Sprinkler apparatus

Claim 1

A SPRINKLER COMPRISING A HOUSING ADAPTED TO BE MOUNTED ADJACENT A CEILING STRUCTURE, SAID HOUSING HAVING A WATER CONDUIT THEREIN AT ONE END ADAPTED FOR CONNECTION TO A WATER SUPPLY, SAID HOUSING HAVING A CYLINDRICAL WATER CHAMBER THEREIN AT AN OPPOSITE END, CYLINDRICAL FLANGE MEANS WITHIN SAID WATER CHAMBER FOR DIVIDING SAID WATER CHAMBER INTO AN ANNULAR CHAMBER AND A CONCENTRICALLY DISPOSED INNER CYLINDRICAL CHAMBER, SAID FLANGE BEING PROVIDED WITH HOLES ARRANGED TANGENTIALLY RELATIVE TO THE INNER CYLINDRICAL CHAMBER AND CONNECTING THE INNER CYLINDRICAL CHAMBER WITH THE ANNULAR CHAMBER, SAID HOUSING BEING FURTHER PROVIDED WITH PASSAGES INCLINED RELATIVE TO THE AXIS OF SAID HOUSING AND COMMUNICATING BETWEEN SAID WATER CONDUIT AND SAID ANNULAR CHAMBER, SAID HOUSING HAVING A FIRST APERTURE COMMUNICATING BETWEEN SAID WATER CONDUIT AND SAID INNER CYLINDIRCAL CHAMBER, AND SAID HOUSING ALSO HAVING A CENTRAL APERTURE COMMUNICATING BETWEEN SAID INNER CYLINDRICAL CHAMBER, AND SAID WATER CONDUIT A STEM EXTENDING THROUGH SAID FIRST APERTURE AND SAID CENTRAL APERTURE AHD HAVING A VALVE MEMBER LOCATED IN SAID WATER CONDUIT AND HAVING A PLATE EXTERIOR OF SAID HOUSING, SAID STEM HAVING ONE POSITION WHEREIN SAID VALVE MEMBER CLOSES SAID WATER CONDUIT AND WHEREIN SAID PLATE CLOSES SAID CENTRAL APERTURE, SAID STEM HAVING ANOTHER POSITION WHEREIN SAID VALVE MEMBER PERMITS COMMUNICATION BETWEEN SAID WATER CONDUIT AND SAID PASSAGES BUT CLOSES SAID FIRST APERTURE AND WHEREIN SAID PLATE PERMITS COMMUNICATION BETWEEN SAID INNER CYLINDRICAL CHAMBER AND THE EXTERIOR OF SAID HOUSING, AND A FUSIBLE MEMBER SANDWICHED BETWEEN SAID PLATE AND SAID HOUSING AND BEING ADAPTED TO HOLD SAID PLATE TIGHTLY THEREAGAINST AND TO MAINTAIN SAID STEM IN SAID ONE POSITION, SAID FUSIBLE MEMBER BEING ADAPTED TO MELT AT A PREDETERMINED TEMPERATURE THEREBY SIMULTANEOUSLY RELEASING SAID PLATE FROM SAID HOUSING AND PREMITTING SAID STEM TO MOVE TO ITS OTHER POSITION WHEREBY WATER IS PERMITTED TO FLOW THROUGH SAID WATER CONDUIT, THROUGH SAID PASSAGES, THROUGH SAID ANNULAR CHAMBER, THROUGH SAID HOLES, THROUGH SAID INNER CYLINDRICAL CHAMBER AND THROUGH SAID CENTAL APERTURE, THE TANGENTIAL ARRANGEMENT OF SAID HOLES PROVIDING A ROTATIONAL MOVEMENT TO THE WATER FLOWING INTO SAID INNER CYLINDRICAL CHAMBER AND OUTWARDLY FROM SAID CENTRAL APERTURE.