(under subclass 268) Means and methods wherein rotating cylindrical or drum sifters are employed to sift material suspended in liquid or liquid-supply means are associated therewith to promote sifting.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.1, 13, 14, 17, 42, and 44, for combinations of sifting and fluid suspension or stratifying type separations.
SEE OR SEARCH CLASS
162, Paper Making and Fiber Liberation,
323+, and 357 for paper making machines employing a foraminous cylinder mold.
