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公开(公告)号：US3649449A
公开(公告)日：1972-03-14
申请号：US3649449D
申请日：1970-01-27
Applicant: TAMPELLA OY AB
Inventor： NYKOPP ERIK ALBERT
Abstract: A box structure which may be a suction box or blow box has a bottom wall, side walls, and an apertured cover and is mounted on a papermaking machine such that the cover is yieldably biased against a wire or felt carrying a paper web to dewater the web through the wire or felt or provide enhanced adherence of the web to the wire or felt. The entire box may be pivoted around a shaft and bracket and biased against the wire or felt by a spring connected to the bottom wall or the box may be immovable with a portion of the cover biased against the wire or felt by connection to a pivot arm and elastic tube.
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