Ammunition feeder and booster

Claim 1

FOR A GUN HAVING A RECEIVER, A ROTATABLE DRUM PROVIDED WITH CHAMBERS INDEXABLE TO A FIRING STATION AND MEANS FOR ROTATING THE DRUM POWERED BY THE EXPLOSION OF CARTRIDGES IN THE GUN, A FEEDER COMPRISING A CONTAINER MOUNTED AT ONE END TO THE RECEIVER AND PROVIDED WITH A PORT IN AN END OPPOSITE SAID ONE END FOR LOADING A SUPPLY OF CARTRIDGES INTO SAID CONTAINER, A PLURALITY OF ENDLESS CHAINS MOVABLY MOUNTED IN SAID CONTAINER AND COOPERABLY DISPOSED FOR STORING A SUPPLY OF SAID CARTRIDGES THEREIN AND FOR MOVING SAID CARTRIDGES FROM SAID PORT TO THE RECEIVER, MEANS FOR CONNECTING SAID CHAINS TO THE DRUM FOR ACTUATION THEREBY, A BOOSTER DEVICE TO ASSIST THE DRUM IN ACTUATING SAID CHAINS PROPORTIONATE TO THE NUMBER OF CARTRIDGES LOADED IN SAID CONTAINER, SAID BOOSTER DEVICE BEING COMPRISED OF A CYLINDER WITH A COOPERATING PISTON SLIDINGLY MOUNTED THEREIN FOR RECIPROCATION BETWEEN A CHARGED AND A RETRACTED POSITION AND A PAIR OF ACCUMULATORS COMMUNICATING RESPECTIVELY WITH THE OPPOSITE ENDS OF SAID CYLINDER FOR PRODUCING A DIFFERENTIAL PRESSURE IN SAID PAIR OF ACCUMULATORS WHEN SAID PISTON IS MOVED TO THE CHARGED POSITION TO ENERGIZE SAID PISTON FOR MOVEMENT TO THE RETRACTED POSITION PROPORTIONATE TO THE POSITION THEREOF IN SAID CYLINDER, A ROD EXTENDING FROM SAID PISTON OUT OF SAID CYLINDER, A RACK PROVIDED ON SAID ROD, A MOTOR MOUNTED TO SAID CONTAINER, A WORM MOUNTED TO SAID MOTOR FOR ACTUATION THEREBY, A SHAFT ROTATABLY MOUNTED TO SAID CONTAINER, A SLEEVE SLIDINGLY DISPOSED ON SAID SHAFT FOR ACTUATION TO ONE OF THREE PREDETERMINED POSITIONS, A WORM-GEAR ROTATABLY MOUNTED TO SAID SLEEVE FOR MESHING ENGAGEMENT WITH SAID WORM, A PINION ROTABLY MOUNTED TO SAID SLEEVE FOR MESHING ENGAGEMENT WITH SAID RACK, A GEAR ROTATABLY MOUNTED TO SAID SLEEVE AND CONNECTED TO SAID CHAINS FOR OPERATION THEREWITH, A FIRST KEY PORTION DISPOSED ON SAID SLEEVE FOR SLIDING ENGAGEMENT WITH SAID GEAR WHEN SAID SLEEVE IS IN THE FIRST OF SAID THREE POSITIONS, A SECOND KEY PORTION DISPOSED ON SAID SLEEVE TO SLIDINGLY ENGAGE SAID PINION WHEN SAID SLEEVE IS IN THE FIRST POSITION FOR TRANSFERRING THE FORCE APPLIED AGAINST SAID PISTON BY SAID PAIR OF ACCUMULATORS TO SAID CHAINS, TO JOINTLY ENGAGE SAID PINION WITH SAID WORM-GEAR WHEN SAID SLEEVE IS IN THE SECOND OF SAID THREE POSITIONS FOR CONNECTING SAID MOTOR TO SAID PISTON FOR ACTUATION THEREOF AND TO JOINTLY ENGAGE SAID WORM-GEAR WITH SAID GEAR WHEN SAID SLEEVE IS ACTUATED TO THE THIRD OF SAID THREE POSITIONS TO CONNECT SAID MOTOR TO SAID CHAINS FOR ACTUATION THEREOF.