EP0640810A1 - Shot cartridge - Google Patents
Shot cartridge Download PDFInfo
- Publication number
- EP0640810A1 EP0640810A1 EP93113557A EP93113557A EP0640810A1 EP 0640810 A1 EP0640810 A1 EP 0640810A1 EP 93113557 A EP93113557 A EP 93113557A EP 93113557 A EP93113557 A EP 93113557A EP 0640810 A1 EP0640810 A1 EP 0640810A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shot
- charge
- powder charge
- container
- concentrator
- 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- Withdrawn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
Images
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
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B7/00—Shotgun ammunition
- F42B7/02—Cartridges, i.e. cases with propellant charge and missile
- F42B7/04—Cartridges, i.e. cases with propellant charge and missile of pellet type
Definitions
- the present invention relates to shot cartridges, and preferably to updating sporting shot-gun cartridges.
- he powder charge mass or part not adjacent to the shot charge is higher than the mass or part of the powder charge adjacent to the shot charge.
- Both powder charge parts are separated from each other with a diaphragm with at least one hole.
- the relation between these two powder charge part masses is 2 to 1. It is sufficient to maintain this relation with an accuracy of ⁇ 0.2 or 20 %. With this ratio, the required shot muzzle velocity is achieved such that steel shots may be used instead of lead ones.
- the shot charge may be made from steel.
- the cartridge design divides a powder charge into two parts 1 and 3 using a polyethylene diaphragm 2 with a small diameter hole, thus ensuring a time delay for ignition of the charge's second part 3.
- the wad 4 and shot set, or shot container 6, and the charge's second part 3 are accelerated.
- the powder gases first heat and then ignite the second part of the powder charge 3 through the diaphragn hole 2. That is, the impulse of the powder charge pressure on the shot charge is increased without elevating the maximum breach piece pressure, and consequently, the velocity of the shot charge increases.
- the plastic container-concentrator is made up of two bushes 7 and 8 cut along their full length over their generatrixes and placed so that their cuts do not coincide. In this case after leaving the barrel, the shot charge is freed of the container a short distance from the muzzle's end face.
- a variant of the cartridge design shown in Fig. 2 consists of a shot container made as a sleeve 9.
- the open end of the sleeve 9 faces the powder charge, while the closed end is fitted with an asymmetrical cup 10.
- the container 6 leaving the barrel will begin to turn over under the aerodynamic moment effect and after turnover the steel shots leave the sleeve.
- the time of the container turn-over may be adjusted with the help of the asymmetric cup 10.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
A shot cartridge comprises a cartridge-case, a cap, a powder charge (1, 3) and a shot charge (5), a wad (4) and a shot concentrator. The powder charge (1, 3) is divided by a diaphragm (2) with a hole, the diaphragm (2) being placed so that the mass of the powder charge part (1) distal from the shot charge (5) is higher than the mass of the powder charge part (3) close to the shot charge (5). The shot concentrator is made as a container (6).
Description
- The present invention relates to shot cartridges, and preferably to updating sporting shot-gun cartridges.
- The most important aim of improving sporting shot-gun cartridges is to increase the shot muzzle velocity which makes it possible to use steel shots instead of lead ones. Besides the economical advantages, ecological problems are also solved; this sporting shot-gun ammunition does not contain toxic lead. At the same time, increasing the powder charge would mean increased gas pressure in the shot-gun barrel which poses a certain danger; also the steel shots must be isolated from the barrel surface as they move through the barrel.
- It is an object of the present invention to provide a shot cartridge which is better suitable for steel shots, without incurring their known disadvanges.
- This object is settled by the feature given in
claim 1. Advantageous developments may be taken from the subclaims. - According to the invention, he powder charge mass or part not adjacent to the shot charge is higher than the mass or part of the powder charge adjacent to the shot charge. Both powder charge parts are separated from each other with a diaphragm with at least one hole. Preferably, the relation between these two powder charge part masses is 2 to 1. It is sufficient to maintain this relation with an accuracy of ± 0.2 or 20 %. With this ratio, the required shot muzzle velocity is achieved such that steel shots may be used instead of lead ones. Correspondingly, the shot charge may be made from steel.
