Gas pressure release device

Claim 1

A GAS RELEASE DEVICE IN CONJUNCTION WITH A PRESSURE SOURCE PROVIDED WITH A FRANGIBLE CAP COMPRISING A CUTAWAY PIERCING POINT ADAPTED TO PIERCE SAID CAP, AN EXTENDING SPRING CO-ACTING WITH SAID POINT AND HOUSED WITHIN A CONTAINER HAVING INLET AND EXHAUST PORTS AND PROVIDED WITH A CUP SHAPED INSERT BELOW SAID PORTS, THE INSIDE OF SAID INSERT FORMING A CHAMBER FOR AN ACTUATION DEVICE, AND THE OUTSIDE OF THE BASE OF SAID INSERT FORMING A PLATFORM PROVIDED WITH A CENTRALLY DISPOSED HOLLOW BOSS AND A MOUNTING FRAME, SAID HOLLOW BOSS FORMING A LOCATION FOR SAID EXTENDING SPRING AND A GUIDE FOR A MEMBER CARRYING SAID PIERCING POINT, A ROD PASSING THROUGH THE BASE OF SAID INSERT INTO SAID HOLLOW BOSS PIVOTALLY CONNECTING SAID ACTUATION DEVICE TO ONE ARM OF A BELL CRANK HAVING ITS PIVOT AT A POINT ON SAID FRAME IN LINE WITH THE BASE OF SAID BOSS, THE OTHER ARM OF SAID BELL CRANK EXTENDING LONGITUDINALLY WITHIN SAID CONTAINER TO A POINT ALMOST IN LINE WITH THE END OF SAID BOSS, A LATCH MEMBER DEFINING AN APERTURE WHICH SURROUNDS SAID PIERCING POINT HAVING ITS PIVOT AT A POINT ON SAID FRAME IN LINE WITH THE END OF SAID OTHER ARM OF SAID BELL CRANK AND EXTENDING TRANSVERSELY SO THAT WHEN THE EXTENDING SPRING IS COMPRESSED IT CAN BE LATCHED BENEATH A CAM INTEGRAL WITH THE PIVOTED END OF A LEVER MEMBER EXTENDING TRANSVERSELY TO MEET THE END OF SAID OTHER ARM FOR SUPPORT THEREBY, THE PIVOTS OF SAID BELL CRANK, SAID LATCH MEMBER AND SAID LEVER MEMBER FORMING AN ANGLE APPORACHING THAT OF A RIGHT ANGLE.