In the 80s we lived in Detroit, late night fast food wasn’t easy to come by but there was an Arby’s that was open after the bars closed. Their drive thru was a chain driven elevator thingy that lifted the food over your vehicle about 10 feet from the window that didn’t open. I imagine it was for safety of the workers.
There was a coffee shop in Downtown Detroit that closed very recently, it had all the various beans on display, when you ordered coffee the system would deliver the beans through vacuum tubes to the grinder.
I house sit for a friend while they’re down south for the winter, while they’re gone I get to watch this being installed.
It’s a vacuum tube for people.
