Abstract: A medium calibre gyro-stabilized anti-air shell intended to produce a spray of sub-projectiles, wherein it includes an ogive shaped nose cone extended by a case tube and a central pin delimiting with the case tube a housing enclosing sub-projectiles, a casing covering the case tube attached, by an upstream thread at its front end, to a flange on the nose cone and attached by a downstream thread at its rear end onto a rear end cap enclosing an air burst charge, translation means being positioned between the rear end cap and the case tube so as to ensure the shearing of the upstream and downstream threads.

Abstract: A telescoped ammunition formed of a shell integrated into a case closed by a rear end cap, the shell includes a nose cone, a body made of a heavy material followed by a cage, wherein the body of the shell is formed of an internal part and an external part, the internal part being tubular in shape and having embrittlement grooves the external part being arranged to press on the internal part and formed of a stack of discs, each disc having embrittlement grooves.

Abstract: A valve sleeve for a CT40-type cannon that functions in association with a detonation assembly to activate a firing pin. The valve sleeve incorporates a receiver to ensure the mechanical support of the cannon's firing pin during firing events, the firing pin being coupled to the valve sleeve and translatable in relation to it, the receiver being constituted by a cylindrical firing pin sleeve, a firing pin valve, and a firing pin assembly inserted in the substantially cylindrical sleeve and the firing pin being inserted both in the valve and in the firing pin assembly, this receiver being revolving.

Abstract: A medium calibre fin-stabilised anti-air shell intended to produce a spray of sub-projectiles, wherein it includes an ogive shaped nose cone extended by a case tube and a central pin delimiting with the case tube a housing enclosing sub-projectiles, a casing covering the case tube attached, by an upstream thread at its front end, to a flange on the nose cone and attached by a downstream thread at its rear end onto a rear end cap enclosing an air burst charge, translation means being positioned between the rear end cap and the case tube so as to ensure the shearing of the upstream and downstream threads.

Abstract: A telescoped type ammunition including a case inside which is housed a sub-calibre projectile equipped with a segmented discarding sabot, a propellant charge and an igniting device for the propellant charge, wherein the sub-calibre projectile incorporates a prolonged part receiving a tail fin able to move between a folded position against the prolonged part and a deployed position, the sabot retaining the tail fin in the folded position, the sabot encloses the tail fin to isolate it so as to prevent any contact between the tail fin and the propellant charge.

Abstract: A telescoped ammunition formed of a shell integrated into a case closed by a rear end cap, the shell includes a nose cone, a body made of a heavy material followed by a cage, wherein the body of the shell is formed of an internal part and an external part, the internal part being tubular in shape and having embrittlement grooves the external part being arranged to press on the internal part and formed of a stack of discs, each disc having embrittlement grooves.

Abstract: A valve sleeve for a CT40-type cannon that functions in association with a detonation assembly to activate a firing pin. The valve sleeve incorporates receiving means to ensure the mechanical support of the cannon's firing pin during firing events, the firing pin being coupled to the valve sleeve and translatable in relation to it, the receiving means being constituted by a cylindrical firing pin sleeve, a firing pin valve and a firing pin assembly inserted in the substantially cylindrical sleeve and the firing pin being inserted both in the valve and in the firing pin assembly, these means being revolving.

Abstract: A percussion device for a medium or large caliber weapon incorporating a firing pin, spring means and a drive cam for the firing pin enabling its displacement in translation up to an “armed” position and the compression of the spring means, such device wherein it incorporates means to immobilize the firing in the “armed” position, these means being supported by the weapon breech and able to take up a position in which they immobilize the firing pin and another in which they release the firing pin.

Abstract: A percussion device for a medium or large caliber weapon incorporating a firing pin, spring means and a drive cam for the firing pin enabling its displacement in translation up to an “armed” position and the compression of the spring means, such device wherein it incorporates means to immobilize the firing in the “armed” position, these means being supported by the weapon breech and able to take up a position in which they immobilize the firing pin and another in which they release the firing pin.

Abstract: A contact safety device between two mechanical parts mobile which respect to one another to guarantee the internal kinematics, by the release or activation of control means, wherein said device incorporates a safety unit connected to one of said two mechanical parts enclosing a probe activated by one of said two mechanical part and amplifying means constituted by an amplifying lever activated by said probe and an immobilizing lock activated by said amplifying lever meshed on said control means so as to transform a rectilinear micro-movement into a circular movement of large magnitude.