- When both a bush forming a shot concentrator and the diaphragm aremade from polyethylene, ecological advantages arise.
- According to the embodiment shown in Fig. 1, the cartridge design divides a powder charge into two
parts polyethylene diaphragm 2 with a small diameter hole, thus ensuring a time delay for ignition of the charge'ssecond part 3. As the first part of thepowder charge 1 is ignited, thewad 4 and shot set, orshot container 6, and the charge'ssecond part 3 are accelerated. During acceleration, the powder gases first heat and then ignite the second part of thepowder charge 3 through thediaphragn hole 2. That is, the impulse of the powder charge pressure on the shot charge is increased without elevating the maximum breach piece pressure, and consequently, the velocity of the shot charge increases. - In order to prevent damage to the inner surface of the barrel due to the hard steel shot motion, use of a plastic container-concentrator is proposed. The plastic container-concentrator is made up of two
bushes - A variant of the cartridge design shown in Fig. 2 consists of a shot container made as a
sleeve 9. The open end of thesleeve 9 faces the powder charge, while the closed end is fitted with anasymmetrical cup 10. Thecontainer 6 leaving the barrel will begin to turn over under the aerodynamic moment effect and after turnover the steel shots leave the sleeve. The time of the container turn-over may be adjusted with the help of theasymmetric cup 10. - Since the
steel shots 5 cover a large part of the trajectory in a container, a high velocity near the target is ensured and the close grouping of firing is increased.
Claims (5)
- Shot cartridge comprising a cartridge-case, a cap, a powder charge (1, 3) and a shot charge (5), a wad (4) and a shot concentrator, characterized in that the powder charge (1, 3) is divided by a diaphragm (2) with a hole, the diaphragm (2) being placed so that the mass of the powder charge part (1) distal from the shot charge (5) is higher than the mass of the powder charge part (3) close to the shot charge (5), and that the shot concentrator is made as a container (6).
- Shot cartridge according to claim 1, characterized in that the mass of the part (1) adjacent to the cartridge-case bottom and the mass of the part (3) adjacent to the shot charge (5) are related to each other by a 2 to 1 ratio with accuracy of ± 0.2.
- Shot cartridge according to claim 1, characterized in that the shot concentrator container (6) comprises an obturating filler piece made as a disc, with symmetric cups attached to its ends, one of which is fitted with a filler piece, preferably made from pressboard, and two plastic bushes (7, 8) cut along their full length over their generatrixes one bush (8) being tightly inserted into the other (7) so that their cuts so not coincide.
- Shot cartridge according to claim 1, characterized in that the concentrator container (6) is made as a sleeve (9) whose open end faces the powder charge (1, 3) and bears against the wad (4), while its closed end is fitted with an asymmetric annular cup (10).
