US2775164A - Gun barrel - Google Patents

Gun barrel Download PDF

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Publication number
US2775164A
US2775164A US328162A US32816252A US2775164A US 2775164 A US2775164 A US 2775164A US 328162 A US328162 A US 328162A US 32816252 A US32816252 A US 32816252A US 2775164 A US2775164 A US 2775164A
Authority
US
United States
Prior art keywords
barrel
liner
gun
muzzle
breech
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
US328162A
Other languages
English (en)
Inventor
Tillander Folke Gustav
Aslund Ivan
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.)
Saab Bofors AB
Original Assignee
Bofors AB
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 Bofors AB filed Critical Bofors AB
Application granted granted Critical
Publication of US2775164A publication Critical patent/US2775164A/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
    • F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
    • 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
    • F41A21/02—Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
    • F41A21/04—Barrel liners

Definitions

  • the object of the present invention is to provide a novel and improved barrel design which considerably reduces the costs due to the wear and tear experienced by the barrel during the ring of the gun and which is substantially free of the disadvantages of the designs of full length liners as hitherto proposed.
  • another object of the invention is to provide a gun barrel design which permits a convenient replacement of the part of the barrel most subject to wear and tear without the necessity of anchoring a liner to the rear end of the gun barrel.
  • Another object of the invention is to provide a gun barrel composed of two sections or the part joined along a circumferential line situated just in front of or adjacent to the forward end of the casing of the cartridge so that it is only necessary to exchange the ⁇ less expensive front or muzzle part of the barrel when the need to do so arises.
  • a more specific object of the invention is to provide means by which the expenses of restoring a worn out barrel lto full usefulness are still further reduced.
  • the said means comprise a liner fitted in the rear portion of the muzzle part of the barrel and anchored within to the muzzle section or to the front end of the breech part of the barrel.
  • Fig. 1 is a perspective fragmentary view of a gun barrel according to the invention.
  • Fig. 2 is a perspective, fragmentary view of Va modification of the gun barrel according to Pig. 1.
  • thisgure shows a lgun barrel composed of two parts, to wit, a front or muzzle part 1 anda rear or breech part 2 including the cartridge chamber.
  • the two parts are joined in alignment 'by a sleeveshaped member 3 having an internal thread 4 which engage corresponding external threads 5 on the adjacent ends of the two barrel parts.
  • Sleeve 3 is secured against rotation relative to the barrel by any suitable locking means shown as a plurality of screws 6.
  • the circumferential joining line between the Vtwo parts ofthe barrel is situated just in front of the front end of the casing 11 of a cartridge rammed into the barrel.
  • the region of .thebarrel just in front of the forward. end of the casing of a rammed casing is the one most subject to wear and tear 'by ,the effect of hot powder gases.
  • a riiled liner vr7 is exchangeably fitted in this part.
  • the liner-isl secured in its axial position by va circumferential ange 8 at the rear end of the liner which'engages in a ⁇ corresponding circumferential groove in Vthe rear end of muzzle part '1.
  • the liner is held against rotation relative to the barrel by circumferentially spaced locating or locking pins 9. The forward end of the liner abuts against a ange 1 of barrel part 1.
  • the liner and its locking pins can be conveniently assembled from the rear end of muzzle part 1 when the latter is detached from the breech part of the barrel.
  • the liner due to its location in the barrel, is the part subjected to the greatest wear. Accordingly, the liner is preferably made of a material that is as resistant as possibleI to the effect of the hot powder gases. Generally, the material used for the liner is of a higher quality than the material used for the barrel parts 1 and 2.
  • the length of the liner is selected according to the calibre of the gun and the length of projectile 10 of the cartridge. Generally speaking, the length of the breech part of the barrel is approximately the same as that of the casing or the increment of a cartridge rammed into the barrel.
  • the breech part is provided with external threads 12 by means of which the breech ring is attached to the barrel.
  • the muzzle part of the barrel is provided with a circumferential support flange 13 situated adjacent to the forward end of the sleeve 3.
  • the gun barrel according to Fig. 2 is basically similar to the barrel of Fig. l with the exception that with the barrel of Fig. 2 the liner 7 is integral with the breech part 2.
  • the two barrel parts are joined by screwing the internal threads 4' of locking sleeve 3 on the external threads 5' of muzzle part 1.
  • a gun barrel comprising a separate muzzle part and breech 'part in aligned abutment forming the chamber for a cartridge rammed into the barrel, a liner removably tted in said muzzle part and extending from the end thereof abutting the breech part toward the muzzle of the barrel to a point slightly ahead of the noze of the projectile of a rammed cartridge, and joining means detachably joining the said parts in aligned position.
  • a gun barrel comprising a separate muzzle part and breech part in aligned abutment, said breech part including the chamber of the barrel and having an axial length approximately equal to the length of the casing of a cartridge rammed into the barrel, a rifled liner removably tted in said muzzle part and extending from the end thereof abutting the breech part toward the muzzle of the barrel to a point slightly ahead of the nose of the projectile of a rammed cartridge, and joining means detachably joining the said separate parts in aligned position.
  • a gun barrel according to claim 2 wherein the said liner and the end of the muzzle part abutting the breech part are formed with a circumferential ange and a groove respectively engaging each other for securing the liner in a fixed axial position within the muzzle part.
  • a gun barrel according to claim 3 in combination with locking means tted between said liner and said muzzle part preventing a rotation of said liner relative to the muzzle part from retaining in registry said barrel rifling and said liner rifling.
  • a gun barrel according to claim 2 wherein the forward end of said breech part is continued by a ried sleeveshaped extension extending from said forward end into the abutting end of the muzzle part, the said extension constituting said removable liner.
  • a gun barrel according to claim 1, wherein said joining means comprise a sleeve member encompassing the abutting ends of said two separate parts of the barrel and secured to the end of each respective barrel part.
  • a gun barrel according to claim 6, wherein the said sleeve member is in form of an axially elongated ring having an internal thread, said abutting ends of the barrel parts each having an external thread engageable with the ring thread.
  • a gun barrel according to claim 6, wherein the said sleeve member is in form of an extension flange extending from one of said separate barrel parts, the said flange overlying the respective end of the other barrel part.
  • a gun barrel according to claim 8 wherein the said extension ange has an internal thread, the respective end of said other barrel part having an external thread engageable with the flange thread.
  • a gun barrel according to claim 1 wherein the said joining means comprise a sleeve member encompassing the abutting ends of said two separate parts ofthe barrel and secured to the end of each respective barrel part, and wherein locking means secure the said sleeve member against rotation relative to the barrel.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US328162A 1952-02-11 1952-12-27 Gun barrel Expired - Lifetime US2775164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE312993X 1952-02-11

