25 results about "Caliber" patented technology

A magazine for large ammunition includes a plurality of ammunition holders, with each ammunition holder being configured to operatively interface with a single round of ammunition. Each ammunition holder comprises an outer body, and an inner body configured to interface with the single round of ammunition. The inner body is transitional relative to the outer body between a first position and a second position, with the inner body extending out of the outer body as the inner body transitions from the first position toward the second position. The inner body is configured to release the single round of ammunition in response to the inner body being transitioned to the second position. The magazine additionally includes a plurality of links, with each link being coupled to a pair of the plurality of ammunition holders.

The present invention relates to a bullet, in particular a deformation bullet, such as a hollow-point bullet, for example for police and / or authority ammunition, in particular with a caliber in the range of 4.6 mm to 20 mm, comprising a bullet body with a nose wall delimiting a central cavity which is open towards the surroundings, wherein the nose wall is notched and / or the cavity is produced by cold forming in such a way that on impact of the bullet on a target the nose wall is deformed so that it is widened by less than 90°, in particular less than 60°, in particular less than 45° or less than 30°, in relation to the longitudinal axis of the bullet.

The invention relates to a floating double-powder-chamber balance gun structure which comprises a front body tube, a first powder chamber, a second powder chamber, bullets, a balance body and a rear body tube. The front body tube is a motion section of the projectile; the first powder chamber is used for filling a first main charge; the second powder chamber clings to the balance body and is used for filling a second main charge; the projectile is a main launcher; and the balance body is used for balancing recoil force generated by launching the projectile. Compared with the prior art, through the arrangement of the first powder chamber and the second powder chamber, the initial running speed of the projectile is increased on the premise that the maximum in-chamber pressure of the balance gun is not increased; according to the invention, simple structure and principle are applied, the problem of high bore pressure caused by high initial velocity index of a large-diameter barrel weapon can be solved, safe test launching of the barrel weapon is realized, and the test device provided by the invention is simple in structure, simple to operate, safe, reliable, economical and practical.

The invention relates to a production method for medium and large caliber projectile bodies. The invention particularly relates to a method for producing medium and large caliber projectile bodies in a shorter time and with fewer operations.

A system and method for the determination of an optimal ammunition round based upon a barrel length of a given firearm and resulting ammunition. The ammunition is preferably provided in a single load for a given caliber and bullet optimized for a range of barrel lengths, wherein a user can select a preferred single load for a given firearm regardless of barrel length.

The present invention relates to a gun barrel 10 with a hinged caliber ring 20, wherein the caliber ring 20 is movable from a first position to a second position, wherein in the second position the caliber ring 20 reduces the gap between the wall of the gun barrel 10 and the weapon 50 arranged in the gun barrel 10, wherein in the first position the caliber ring 20 rests against the wall of the gun barrel 10, characterized in that the caliber ring 20 is made in one piece, wherein the caliber ring 20 is pivotable about a horizontal axis of rotation 22 between the first position and the second position.

The utility model provides a GIS (Gas Insulated Switchgear) butt joint shell. The GIS butt joint shell comprises a barrel body, a first flange and a second flange, the caliber of the barrel body gradually changes in the axial direction of the barrel body; the first flange is fixedly arranged at the opening position of one end of the barrel body, and the second flange is fixedly arranged at the opening position of the other end of the barrel body; wherein the aperture of the first flange is larger than that of the second flange, and a connector of the first flange and a connector of the second flange are both eccentrically arranged. According to the butt joint shell, the caliber of the barrel body is gradually changed in the axial direction of the barrel body, so that the caliber of the barrel body can adapt to flanges with different calibers, and the shells with different calibers at the two ends are in butt joint. Moreover, through the eccentric design of the flanges fixedly connected with the two ends of the barrel body, butt joint of the shells with the offset at the two ends can be achieved, a displacement compensation structure does not need to be additionally arranged or an L-shaped bus does not need to be used for butt joint, and therefore the complexity of the shells after butt joint is effectively reduced.

A magazine for large ammunition includes a plurality of ammunition holders, with each ammunition holder being configured to operatively interface with a single round of ammunition. Each ammunition holder comprises an outer body, and an inner body configured to interface with the single round of ammunition. The inner body is transitional relative to the outer body between a first position and a second position, with the inner body extending out of the outer body as the inner body transitions from the first position toward the second position. The inner body is configured to release the single round of ammunition in response to the inner body being transitioned to the second position. The magazine additionally includes a plurality of links, with each link being coupled to a pair of the plurality of ammunition holders.

1. Name of the Design Product: Ammunition Packaging Box. 2. Use of the Design Product: For the storage, transportation, loading and unloading of ammunition with a single caliber of 155 mm. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View.

