US3765302A - Barrel ring and associated structure for autoloading firearms - Google Patents

Barrel ring and associated structure for autoloading firearms Download PDF

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Publication number
US3765302A
US3765302A US00223857A US3765302DA US3765302A US 3765302 A US3765302 A US 3765302A US 00223857 A US00223857 A US 00223857A US 3765302D A US3765302D A US 3765302DA US 3765302 A US3765302 A US 3765302A
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US
United States
Prior art keywords
barrel
ring
cap
lip
magazine tube
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
US00223857A
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English (en)
Inventor
V Browning
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.)
Browning Industries Inc
Original Assignee
Browning Industries Inc
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 Browning Industries Inc filed Critical Browning Industries Inc
Application granted granted Critical
Publication of US3765302A publication Critical patent/US3765302A/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

Definitions

  • ABSTRACT A barrel ring, which surrounds the magazine tube of an auto-loading firearm in an easy sliding fit, is provided with an extending tapered lip on its lower forward edge; a cap which is provided to close around the tube end at the barrel ring has a rim configurated to bear upon the inner surface of the lip as the cap is advanced toward the ring. In this fashion, the magazine tube is forced into tight contact with the upper inner surface of the ring.
  • a hollow magazine tube is typically disposed beneath the barrel in parallelism thereto.
  • the magazine tubes are generally of substantial length and have one end fixed to the receiver mechanism of the firearm while the other (forward) end is slidably received easily into a bracket which is permanently fixed to the barrel.
  • the magazine tube guides and supports the barrel by means of the bracket.
  • the bracket is variously referred to as a barrel lug, a support ring or a barrel ring; essentially, such a bracket comprises a portion which is fixed to the barrel plus an extending annular member with a cylindrical inner surface to closely surround the magazine tube.
  • a magazine cap is generally removably fitted to the forward end of the magazine tube to engage the forward face of the barrel ring. The cap thus both secures the assembly and closes the end of the magazine tube. When the cap is removed, the barrel may be detached from the receiver and slid off the magazine tube for facility of cleaning or carrying.
  • a problem with such arrangements has been the inevitable escape of gases where the barrel ring surrounds the magazine tube.
  • the force of the explosion gases typically pushes the magazine tube down toward the bottom of the barrel ring and thus increases the space between the top of the magazine tube and the upper inner surface of the ring. Deposits od contaminates from the escaping gases eventually form in the space, making it difficult to slide the barrel ring along the magazine tube to dismount the barrel.
  • This invention provides a novel barrel ring and cooperating magazine cap structure to be utilized on an autoloading firearm.
  • the barrel ring of this invention permits ease of withdrawal of a magazine tube therefrom. Nevertheless, while in assembled condition, the cap and ring provide a sealed fit with the magazine tube to prevent the escape of gases therebetween.
  • a modified barrel ring where the lower forward edge of the ring has an integral projecting lip of tapering thickness and a cap is provided to close the magazine tube end so that, when the cap is secured around the end of the tube, the edge of the cap rides on the lip of the ring to push the tube against the upper inner surface of the ring thereby effecting a sealed fit to prevent leakage of tapped explosion gases.
  • FIG. 1 is a sectional elevation of a barrel and magazine tube of an autoloading firearm illustrating the mechanism of the invention
  • FIG. 2 is a perspective view of the bracket shown in FIG. 1.
  • a barrel ll of an autoloading firearm is releasably secured at one end to a receiver (not shown) wherein is housed the action of the firearm.
  • a combination magazine tube and operating cylinder designated 12 (hereinafter referred to only as a magazine tube) which also has one end secured to the receiver and which extends therefrom in alignment with the barrel.
  • the magazine tube 12 houses the cartridges for the firearm and contains various well-known mechanisms, not here shown, to expel expended cartridge casings and to active reloading.
  • the power for activating those mechanisms is generated by the hot firing gases which are released in the barrel by firing and which are directed therefrom into the magazine tube.
  • the magazine tube is a cylindrical chamber and has an aperture or gas port 13 formed in its wall through which the firing gases can flow.
  • a barrel ring 14 is provided which fixedly depends from the barrel 11 to slidably receive the magazine tub 12 therethrough.
  • the barrel ring 14 is embodied as an annular member 14a permanently fixed to the barrel ill by an integral lug portion 15, and the annular member 114a has a circular central aperture 16 through which the magazine tube 12 slidably fits.
  • the barrel ring 14 includes, as is conventional, conduit means for providing a gas path from the barrel to the interior in the magazine tube.
  • the conduit means comprises a channel 17 formed radially through the wall of the ring to interconnect apertures 18 and 13 formed in the barrel wall and magazine tube wall, respectively. Gases released in the barrel are thus tapped into the magazine tube to activate the mechanisms contained therein.
  • An integral lip 19 is formed along the lower portion of the forward edge of the barrel ring 14.
  • the lip 19 describes an arc of less than 180 along the lower circumferential edge of the ring and projects forward there- 7 from.
  • the lip is tapered barrel ring.
  • the rim 22 of the cap 21 is beveled or rounded to generally match the taper of the lip 19. Consequently, a smooth wedging action is achieved as the cap 21 is advanced toward the ring 14.
  • the cap 21 is further provided with a circumferential flange 23 which contacts both the rabbeted portion 20 of lug l and the outer edge of the lip 19 so that the cap is positively stopped after the rim of the cap has ridden up a certain distance onto the lip.
  • an autoloading firearm having a barrel and a magazine tube slidably disposed through a barrel ring fixedly depending from the barrel and held in place by a magazine end cap placed over the forward end of the magazine tube, the barrel ring having a channel aligned with ports through the walls of the barrel and magazine tube such that firing gases are directed into the magazine tube to activate loading of the forearm when it is fired, the improvement which comprises:
  • a rim on said cap configurated to bear upon the inner surface of said lip as the cap is advanced toward the ring, constituting a means to force the magazine tube and its port up in said ring to seal around the channel to prevent the escape of firing gases at the juncture between the tube and the ring.
  • stop means comprises an integral, circumferential flange on said cap and a rabbeted portion is formed on 7 said barrel ring to abut said flange to said said cap after said rim has ridden a substantial distance on said lip.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US00223857A 1972-02-07 1972-02-07 Barrel ring and associated structure for autoloading firearms Expired - Lifetime US3765302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22385772A 1972-02-07 1972-02-07