Publications (1)

Publication Number Publication Date
US2775164A true US2775164A (en) 1956-12-25

Family

ID=20307658

Family Applications (1)

Application Number Title Priority Date Filing Date
US328162A Expired - Lifetime US2775164A (en) 1952-02-11 1952-12-27 Gun barrel

Country Status (4)

Country Link
US (1) US2775164A (fr)
BE (1) BE517519A (fr)
CH (1) CH312993A (fr)
FR (1) FR1073686A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992596A (en) * 1959-07-28 1961-07-18 Hammer Alexander Floating chamber
US20100281743A1 (en) * 2003-08-28 2010-11-11 Ra Brands, L.L.C. Modular Barrel Assembly
WO2011003510A1 (fr) * 2009-07-07 2011-01-13 Rheinmetall Waffe Munition Gmbh Arme à canon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203161B (de) * 1957-04-20 1965-10-14 George Curry Sullivan Feuerwaffe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US898908A (en) * 1908-07-18 1908-09-15 Ludwig Mertens Means for preventing distortion of cartridge-shells.
US1234783A (en) * 1914-12-01 1917-07-31 Waffenfabrik Mauser Ag Means for combining the barrel with the receiver in connection with firearms.
FR896501A (fr) * 1939-04-22 1945-02-23 Cie Commerciale Caproni Canon démontable
US2609631A (en) * 1948-05-24 1952-09-09 John C Garand Means for securing liners to firearm barrels
US2635021A (en) * 1941-07-03 1953-04-14 Alward Kenneth Cutler Cylinder liner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US898908A (en) * 1908-07-18 1908-09-15 Ludwig Mertens Means for preventing distortion of cartridge-shells.
US1234783A (en) * 1914-12-01 1917-07-31 Waffenfabrik Mauser Ag Means for combining the barrel with the receiver in connection with firearms.
FR896501A (fr) * 1939-04-22 1945-02-23 Cie Commerciale Caproni Canon démontable
US2635021A (en) * 1941-07-03 1953-04-14 Alward Kenneth Cutler Cylinder liner
US2609631A (en) * 1948-05-24 1952-09-09 John C Garand Means for securing liners to firearm barrels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992596A (en) * 1959-07-28 1961-07-18 Hammer Alexander Floating chamber
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
WO2011003510A1 (fr) * 2009-07-07 2011-01-13 Rheinmetall Waffe Munition Gmbh Arme à canon

Also Published As

Publication number Publication date
BE517519A (fr)
FR1073686A (fr) 1954-09-28
CH312993A (de) 1956-03-15

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