My next door neighbor insists its the first prototype of the Roomba robot vacuum cleaner. He claims he recognizes it from a documentary he saw two months ago on the History Channel on the Roomba. The original was apparently designed by Dr. John Bull M.D. to pick up coal embers in 19th Century factories to prevent the buildings from burning down. Dr. Bull was known as a curious physician/tinkerer from John Hopkins University who is credited for several unique patents of products completely unrelated to medicine. The actual designer of the present Roomba was an engineer of some sorts who was looking through old patent books at the historic book section of a university library and disturbed the researchers laughing, it is said, when he saw plans of this device. He apparently then had an ah-ha moment after he fell laughing to the floor, which was filthy for a university library, and was inspired to build the Roomba.
I dunno bout my neighbor. He tells a lot of stories and he was drinking a Drake's Denogginizer which is a Double IPA with a 9.75% alcohol content. (Excellent by the way.)