Safety device for guns

Claim 1

IN COMBINATION, A GUN HAVING A BARREL WITH RIFLING, A FIRMING PIN, A TRIGGER, AND A ROTATABLE CYLINDER PROVIDED WITH CHAMBERS TO CARRY ROUNDS OF AMMUNITION INTO ALIGNMENT WITH THE BORE OF SAID BARREL, AND A SAFETY DEVICE INCLUDING A DUMMY CARTIDGE DISPOSED IN ONE OF THE CHAMBERS OF SAID CYLINDER, SAID DUMMY CARTIDGE COMPRISING A CASING, A FORWARDLY DISPOSED PROJECTILE DISPOSED FOR AXIAL MOVEMENT IN SAID CASING AND HAVING A PORTION EXTENDING THROUGH THE REARWARD END THEREOF, MEANS FOR RESISTING MOVEMENT OF THE PROJECTILE INWARDLY OF THE CASING, MEANS ON SAID PROJECTILE PORTION COACTING WITH MEANS ON SAID CASING TO RELEASABLY HOLD THE PROJECTILE IN SAID CASING, AND A SLIT IN SAID CASING EXTENDING GENERALLY LENGTHWISE THEREOF AND BEING OPERATIVE TO RENDER THE HOLDING MEANS COACTING BETWEEN SAID PROJECTILE PORTION AND SAID CASING INOPERATIVE UPON IMPACTING OF SAID PROJECTILE PORTION BY THE FIRING PIN OF THE GUN WHEREBY SAID PROJECTILE WILL MOVE OUTWARDLY WITH RESPECT TO THE CASING AND INTO ENGAGEMENT WITH THE RIFLING OF SAID BARREL, SAID CYLINDER BEING ORIENTED SO THAT SAID CARTRIDGE IS NEXT TO MOVE INTO ALIGNMENT WITH THE BARREL''S BORE UPON PULLING OF THE GUN TRIGGER.