Apparatus for production of carbon black

Claim 1

APPARATUS FOR THE PRODUCTION OF CARBON BLACK WHICH COMPRISES, IN COMBINATION: A CARBON BLACK PRODUCING FURNACE, A PRODUCT CONDUIT CONNECTED TO AN OUTLET FROM SAID FURNACE FOR CONVEYING GASES HAVING CARBON BLACK SUSPENDED THEREIN FROM SAID FURNACE, A PRODUCT GATHERING CONDUIT, A VENT CONDUIT, A VAVE BODY IN COMMUNICATION AT ONE END THEREOF WITH SAID PRODUCT GATHERING CONDUIT AND IN COMMUNICATION AT THE OTHER END THEREOF WITH SAID VENT CONDUIT, A SIDE OPENING PROVIDED IN A SIDE WALL OF SAID VALVE BODY BETWEEN SAID VALVE BODY ENDS AND IN COMMUNICATION WITH SAID PRODUCT CONDUIT, A FIRST VALVE SEAT SECURED TO AND EXTENDING INWARDLY FROM THE INNER WALL OF SAID VALVE BODY ADJACENT SAID ONE END OF SAID BODY, AND SPACED APART FROM AND BELOW SAID SIDE OPENING, A SECOND VALVE SEAT SECURED TO AND EXTENDING INWARDLY FROM SAID INNER WALL OF SAID VALVE BODY ADJACENT SAID OTHER END OF SAID VALVE BODY, AND SPACED APART FROM AND ABOVE SAID SIDE OPENING, A VALVE HEAD DISPOSED WITHIN SAID VALVE BODY INTERMEDIATE SAID VALVE SEATS, SAID VALVE HEAD BEING ADAPTED TO SEAT IN EITHER OF SAID VALVE SEATS, SAID FIRST VALVE SEAT AND SAID SECOND VALVE SEAT EACH BEING SPACED APART FROM SAID OPENING A DISTANCE SUFFICIENT TO PERMIT SAID VALVE HEAD TO SEAT IN EITHER OF SAID VALVE SEATS AND STILL PROVIDE AN UNOBSTRUCTED PASSAGE FROM SAID OPENING THROUGH SAID CHAMBER, AND MEANS FOR BIASING SAID VALVE HEAD INTO SEATING ENGAGEMENT WITH ONE OF EITHER OF SAID FIRST VALVE SEAT AND SAID SECOND VALVE SEAT SO AS TO PERMIT SAID FLOW FROM SAID PRODUCT CONDUIT INTO ONE OF EITHER OF SAID PRODUCT GATHERING CONDUIT AND SAID VENT CONDUIT.