Roller for pressure treatment of a continuous web of material

Details Roller for pressure treatment of a continuous web of material Roller for pressure treatment of a continuous web of material

1989-02-17

1990-07-17

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291162, 384 99, B21B 1302

Patent

active

049412507

ABSTRACT:
A hydraulically supported roller comprises a hollow cylinder that rotates about a stationary cross-head. Cylindrical recesses are radially disposed in the cross-head. Piston-like supporting plungers are displaceable in the recesses against the inner circumference of the cylinder. To limit the stroke of the supporting plunger in the cylinder recess and, hence, the displacement of the cylinder relative to the cross-head, at least one conduit is provided, which leads from the interior of the cylindrical recess to the clearance space outside of the cross-head. Pressure fluid is allowed to escape from the cylindrical recess to limit the stroke when the conduit is uncovered at a predetermined stroke by the supporting plunger.

REFERENCES:
patent: 3885283 (1975-05-01), Biondetti
patent: 4064607 (1977-12-01), Wolf
patent: 4726691 (1988-02-01), Lehmann

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