Zipper trucks, AKA "barrier transfer machines", in action.
https://www.youtube.com/watch?v=hMkLcAstxgA
https://www.youtube.com/watch?v=Qr9_3wBFQ_c
Printable View
Zipper trucks, AKA "barrier transfer machines", in action.
https://www.youtube.com/watch?v=hMkLcAstxgA
https://www.youtube.com/watch?v=Qr9_3wBFQ_c
That looks familiar! Quite the machine but it weird's you out visually when you go to pass it.