Thanks Cletis! I had no idea that it was a 1940's device. It seemed too simple an idea to be an original.

Wrench, just wait till it needs repairs! You have to send it to a po box in Hoopeston, IL. I sent mine certified mail, so I know that it arrived in the po box 21 days before they even bothered to pick it up. I have no idea when they will repair it, or even bother to send it back. Either they are swamped with bad products, or they are totally messed-up or perhaps it is a combination of the two.