I have pretty much the same machine under the Goblin name (Model T2). It was set up to be a stationary Cleaner (central vac) though. From various design clues I believe it was made in either the 30's or 40's but I may be wrong. I have never found anything that confirms or denys that.
I’ve got a BVC turbinet 3 although it needs work as the cord is coming out of the blower port, Here is the original advert, It would be nice if I knew someone else who had one of these so that way I could Reconfigure it so everything comes out the right place