The invention relates to an inner ballistic trajectory design method for a floating series double-chamber balance gun. The inner ballistic trajectory design method comprises the steps of dividing an inner ballistic trajectory process period, establishing a gunpowder combustion model in a main chamber and an auxiliary chamber, establishing a projectile motion model, establishing a balance body motion model, establishing an auxiliary chamber motion model and establishing an inner ballistic trajectory energy conservation model. Based on a novel floating series-connection double-chamber structure for a balance gun, construction of an inner ballistic model is completed, and optimization design is conducted on the chamber structure and charging parameters. The problem that a large-diameter barrel weapon generates high bore pressure under the high initial speed index can be effectively solved. On the premise that the maximum chamber pressure is not increased, secondary acceleration of the projectile is achieved, and the outlet speed and the flight performance of the projectile are remarkably improved. According to the method, an important theoretical reference and a practical technical method are provided for design and development of the high-initial-speed large-caliber balance gun in the future, and the method has wide application prospects and great military value.

A multi-caliber firearm includes a barrel extension configured to connect to an interchangeable barrel that is selected from at least two predetermined caliber sizes. An interchangeable magazine well receives a magazine that is selected to house cartridges from the predetermined caliber sizes. The magazine well includes a first end facing towards the stock and a second end facing towards the barrel extension. A bolt carrier group includes a bolt carrier and a bolt. A reverse movement unloads a used cartridge from the bolt and a forward movement loads a new cartridge from the magazine. The bolt carrier group receives an interchangeable bolt that is selected to load and unload one of the predetermined caliber sizes. The bolt includes a longitudinal cartridge retaining notch facing towards the magazine. The cartridge retaining notch is configured to retain the new cartridge in the magazine during the reverse movement.

The invention relates to a coding security system for firearms (1, 1a) of the same type of weapon but different calibers to prevent the exchange of at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a), comprising: - at least one first firearm (1) of a first caliber or at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) thereof, - at least one second firearm (1a) with a second, different caliber or at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) thereof, - at least one first safety device on the first and / or second firearm (1, 1a) or the at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a) thereof, designed to prevent the attachment of at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) of the at least one first firearm (1) to the at least one second firearm (1a), and at least one second safety device on the first and / or second firearm or the at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) thereof, which is designed to prevent the attachment of at least one weapon component (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) of the at least one second firearm (1a) to the at least one first firearm (1). The invention further relates to weapon components (2, 2a, 3, 3a, 7, 7a, 8, 8a, 11, 11a, 19, 19a, 37, 37a) and firearms (1, 1a) for use in the coding security system.

The invention discloses a method for comprehensively measuring the inner diameter and the defect size of a large-diameter artillery, which solves the measurement of parameters such as the inner diameter, the defect depth and the area of a large-diameter artillery barrel by penetrating a large-diameter artillery diameter measuring and peeping bore device into the barrel in a laser CCD (Charge Coupled Device) circular scanning diameter measuring and miniature binocular image three-dimensional measuring mode. And data support is provided for the processes of artillery barrel design, research and development, maintenance and the like.

1. Name of the product in this design: Automatic Rifle (7.62 mm Caliber Type A). 2. Purpose of this design: An automatic rifle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a movable support for a large-diameter balance gun and a using method of the movable support. The movable support is used for solving the problems that the large-diameter balance gun is low in short-distance movement flexibility, high in cost, long in consumed time and large in work amount. The support comprises a concrete base, a steel plate, an iron box, wedges and a frame body, the steel plate is fixed and matched in a guide groove of the concrete base, the iron box with a fixed pulley and a connecting ring is arranged on the steel plate, the iron box is provided with a plurality of groups of two crossed and overlapped wedges, the wedges are provided with the frame body for bearing a gun body, bolts vertically penetrate through through holes in the two sides of the frame body, and nuts concentric with the bolts are arranged. During use, the iron box is driven to move to a target position through tension, the jack is matched with the wedge to adjust the height of the frame body, and the bolt calibrates the frame body to be horizontal. The device does not need to depend on large engineering equipment, is flexible to move, can quickly complete position adjustment and fixation, reduces the comprehensive cost, meets different test target position requirements, adopts conventional components, is low in manufacturing cost, is high in practicability, and is suitable for large-caliber balance gun target range test scenes.

The present invention relates to a projectile, in particular a full metal jacket projectile or partial metal jacket projectile, for ammunition, for example with a caliber of at most 20 mm, in particular of at most 13 mm, comprising an at least partially hollow or solid projectile body with a circumferential and / or longitudinal groove arranged on its inner and / or outer surface, which transitions seamlessly into the adjacent inner and / or outer surfaces of the projectile body and / or has a radius of at least 0.05 mm.