Abstract: A contact safety device between two mechanical parts mobile which respect to one another to guarantee the internal kinematics, by the release or activation of control means, wherein said device incorporates a safety unit connected to one of said two mechanical parts enclosing a probe activated by one of said two mechanical part and amplifying means constituted by an amplifying lever activated by said probe and an immobilizing lock activated by said amplifying lever meshed on said control means so as to transform a rectilinear micro-movement into a circular movement of large magnitude.

Abstract: A feed mechanism for use transferring linkless ammunition especially cased telescoped ammunition, from location to another, and simultaneously changing the orientation of its axis, comprising an Archimedes feed screw (11) and a cam track (14, 18, 17) located around the feed screw. Successive rounds (8) of ammunition are fed to the screw (11) so as to be received in the troughs of the screw thread. The cam track holds the rounds engaged within the troughs (15), while rotation of the screw advances the round along the cam track. The cam track is shaped so as to rotate the axis of successive rounds as they are advanced along its length to a discharge end.

Abstract: A small or medium-caliber multi-barrel automatic weapon of the GATLING type, notably designed to fire telescoped munitions, having a loading and firing system (SC) having several pivoting chambers (20). Each chamber is mounted pivoting around a stay (30), is associated with a barrel of the weapon and moves from a loading area (ZC) to a firing area (ZT), said chamber (20) being guided during its movement by guiding means formed of a fixed inner cam (32) and a fixed outer cam (34) which are separated from one another by an even distance corresponding to the outer diameter of the chambers (20).

Abstract: A transmission device includes a central wheel, a satellite wheel, a drive element and a tension control device. The central wheel is disposed to rotate about a central wheel axle that is fixed in a first position. The satellite wheel has a satellite wheel axle, which is movable with the satellite wheel relative to the fixed position such that the satellite wheel does not rotate about the satellite wheel axle. The drive element, which has a first portion and a second portion, connects the central wheel and the satellite wheel. When the satellite wheel revolves in a first direction around the central wheel, the central wheel is induced to rotate in a second direction opposite the first direction. The tension control device is connected to the drive element and controls its tension to at least partially compensate for the induced rotation of the central wheel.

Abstract: A firing abort and hang fire safety system for a small or medium caliber multi-barrel automatic weapon includes a device to immobilize the revolving assembly (100) of the weapon in rotation. This device includes a shock-absorbing device mounted coaxially to the revolving unit of the weapon, a control device integral in rotation with the revolving unit and able to translate, further to the misfire of a round of ammunition or to the activation of an external control, to compress the shock-absorbing means device and absorb the rotational kinetic energy of the revolving unit of the weapon. The backspring of the shock-absorbing means device thereafter causing the revolving unit of the weapon to rotate in the opposite direction before stopping.

Abstract: An ammunition feed system for a small or medium caliber fire arm, of the type comprising a double ammunition rack (G1, G2) for different munitions (M1, M2), a loading device belonging to the weapon to load the munition one by one and an intermediate (9) device to transfer the munitions (M1, M2) from the rack (G1 or G2) towards the loading device. Each rack (G1, G2) comprises a conveyor (25) having two endless chains (27) which is selectively coupled to a starwheel (37) which forms the intermediate transfer device (9). This wheel may revolve in two opposite direction in order to extract the munitions (M1, M2) from one rack (G1, G2) or to bring the munitions (M1, M2) back to the original rack.

Abstract: A GATLING type multi-barrel weapon includes a revolving assembly with sliding loading and firing chambers that are in axial alignment with the barrels of the weapon. Each chamber is able to move between an open and a closed position following a translational to-and-fro movement in parallel to the rotational axis of the revolving assembly, the two positions being at a distance from one another such as to define a loading space that extends axially for a distance corresponding to the length of a munition. When the chamber is in its open position, supports retain a munition received in the loading space, the supports being formed of two supports respectively provided on the front end face of each chamber and on a ring mounted sliding on the rear part of the barrel. The weapon notably allows plastic-cased telescoped munitions having a polygonal cross section to be fired.

Abstract: An ammunition feed system for a firearm that can pivot in elevation about a horizontal elevation axis includes an ammunition storage device, a loading device and an intermediate transfer section. The ammunition storage device is fixed relative to the elevation axis. The ammunition storage device includes at least two magazines with a common first entry/exit opening through which the rounds of the ammunition pass. Each of the two magazines has a round transport assembly. The rounds are unconnected and selectively movable in a loading direction from the two magazines through the first entry/exit opening and in an unloading direction opposite the moving direction. The loading device individually loads the rounds into a firing chamber of the firearm and moves with the firearm in elevation. The intermediate transfer section links and transfers the rounds between the ammunition storage device and the loading device.