Abstract: A method for increasing effectiveness of mine clearance when clearing landmines. A vehicle-mounted, mechanically driven, rotary cultivator type demining tool is provided. The demining tool includes a horizontal shaft, a demining unit rotating around the horizontal shaft, a plurality of parallel demining discs located at a distance from each other and rotating around the shaft which when the demining tool is in operation cut down into an upper ground layer to a pre-determined depth to cause mines in their path to detonate or to fragment into harmless fragments, and impact devices located between the demining discs for working the upper ground layer between the demining discs such that the impact devices impact with the upper ground layer between each pair of demining discs several times per rotation of the demining tool. An upper ground layer where mines may be deployed is worked with the demining tool.

Abstract: A method for contactless inductive transmission of programming data to a programmable time fuse included in a shell for a single shot, semi-automatic, or fully automatic shell firing barrel weapon. While the shell is situated in a cartridge chamber of a barrel of the weapon, data is transmitted to the programmable time fuse from a programming device of the weapon via a transmitting coil arranged around the cartridge chamber of the barrel to a receiving coil arranged in the shell. At least a part of the barrel lying between the coils is replaced by a non-magnetic material and designed so that it does not form an electrically conductive short circuited layer that would prevent transmission between the coils.

Abstract: A shell-firing barrel weapon system for a single shot, semi-automatic or fully automatic firing, including a rifled barrel comprising a programming member for programming with programming pulses fuses in shells fired from the weapon before or in conjunction with firing of the shells. At least one contact is located in the barrel of the weapon and connected to the programming member for transmitting a programming pulse from the programming member to the fuses of the shells. The at least one contact is electrically insulated from the barrel and protrudes into the barrel beyond bars of rifling of the barrel. An electrically conductive contact ring is concentrically arranged on the shells. The contact ring is electrically insulated from main parts of the shells and has an external diameter that is smaller than a diameter of the bars of the rifling of the barrel.

Abstract: An ammunition bearing unit is provided. The unit includes at least three casings. When the ammunition bearing unit strikes a target, the casings are deformed and make successive electrical contacts. A detecting unit is arranged to detect a time difference between the successive electrical contacts created by the deformation of the casings. The detecting unit generates an initiation signal only if the time difference exceeds a selected value. An ignition system sends a signal to a charge as a function of the electrical contacts.

Abstract: The present invention relates to a method and a device for combating aircraft (4). According to the invention, use is made of a projectile which rotates in the trajectory (5) towards the target (4) and which is provided with a direction-sensing proximity fuse whose direction of impact has been coordinated with a defined splinter-scattering direction for the explosive charge (8) of the projectile. In a preferred embodiment, the projectile concerned is a projectile which is fired by means of rocket technology, backblast technology or, alternatively, by means of a gas generator, and which is included in a one-man weapon or team-operated weapon of the single-shot type.

Abstract: The present invention relates to an ammunition unit in the form of a shell or the like, with at least two warheads connected via a supporting structure. In order to prevent the impact from the first activated warhead reaching the warheads situated to the rear, and to prevent an interference effect on these warheads, according to the invention a structure-dividing charge is arranged in the supporting structure in order to divide the structure into two separate parts.

Abstract: The present invention relates to a method and a device for artillery guns with fully or semi-automatic loading systems for stowing, handling and, prior to loading the gun in question, for preparing complete propellant charges consisting of modular charges of M(A)CS type, i.e. such complete charges that consist of a number of mutually combinable modular charges which, as they may contain different types of propellant and may be of different standardized lengths can be of different strengths, and which all have a primarily rigid combustible outer casing and where each one incorporates the necessary ignition system. As claimed in the present invention each modular charge is stowed linearly after the other in magazine tubes (4) arranged compactly in parallel on top of and beside each other, each one containing a number of a modular charges of a specific type.

