GB998450A - Reduction of gun barrel wear - Google Patents

Reduction of gun barrel wear

Info

Publication number
GB998450A
GB998450A GB34397/57A GB3439757A GB998450A GB 998450 A GB998450 A GB 998450A GB 34397/57 A GB34397/57 A GB 34397/57A GB 3439757 A GB3439757 A GB 3439757A GB 998450 A GB998450 A GB 998450A
Authority
GB
United Kingdom
Prior art keywords
propellant
charge
inert gas
gun barrel
sleeve
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
Application number
GB34397/57A
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.)
Minister of National Defence of Canada
Original Assignee
Minister of National Defence of Canada
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 Minister of National Defence of Canada filed Critical Minister of National Defence of Canada
Publication of GB998450A publication Critical patent/GB998450A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/24—Cartridges, i.e. cases with charge and missile for cleaning; for cooling; for lubricating ; for wear reducing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/704—Coolants

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

998,450. Propellant cartridges. CANADA, MINISTER OF NATIONAL DEFENCE. Nov. 4, 1957 [Nov. 14, 1956], No. 34397/57. Drawings to Specification. Heading F3A. The corrosive effects of propellant gases on a gun barrel are reduced by the formation of a layer of cool, inert gas between the barrel and the propellant gases. The inert gas layer is generated from a composition which is decomposed by the heat of the burning charge and propellant gases and which is formed as a sleeve surrounding the forward end of the charge. To facilitate rapid decomposition of the sleeve, it is in the form of a polyurethane isocyanate foam. Other materials such as nylon, silk, wool, polymethyl methacrylate, synthetic and natural rubbers, polystyrene, polyethylene and silicones may be used and the polyurethane foam may be combined with ammonium oxalate as a filler. Where the projectile and cartridge case are combined, the inert gasforming composition surrounds the propellant charge within the cartridge case. Where the propellant charge and projectile are separate the inert gas-forming composition sleeve surrounds the propellant charge and fits tightly against the inner surface of the gun barrel.
GB34397/57A 1956-11-14 1957-11-04 Reduction of gun barrel wear Expired GB998450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA718214 1956-11-14

Publications (1)

Publication Number Publication Date
GB998450A true GB998450A (en) 1965-07-14

Family

ID=4140999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34397/57A Expired GB998450A (en) 1956-11-14 1957-11-04 Reduction of gun barrel wear

Country Status (2)

Country Link
US (1) US3209689A (en)
GB (1) GB998450A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164426A (en) * 1984-09-12 1986-03-19 Herstal Sa Ammunition

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290452B (en) * 1965-05-08 1969-03-06 Rheinmetall Gmbh Maneuver cartridge
US3429261A (en) * 1965-10-06 1969-02-25 Herbert M Goldstein Round of fixed ammunition having improved gun bore erosion characteristics
US3392669A (en) * 1966-01-24 1968-07-16 Army Usa Erosion reducer
DE1578205B1 (en) * 1966-05-27 1970-02-12 Rheinmetall Gmbh Maneuver cartridge for guns
US3397636A (en) * 1967-03-22 1968-08-20 Wegematic Corp Wear reduction additives
US3426684A (en) * 1968-01-18 1969-02-11 Wegematic Corp Wear reduction additives
US3403626A (en) * 1968-01-18 1968-10-01 Wegematic Corp Wear reduction additives
US3403625A (en) * 1968-01-18 1968-10-01 Wegematic Corp Wear reduction additives
US3566792A (en) * 1968-06-26 1971-03-02 Andrew J Grandy Ammunition
US3830157A (en) * 1972-10-31 1974-08-20 Us Army Cartridge case
US4098193A (en) * 1976-09-08 1978-07-04 The United States Of America As Represented By The Secretary Of The Army Wear and corrosion reducing additive for gun propellants
US4395934A (en) * 1980-04-21 1983-08-02 The United States Of America As Represented By The Secretary Of The Army Wear reducer
US4334477A (en) * 1980-04-21 1982-06-15 Sydney Axelrod Wear reducer
BE900560A (en) * 1981-09-22 1985-03-01 Herstal Sa IMPROVED AMMUNITION.
FR2600411B1 (en) * 1986-06-19 1990-04-20 France Etat Armement PROPULSIVE LOADING OF AMMUNITION USABLE IN PARTICULAR FOR LARGE CALIBER ARROW PROJECTILES
US4715284A (en) * 1986-11-24 1987-12-29 Ford Aerospace & Communications Corp. Telescoped ammunition construction for reducing barrel erosion
FR2772906B1 (en) * 1997-12-18 2000-02-11 Julien Jammet METHOD FOR MITIGATING THE RECOIL OF A FIREARMS, FIREARMS AND CARTRIDGES FOR IMPLEMENTING A PROCESS
FR2794854B1 (en) * 1999-06-08 2002-05-17 Poudres & Explosifs Ste Nale METAL AMMUNITION SOCKET FOR INTERIOR FIREARMS COATED WITH AN ANTI-EROSIVE SLEEVE
TWM348936U (en) * 2008-09-03 2009-01-11 Gan Yao Guo Paint ball gun

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US45227A (en) * 1864-11-29 Improvement in scraping- disk or wad for ordnance car
US1187779A (en) * 1914-10-02 1916-06-20 Wilbur Miller C Ammunition.
US1842445A (en) * 1929-05-25 1932-01-26 Western Cartridge Co Shot shell
BE420895A (en) * 1936-02-04 1900-01-01
GB494264A (en) * 1937-04-23 1938-10-24 John Edmund David Holland Improvements in shot gun cartridges
US2559275A (en) * 1947-07-03 1951-07-03 Remington Arms Co Inc Cellular plastic wad
US2703529A (en) * 1947-08-29 1955-03-08 Arnold J Tuckerman Lining for perforated cartridge cases
US2820412A (en) * 1948-10-20 1958-01-21 Jr Reinier Beeuwkes Projectile for firearms
US2897758A (en) * 1956-09-17 1959-08-04 Olin Mathieson Metallic shotshell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164426A (en) * 1984-09-12 1986-03-19 Herstal Sa Ammunition

Also Published As

Publication number Publication date
US3209689A (en) 1965-10-05

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