Means for indexing multiprojectile cartridges into firing alignment in a multibore gun

Claim 1

IN AN AUTOMATIC FIREARM, A BARREL HAVING A FIRING CHAMBER FOR RECEIVING A CARTRIDGE CONTAINING A PLURALITY OF PROJECTILES RADIALLY SPACED ABOUT A CENTRAL AXIS, SAID BARREL HAVING A PLURALITY OF BORES EXTENDING FORWARDLY FROM SAID FIRING CHAMBER IN CORRESPONDENCE TO THE NUMBER AND ARRANGEMENT OF THE PROJECTILES, A LONGITUDINALLY RECIPROCATING BOLT HAVING A CIRCULAR SEAT FOR THE BASE OF THE CARTRIDGE AND ADAPTED TO BE ROTATED INTO AND OUT OF LOCKED BATTERY POSITION, AND INDEXING PLUNGER SLIDABLY DISPOSED IN THE FRONT END OF SAID BOLT, AND SPRING MEANS NORMALLY BIASING SAID PLUNGER TO PROJECT FROM SAID BOLT, THE CARTRIDGE HAVING A PLURALITY OF RECESSES SPACED ABOUT THE REAR END THEREOF IN RESPECTIVE RADIAL ALIGNMENT WITH THE PROJECTILES THEREIN AND IN POSITION TO RECEIVE THE FRONT END OF SAID INDEXING PLUNGER DURING ROTATION OF SAID BOLT INTO LOCKED BATTERY POSITION WHEREBY THE CARTRIDGES IS ROTATED THEREBY TO POSITION THE PROJECTILES THEREIN INTO FIRING ALIGNMENT WITH SAID BARREL BORES AT THE CONCLUSION OF THE LOCKING ROTATION OF SAID BOLT.