Flame Thrower

I was about to start working on some silver jewellery and found my gas torch had developed a serious fault, it nearly caused an accident, instead of a controlled flame, it was like some kind of crazy flame thrower and shot almost 1m long flames! it was some sort of failure of the pressure regulator which caused such a huge and useless flame. It came very unexpectedly as the flame should be only inches long! Safety First!