EP0262574A1 - Projectile - Google Patents
Projectile Download PDFInfo
- Publication number
- EP0262574A1 EP0262574A1 EP87113911A EP87113911A EP0262574A1 EP 0262574 A1 EP0262574 A1 EP 0262574A1 EP 87113911 A EP87113911 A EP 87113911A EP 87113911 A EP87113911 A EP 87113911A EP 0262574 A1 EP0262574 A1 EP 0262574A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sabot
- bullet
- slug
- recess
- conical
- 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.)
- Withdrawn
Links
- 238000010304 firing Methods 0.000 claims abstract description 5
- 230000000295 complement effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000013011 mating Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
Definitions
- the present invention relates to ammunition and particularly to ammunition for use in conventional small arms weapons having rifled or non-rifled barrels.
- Our EP-A-0129777 describes an ammunition round which comprises a casing for containing a propelling charge, a substantially full bore diameter bullet which has a plurality of full length grooves in its outer surface extending helically around or substantially parallel to the longitudinal axis of the bullet, and a sabot in which the bullet seats and which seals the bullet into the casing, the sabot having at least a part with a diameter greater than the diameter of the bullet and a plurality of fingers engaging respective ones of the grooves in the bullet to cause the bullet to spin as the sabot is rotated by engagement with rifling grooves in a barrel through which the round is fired.
- a similar ammunition round for non-rifled barrels is also disclosed.
- the bullet or slug has a rearwardly tapered conical protrusion and the sabot has a complementary conically tapered recess, the conical angle of the recess in the sabot being greater than the conical angle of the protrusion on the bullet or slug.
- the bullet and slug are of the type referred to in EP-A-0129777, in which the bullet has helical or parallel grooves which are engaged by fingers on the sabot in order to transfer spin from the sabot to the bullet mechanically, but the invention has application to prior, conventional bullet and sabot configurations.
- the bullet or slug 1 is preferably of the type shown in Figures 1 to 5, or 6 to 7, or 12 in EP-A-0129777.
- the bullet or slug 1 is suitably modified to include a rearward protrusion 2 having a rearward conical taper of conical angle ⁇ , thus providing a conical surface 3.
- the sabot 4 which is preferably plastics, has a complementary conical recess 5, the conical surface 6 of which has a conical angle ⁇ greater than the angle ⁇ of the taper on the protrusion 2.
- the sabot preferably has forwardly projecting fingers 7 which engage in grooves (not shown) in the bullet 1, as described in our EP-A-0129777.
- the conical angle on the protrusion is 55° and that on the sabot is 60°.
- the sabot 4 has a central aperture 8 which allows forward movement of the sabot (see Figure 2) on filing of the round under the gas pressure acting on the rear face 9 of the sabot. Due to the different conical angles on the sabot recess and bullet protrusion a substantially uniform expansion 11 of the sabot over the length of its cylindrical periphery 10 is produced on firing as shown in Figure 2 as the sabot is compressed against the rear of the bullet.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Engines (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Valve Device For Special Equipments (AREA)
- Flexible Shafts (AREA)
- Toilet Supplies (AREA)
- Toys (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8623153 | 1986-09-26 | ||
GB868623153A GB8623153D0 (en) | 1986-09-26 | 1986-09-26 | Ammunition round |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0262574A1 true EP0262574A1 (fr) | 1988-04-06 |
Family
ID=10604817
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87113911A Withdrawn EP0262574A1 (fr) | 1986-09-25 | 1987-09-23 | Projectile |
EP87906411A Withdrawn EP0323977A1 (fr) | 1986-09-26 | 1987-09-23 | Cartouche |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87906411A Withdrawn EP0323977A1 (fr) | 1986-09-26 | 1987-09-23 | Cartouche |
Country Status (11)
Country | Link |
---|---|
EP (2) | EP0262574A1 (fr) |
JP (1) | JPH02500855A (fr) |
KR (1) | KR880701860A (fr) |
AU (1) | AU8024187A (fr) |
BR (1) | BR8707824A (fr) |
DK (1) | DK285588D0 (fr) |
FI (1) | FI891406A (fr) |
GB (1) | GB8623153D0 (fr) |
HU (1) | HUT50958A (fr) |
IL (1) | IL83991A0 (fr) |
WO (1) | WO1988002469A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2786562A1 (fr) * | 1998-11-26 | 2000-06-02 | Jean Noel Letellier | Adaptateur pour balle sous calibree utilisee dans une arme a canon lisse |
EP1391683A2 (fr) * | 2002-08-21 | 2004-02-25 | R.A. Brands, L.L.C. | Sabot pour balle de fusil de chasse |
