Abstract: The invention relates to an automatic loading process and system for a large-caliber weapon mounted on a ship and firing ammunition, constituted by charges and projectiles, at a high rate of fire.

Abstract: The invention relates to a loading device for a shell in the cannon chamber of a weapon fitted with a screw breech incorporating a receiving tray onto which the shell is positioned, enabling it to be brought from a set up position to a loading position in which the shell is aligned with the cannon axis, ramming means and means to wedge the shell in the cannon operating successively, the ramming means and the wedging means being integral with the tray, said tray being connected to the slide of the weapon in an articulated manner in order to move the shell from the set up position to the loading position, the wedging means being connected in an articulated manner with respect to the tray such that after the shell has been rammed into place said wedging means partially engage in the tray substantially in the cannon axis, said tray being engaged in the weapon breech in abutment against a sealing cone of the cannon. The tray is fitted at its front end with protection means abutting against said sealing cone.

Abstract: A joining device for a sealing base, notably for a large calibre munition having a combustible case, device in which the case carries or is fitted with a cup having a central opening, said device being characterised in that support means are fastened to the cup by first linking means, said supporting means being in the form of a rod incorporating a cylindrical support onto which a bore of the base is positioned, said base being made integral with the support means by second linking means.

Abstract: An ordnance firing mechanism for striking detonators by a strike pin which is translatable relative to a support, the strike pin being driven in translation by actuation apparatus including a lever connected to the strike pin and pivotable relative to the support, a pivotable pawl able to release the lever 4, a propelling device acting on the lever and affixed to the support 1, a driver acting on the pawl and through it implementing rotation of the lever thereby arming the strike pin and releasing the lever, the driver including a control rod for translation relative to the support and having recesses cooperating with the pawl and with a heel cooperating with the lever.

Abstract: A weapon barrel muzzle brake (5) with elements for fixing the muzzle brake to a weapon barrel (4) having a forward muzzle end face with external coupling threading (9) in the external surface of the forward end of the barrel, and an externally cylindrical rest surface (7) between the external threading and the muzzle end face, the muzzle brake (5) having internal coupling threading (13) for engaging external coupling threading on a weapon barrel, a radially extending rest wall (15) for abutting the end face (10) of a weapon barrel muzzle, and an internally cylindrically rest surface (14) for fitting snugly over an external rest surface on a weapon barrel, and locking stop elements (16-19) for preventing rotation of the muzzle brake with respect to a weapon barrel.

Abstract: The invention relates to a pressure control valve 1 for a tank intended to contain a fluid and comprising at least one flap 5 obturating an aperture linking the inside (I) and the outside (E) of the tank, such flap being held in the obturating position by spring means 7 pressing on a support 9, such valve incorporating means 10, 20 allowing the retraction in whole or in part of the spring support 9 such as to reduce the pressure exerted by the spring 7 on the flap 5. This valve is characterised in that the support 9 has an embrittled part 15 able to be fractured by a mobile piston 20 activated by a pyrotechnic gas generator 27.

Abstract: A method for stacking fibers less than 10 mm long into a cartridge case, including an impregnation stage for fibers arrayed into at least one skein together with a solidifiable material, the skein being solidifiable inside a mold and then, in the solidified state, being cut into at least two slices each of a thickness which is the desired fiber length. Such cartridges are for use as screens or decoys against radar or other detection or guidance systems.

Abstract: A guide system for the recoiling mass of a gun relative to its cradle, the recoiling mass being equipped with a carrier that slides relative to sliders attached to two lateral slides. The carrier is provided with a rail incorporating a groove in which a slider is disposed. Each groove has a shape preventing the slider received therein from being extracted from it. Each slider is attached to a support. The combination of carriers and sliders is adjustable relative to the slides, by the supports, to compensate for wear.

Abstract: The object of the invention is an explosive ammunition (1) having a fragmenting structure comprising an explosive charge (3) configured in a splinter-generating shell (2).

