US2932915A - Choke-compensator adaptor for metalplastic firearm barrel - Google Patents

Choke-compensator adaptor for metalplastic firearm barrel Download PDF

Info

Publication number
US2932915A
US2932915A US687786A US68778657A US2932915A US 2932915 A US2932915 A US 2932915A US 687786 A US687786 A US 687786A US 68778657 A US68778657 A US 68778657A US 2932915 A US2932915 A US 2932915A
Authority
US
United States
Prior art keywords
sleeve
choke
compensator
barrel
adaptor
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
US687786A
Inventor
John L Wilson
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Priority to US687786A priority Critical patent/US2932915A/en
Application granted granted Critical
Publication of US2932915A publication Critical patent/US2932915A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F41A21/40—Chokes for shotguns, e.g. automatic chokes

Definitions

  • the present invention relates to firearms and in particular to firearms barrels of vthe type formed compositely of an inner metal liner or sleeve and an outer jacket of glass reinforced plastic.
  • the invention relates to a means for adapting choke-compensator devices to firearms barrels of the above general construction.
  • a particular feature of the present invention is the provision of an adaptor mounted on the end of a composite barrel operative to receive a choke-compensator device of any desired structure where the overall arrangement blends pleasingly with the exterior surface of the gun barrel.
  • Another feature of the present invention is the provision of means for mounting such a device to a compositely formed gun barrel without increasing the overall diameter of the gun barrel including the attached device.
  • Another feature of the present invention is the provision of a composite metallic-plastic gun barrel including a compensator device which does not interfere with the shooters line of sight.
  • Another feature of the present invention is the provision of an adaptor structure in a gun barrel of the above general description upon which one can mount a variety of choke-compensator devicesy interchangeably.
  • the barrel comprises an inner, ⁇ thin walled metallic Vtube lll, ⁇ the wall thickness being of the order of 2%000 of an inch surrounded and reinforced by a jacket of Fiberglas reinforced plastic l2.
  • the composite barrel structure is made in accordance with the process disclosed in said patent.
  • Y A sleeve or adaptor 13 receives the end 14 of the metal tube 11.
  • the adaptor and the tube are fastened together by brazing or silver soldering the interior surface of the adaptor to the exterior surface of the tube.
  • the forward end of the sleeve is formed with internal threads, as at 16, adapted to receive mating threads 17 formed on a choke-compensator 18.
  • the member 18 is provided with an elongated neck portion 19 defining a choke formed with a taper mating with a corresponding taper formed on the inner diameter of the sleeve 13 as at 21.
  • the right end of the member 1S defines a compensator.
  • Clearance is provided between the forward -end 22 of the sleeve and the shoulder 23 of the compensator and the length of the neck 19 is dimensioned so that the choke portion of ⁇ the device whereby shot proceeding Y of glass reinforced plastic surrounding the tube eifective to provide a rupture proof composite wall structure and f a sleeve member having internal threads at one end thereof sandwiched between the metallic tube and the jacket, the inner diameter of the sleeve i being soldered to the exterior diameter of the vtubing and said internal threads thereof being operative to receive interchangeably arbarrel choke-compensator device.
  • the barrel, the sleeve and the choke-compensator device constitute an assembly and may be referred to hereinafter'as a choke-compensator assembly.
  • Fig. l is a side view of a composite barrel in combination with a choke-compensator showing to advantage the smooth flowing exterior lines and uniform outer diameters of the barrel and the choke-compensator.
  • Fig. 2 is a sectional view of the structure shown in Fig. l as viewed in the plane of line 22.
  • the device may be homed against the end of the metallic tube to make a substantially fluid tight seal at the junction Y 24 between the tube 11 and the sleeve 13.
  • the sleeve is also provided with a taper 26 terminating in a uniformwall 27.
  • the sleeve 13 is soldered to the tubing 11 prior to the application of the glass reinforced plastic jacket 12. After the sleeve has been soldered in place, the tube 11 tted with the sleeve 13 is served or wound with ends of Fiberglas suitably reinforced and impregnated with plastic bonding material in accordance with the disclosure of said copending application.
  • the taper 26 is effective to permit the serving or roving of Fiberglas to run out gradually so that the glass reinforced plastic blends uniformly and imperceptbly with the exterior 28 of the sleeve.
  • suitable gun blueing pigments aid in achieving a smooth transition from the jacket to the steel sleeve.
  • the assembly of the present invention may include avariety of compensating or choke devices in threaded engagement with the sleeve 13 as the shooter may desire.
  • .Attention is directed to the fact that the present invention provides a means for conveniently and effectively adapting a muzzle accessory to a firearm barrel
  • the .barrel is formed compositely of an inner, thin walled l'metallic tube jacketed with a relatively thick wall of glass reinforced plastic inherently such a structure, while very effective in resisting bursting loads, vdoes not lend itself readily to machining or threading thus making it extremely difficult to adapt metallic elements to such a barrel.
  • 'Ihe present invention overcomes this problem.
  • an adaptor for connecting a threaded compensating device to said barrel comprising a sleeve having internal threads formed at one end thereof for threadedly engaging the compensating device, the opposite end of the sleeve snugly receiving said thin walled tubing, said jacket being spaced from that portionof the tubing which is received within the sleeve whereby said 2 opposite end is sandwiched between the tubing and the p threaded compensating device to said barrel comprising a sleeve having internal threads formed at one end thereof for threadedly engaging the compensating device, the opposite end of the sleeve snugly receiving said thin walled tubing, said jacket being spaced from that portion of the tubing which is received within ⁇ the sleeve whereby said opposite endV is sandwiched between ⁇ the tubing and the jacket, said sleeve being formed with an external taper blending with