WO2009109817A1 (fr) * | 2008-03-03 | 2009-09-11 | Industrias El Gamo, Sa | Procédé permettant de fabriquer une balle pour une carabine ou un pistolet de sport et balle pour carabine ou pistolet de sport ainsi obtenue |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5305378B2 (ja) * | 2008-08-21 | 2013-10-02 | 株式会社Ihiエアロスペース | オブチュレータ及び弾丸 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB145808A (en) * | 1917-08-17 | 1920-07-08 | Franc Bergery | Improvements in and relating to bullets and other projectiles for small arms and artillery |
FR828459A (fr) * | 1937-01-27 | 1938-05-18 | Perfectionnements aux projectiles pour armes à feu | |
GB737348A (en) * | 1953-04-18 | 1955-09-21 | Hans Otto Donner | Improvements in or relating to mortar projectiles |
US2983225A (en) * | 1944-06-30 | 1961-05-09 | Nelson A Walker | Projectile |
CH545956A (de) * | 1972-05-13 | 1974-02-15 | Paul J Kopsch | Geschoss und Verfahren zu dessen Herstellung |
WO1983001300A1 (fr) * | 1981-10-06 | 1983-04-14 | Michael John Robins | Plomb pour une carabine a air, a gaz ou a ressort |
-
1986
- 1986-09-26 GB GB868623153A patent/GB8623153D0/en active Pending
-
1987
- 1987-09-23 JP JP62505837A patent/JPH02500855A/ja active Pending
- 1987-09-23 WO PCT/EP1987/000543 patent/WO1988002469A1/fr not_active Application Discontinuation
- 1987-09-23 IL IL83991A patent/IL83991A0/xx unknown
- 1987-09-23 AU AU80241/87A patent/AU8024187A/en not_active Abandoned
- 1987-09-23 EP EP87113911A patent/EP0262574A1/fr not_active Withdrawn
- 1987-09-23 EP EP87906411A patent/EP0323977A1/fr not_active Withdrawn
- 1987-09-23 BR BR8707824A patent/BR8707824A/pt unknown
- 1987-09-23 HU HU875258A patent/HUT50958A/hu unknown
-
1988
- 1988-05-25 DK DK285588A patent/DK285588D0/da not_active Application Discontinuation
- 1988-05-25 KR KR1019880700578A patent/KR880701860A/ko not_active Application Discontinuation
-
1989
- 1989-03-23 FI FI891406A patent/FI891406A/fi not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB145808A (en) * | 1917-08-17 | 1920-07-08 | Franc Bergery | Improvements in and relating to bullets and other projectiles for small arms and artillery |
FR828459A (fr) * | 1937-01-27 | 1938-05-18 | Perfectionnements aux projectiles pour armes à feu | |
US2983225A (en) * | 1944-06-30 | 1961-05-09 | Nelson A Walker | Projectile |
GB737348A (en) * | 1953-04-18 | 1955-09-21 | Hans Otto Donner | Improvements in or relating to mortar projectiles |
CH545956A (de) * | 1972-05-13 | 1974-02-15 | Paul J Kopsch | Geschoss und Verfahren zu dessen Herstellung |
WO1983001300A1 (fr) * | 1981-10-06 | 1983-04-14 | Michael John Robins | Plomb pour une carabine a air, a gaz ou a ressort |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2786562A1 (fr) * | 1998-11-26 | 2000-06-02 | Jean Noel Letellier | Adaptateur pour balle sous calibree utilisee dans une arme a canon lisse |
EP1391683A2 (fr) * | 2002-08-21 | 2004-02-25 | R.A. Brands, L.L.C. | Sabot pour balle de fusil de chasse |
EP1391683A3 (fr) * | 2002-08-21 | 2004-08-18 | R.A. Brands, L.L.C. | Sabot pour balle de fusil de chasse |
US8261667B2 (en) | 2002-08-21 | 2012-09-11 | Ra Brands, L.L.C. | Lead attached sabot slug |
WO2009109817A1 (fr) * | 2008-03-03 | 2009-09-11 | Industrias El Gamo, Sa | Procédé permettant de fabriquer une balle pour une carabine ou un pistolet de sport et balle pour carabine ou pistolet de sport ainsi obtenue |
CN101981404A (zh) * | 2008-03-03 | 2011-02-23 | 加莫户外有限公司 | 一种运动步枪或猎枪的子弹及其制造方法 |
US7975590B2 (en) | 2008-03-03 | 2011-07-12 | Gamo Outdoor, Sl | Procedure for manufacturing a pellet for sporting rifle or sporting gun and pellet for sporting rifle or sporting gun thus obtained |
US8037796B2 (en) | 2008-03-03 | 2011-10-18 | Francisco Casas Salva | Procedure for manufacturing a pellet for sporting rifle or sporting gun and pellet for sporting rifle or sporting gun thus obtained |
CN101981404B (zh) * | 2008-03-03 | 2013-12-11 | 加莫户外有限公司 | 一种运动步枪或猎枪的子弹及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
WO1988002469A1 (fr) | 1988-04-07 |
DK285588A (da) | 1988-05-25 |
EP0323977A1 (fr) | 1989-07-19 |
BR8707824A (pt) | 1989-08-15 |
IL83991A0 (en) | 1988-02-29 |
FI891406A0 (fi) | 1989-03-23 |
GB8623153D0 (en) | 1986-10-29 |
DK285588D0 (da) | 1988-05-25 |
FI891406A (fi) | 1989-03-23 |
JPH02500855A (ja) | 1990-03-22 |
HUT50958A (en) | 1990-03-28 |
AU8024187A (en) | 1988-04-21 |
KR880701860A (ko) | 1988-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): ES |
|
17P | Request for examination filed |
Effective date: 19880915 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19900319 |
|
R18W | Application withdrawn (corrected) |
Effective date: 19900319 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SULLIVAN, LEROY JAMES |