Boeing invents new gizmo to possibly replace flight attendant carts

Boeing has filed for a patent on a downright bizarre invention: "The Rail Mounted Beverage Dispenser for Commercial airplanes." 

Will Horton, an analyst at CAPA-Center for Aviation, described the invention best in a tweet.

But if you prefer a more convoluted description of the contraption, you can check out the official abstract on the U.S. Patent and Trademark Office website. 

What do you think of this idea? Could it possibly work?