In the 1800's laundry was almost a three day affair
Depending upon one's religious views about working on the Sabbath....
Laundry was gathered up and sorted on Sunday evening.
Whites would be put to soak overnight in a tub of water with a bit of perhaps soda and or soap.
Monday began the washing by hand or whatever means. This was an orgy of soap, heated water, boiling, rinsing, rinsing, rinsing, bluing (if needed for whites), then finally mangling and hanging wash on the line.
Tuesday washing was taken down from lines (if dried) then sprinkled and allowed to rest over night.
Wednesday was ironing time and then laundry was allowed to cool before being put away folded. Four days later (Sunday) the whole thing started all over again.
By the l950's this little contraption would have saved some effort, long as one had indoor plumbing for hot water. If one lived in an cold water flat apartment then it would be back to boiling pots or kettles for hot water for washing.