accompanying drawing showing a longitudinal section of the foremost barrel-half.
  • the breech mechanism and the mechanism-members causing opening and closing after each shot to effect the automatic reloading are not shown, because such members are no part of this invention and may be constructed in many different manners.
  • I is the barrel and 2 its usual bore, the fore most portion of which has an ordinary sidechannel 3, through which the powder gas may pass into the gas cylinder 4 to yield driving power for moving back the reciprocating and automatical reloading-members, the foremost part of which is indicated at 5 with piston 6.
  • the action is regulated by a screw 1.
  • the gas cylinder 4 is considerably extended rearwardly so as to obtain a large capacity, preferably at least the same capacity as the bore 2.
  • the piston 6 is made comparatively long; preferably equal to about one half of the stroke of the member 5 during the opening of the breech mechanism, so that the air within the cylinder heated by the powder gas obtains a sufiicient time to be heated and to expand during the first half of this stroke. As soon as this half of the stroke is completed, the piston sepa-.
  • An automatic fire arm of the gas reloading type having a breech mechanism comprising a barrel having a bore therein, a piston cylinder having a channel connecting said cylinder with said barrel bore in order to allow the combustion gases to enter into said cylinder, 9. piston cooperating with said cylinder and connected with the breech mechanism to operate the same, said piston engaging said cylinder during a part only of its travel thereby opening said cylinder to the atmosphere to thoroughly empty the combustion gases therefrom and permit the same to be filled with air, the volume of said cylinder being at least equal to a substantial portion of the volume of the barrel bore so that the. air content therein is sufficient to cause a supplemental combustion of the combustion gases whereby not only the pressure and expansion of the combustion gases are-utilized, but also the supplemental heat created and the formation of mud and soot is held to a minimum.
  • An automatic fire arm in accordance with claim 1 wherein an adjustable screw is provided for controlling the cross sectional area of said channel whereby the ratio between the combustion gases of said cylinder and the air therein may be controlled so as to secure a correct supplemental combustion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Nozzles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US657130A 1932-02-22 1933-02-16 Firearm of the gas reloading type Expired - Lifetime US2003066A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO170485X 1932-02-22

Publications (1)

Publication Number Publication Date
US2003066A true US2003066A (en) 1935-05-28

Family

ID=19904603

Family Applications (1)

Application Number Title Priority Date Filing Date
US657130A Expired - Lifetime US2003066A (en) 1932-02-22 1933-02-16 Firearm of the gas reloading type

Country Status (7)

Country Link
US (1) US2003066A (de)
BE (1) BE394530A (de)
CH (1) CH170485A (de)
DE (1) DE648391C (de)
FR (1) FR751209A (de)
GB (2) GB415391A (de)
NL (1) NL35225C (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977815A (en) * 1989-05-05 1990-12-18 Stephens Mark L Self cleaning automatic machine pistol and silencer for the same
US20080307954A1 (en) * 2005-12-23 2008-12-18 Norbert Fluhr Gas bleed assemblies for use with firearms
US8261653B2 (en) * 2007-06-18 2012-09-11 Richard Vance Crommett Firearm having a new gas operating system
US20130098235A1 (en) * 2011-10-24 2013-04-25 Ralph J. Reinken Adjustable Gas Block
US8528458B2 (en) 2011-07-27 2013-09-10 Bernard T. Windauer Pressure-regulating gas block
US20140000446A1 (en) * 2012-06-29 2014-01-02 Corby Hall Adjustable Gas Cyclic Regulator for an Autoloading Firearm
US20140076149A1 (en) * 2011-07-19 2014-03-20 Jason Mark Adams Adjustable Firearm Gas Block
US20140090550A1 (en) * 2011-11-01 2014-04-03 Dave Wilcox Tool-less variable gas block
US8863637B2 (en) * 2012-06-29 2014-10-21 Corby Hall Adjustable gas cyclic regulator for an autoloading firearm
US20150176933A1 (en) * 2013-12-23 2015-06-25 Jason Mark Adams Adjustable Volume Piston System
US9273916B1 (en) * 2015-01-05 2016-03-01 Carmelo Russo Firearm impingement system having adjustable gas block
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm
US20200025477A1 (en) * 2017-11-15 2020-01-23 Springfield, Inc. Adjustable gas block assembly for a gas operated semi-automatic firearm
US20220299282A1 (en) * 2020-05-22 2022-09-22 Bahtiyar Tasyagan Pressure control mechanism for fireguns

