Automatic firearm feed mechanisms

Claim 1

IN AN AUTOMATIC FIREARM, A FEED MECHANISM WHICH COMPRISES, IN COMBINATION, AN AMMUNITION BELT CONSISTING OF A PLURALITY OF LINKS AND LONGITUDINALLY EXTENDING CARTRIDGES EACH FOR PIVOTALLY CONNECTING TWO SUCESSIVE LINKS, EACH OF SAID LINKS COMPRISING TWO OPEN CLIPS FOR TWO SUCCESSIVE CARTRIDGES, RESPECTIVELY, SAID CLIPS BEING OFFSET LONGITUDINALLY WITH RESPECT TO EACH OTHER, A CASING, AN INTERMITTENTLY ROTATING ROTOR JOURNALLED IN SAID CASING ABOUT A LONGITUDINAL AXIS AND HAVING ARMS CAPABLE OF ENGAGING BETWEEN THE CARTRIDGES OF SAID BELT TO PROPEL IT LATERALLY, GUIDE MEANS FOR THE CARTRIDGES OF SAID BELT, EXTENDING ALONG CYLINDRICAL SURFACES COAXIAL WITH SAID ROTOR, FOR PREVENTING OUTWARD RADIAL MOVEMENT OF SAID CARTRIDGES, A MEMBER RESILIENTLY MOVABLE IN SAID CASING AWAY FROM AND TOWARD SAID ROTOR ADAPTED TO COOPERATE WITH THE FIRST CARTRIDGE OF SAID BELT TO BE PUSHED BY IT AWAY FROM SAID ROTOR, FIRST ABUTMENT MEANS CARRIED BY SAID MEMBER, SAID ABUTMENT MEANS BEING ADAPTED TO COOPERATE WITH THE TIP OF ONE CLIP OF EACH LENGTH TO STRIP SAID LENGTH AWAY FROM THE CARTRIDGE ON WHICH IT IS FITTED WHEN SAID BELT IS DISPOSED WITH SAID TIP AT THE FRONT OF THE CORRESPONDING CLIP, SAID ABUTMENT MEANS BEING ADAPTED TO COOPERATE WITH THE OTHER END OF SAID LAST-MENTIONED CLIP WHEN SAID BELT IS DISPOSED WITH SAID TIP AT THE REAR OF THE CORRESPONDING CLIP, SECOND ABUTMENT MEANS CARRIED BY SAID CASING FOR PREVENTING ANY SUBSTANTIAL ROTATION OF SAID LAST-MENTIONED CLIP ABOUT THE CARTRIDGE ON WHICH IT IS MOUNTED DURING ROTATION OF SAID ROTOR WHEN SAID BELT IS DISPOSED WITH SAID TIP AT THE REAR OF THE CORRESPONDING CLIP, WHEREIN SAID SECOND ABUTMENT MEANS CONSISTS OF AN INCLINED SURFACE IN THE TOP WALL OF SAID EVACUATION CHUTE, SAID INCLINED SURFACE BEING ADAPTED TO FORM, DURING THE EVACUATION OF EVERY LINK, AN ABUTMENT FOR THE FRONT CLIP THEREOF.