Abstract:
A projectile (10) for firing from a barrel (12) of a firearm has an elongated tubular body (14) with a leading end (16), a trailing end (18) and a passage (100) extending through the body (14) and opening onto the leading end (16). An insert (102) is disposed in the passage (100). A cavity (20) is formed in the body (14) between the insert (102) and the trailing end (18) for holding a volume of propellant. A seal arrangement (22) is formed on the body (14) and located between and in- board of the leading end (16) and the trailing end (18). The seal arrangement (22) extends circumferentially about body to form a substantial seal against an inner circumferential surface of the barrel (12). A driving band (28) is supported on the body (14) between the seal arrangement (22) and the trailing end (18) and arranged to maintain substantial coaxial alignment of the body (14) of the projectile and the barrel (12) of the firearm while the projectile travels along the barrel (12). The driving band (28) has one or more flow paths (38) that enable fluid communication between opposite axial ends of the driving band (28).
Abstract:
The invention relates to a projectile (6) provided with a slipping rotating band (1) which is designed for firing from a weapon system with a rifled barrel. The rotating band (1) comprises an inner ring (2) and an outer ring (3) that seals against the barrel. The outer ring is fitted on the outer surface of the inner ring and the inner ring is slippably fitted on the projectile. The rotating band (1) is configured to remain fitted on the projectile (6) from launcher to target by virtue of the fact that the inner ring (2) is made of fibre-reinforced polymer composite or particle-reinforced polymer composite, or fibre-reinforced metal matrix composite or particle-reinforced metal matrix composite. The invention also relates to a slipping rotating band (1) and to a method for producing a slipping rotating band (1) in which the outer ring (3) is affixed to the inner ring (2).
Abstract:
The invention concerns a bullet (10) for use with a firearm. The bullet includes an elongate body (12) which has a maximum diameter which corresponds substantially to a groove diameter of a barrel (100) of the firearm from which the bullet is intended to be fired. The bullet (10) further has a front portion (12.1), a rear portion (12.2) and a substantially cylindrical central portion (14) located between the front and rear portions. A bearing area (16) is provided substantially in the central portion (14) of the body and a major portion of the bearing area is threaded. The tread forms a continuous spiral groove (17) along a major portion of the surface of the bearing area in order to reduce the amount of material through which the rifling (102) of the barrel (100) has to cut when the bullet (10) is fired from the firearm.
Abstract:
Die Erfindung betrifft eine Mörsergranate (1) mit einer umlaufenden ringförmigen Vertiefung (5), in welcher ein aus einem elastischen Material bestehender Dichtungsring (6) gelagert ist, der beim Abschuss der Mörsergranate (1) aus einem Mörser durch Beaufschlagung von Treibladungsgasen expandiert und gegen die innere Oberfläche des Waffenrohres des Mörsers gepresst wird. Um sowohl die Bildung eines heckseitigen Luftpolsters im Mörserrohr beim Laden der Mörsergranate (1) zu verhindern als auch eine definierte Aufweitung des Dichtungsringes (6) beim Abschuss der Mörsergranate (1) sicherzustellen, schlägt die Erfindung vor, dass der Dichtungsring (6) durch ein ringförmiges Element (9) stabilisiert wird. Hierzu besteht das ringförmige Element (9) aus einem Material, welches derart gewählt ist, dass das ringförmige Element (9) den Dichtungsring (6) beim Laden der Mörsergranate (1) in einer Ruhelage hält, so dass die Mörsergranate (1) frei in das Waffenrohr fallen kann. Hingegen behindert das ringförmige Element (9) beim Abschuss der Mörsergranate (1) die Expansion des Dichtungsringes (6) nicht oder nicht wesentlich.
Abstract:
A projectile which contains a heavy core (4) surrounded by a jacket, said jacket being of plastics and is formed by two parts (1, 2) with a circumferential partition. A metal band (3) is mounted around the partition between the jacket parts and forms a guide band, and the jacket parts (1) are glued to the core (4).
