D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
D21D 5/16 (2006.01)
Patent
CA 2420431
A screen apparatus includes a tank, a first cylindrical screen disposed inside the tank to form a first chamber, and a second cylindrical screen disposed outside the first cylindrical screen. The second cylindrical screen defines a first chamber section facing the first cylindrical screen-and having upper and lower portions communicating with an inlet portion, and a second chamber section. A connection member has a groove facing the first chamber section at an intermediate portion of the second cylindrical screen, and a passage communicating with the groove for discharging paper stock. The paper stock flows to the first chamber section through the upper and lower portions. A part of the paper stock passing through the first and second cylindrical screens is discharged through first and second selection outlet portions, and a part of the paper stock not passing through the first and second cylindrical screens is discharged through the passage.
Aikawa Yoshihiko
Aikawa Iron Works Co. Ltd.
Seaby & Associates
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