Paper making and fiber liberation – Apparatus – Apparatus repair – cleaning or conditioning
Patent
1989-09-26
1990-10-30
Hastings, Karen M.
Paper making and fiber liberation
Apparatus
Apparatus repair, cleaning or conditioning
162257, 474104, D21F 140
Patent
active
049666533
ABSTRACT:
The invention relates to an apparatus for controlling the passage of a moving band (1) or the like in a paper machine or the like. The apparatus comprises a roll (2) mounted at one end turnably with respect to a machine body (3) while the other end is mounted turnably to an adjusting device (6). The adjusting device comprises a turning arm (9) for a roll (2) and an auxiliary arm (10) which are mounted coaxially turnably. The apparatus further comprises one or more air bellows (13) connected between the turning arm (9) and the auxiliary arm (10). Furthermore, at least one liquid bellows (11) is provided between the auxiliary arm (10) and the body or a body part (7). The position of the auxiliary arm (10) with respect to the body is adjusted by varying the amount of liquid in the liquid bellows. By varying the volume of the bellows, the roll (2) is turned about a shaft (8) and the direction of the roll shaft with respect to the longitudinal direction of the band (1) in its transverse direction. (FIG. 2).
REFERENCES:
patent: 1205661 (1916-11-01), Plansoen
patent: 3009364 (1961-11-01), Beachler
patent: 3043153 (1962-07-01), Hindle et al.
patent: 3101005 (1963-08-01), Mittag
patent: 3452908 (1969-07-01), Hindle et al.
patent: 4645066 (1987-02-01), Richardson
Rantala Mauri
Syrja Lasse
Hastings Karen M.
OY Tampella AB
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