Abstract:
The invention relates to a projectile in which a driving band (5), which is placed on a projectile body (1), is produced from a copper-free fiber composite material. Said driving band (5) is shrunk or glued onto the projectile body (1) and comprises elevations (4), which are matched to the angle of twist ( alpha ) of the riflings of a projectile tube and serve as a seal for the pressurized propellant gases. This makes it possible to prevent copper from entering the gun barrel and in the surrounding area thereof when firing the projectile. The driving band (5) can be produced in a cost-effective manner using prepreg techniques and can be easily shrunk onto the intensively cooled projectile body.
Abstract:
An obturator (210, 310, 410) is provided for a projectile (10) launched from a gun barrel (110). The projectile has a mid-body annular groove (22) that includes a shaped surface (26, 30). The obturator includes an annular ring having an inner surface (216, 416) in contact with the shaped surface of the annular groove of the projectile. The annular ring further includes an outer surface (214, 414). When the projectile is in the gun barrel, the outer surface of the annular ring contacts an inner surface (142) of a bore (140) of the gun barrel. The radial distance between the inner surface and the outer surface of the annular ring substantially equals or exceeds the radial distance between the shaped surface of the annular groove and the inner surface of the bore of the gun barrel at at least one point when the projectile is positioned in the barrel. The aft surface (218, 418) may comprise a curved or linearly tapering surface that directs the charges gases created when the projectile is launched such that the gases expand or inflate the obturator. The inner surface further includes a ramp surface (220, 320, 420) allowing the obturator to slide up a ramp (30) of the shaped surface inside the annular groove and the expand. This feature restricts a flow of charge gases from an aft end (18) of the projectile to a forward end (16) of the projectile when the projectile is launched from the gun barrel.
Abstract:
This invention provides a handgun assembly such as a rifle (9) which has a barrel assembly (24) including a cluster of barrels each supporting a longitudinal arrangement of aerodynamically shaped, directional projectiles (15) and interposed propellant charges (16) whereby the barrel assembly has longitudinal arrays or layers of projectiles and interposed propellant charges. Ignition means is provided for selectively igniting the propellant charges (16) including for simultaneously igniting the propellant charges in the leading layer of projectiles to provide a shotgun-like blast.
Abstract:
The invention provides a long range bullet. The bearing surface of the body of the bullet is provided with one or more annular narrows of which the combined length is at least one third of the length of the bearing surface of the bullet and which depth is between 0.005 mm up to half of the groove depth of a barrel in which the bullet is intended to shoot.
Abstract:
Die Erfindung betrifft eine Patrone (10) mit einem Geschoss (11) und einer von hinten auf das Geschoss (11) aufgezogenen Hülse (12) mit einem Hülsenmund (13) am vorderen Ende, wobei das Geschoss (11) eine Spitze (1) aufweist und diese Spitze (1) heckseitig in ein umlaufendes vorderes Führungsband (4), welches den Geschossaußendurchmesser definiert, übergeht und unmittelbar angrenzend an dieses vordere Führungsband (4) in Richtung Geschossboden (14) ein sich in Axialrichtung des Geschosses (11) erstreckender umlaufender Hülsenmundaufnahmeraum (15) im Geschoss (11) angeordnet ist, in den der Hülsenmund (13) eingreift. Damit beim Schuss der rotationslose Geschossweg auf ein Minimum reduziert ist und der Gasdruck frühzeitig aufgebaut wird, wird vorgeschlagen, dass zwischen dem vorderen Führungsband (4) und dem Hülsenmund (13) ein sich in Axialrichtung des Geschosses (11) erstreckender freiliegender Teilabschnitt (16) des Hülsenmundaufnahmeraums (15) angeordnet ist, d. h. der Hülsenmund (13) füllt den Hülsenmundaufnahmeraum (15) in Richtung Bug des Geschosses (11) nicht vollständig aus.