I am a computer tech by trade, but I love to check out the pictures on your site. I have attached some pictures from my vacation. The pics are from Ocho Rios Jamaica. The generator was powering a hand drill that a guy was using to drill into the dock to attach new stairs.
If you look a little closer at the second picture, you will notice the welding stinger with a stub of rod still in it. Most engine-driven welders have a decent-sized 120 winding in them If you need an engine-driven unit, there generally is no electricity to be had and you need power tools to work on whatever you are welding. Our favorite term for that setup was The infinite extension cord.