Automatic cannon having an ammunition-receiving device

An automatic cannon for use with a linearly advanced and retracted feed finger that transports caseless ammunition to the cannon, said cannon comprising:

• a weapon housing having a feed opening with a periphery;
• a wedge-type breech block disposed adjacent the weapon housing, the wedge-type breech block having a feed opening;
• a gun barrel disposed adjacent the wedge-type breech block, the gun barrel having a cartridge chamber for receiving ammunition transported through the feed opening of the weapon housing and the feed opening of the wedge-type breech block by the feed finger;
• receiving means for damping the forward movement of the ammunition into the cartridge chamber, the receiving means including a plurality of leaf springs which are distributed around the periphery of the feed opening of the weapon housing, the leaf springs having free ends which resiliently project inwardly so as to constrict the feed opening of the weapon housing, the receiving means further including at least one additional leaf spring disposed in the feed opening of the wedge-type breech block and having a free end which projects inwardly, the spring characteristics of the leaf springs being different from the spring characteristics of the at least one additional leaf spring and the inward extension of the free ends of the leaf springs being shaped differently from the inward extension of the free end of each at least one additional leaf spring.

An automatic cannon for use with a linearly advanced and retracted feed finger that transports caseless ammunition to the cannon, said cannon comprising:

• a weapon housing having a feed opening with a periphery;
• a wedge-type breech block disposed adjacent the weapon housing, the wedge-type breech block having a feed opening;
• a gun barrel disposed adjacent the wedge-type breech block, the gun barrel having a cartridge chamber for receiving ammunition transported through the feed opening of the weapon housing and the feed opening of the wedge-type breech block by the feed finger;
• and
• receiving means for damping the forward movement of the ammunition into the cartridge chamber, the receiving means including a plurality of leaf springs which are distributed around the periphery of the feed opening of the weapon housing, the leaf springs having free ends which resiliently project inwardly so as to constrict the feed opening of the weapon housing, the receiving means further including at least one additional leaf spring disposed in the feed opening of the wedge-type breech block and having a feed end which projects inwardly, the inward extension of the leaf springs being shaped differently from the inward extension of the at least one additional leaf spring.