I reached into the tool box for my old helper. I remember now how we broke it so it was time I rebuild the thing. now this tool is approaching 80 years old but was a staple for a lot of shops in the 40-60 when you fixed things. I though it worth rebuilding again. the last time we used a stick welder this time the wire feed turned out a lot handier. anyone other them me know what it was designed to do?