GB998450A - Reduction of gun barrel wear - Google Patents
Reduction of gun barrel wearInfo
- 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
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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Filling Or Discharging Of Gas Storage Vessels (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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2164426A (en) * | 1984-09-12 | 1986-03-19 | Herstal Sa | Ammunition |
Families Citing this family (19)
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)
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 |
-
1957
- 1957-11-04 US US694453A patent/US3209689A/en not_active Expired - Lifetime
- 1957-11-04 GB GB34397/57A patent/GB998450A/en not_active Expired
Cited By (1)
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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