Don, when I heard what you said it did not register! I had to go pickup my Grand child a minute ago and while I was driving along I was re-running all this in my mind. When you described it again I had to Google and here is what came up!!
Now that is something I can work with I believe. It gives me the control at the tip and all I have to worry about is an acetylene bottle! I will have to check this out some more!!