Patent CA1172887A successfully refreshed from Google Patents.
CA1172887A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Press roll
Assignee: Sulzer Escher Wyss AG
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Filing: 1982-06-02
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Granted: 1984-08-21
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Expires: 2002-06-02
Abstract
Abstract Attorney's docket 6997 CAN INVENTORS: HERBET HOLIK, HELMUT HUND and PETER MIRSBERGER INVENTION: PRESS ROLL ABSTRACT OF THE DISCLOSURE A press roll contains a stationary roll support or beam and a roll shell rotatable about the stationary roll support, the roll shell being formed of an easily deformable material. The roll shell is supported at a support surface located at the region of the roll support. This support surface can be convex and possess a larger radius than the radius of the roll shell, can be planar or concave. Guide surfaces possessing a convex profile laterally merge at the support surface. The support surface and the guide surfaces are provided with a pressure lubrication and possibly with hydrostatic bearing pockets. A support part or element can be movable in relation to the stationary roll support or beam in the manner of controlled deflection rolls.
Inventors
- 👤 Herbert Holik
- 👤 Helmut Hund
- 👤 Peter Mirsberger
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/0209; D21F3/0218; D21F3/0227; D21F3/0245; D21F3/08; F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; F16C13/028
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
139 words
A press roll comprising: a stationary roll support; a roll shell mounted to be rotatable about said stationary roll support; said roll shell being formed of an easily deformable material; a support surface at which there is supported the roll shell at the roll support at the region of a pressing location; said roll shell having an inner surface of substantially circular cylindrical shape; said roll shell moving at its inner surface along said support surface; said support surface possessing at least at a portion of its extent in the circumferential direction of the roll shell a shape which deviates from said substan-tially circular cylindrical shape of the inner surface of the roll shell; and said shape of said support surface deviating in a manner enabling an accommodation to a counter surface intended to coact with the press roll.
Claim 2
Dependent Claim
139 words
A press roll comprising: a stationary roll support; a roll shell mounted to be rotatable about said stationary roll support; said roll shell being formed of an easily deformable material; a support surface at which there is supported the roll shell at the roll support at the region of a pressing location; said roll shell having an inner surface of substantially circular cylindrical shape; said roll shell moving at its inner surface along said support surface; said support surface possessing at least at a portion of its extent in the circumferential direction of the roll shell a shape which deviates from said substan-tially circular cylindrical shape of the inner surface of the roll shell; and said shape of said support surface deviating in a manner enabling an accommodation to a counter surface intended to coact with the press roll.
Claim 3
Dependent Claim
55 words
The press roll as defined in claim 1, wherein: said support surface possesses a convex shape at least at a portion of its extent in the circumferential direction of the roll shell; and said convex shape having a larger radius than the radius of the cylindrical shape of the inner surface of the roll shell.
Claim 4
Dependent Claim
25 words
The press roll as defined in claim 1, wherein: said support surface possesses a substantially flat configuration at least at a portion of its extent.
Claim 5
Dependent Claim
68 words
The press roll as defined in claim 1, wherein: said support surface possesses a concave configuration in the circumferential direction of the roll shell; and said support surface having a shape which is accommodated to the radius of a counter roll coacting with the press roll and to the thickness of a pressed web material located between the counter roll and the support surface and the roll shell.
Claim 6
Dependent Claim
59 words
The press roll as defined in claim 1, further including: a guide surface operatively correlated with the support surface at least at one side thereof; and said guide surface having a convex profile provided with at least one radius which is essentially equal to the radius of the inner surface of the roll shell when assuming its cylindrical shape.
Claim 7
Dependent Claim
58 words
The press roll as defined in claim 1, further including: a guide surface operatively correlated with the support surface at least at one side thereof; and said guide surface having a convex profile provided with at least one radius which is smaller than the radius of the inner surface of the roll shell when assuming its cylindrical shape.
Claim 8
Dependent Claim
21 words
The press roll as defined in claim 1, further including: pressure lubricant infeed means provided for at least the support surface.
Claim 9
Dependent Claim
23 words
The press roll as defined in claims 5 or 6 further including: pressure lubricant infeed means provided for at least said guide surface.
Claim 10
Dependent Claim
23 words
The press roll as defined in claim 1, further including: hydrostatic bearing pocket means for a hydrostatic lubricant provided for the support surface.
Claim 11
Dependent Claim
25 words
The press roll as defined in claims 5 or 6, further including: hydrostatic bearing pocket means for a hydrostatic lubricant provided for said guide surface.
Claim 12
Dependent Claim
18 words
The press roll as defined in claim 1, wherein: said support surface is formed at said roll support.
Claim 13
Dependent Claim
41 words
The press roll as defined in claim 1, wherein: said support surface is formed at least at one support element; and a hydrostatic support arrangement for supporting the support element upon the roll support in the manner of a piston-and-cylinder unit.
Claim 14
Dependent Claim
42 words
The press roll as defined in claim 12, further including: hydrostatic bearing pocket means; said hydrostatic support arrangement having a pressure compartment; and throttle bore means for connecting the hydrostatic bearing pocket means with the pressure compartment of the hydrostatic support arrangement.
Claim 15
Dependent Claim
32 words
The press roll as defined in claim 7, further including: at least two rows of hydrostatic bearing pockets; and special supply line means connected with said two rows of hydrostatic bearing pockets.
Claim 16
Dependent Claim
32 words
The press roll as defined in claim 7, further including: at least two rows of support elements; and special supply line means connected with said at least two rows of support elements.
Claim 17
Dependent Claim
49 words
The press roll as defined in claim 1, wherein: said roll shell has an inner compartment means for sealing in essentially gas-tight fashion the inner compartment of said roll shell; and an infeed line for compressed air with which there is connected said inner compartment of said roll shell.
References Cited (Backward Citations)
No citation records indexed.
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