This happens in my road, they only recently upgraded from a horse and carriage to a van.
They're the Gypsy's, in past years the Gypsy's would go down roads on horse and carriages ringing a bell to tell people to bring out any old stuff and junk they might find useful, they would put it in the carriage and carry on driving (giving it away is better than throwing it away and all...). They still do do this but tend to use a van now, they can cover more road and area.
So basically, if you have any old working stuff you go out and give it, I'd recommend being adult though, Gypsy's are well-known to be against the law and violent if you get on their rough side.