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

Aprll 19, 1960 J. L.. wlLsoN 2,932,915
cHoKE-coMPENsAToR ADAPTOR FOR METAL-PLASTIC FIREARM BARREL Filed Oct. `2, 1957 INVENToR. JOHN LWILSON cHorrucoMrENsAron ADAProR Fon METAL PLASTIC FIREARM BARREL .lohn Lvlilson, Madison, Conn., assignor to Olin Mathieson Chemical Corporation, a corporation of Application Gctoher 2, 1957, Serial No. 687,786
3 Claims. (Cl. V42`79) The present invention relates to firearms and in particular to firearms barrels of vthe type formed compositely of an inner metal liner or sleeve and an outer jacket of glass reinforced plastic. A firearms barrel having such composite structure'is vshown and disclosed in U.S. Patent S.N. 2,847,786, issued August 19, 17958, to I. C. Hartley et al.
'More specifically, the invention relates to a means for adapting choke-compensator devices to firearms barrels of the above general construction.
A particular feature of the present invention is the provision of an adaptor mounted on the end of a composite barrel operative to receive a choke-compensator device of any desired structure where the overall arrangement blends pleasingly with the exterior surface of the gun barrel.
Another feature of the present invention is the provision of means for mounting such a device to a compositely formed gun barrel without increasing the overall diameter of the gun barrel including the attached device.
Another feature of the present invention is the provision of a composite metallic-plastic gun barrel including a compensator device which does not interfere with the shooters line of sight. l
Another feature of the present invention is the provision of an adaptor structure in a gun barrel of the above general description upon which one can mount a variety of choke-compensator devicesy interchangeably.
Another feature of the invention is the provision of a smooth transition from the internal surface of the composite barrel proper to the corresponding surface of the 2,932,915 Patented Apr. 19, 1960 ice Referring now in detail to the drawings, there is shown a composite barrel structure indicated generally by the reference numeral 10. In general, the barrel comprises an inner, `thin walled metallic Vtube lll,` the wall thickness being of the order of 2%000 of an inch surrounded and reinforced by a jacket of Fiberglas reinforced plastic l2. The composite barrel structure is made in accordance with the process disclosed in said patent. Y A sleeve or adaptor 13 receives the end 14 of the metal tube 11. The adaptor and the tube are fastened together by brazing or silver soldering the interior surface of the adaptor to the exterior surface of the tube. The forward end of the sleeve is formed with internal threads, as at 16, adapted to receive mating threads 17 formed on a choke-compensator 18. The member 18 is provided with an elongated neck portion 19 defining a choke formed with a taper mating with a corresponding taper formed on the inner diameter of the sleeve 13 as at 21. The right end of the member 1S defines a compensator.
Clearance is provided between the forward -end 22 of the sleeve and the shoulder 23 of the compensator and the length of the neck 19 is dimensioned so that the choke portion of `the device whereby shot proceeding Y of glass reinforced plastic surrounding the tube eifective to provide a rupture proof composite wall structure and f a sleeve member having internal threads at one end thereof sandwiched between the metallic tube and the jacket, the inner diameter of the sleeve i being soldered to the exterior diameter of the vtubing and said internal threads thereof being operative to receive interchangeably arbarrel choke-compensator device.
, The barrel, the sleeve and the choke-compensator device constitute an assembly and may be referred to hereinafter'as a choke-compensator assembly.
Other features and advantages of the present invention will become more apparent from the succeeding specification when read in conjunction with the attached drawings in which:
l Fig. l is a side view of a composite barrel in combination with a choke-compensator showing to advantage the smooth flowing exterior lines and uniform outer diameters of the barrel and the choke-compensator.
Fig. 2 is a sectional view of the structure shown in Fig. l as viewed in the plane of line 22.
device may be homed against the end of the metallic tube to make a substantially fluid tight seal at the junction Y 24 between the tube 11 and the sleeve 13.
