Abstract: A device to recuperate the energy produced during the recoiling of a weapon provided with a hydraulic fluid power circuit, wherein said device comprises an energy recuperating cylinder activated by the recoil of said weapon, a double-acting cylinder comprising two chambers separated by a piston, a first chamber of said cylinder being connected to said hydraulic power circuit of said weapon, said piston of said cylinder pushing said hydraulic fluid in said circuit into a storage accumulator when said weapon recoils. The energy recuperating cylinder comprises a second chamber connected to a recoil mechanism that ensures pressurising of said mechanism.

Abstract: A device to recuperate the energy produced during the recoiling of a weapon provided with a hydraulic fluid power circuit, wherein said device comprises an energy recuperating cylinder activated by the recoil of said weapon, a double-acting cylinder comprising two chambers separated by a piston, a first chamber of said cylinder being connected to said hydraulic power circuit of said weapon, said piston of said cylinder pushing said hydraulic fluid in said circuit into a storage accumulator when said weapon recoils. The energy recuperating cylinder comprises a second chamber connected to a recoil mechanism that ensures pressurising of said mechanism.

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 technical scope of the invention is that of devices to regulate the counter-recoil rate of an artillery cannon according to the temperature. The regulation device according to the invention comprises a buffer co-operating with a ring, so as to ensure the gradual braking of the cannon at the end of the counter-recoil operation by rolling the brake oil through a leakage section located between the buffer and the ring. It is characterized in that it incorporates at least one modulation device comprising a heat-sensitive element made in a shape-memory alloy, such element ensuring, by its distortion, an increase in the leakage section when the temperature drops below a given threshold. Application to recoil mechanisms of artillery cannons.

Abstract: The invention is directed to an automatic firearm apparatus of the type including a feed system and a rotatable drum driven in rotation by an outer motor, wherein the drum includes a closed contour breech drive ramp. The apparatus includes two follower members cooperating with the ramp, each rigidly mounted on a breech to impart to the breech a reciprocating movement between a feed position, in which it is separate from its respective cartridge chamber, and a firing position, in which it closes the cartridge chamber. The feed system includes a feed mechanism rotating continuously and two distribution mechanisms rotating intermittently. Each of the distribution mechanisms are arranged to receive ammunition from the feed mechanism when stopped and, when rotating thereafter, to supply this ammunition to its respective breech while the latter is in its feed position.