- Shot cartridge according to claim 1, characterized in that the length of the asymmetric annular cup (10) is not less than 1/4 of the container (6) length.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93113557A EP0640810A1 (en) | 1993-08-25 | 1993-08-25 | Shot cartridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93113557A EP0640810A1 (en) | 1993-08-25 | 1993-08-25 | Shot cartridge |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0640810A1 true EP0640810A1 (en) | 1995-03-01 |
Family
ID=8213206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93113557A Withdrawn EP0640810A1 (en) | 1993-08-25 | 1993-08-25 | Shot cartridge |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0640810A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0987512A3 (en) * | 1998-09-16 | 2000-08-16 | Cheddite Italia S.p.A. | Long-distance shot cartridge |
CN1059737C (en) * | 1996-09-26 | 2000-12-20 | 周祯德 | Bird-dispelling cartridge of hunting rifle and making method thereof |
DE102018001031A1 (en) * | 2018-02-08 | 2019-08-08 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Apparatus and method for controlling small drones |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191501431A (en) * | 1914-01-28 | 1900-01-01 | Fargas De Casanovas Baltasar | Improvements in Small Shot Projectiles for Sporting Guns and Fowling Pieces. |
FR367414A (en) * | 1905-06-26 | 1906-10-29 | Andreas Wilhelm Schwarzlose | Progressive cartridge for firearms |
FR1210609A (en) * | 1954-08-13 | 1960-03-09 | Activa Ibera | Improvements in the arrangement, composition and use of powder fillers |
FR1255993A (en) * | 1960-02-01 | 1961-03-17 | Improvements to firearm cartridges | |
FR1526972A (en) * | 1967-01-11 | 1968-05-31 | Improvements to concentrators for cartridges and ammunition | |
US3507220A (en) * | 1969-01-02 | 1970-04-21 | Clifton M Mcclure | Ammunition round |
FR2063728A5 (en) * | 1969-10-28 | 1971-07-09 | Piegay Marcel | Wad for sporting cartridges |
US3648616A (en) * | 1969-09-10 | 1972-03-14 | Omark Industries Inc | Multistage power load |
GB1273208A (en) * | 1969-07-29 | 1972-05-03 | Arama Sa | Improvement in or relating to ballistic devices and projectiles |
US3721194A (en) * | 1970-04-13 | 1973-03-20 | C Weston | Diversifying the shooting characteristics of shotguns |
US3724378A (en) * | 1969-05-13 | 1973-04-03 | R Knight | Shot concentrator |
DE8422731U1 (en) * | 1984-07-31 | 1985-11-28 | Diehl GmbH & Co, 8500 Nürnberg | cartridge |
-
1993
- 1993-08-25 EP EP93113557A patent/EP0640810A1/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR367414A (en) * | 1905-06-26 | 1906-10-29 | Andreas Wilhelm Schwarzlose | Progressive cartridge for firearms |
GB191501431A (en) * | 1914-01-28 | 1900-01-01 | Fargas De Casanovas Baltasar | Improvements in Small Shot Projectiles for Sporting Guns and Fowling Pieces. |
FR1210609A (en) * | 1954-08-13 | 1960-03-09 | Activa Ibera | Improvements in the arrangement, composition and use of powder fillers |
FR1255993A (en) * | 1960-02-01 | 1961-03-17 | Improvements to firearm cartridges | |
FR1526972A (en) * | 1967-01-11 | 1968-05-31 | Improvements to concentrators for cartridges and ammunition | |
US3507220A (en) * | 1969-01-02 | 1970-04-21 | Clifton M Mcclure | Ammunition round |
US3724378A (en) * | 1969-05-13 | 1973-04-03 | R Knight | Shot concentrator |
GB1273208A (en) * | 1969-07-29 | 1972-05-03 | Arama Sa | Improvement in or relating to ballistic devices and projectiles |
US3648616A (en) * | 1969-09-10 | 1972-03-14 | Omark Industries Inc | Multistage power load |
FR2063728A5 (en) * | 1969-10-28 | 1971-07-09 | Piegay Marcel | Wad for sporting cartridges |
US3721194A (en) * | 1970-04-13 | 1973-03-20 | C Weston | Diversifying the shooting characteristics of shotguns |
DE8422731U1 (en) * | 1984-07-31 | 1985-11-28 | Diehl GmbH & Co, 8500 Nürnberg | cartridge |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1059737C (en) * | 1996-09-26 | 2000-12-20 | 周祯德 | Bird-dispelling cartridge of hunting rifle and making method thereof |
EP0987512A3 (en) * | 1998-09-16 | 2000-08-16 | Cheddite Italia S.p.A. | Long-distance shot cartridge |
DE102018001031A1 (en) * | 2018-02-08 | 2019-08-08 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Apparatus and method for controlling small drones |
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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): AT CH DE ES FR GB IT LI SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19950902 |