Note that the sleeve is also provided with a taper 26 terminating in a uniformwall 27.
The sleeve 13 is soldered to the tubing 11 prior to the application of the glass reinforced plastic jacket 12. After the sleeve has been soldered in place, the tube 11 tted with the sleeve 13 is served or wound with ends of Fiberglas suitably reinforced and impregnated with plastic bonding material in accordance with the disclosure of said copending application. The taper 26 is effective to permit the serving or roving of Fiberglas to run out gradually so that the glass reinforced plastic blends uniformly and imperceptbly with the exterior 28 of the sleeve.
Actually in the finished article the joint between the glass jacket'12 and the metal sleeve 13 is so well blended that the exterior junction thereof is not apparent.
Obviously, suitable gun blueing pigments aid in achieving a smooth transition from the jacket to the steel sleeve.
As stated previously, it is anticipated that the assembly of the present invention may include avariety of compensating or choke devices in threaded engagement with the sleeve 13 as the shooter may desire.
.Attention is directed to the fact that the present invention provides a means for conveniently and effectively adapting a muzzle accessory to a firearm barrel where the .barrel is formed compositely of an inner, thin walled l'metallic tube jacketed with a relatively thick wall of glass reinforced plastic inherently such a structure, while very effective in resisting bursting loads, vdoes not lend itself readily to machining or threading thus making it extremely difficult to adapt metallic elements to such a barrel. 'Ihe present invention overcomes this problem.
What is claimed is:
1. In a firearm barrel of the type formed compositely of thin walled metallic tubing strengthened with a jacket of `glass reinforced plastic, an adaptor for connecting a threaded compensating device to said barrel comprising a sleeve having internal threads formed at one end thereof for threadedly engaging the compensating device, the opposite end of the sleeve snugly receiving said thin walled tubing, said jacket being spaced from that portionof the tubing which is received within the sleeve whereby said 2 opposite end is sandwiched between the tubing and the p threaded compensating device to said barrel comprising a sleeve having internal threads formed at one end thereof for threadedly engaging the compensating device, the opposite end of the sleeve snugly receiving said thin walled tubing, said jacket being spaced from that portion of the tubing which is received within` the sleeve whereby said opposite endV is sandwiched between` the tubing and the jacket, said sleeve being formed with an external taper blending with said jacket.
3. .in a rearrn barrel of the type formed compostely of thin waiied metallic tubing strengthened with a jacket of glass reinforced plastic, an adaptor for connecting a threaded compensating device to said barrel comprising a sleeve having internal threads formed at one end thereof for threadedly engaging the compensating device, the 15 2,731,754
opposite end of the sleeve snugly receiving said thin walled tubing, said jacket being spaced from that portion of the tubing which is received within the sleeve whereby said opposite end is sandwiched between the tubing and the jacket, said compensating device and said adaptor being formed with mating tapers.
References Cited in the tile of this patent UNITED STATES PATENTS 797,345 Cokevroft Y Aug. 15, 1905 2,306,176 Mathis -f ---ff Dec. 22, 1942 2,489,568 Ferhat n Nov. 29, 1949 2,589,171 Vironda Mar. 11, 1952 Gibson Jan. 24, 1956
US687786A 1957-10-02 1957-10-02 Choke-compensator adaptor for metalplastic firearm barrel Expired - Lifetime US2932915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US687786A US2932915A (en) 1957-10-02 1957-10-02 Choke-compensator adaptor for metalplastic firearm barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US687786A US2932915A (en) 1957-10-02 1957-10-02 Choke-compensator adaptor for metalplastic firearm barrel

Publications (1)

Publication Number Publication Date
US2932915A true US2932915A (en) 1960-04-19

Family

ID=24761833

Family Applications (1)

Application Number Title Priority Date Filing Date
US687786A Expired - Lifetime US2932915A (en) 1957-10-02 1957-10-02 Choke-compensator adaptor for metalplastic firearm barrel

Country Status (1)

