Methods of beating; Beaters of the Hollander type

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Methods of beating or refining; Beaters of the Hollander type (knotter screens D21F) > Methods of beating; Beaters of the Hollander type

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• D21D 1/04 Beater rolls or bars
• D21D 1/06 Bed plates
• D21D 1/08 Beaters with means for driving the pulp quickly
• D21D 1/10 Beaters with means for regulating the pressure between the beater roll and the bed plate
• D21D 1/12 Beaters with means for continuous pulp discharge
• D21D 1/14 Beaters with one beater roll and with vertical stuff circulation canal
• D21D 1/16 Beaters with means for returning the pulp over the head of the beater roll
• D21D 1/18 Beaters with two or more beater rolls