Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 279
Fig. 62.—Square beater Washing Macbine, … Tie. 63.—Squeezing Eollere. 266 DYEING OF TEXTILE FABRICS. [Chap. XII. square roller, or beater, revolves in a direction con-trary to that of tlie pieces, wliich thus receive a violentflapping motion while moving in a state of tension alongthe surface of the water. This machine serves admirablyfor…
Dyes and dyeing
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