Country Link
US (1) US2932915A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD415812S (en) * 1998-10-27 1999-10-26 Andrews Jr Raymond W Firearms noise suppressor
USD415813S (en) * 1998-10-27 1999-10-26 O'quinn Carl L Firearms noise suppressor
US6079311A (en) * 1997-11-21 2000-06-27 O'quinn; Carl L. Gun noise and recoil suppressor
US20040154208A1 (en) * 2003-02-12 2004-08-12 Walker Ronald N. Breeching tool
US20100050493A1 (en) * 2008-08-28 2010-03-04 Mardaga Joseph Exchangeable choke for a fire arm with a smooth gun barrel
US8167084B1 (en) 2010-03-01 2012-05-01 Fn Manufacturing, Llc Sound suppressor
US10222164B2 (en) * 2016-11-22 2019-03-05 Fabbrica D'armi Pietro Beretta S.P.A. Extension device of a firearm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797345A (en) * 1904-02-18 1905-08-15 Frank Hampton Cokeroft Shotgun.
US2306176A (en) * 1940-05-16 1942-12-22 William F Mathis Choke for guns
US2489568A (en) * 1947-06-30 1949-11-29 Ferhat Richard John Gun choke device
US2589171A (en) * 1949-06-23 1952-03-11 Italo D Vironda Shotgun choke and compensator
US2731754A (en) * 1950-02-23 1956-01-24 Clyde M Gibson Adjustable choke for double barreled shotguns

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797345A (en) * 1904-02-18 1905-08-15 Frank Hampton Cokeroft Shotgun.
US2306176A (en) * 1940-05-16 1942-12-22 William F Mathis Choke for guns
US2489568A (en) * 1947-06-30 1949-11-29 Ferhat Richard John Gun choke device
US2589171A (en) * 1949-06-23 1952-03-11 Italo D Vironda Shotgun choke and compensator
US2731754A (en) * 1950-02-23 1956-01-24 Clyde M Gibson Adjustable choke for double barreled shotguns

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6079311A (en) * 1997-11-21 2000-06-27 O'quinn; Carl L. Gun noise and recoil suppressor
US6302009B1 (en) 1997-11-21 2001-10-16 O'quinn Carl L. Gun noise and recoil suppressor
USD415812S (en) * 1998-10-27 1999-10-26 Andrews Jr Raymond W Firearms noise suppressor
USD415813S (en) * 1998-10-27 1999-10-26 O'quinn Carl L Firearms noise suppressor
US20040154208A1 (en) * 2003-02-12 2004-08-12 Walker Ronald N. Breeching tool
US6782651B1 (en) * 2003-02-12 2004-08-31 Inpromarketing Corp. Breaching tool
US20100050493A1 (en) * 2008-08-28 2010-03-04 Mardaga Joseph Exchangeable choke for a fire arm with a smooth gun barrel
US8186091B2 (en) * 2008-08-28 2012-05-29 Browning International, Societe Anonyme Exchangeable choke for a fire arm with a smooth gun barrel
US8167084B1 (en) 2010-03-01 2012-05-01 Fn Manufacturing, Llc Sound suppressor
US10222164B2 (en) * 2016-11-22 2019-03-05 Fabbrica D'armi Pietro Beretta S.P.A. Extension device of a firearm

Similar Documents

Publication Publication Date Title
US8677670B2 (en) Segmented composite barrel for weapon
US6758004B2 (en) Firearm barrel manufacturing methods and barrel assemblies
CA2537304C (en) Modular barrel assembly
US2932915A (en) Choke-compensator adaptor for metalplastic firearm barrel
US3486771A (en) Connector fitting
US3118243A (en) Rifled barrel for firearms
US1256255A (en) Testing-cartridge.
US2736119A (en) Firearm having chamber member
US20230152057A1 (en) Firearm shell casing
US2127611A (en) Coupling
BG64104B1 (en) Coupling sleeve for high-pressure pipeline
US10533820B2 (en) Concentric rifle barrel assembly
US9796057B2 (en) Gun barrel assembly
US2903763A (en) Fused aluminum to copper pipe coupling
US20150040454A1 (en) Injection molded gun barrel assembly
US11067364B1 (en) Two-part composite scope
US2451488A (en) Die for swedging bullets
FR2511492A3 (en) REDUCER FOR RIFLE GUNS
US2952089A (en) Chamber structure for guns
US3122061A (en) Recoil spring guide and muzzle weight
US3365831A (en) Interchangeable barrel shotguns
US4346923A (en) Apparatus for joining tubing
US3704035A (en) Coupling assembly for replacement of return bend
US2247420A (en) Means for joining pipe
US1634754A (en) Gun barrel