Abstract:
A non-discarding sabot projectile consists of a projectile core; a lower core casing for insertion into a bore of a muzzleloader firearm; and an upper core cap fastly engaged with the lower core casing. Such an engagement between the upper core cap and the lower core casing defines a jacket so that, upon assembly of the lower core casing and upper core cap, the projectile core is encapsulated within the jacket.
Abstract:
본 발명은 반 발파시 폭약의 충진량을 정량화함과 아울러 발파시 발생하는 진동 및 소음을 감소시킬 수 있는 안포폭약 충진 케이스 및 이를 이용한 암석 발파공법에 관한 것이다. 이를 실현하기 위한 본 발명의 안포폭약 충진 케이스는 안포폭약(1)이 충진될 수 있도록 내부에 수납공간(S1)이 마련되며 상측이 개방되는 튜브형상으로 이루어지되 발파공(2)에 비해 작은 직경으로 형성되어 상기 발파공(2)에 삽입되는 포켓하우징(110)을 포함하여, 암석발파에 사용되는 입자상의 안포폭약(1)을 정량화한 것을 특징으로 한다. 안포폭약 충진 케이스를 이용한 암석 발파공법에 있어서, 암석의 파쇄 계획을 수립하는 단계; 상기 발파대상 암석에 복수의 발파공(2)을 천공하는 단계; 상기 암석을 파쇄하는데 필요한 소정의 안포폭약(1)을 튜브형상의 케이스(100)에 충진한 후 상기 케이스(100)를 상기 발파공(2) 내에 삽입하는 단계; 상기 삽입된 케이스(100)의 상측에 뇌관(310)이 연결된 전폭약포(300)를 삽입하는 단계; 상기 발파공(2)의 남은 공간을 전색물(320)로 전색하는 단계; 상기 뇌관(310)을 기폭시켜 상기 발파대상 암석을 파쇄하는 단계;를 포함하는 것을 특징으로 한다.
Abstract:
An ammunition cartridge comprised of a projectile inserted in, and mechanically connected to, a metal cartridge case assembly having a propulsion chamber and a base, and an energetic propellant disposed in the propulsion chamber, includes a base plug in which is mounted an igniter with an energetic primer. During manufacture of the cartridge, a fusible support ring is incorporated into a metal cavity. The cartridge base includes a cavity allowing the fusible material to solidify at ambient temperatures. When exposed to heat from an external fire, the fusible support plug liquefies losing its strength and subsequently, when a propellant or primer off-gasses or auto-ignites the pressure from the reaction ejects a metal plug or lid from the cartridge case base, creating a void that allows the propellant and primer to combust in an unconfined space.
Abstract:
A method of supplying a rifle with cartridges provides classes by specific and precisely graduated increments of propellant load, or by formulation of propellant. A granule portioning system for loading cartridges or other material includes volumetric measuring chambers capable of adjusting the volume of the chamber automatically to a programmed target volume and arranged to receive a first portion of granules into the chamber to fill the target volume. A transport system automatically delivers the target volume of granules from the chamber to a weighing device. A granule metering device dispenses granules and, depending on a signal from the weighing device that the first portion of granules is below a programmed target weight, dispenses granules to the first portion to increase the weight to achieve a second portion having the target weight.
Abstract:
Um ein Rutschen des Liners (3) auf einer Sprengstoffladung (4) in einem Geschoss (1) zu verhindern ist vorgesehen, dass wenigstens eine Wulst oder Nocken (5, 6) im Liner (3) eingebunden ist, welche nach innen geformt sich an der Sprengladung (4) verhaken kann.
Abstract:
A three component bullet (160) with an improved core retention feature (165) and a method of manufacturing the bullet (160) includes a cylindrical jacket (100) having an open end (105) and a closed end containing a malleable metal core (110) which is forced into a forming die having a bottleneck shaped interior, wherein the outside diameter of the open-ended forward portion of the jacket (100) is smaller than the outside diameter of its closed rearward portion. The open end (105) of the pre-form (114) may be dropped through or forced through a malleable non-rigid locking band (130). A relatively tight-fitting punch (120) enters the open end (105) of the pre-form (114), to radially swell the core (110) and subsequently portions of the jacket (100) fore and aft of the non-rigid locking band (130), thereby securing the non-rigid locking band (130) in place. An inwardly-extending annular band of jacket material (100) embeds itself into the core material (110) to lock the core (110) inside the jacket (100).
Abstract:
One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole.
Abstract:
A reduced collateral damage bomb (RCDB) bomb casing is described and disclosed along with the system and method for making it. The RCDB bomb casing may be formed from conventional or penetrating warhead bomb casings. The RCDB bomb casing has a filler material/materials disposed on the interior walls that will assist in controlling the collateral damage caused by the finished bomb but not prevent the appropriate destructive power being delivered to a selected target.
Abstract:
Usual hunting rifle projectiles consist of one or more cores made of the toxic heavy metal lead which are enclosed by a case made of a substantially harder material. An uncontrolled splitting apart of the projectile leads to the following cited negative results: to a remaining body of a non-predeterminable mass; to a failure of the projectile to exit the game animal body in the case of an unfavorable course of trajectory in the game animal body and due to lower penetration force; to a depth action that is too low in the instance of a strong game animal; to a negative reaction of the game animal, thus a delayed or insufficient effect, and to possible searches as a result thereof. The case and core can partially or completely separate at projectile velocities that are unfavorable, that is to say, at velocities that are too high, thus resulting in an unsatisfactory target ballistic effect. For this reason, the invention provides that the core (3) and the case (4) comprise, in addition to non-positive joining, a positive and/or material fit joining (7). This joining can be effected by screwing, bonding using adhesives, soldering or by welding.
Abstract:
The present invention relates to an ammonium nitrate fuel oil explosive filling case and to a method for rock blasting using same for standardizing the amount of explosive to be filled and blasting a base rock and reducing vibration and noise when blasting. To this end, the ammonium nitrate fuel oil explosive filling case of the present invention comprises: an accommodation space (S1) inside the filling case so that the ammonium nitrate fuel oil explosive (1) can be filled therein; and a pocket housing (110) formed in a tube shape with an open upper portion, having a smaller diameter than a blasting hole (2) and inserted into the blasting hole (2), wherein the ammonium nitrate fuel oil explosive (1) particles used for blasting rocks are standardized. The method for rock blasting using the ammonium nitrate fuel oil filling case comprises the following steps: establishing a plan for shattering a rock; drilling a plurality of the blasting holes (2) on the rock to be blasted; filling a tubular case (100) with a predetermined amount of the ammonium nitrate fuel oil explosive (1) required for shattering the rock, and inserting the case (100) into the blasting hole (2); inserting a priming explosive (300) having a detonator (310) connected thereto into the inserted case (100); tamping the remaining space in the blast hole (2) with stemming material (320); and igniting the detonator (310) to shatter the rock to be blasted.