Hydraulically actuated breast roll shake

Details Hydraulically actuated breast roll shake Hydraulically actuated breast roll shake

1995-02-21

1996-10-01

Lacey, David L.

Paper making and fiber liberation

Processes and products

Running or indefinite length work forming and/or treating...

162355, 162262, 162DIG11, D21F 18

Patent

active

055608086

ABSTRACT:
The invention is directed to a roll shake connected to a roll in a paper-making machine, wherein the roll is movable in a direction generally parallel to an axis of the roll. A first hydraulic ram assembly, including a first cylinder and a first ram reciprocally disposed in the first cylinder, is attached to the roll. A second hydraulic ram assembly, including a second cylinder and a second ram reciprocally disposed in the second cylinder, is rigidly connected to the first cylinder. A counter mass is connected to the second ram, and is movable in a direction generally parallel to the roll axis. A controller is connected to the first hydraulic ram assembly and the second hydraulic ram assembly. The controller independently controls reciprocating movements of the first ram and the second ram within the first cylinder and the second cylinder, respectively, whereby a resultant momentum of the roll and the counter mass is approximately equal to zero at any point in time.

REFERENCES:
patent: 4055460 (1977-10-01), Buchanan

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