I saw this old clip how 1900 washer washes clothes automatically, in just six minutes using nothing more than 50 pounds of water pressure. Amazing, eh? There are models with hand crank and electric, too. Kind of make you wonder what Maytag and GE was thinking when they set the timer washer for 30 minutes.
All it does is some slates in a tub going back and forth in some soapy water. Imagine! No more washboards! No more premature clothes wear! Cleaner clothes in just six minutes!