BOGOMAZOV SUBMARINE GUN Russian patent published in 1997 - IPC

FIELD: automatic feed of cartridges from magazine located in pistol grip. SUBSTANCE: at a shot under the pressure of discharged powder gases the gas pusher moves backward over the barrel moving the cartridge pusher until the cartridge rests against the front lateral lug of the double-loading safety lock. When the cartridge pusher stops, its pin sliding along the longitudinal grooves compresses the spring. When the disconnector of the gas pusher approaches the stop surface of the double-loading safety lock that is spring-loaded from the bottom, it forces out the stop surface downwards, and the spring catches get compressed releasing only the upper cartridge. The double-loading safety lock goes down and the cartridge pusher moves the upper cartridge from the magazine to the feeder, which raises the cartridge and rests against the bends of the false magazine. Under the action of the return spring the gas pusher moves in the reverse direction resetting the automatic cartridge feed mechanism. EFFECT: improved design. 2 cl, 14 dwg