Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1995-06-08
1996-07-09
Czaja, Donald E.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
1623581, 492 7, 492 2, 492 20, D21F 308, D21F 300, B21B 2900
Patent
active
055341179
ABSTRACT:
A hydraulic crown support system employs a stationary cross head mounted within a cylinder or beneath an extended nip shoe. Individual hydraulic pistons are disposed along the stationary cross head, which, under the force of hydraulic pressure, support the inner wall of a roll or an extended nip shoe. The displacement of the support cylinders is controlled through one or more adjustable ports formed in the sidewall of the hydraulic cylinder or cylinders which support the roll or extended nip shoe. With a piston which extends from one end of the stationary cross head to the other, some tilting from one side to the other of the cross head can be achieved by the adjustment of the pressure ports, thus compensating for misalignment in the vertical direction between an extended nip or crown-controlled roll.
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Archer David J.
Beloit Technologies Inc.
Campbell Raymond W.
Czaja Donald E.
Fortuna Jos'e A.
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