Abstract: The invention relates to track-laying assistance device to hold at ground-level a raised end of an opened track having pre-angled connectors, wherein it comprises a first element fastened to the part of the track held to the ground and a second mobile element able to be dismounted with respect to said first element and able to push back to ground-level a raised end of the track to allow the vehicle to engage in it.

Abstract: The invention relates to a process to manufacture an object using at least one granular material (16) having a large particle size, for example greater than or equal to 0.1 mm, such process being characterised by the following stages: the granular material or materials are placed in a mould (2) at the same dimensions as the object to be made and incorporating at least one evacuation opening (6), said opening being of a size that is less than the particle size of the material, a liquid-phase binder (21) is poured into the mould, the binder is mixed between the grains of material and the excess binder is drained off through the evacuation opening using suction means (11). Application in the manufacture of igniting tubes or propellant charges for artillery ammunition.

Abstract: A vehicle bumper with shock-absorbers, including a rigid support attached to a vehicle onto which a bumper shell is fitted, the shock-absorbers including at least two pyrotechnic actuators linking the rigid support to the vehicle, the actuators being connected for activation by a control system including an impact or deceleration sensor, and each pyrotechnic actuator including at least two gas-generating powder tablets to be primed individually by the control system.

Abstract: Tie invention relates to a process to manufacture an object using at least one granular material (16) having a large particle size, for example greater than or equal to 0.

Abstract: An active protection device for a surface, the device having at least one casing enclosing at least one shaped charge having a direction of action substantially parallel to or else inclined with respect to the surface as well as detection device ensuring the triggering of the shaped charge in response to the onset of a projectile. The casing encloses four dihedral shaped charges forming a quadrilateral, or four groupings of shaped charges, and having converging directions of action, the directions of action of the shaped charges can be inclined with respect to the surface and oriented towards the outside of the surface.

Abstract: A translational braking device for a projectile on its trajectory. The device has at least two air brakes made in the form of flaps that are moved in a plane perpendicular to the axis of the projectile to increase the aerodynamic drag of the projectile. Each flap has at least two closed grooves, extending essentially parallel to a direction that is perpendicular to the axis of the projectile, each groove cooperating with a rod that is fixed with respect to the projectile.

Abstract: A projectile (3) to be launched by a marksman toward a target using a launch device, the projectile comprising a shaped-charge warhead (14) whose axis (38) coincides with that of the projectile, initiation of which is caused by an igniter (17). The projectile is characterized by a shaped charge which generates a core, and igniter (17) initiates the shaped charge along the trajectory and at a given distance from the launch device so that the marksman is protected from projectile explosions.

Abstract: The subject of the invention is a translational braking device for a projectile during its trajectory comprising at least two airbrakes that are radially deployable so as to increase the projectile's aerodynamic drag. Each airbrake is a flap pivoting around a pivot integral with the projectile and parallel to its axis. The device incorporates at least one pyrotechnic piston locking at least one of the flaps in its folded position and at least two flaps are stacked one on top of the other when they are in their folded position, at least a first of the two flaps incorporates a mechanism to retain the second of the two flaps in its folded position.

Abstract: The invention relates to an igniter tube, notably for artillery ammunition, and comprising a stack of at least two ring-shaped tablets made of an igniting composition and joined together by a heat-shrinkable sheath.

Abstract: The charge of the invention comprises a plate placed between the explosive charge and the liner. The diameter of the plate is equal to the internal diameter of the casing of the charge. The material used for the plate must be such that its density is lower than or equal to that of the material used for the liner and must have a volumetric compressibility modulus greater than or equal to 100 GPa, with the thickness of the plate greater than or equal to that of the liner at any point of a central area surrounding the axis of the charge, so as to ensure that upon initiation of the charge the centripetal deformation of the plate will be less than that of the liner.

Abstract: The subject of the invention is an ignition component for a pyrotechnic composition or propellant charge. This component comprises at least two electrodes separated by a cylindrical insulating envelope marking out an inner volume, electrodes connected by a conductive ignition fuse arranged in the inner volume, the component thus forming a plasma torch whose size is such that it generates a plasma when it receives an ignition voltage less than or equal to 600 volts and is supplied with electric energy less than or equal to 5000 joules.