| 摘要 |
A suction roll, for a paper-making machine having a hollow cylindrical roll shell with a cylindrical inner surface from which a suction box draws water, has members inserted into the roll shell openings. The insert members are apertured with radially-extending ducts for the suction of water to the roll shell inner surface. The insert members form a major portion of the shell inner surface and characterize that surface for relatively low-wear sealing with a suction box movable relative to the roll shell. |
