Today in 1950, US Patent 2511623 A was issued, an invention of Leonard Darcangelo, for his “Keg Truck.” There’s no Abstract, though it’s described this way in the application:

My invention relates to improvements in, or a new type of, keg truck.

The principal object of my invention is to provide a one-man truck, of simple and inexpensive construction for lifting and transporting kegs of different sizes conveniently and easily, and when a keg is mounted on the truck it will be held securely in position and prevented from slipping while being moved, or transported.