Publications (1)

Publication Number Publication Date
US3765302A true US3765302A (en) 1973-10-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00223857A Expired - Lifetime US3765302A (en) 1972-02-07 1972-02-07 Barrel ring and associated structure for autoloading firearms

Country Status (3)

Country Link
US (1) US3765302A (fr)
BE (1) BE794967A (fr)
CA (1) CA958927A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100024636A1 (en) * 2008-07-29 2010-02-04 Winge Michael L Gas pressure mechanism in gas-operated firearm
US20100281743A1 (en) * 2003-08-28 2010-11-11 Ra Brands, L.L.C. Modular Barrel Assembly
ITBS20110094A1 (it) * 2011-06-23 2012-12-24 Beretta Armi Spa Fucile per uso sportivo o da difesa con tubo serbatoio per cartucce

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191409579A (en) * 1914-04-17 1915-01-07 Charles William Laird Improvements in or relating to Small Arms and Machine Guns.
US2902903A (en) * 1958-09-11 1959-09-08 Browning Ind Inc Cleaning device for a gas operated firearm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191409579A (en) * 1914-04-17 1915-01-07 Charles William Laird Improvements in or relating to Small Arms and Machine Guns.
US2902903A (en) * 1958-09-11 1959-09-08 Browning Ind Inc Cleaning device for a gas operated firearm

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100281743A1 (en) * 2003-08-28 2010-11-11 Ra Brands, L.L.C. Modular Barrel Assembly
US7866079B2 (en) * 2003-08-28 2011-01-11 Ra Brands, L.L.C. Modular barrel assembly
US20100024636A1 (en) * 2008-07-29 2010-02-04 Winge Michael L Gas pressure mechanism in gas-operated firearm
US8245625B2 (en) * 2008-07-29 2012-08-21 Winge Michael L Gas pressure mechanism in gas-operated firearm
ITBS20110094A1 (it) * 2011-06-23 2012-12-24 Beretta Armi Spa Fucile per uso sportivo o da difesa con tubo serbatoio per cartucce
EP2538164A1 (fr) * 2011-06-23 2012-12-26 Fabbrica d'Armi Pietro Beretta S.p.A. Fusil de sport ou de défense doté d'un tuyau de réception de cartouches
RU2577492C2 (ru) * 2011-06-23 2016-03-20 Фабрика Д'Арми Пьетро Беретта С.П.А. Спортивная или оборонительная винтовка с трубкой магазина для патронов

Also Published As

Publication number Publication date
CA958927A (en) 1974-12-10
BE794967A (fr) 1973-08-06

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