A fin deployment apparatus for stowable fins that comprises a sub-caliber fin hub configured to be rotatably coupled to an aft portion of a projectile, the fin hub having a plurality of flat, planar exterior surface regions, each surface region having pivotably coupled thereto a respective set of fins. Each fin in a stowed position is disposed upon a respective exterior surface region of the fin hub and a respective exterior cavity or recess of the projectile. Each fin is urged toward a deployed position by a respective torsion spring, which operates to deploy the fin after the projectile has left the barrel or tube. The sub-caliber fin hub is further configured to be keyed to the aft portion of the projectile during storage and while within the bore of the barrel or tube in response to urging from a propellant, the fin hub when keyed thereto being rotatably locked with the projectile forebody

1. Name of the product in this design: Automatic Rifle (5.56 mm Caliber Type C). 2. Purpose of this design: An automatic rifle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A projectile may be formed having a caliber in the range from 4.6 mm to 20 mm for ammunition. The projectile may be a deformation bullet, a partial fragmentation bullet, a partial or full jacket bullet, a hard-core bullet or tracer bullet. The projectile may be formed by cold forming, in particular extrusion, from an intermediate with a tube section of substantially constant wall thickness, which constitutes at least 50% of the longitudinal extension of the intermediate.

A cylindrical machine gun ammunition carrier drum device with hand crank and spindle, which allows operator to regulate belt-fed ammunition at a proper cyclic rate of fire and reload linked ammunition in an efficient, accelerated manner. This retract and release belt-fed ammunition method would provide proper tension and uniformity to the linked rounds, preventing the weapon from malfunctioning and improve cyclic dispersion of ammunition. This method applies to all calibers of belt-fed personal and crew-served automatic weapons. The external hand crank and internal spindle would work in unison to recover the belt if it is yanked from the cylindrical drum container prematurely. A flexible warning device ribbon connected by ammunition links would ensure all rounds are expended from within the drum when abridged from spindle to belt. Additionally, this internal warning device can be linked between belts at operator's preference.

The present invention relates to a cartridge case for ammunition, in particular with a caliber of less than 20 mm, in particular less than 13 mm, comprising a rotationally symmetrical case shell and a base piece fastened thereto by cold forming for receiving a primer cap, wherein the material of the base piece has a greater modulus of elasticity than the material of the case shell.

1. Name of the product in this design: Automatic Rifle (7.62 mm Caliber Type B). 2. Purpose of this design: An automatic rifle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention provides a method for measuring the bore caliber of a gun barrel. The specific process is as follows: Based on the inner wall contour image of a standard ring gauge, a three-dimensional laser point cloud of the standard ring gauge is obtained; a point P is randomly selected in the three-dimensional laser point cloud, and multiple planes containing point P are created to intersect the three-dimensional laser point cloud; for each intersecting elliptical cross-section, the point with the largest distance from point P is selected, and multiple selected points form a point set N; the point with the smallest distance from point P in the point set N is obtained, and the smallest distance is used as the pixel distance of the standard ring gauge, and the physical distance corresponding to a single pixel is calculated; based on the bore image of the gun barrel, its three-dimensional laser point cloud is obtained, and the point cloud of the plane containing the point with the smallest distance in the bore image of the gun barrel is obtained for curve fitting, and the diameter of the inscribed circle of the curve is calculated; based on the physical distance corresponding to a single pixel and the pixel diameter of the inscribed circle of the bore, the inner diameter of the bore is calculated, thereby realizing the measurement of the bore caliber.

The invention relates to a large caliber weapon comprising a breech assembly (4) including a breechblock (5) integral with a weapon tube (3), a breechblock support (6) movable in axial translation relative to the breechblock (5) and coupled to a breech head (7), characterized in that the breech assembly (4) further comprises a plurality of loading chambers (8) each intended to receive a round, a chamber (8) displacement mechanism (9) configured to support the chambers (8) and successively place one of the chambers (8) in a firing position, namely between the breechblock (5) and the breech head (7) and in alignment with the longitudinal axis of the weapon tube (3), and at least one other chamber (8) in a feeding position, in which at least one chamber (8) is capable of receiving a round through its rear end (8b),and a locking mechanism (10) configured to move the breech head (7) and the chamber (8) in the firing position between an unlocked position and a locked position, wherein the chamber (8) is closed at its rear end (8b) by the breech head (7) and opens at its front end (8a) into the weapon tube (3). Figure to be published with the abbreviation: Figure 1.

A bullet for ammunition, in particular with a caliber of at most 20 mm or at most 13 mm, may include a metallic bullet body and a surface coating with a thickness of more than 100 μm forming at least sectionally an outer skin of the bullet.