Abstract: An ignition system for an ammunition-bearing unit includes at least two casings, an inner and an outer casing, which are arranged to at least partially surround each other and are intended to undergo deformation upon striking a target and thus establish electrical contact, and a detecting unit for detecting when electrical contact is established and for, upon actual striking of the target, emitting at least one initiation signal for triggering the charge of the anmunition-bearing unit. At least one of the casings includes plurality of sections which are spaced around its periphery and which are electrically insulated from each other and, upon deformation of the casings establish an individual electrical contact with the opposite at least one part of the at least one other casing.

Abstract: A joint for a shell with at least a first charge unit and a second charge unit arranged in series one after the other is provided. The charge units include one shaped charge each. The charges are designed to be detonated one after the other with a time separation between the detonations. In order to suppress the interference to an undetonated charge by a shock wave generated by the detonation of a previously detonated charge, the joint that connects the charge units has been designed in a special way. The joint includes a damping section parallel to the longitudinal axis of the device, that mechanically fastens together the two charge units. In addition a rigid support device is connected to the damping section and dimensioned so that when the damping section is in an unstressed state there is a clearance in the longitudinal axis of the device between the two charge units.

Abstract: The invention relates to a foldable grip for mounting on an elongate object, such as the barrel of a portable weapon. The grip comprises an elongate grip section and a hinge which connects the grip section to the elongate object. For effecting the movement between a folded-in position and a folded-out position, the hinge consists of an oblique pin to be affixed on the elongate object and of an oblique hole formed in the grip section and cooperating with the pin. During the movement of the grip section between the folded-in position and the folded-out position, the grip section turns through essentially 90 degrees around an axis in the longitudinal direction of the grip section.

Abstract: The present invention relates to a method and device for combating identified targets (F) using warheads (2) from a launching vehicle (1) flying over a target area, by separating from this launching vehicle (1) warheads (2) which act independently after separation, and including those targets which lie close to the flight trajectory of the launching vehicle (1) and those which lie well to the side of same flight trajectory. The invention is based on the use of that part of the kinetic energy of the launching vehicle (1) which the warhead (2) takes over from the same when it is separated in order to give the warhead (2) a looping trajectory or any other programmed flight trajectory, which carries it up to a starting height adapted to its active use, which lies considerably above the actual flight trajectory of the launching vehicle (1), and which, if so required, can carry the warhead (2) back to the geographical position where it was separated from the launching vehicle (1).

Abstract: The present invention relates to a method and device for the preparation of propellant charges for automatic loading into artillery guns of the type which are loaded with propellant in the form of propellant modules usually designed charge modules, which have uniform section and combustible mainly stiff casings. The invention is based on the utilization of a special type of magazine in which sets of charge modules which correspond to the maximum charge for the artillery gun are successively fed to a module feeding device opening where the quantity of charge modules required for the next projectile is fed from the magazine to a loading pendulum which is swung into position at the module feeding device opening. Loading pendulum is fitted with devices for arranging the charge modules in a straight column above or following each other and for compressing the charge modules longitudinally into a unified propellant charge which can subsequently be rammed automatically by a conventional flick rammer.

Abstract: A cartridge case for service ammunition is designed to reduce the damage effect on the environment in the event of an extreme pressure increase in the propellent powder forming part of the charged ammunition, upon accidental ignition of the propellent powder and to a method for reduction of the damage. The cartridge case comprises at least one longitudinal weakening in the case material, the weakening being designed in such a manner that the case material, when the case is supported by the cartridge chamber of the weapon during the combustion of the powder, withstands stresses from the internal gas pressure, but breaks under the same gas pressure if the propellent powder is ignited when the case is located outside the cartridge chamber, thus splitting open along the weakening.

Abstract: The present invention relates to a method of applying a wear protection substance to the inside of metal cases used for ammunition. The wear protection substance comprises a composition of wax and a solid particle component which has a known barrel wear reducing effect. The wear protection substance is either applied in molten form to the inside of the metal case or is applied in solid form to the inside of the metal case and then melted. The wear protection substance is then spread to form a layer over the inside of the metal case. The metal case is then cooled whereby a solid coating is formed on the insides of the metal case.