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739792C (de) * 1935-04-02 1943-11-17 Hermann Roechling Dr Nach dem Gasdruckladersystem arbeitende selbsttaetige Feuerwaffe
DE2809505C2 (de) * 1978-03-06 1982-10-07 Rheinmetall GmbH, 4000 Düsseldorf Gurtzuführerantrieb für eine automatische Gasdrucklader-Rohrwaffe, insbesondere Maschinenkanone
DE19921804A1 (de) * 1999-05-11 2000-11-16 Dynamit Nobel Ag Aufsatzvorrichtung für die Gasabnahme einer automatischen Waffe
DE102006056130A1 (de) 2006-08-03 2008-02-07 Heckler & Koch Gmbh Gasabnahmeanordnung und Lauf bzw. Waffe mit einer Gasabnahmeanordnung

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977815A (en) * 1989-05-05 1990-12-18 Stephens Mark L Self cleaning automatic machine pistol and silencer for the same
US20080307954A1 (en) * 2005-12-23 2008-12-18 Norbert Fluhr Gas bleed assemblies for use with firearms
US7621210B2 (en) * 2005-12-23 2009-11-24 Heckler & Koch, Gmbh Gas bleed assemblies for use with firearms
KR101163815B1 (ko) 2005-12-23 2012-07-09 헤클러 운트 코흐 게엠베하 가스 토출 장치, 가스 토출 장치를 갖는 총신 및 무기
US8261653B2 (en) * 2007-06-18 2012-09-11 Richard Vance Crommett Firearm having a new gas operating system
US8584575B2 (en) * 2007-06-18 2013-11-19 Richard Vance Crommett Firearm having a new gas operating system
US8813632B2 (en) * 2011-07-19 2014-08-26 Jason Mark Adams Adjustable firearm gas block
US20140076149A1 (en) * 2011-07-19 2014-03-20 Jason Mark Adams Adjustable Firearm Gas Block
US8528458B2 (en) 2011-07-27 2013-09-10 Bernard T. Windauer Pressure-regulating gas block
US20130098235A1 (en) * 2011-10-24 2013-04-25 Ralph J. Reinken Adjustable Gas Block
US20140090550A1 (en) * 2011-11-01 2014-04-03 Dave Wilcox Tool-less variable gas block
US9103610B2 (en) * 2011-11-01 2015-08-11 Chazkat, Llc Tool-less variable gas block
US20140000446A1 (en) * 2012-06-29 2014-01-02 Corby Hall Adjustable Gas Cyclic Regulator for an Autoloading Firearm
US8863637B2 (en) * 2012-06-29 2014-10-21 Corby Hall Adjustable gas cyclic regulator for an autoloading firearm
US9322606B2 (en) * 2012-06-29 2016-04-26 F & D Defense Llc Adjustable gas cyclic regulator for an autoloading firearm
US20150176933A1 (en) * 2013-12-23 2015-06-25 Jason Mark Adams Adjustable Volume Piston System
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm
US9273916B1 (en) * 2015-01-05 2016-03-01 Carmelo Russo Firearm impingement system having adjustable gas block
US20200025477A1 (en) * 2017-11-15 2020-01-23 Springfield, Inc. Adjustable gas block assembly for a gas operated semi-automatic firearm
US20220299282A1 (en) * 2020-05-22 2022-09-22 Bahtiyar Tasyagan Pressure control mechanism for fireguns

Also Published As

Publication number Publication date
BE394530A (de)
GB418968A (en) 1934-11-02
FR751209A (fr) 1933-08-29
CH170485A (de) 1934-07-15
GB415391A (en) 1934-08-21
DE648391C (de) 1937-07-30
NL35225C (de)

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