Armorer’s Gas Saver
OK. You guys are making this WAY too hard!
This is a standard oxy/acetylene torch rig and standard oxy/acetylene gas saver.
This is basically a stand. It is fueled by oxygen and propane, no additional or exceptional equipment required (except, of course the gas saver). The torch is set up with a large Rosebud tip. A small copper pipe runs from the gas saver pilot light to a standard torch tip next to the rosebud tip.
You step on the pedal, a seesaw mechanism pushes up on the gas saver lever – heat on. You step off, it goes back to pilot light.
This leaves both hands free for either holding the work or holding the work with one hand and the ready hammer in the other.