Mangle and wringer
Two rollers that did chemistry as well as labour: they squeezed the suds back into the tub, and soap was expensive.
In detail
A pair of rollers turned by a handle, through which wet laundry was fed to force water out. A wringer was sold alongside the earliest domestic washing machines — an 1878 catalogue from one British maker lists washing machines, wringers, mangling machines, drying closets and laundry stoves as a set — and it is the least glamorous and most quietly clever of them. It did two jobs with one action. It removed water so the wash would dry in a house without central heating, and it wrung the suds BACK into the washing compartment rather than onto the floor, recovering soap for the next load. In a century when soap was made at home or bought at real cost, that is a chemical economy dressed up as a labour saving. The scale of what these machines displaced is best given by a customer rather than the maker: washing that took three days before it was out of hand could be finished by the same evening. Before indoor plumbing the household also carried every gallon in clean and out dirty. And mechanical water removal doing part of the chemical work is not a curiosity — it is what extraction does in professional carpet cleaning today.
Sources for this page
Sources
Through the Wringer: Laundry in the Late 19th Century
Smithsonian Libraries and Archives, 2019 · Reference work
Relied on for: That a January 1878 catalogue from Thomas Bradford & Co. offered washing machines, wringers, mangling machines, drying closets and laundry stoves, that the wringer extracted water and wrung suds back into the washing compartment recovering soap, the customer statement that a three-day wash could be finished the same evening, and that water was hauled by hand. (states this directly)
Verification: a person has read the passage relied on.
Read on — The Thomas Bradford & Co. catalogue of January 1878 and the customer testimonial. Supports the claim as stated. Puts a number on domestic laundry before machines — three days per wash — which is the fact that makes every modern laundry record legible. It also supplies a mechanism the register can use: the wringer recovering soap is mechanical water removal doing chemical work, the same logic as extraction in professional carpet cleaning.
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