from The Century Dictionary and Cyclopedia
- n. In bleaching, an arrangement by which water or a weak alkaline lye contained in an iron boiler is forced upward, under pressure of the steam formed through a central pipe and discharged over the cloth to be washed, and gradually percolates back to the boiler, to be again forced up and discharged, thus securing continued circulation of the liquid. An injector is sometimes used as the source of the necessary pressure.
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