Press roll

Claim 2

A press roll comprising: a fixed axial beam; a rotatable roll shell disposed about said beam to move in a free manner in a radial direction relative to said beam; and a plurality of hydrostatic supporting elements guidably mounted in said beam in a predetermined supporting plane to rotatably support said shell on said beam and to follow movements of said shell, said supporting elements constituting the sole means to restrict motion of said shell with respect to said beam in said plane.

Claim 3

A press roll as set forth in claim 1 further comprising at least one guide means for guiding said shell parallel to said supporting plane.

Claim 4

A press roll as set forth in claim 2 wherein said guide means includes a guide ring rotatably mounted within one end of said shell and mounted relative to said beam to move transversely of a longitudinal axis of said beam.

Claim 5

A press roll as set forth in claim 3 wherein said guide ring is slidably mounted on said beam.

Claim 6

A press roll as set forth in claim 4 wherein said beam has a pair of flats thereon and said guide ring has an elongated aperture with parallel guide surfaces therein in sliding contact with said flats.

Claim 7

A press roll as set forth in claim 4 wherein said beam has a pair of oppositely disposed grooves and said guide ring has a pair of opposed grooves, each said groove being disposed in said supporting plane and wherein said guide means further includes connecting members located in each of a groove in said beam and a groove in said guide ring to connect said guide ring to said beam.

Claim 8

A press roll as set forth in claim 4 wherein said guide means further includes a radially disposed pin passing through said beam and said guide ring.

Claim 9

A press roll as set forth in claim 3 which further comprises a fixed frame mounting each end of said beam therein and wherein said guide means is movably mounted on said frame.

Claim 10

A press roll as set forth in claim 8 wheRein one of said guide ring and said frame has guide grooves therein and the other of said guide ring and said frame has projections mounted thereon and projecting into a respective groove in said one of said guide ring and said frame.

Claim 11

A press roll comprising: a fixed axial beam; a roll shell; a plurality of hydrostatic supporting elements guidably disposed in said beam in a predetermined supporting plane to rotatably support said shell on said beam, said supporting elements being sized to follow movements of said shell, said supporting elements constituting the sole means to restrict motion of said shell with respect to said beam in said plane; and means for guiding said shell in a radial direction in freely movable relation to said beam during rotation of said shell on said beam.

Claim 12

A press roll comprising: a fixed axial beam; a roll shell; a plurality of hydrostatic supporting elements guidably disposed in said beam in a predetermined supporting plane to rotatably support said shell on said beam, said supporting elements being sized to follow movements of said shell, said supporting elements constituting the sole means to restrict motion of said shell with respect to said beam in said plane; and means for guiding said shell in a radial direction in freely movable relation to said beam during rotation of said shell on said beam.

Claim 13

A press roll comprising a beam, means supporting the beam at its ends and restraining the beam against rotation about its long dimension, a rotatable roll shell engaged with clearance about the beam, a plurality of hydrostatic supporting elements distributed lengthwise of the beam in position to exert stress on the inner surface of the shell in a common supporting plane substantially parallel to the long dimension of the beam, and means to permit, in response to force exerted on the exterior thereof, parallel translational motion of the shell in a direction substantially perpendicular to the long dimensions of the beam and shell, said last-named means including at each end of the beam: a. a bearing ring engaged between the beam and shell for rotation of the shell with respect to the ring, and b. means coupling the bearing ring to the beam to allow translation of the bearing ring with respect to the beam in a direction transverse of the long dimension of the beam while preventing relative rotation of the bearing ring and beam.

Claim 14

A press roll comprising a beam, means supporting the beam at its ends and restraining the beam against rotation about its long dimension, a rotatable roll shell engaged with clearance about the beam, a plurality of hydrostatic supporting elements distributed lengthwise of the beam in position to exert stress on the inner surface of the shell in a common supporting plane substantially parallel to the long dimension of the beam, and means to permit, in response to force exerted on the exterior thereof, parallel translational motion of the shell in a direction substantially perpendicular to the long dimensions of the beam and shell, said last-named means including at each end of the beam: a. a bearing ring engaged between the beam and shell for rotation of the shell with respect to the ring, and b. means coupling the bearing ring to the beam to allow translation of the bearing ring with respect to the beam in a direction transverse of the long dimension of the beam while preventing relative rotation of the bearing ring and beam.

Claim 15

A press roll according to claim 11 wherein said coupling means comprise two pairs of parallel plane mating surfaces on the beam and bearing ring.