Abstract: A method and an apparatus for loading artillery guns intended for non-cartridge ammunition is provided. The loading is done by a pair of flick rammers including a first flick rammer for shells and a second flick rammer for propellant charges. Each of the flick rammers is positioned at an end position where the flick rammers are loaded with the shell and propellant charge, respectively, and in which the gun can recoil between the flick rammers. After the first flick rammer is loaded, it is moved towards the second flick rammer into a position in which the shell in the first flick rammer is in line with a gun barrel. The first flick rammer is then activated to move the shell into the gun barrel. The flick rammers are then jointly displaced in an opposite direction until the first flick rammer is in its end position and the propellant charges in the second flick rammer are in line with the gun barrel.

Abstract: A method and apparatus for automatically transferring a vertically standing ammunition component from a delivery opening in a carriage mounted magazine to a flick rammer incorporated in a gun elevation system is provided. In the method, a loading pendulum is positioned immediately outside the delivery opening of the magazine and parallel to the ammunition component. The ammunition component is then ejected from the magazine onto the loading pendulum without changing the vertical orientation of the ammunition component. The ammunition component is then locked in the loading pendulum and the loading pendulum is raised about a first axle to a substantially horizontal position. An outer cradle, in which the loading pendulum is suspended, is then lowered about a second axle coinciding with the trunnion center of the gun to an angle which coincides with the elevation of the gun and to a position above the flick rammer such that the ammunition component is immediate above the flick rammer.

Abstract: A mine has a casing which encloses an explosive and a primary charge arranged in the center of the explosive near the bottom of the mine. A liner is connected over the explosive in order to delimit the explosive to generate the shape charge effect and a spacing member is arranged between the primary charge and the liner. The spacing member has an upper portion which defines an opening and a lower portion which faces the bottom of the mine. The lower portion of the spacing member is shaped substantially as a circumference of a frustrum of a cone, with a base facing towards the bottom of the mine. A triggering arrangement, having a fuze and a trigger is supported by a holder. The holder is located above the opening in the spacing member. The trigger extends from an upper side of the mine through the opening to act on the primary charge.

Abstract: A method and apparatus for obtaining temperature-independent mounting of a shaft made of a first material having a first coefficient of thermal expansion, in a bearing which interacts with the shaft and which is made of a second material having a second coefficient of thermal expansion, the first coefficient of thermal expansion having a higher value than the second coefficient of thermal expansion, includes arranging on the shaft made of the first material having the first, higher, coefficient of thermal expansion, an outer shell to surround at least the greater part of the shaft's circumferential surface and to be at least partly located outside the area in which the bearing is supported. The outer shell is made of a third material having a third coefficient of thermal expansion which has a lower value than the second coefficient of thermal expansion.

Abstract: A method and apparatus for determining whether a warhead in flight and forming a part of a rocket, missile, or the like, is in a state which permits arming of the warhead. The arming of the warhead depends upon the conditions of the warhead's movement and the elapsed time from its launching. A specific time slot which begins at a predetermined time after the launching of the warhead and terminates at a predetermined time thereafter is demarcated. The velocity of the warhead is measured following its launch and at least during the specific time slot. The warhead will be armed only in the event that the measured velocity of the warhead has reached at least a predetermined value within the specific time slot.

Abstract: A method and apparatus is for imparting, in a continuous sequence, a predetermined rotational movement to a warhead releasably housed in a protective canister and ejected out in ballistic ejection trajectories from the canister. The canister is spun to the desired rotational speed by flow of combustion gases through gas outlet nozzles discharging in the outer periphery of the canister and supplied from a central combustion chamber in which a propellant powder charge is combusted. The combustion gases are then led from the combustion chamber, in the final phase of the propellant charge combustion, through gas outlets facing towards the warhead and initially covered by the propellant charge and exposed as a result of the combustion, for ejecting the warhead out of the canister.