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1. 发明专利

ES2002613T3 未知
公开(公告)号：ES2002613T3
公开(公告)日：1993-12-01
申请号：ES87630255
申请日：1987-12-01
申请人： BELOIT CORPORATION
发明人： CHAMBERLIN, JEFFREY LOEL , MCCOOL, MICHAEL ANTONY
IPC分类号： B03D1/02 , B03D1/04 , B03D1/14 , D21B1/32 , D21C5/02 , D21F1/70
摘要： A method and several embodiments of apparatus are disclosed for use in foam flotation separation. The method discloses performing the separation in a module (12) operated at nonatmospheric pressure, and the apparatus disclosed are suitable for use as the module (12) of the method. Both the method and the apparatus contemplate positive and negative pressure operation.

2. 发明专利

AU640666B2 A HEATED EXTENDED NIP PRESS APPARATUS 未知
公开(公告)号：AU640666B2
公开(公告)日：1993-09-02
申请号：AU5830990
申请日：1990-04-19
申请人： BELOIT CORPORATION
发明人： JERE W. CROUSE , JEFFREY H. PULKOWSKI , ROY J. PORTER
IPC分类号： D21F3/02
摘要： A heated extended nip press apparatus is disclosed for pressing water from a formed web. The apparatus includes a frame and a backing roll rotatably supported by the press frame. A press device is connected to the press frame and movable relative to the backing roll. The press device cooperates with the backing roll for defining therebetween an extended nip for the passage therethrough of the web. An endless looped blanket extends through the extended nip such that the web is disposed between the blanket and the backing roll. Additionally, the press device includes an arrangement for selectively changing the pressure applied on the blanket along a machine direction relative to a further pressure applied for moving the press device relative to the backing roll such that optimum web properties are obtained and delamination of the pressed web is inhibited. Cross-machine direction recesses in the press shoe enable the shoe to be selectively positioned in the machine direction.

3. 发明专利

AU638212B2 VACUUM ROLL TRANSFER APPARATUS 未知
公开(公告)号：AU638212B2
公开(公告)日：1993-06-24
申请号：AU3981689
申请日：1989-07-11
申请人： BELOIT CORPORATION
发明人： GREGORY L. WEDEL
IPC分类号： D21F3/10 , D21F5/04 , D21G9/00
摘要： A vacuum roll transfer apparatus is disclosed for drying a web extending through a single tier dryer section of a paper machine. The apparatus includes a rotatable perforate shell having a first and a second end. A stationary duct is disposed within and along the length of the shell between the ends of the shell. The duct is connected to a source of partial vacuum and the shell defines a plurality of holes along the length thereof such that is use of the apparatus, when the duct is connected to the source of partial vacuum, a partial vacuum is generated within a chamber defined between the shell and the duct. A flow restricting arrangement is disposed within the duct for generating a greater vacuum level adjacent to at least one of the ends of the shell for facilitating threading of a tail of the web.

4. 发明专利

AU637833B2 A TRANSFER APPARATUS 未知
公开(公告)号：AU637833B2
公开(公告)日：1993-06-10
申请号：AU6456990
申请日：1990-10-12
申请人： BELOIT CORPORATION
发明人： GREGORY LYNN WEDEL
IPC分类号： D21F5/00 , D21F5/04 , D21G9/00
摘要： A transfer apparatus (10A) is disclosed for transferring a web (WA) from an upstream dryer (12A) to a downstream dryer (14A) of a dryer section (16A). The apparatus includes a first dryer felt (18A) which extends around the upstream dryer (12A) for supporting the web such that the web is disposed between the first felt (18A) and the upstream dryer (12A) for drying a first side (20A) of the web. The first felt roll (40) is disposed downstream relative to the upstream dryer (12A) for guiding the first felt (18A) such that the first felt diverges relative to the upstream dryer (12A) and extends from the upstream dryer to and around the first felt roll (40). A second felt roll (42) is disposed between the upstream dryer (12A) and the first felt roll (40) such that the web is disposed between the second felt roll and the first felt. A second dryer felt (28A) extends around the downstream dryer (14A) for supporting the web such that the web is disposed between the second dryer felt and the downstream dryer for drying a second side (34A) of the web. The second felt (28A) passes around the second felt roll (42) and extends from the second felt roll to and around the downstream dryer (14A) such that the first and the second felts define therebetween a web transfer section (32A), the web being sandwiched between the first and the second felts (18A,28A) between the second and the first felt rolls. A device (44) is provided for positively transferring the web from the first felt (18A) to the second felt (28A) when the first felt diverges relative to the second felt.

5. 发明专利

AU634977B2 INTERMEDIATE VACUUM ROLL FOR DRYER 未知
公开(公告)号：AU634977B2
公开(公告)日：1993-03-11
申请号：AU4201789
申请日：1989-08-14
申请人： BELOIT CORPORATION
发明人： GREGORY L. WEDEL
IPC分类号： D21F3/10 , D21F5/04 , D21F5/10 , D21G9/00
摘要： A single tier dryer section apparatus is disclosed for drying a web extending through a paper machine. The apparatus includes a first dryer and a dryer felt extending around the first dryer such that the web is disposed between the felt and the first dryer for drying the web. A vacuum transfer roll is disposed downstream relative to the first dryer such that the web and felt extend contiguously from the first dryer to and around the transfer roll so that the felt is disposed between the web and the roll during transit of the web and felt around the roll. A second dryer is disposed downstream relative to the transfer roll such that the web and the felt extend contiguously from the transfer roll to and around the second dryer so that the web is disposed between the felt and the second dryer during transit of the web and the felt around the second dryer. The transfer roll includes a perforate shell such that when the roll is connected to a source of partial vacuum, a partial vacuum is generated within the shell for urging the web into close conformity with the felt and towards the perforate shell. The transfer roll is also movable from a first location to a second location. The first location is closely adjacent to the dryers so that the partial vacuum urges the web into conformity with the felt for inhibiting fluttering of the web. The second location is farther away from the dryers than the first location so that damage to the first dryer and the roll in the event of the web wrapping around the first dryer is inhibited.

6. 发明专利

CA2029205A1 HEADBOX APPARATUS FOR FORMING A MULTI-PLY WEB 未知
公开(公告)号：CA2029205A1
公开(公告)日：1991-05-05
申请号：CA2029205
申请日：1990-11-02
申请人： BELOIT CORPORATION
发明人： TURNER, JAMES A.
IPC分类号： D21F1/02

7. 发明专利

CA2029252A1 TRANSFER APPARATUS 未知
公开(公告)号：CA2029252A1
公开(公告)日：1991-05-04
申请号：CA2029252
申请日：1990-11-02
申请人： BELOIT CORPORATION
发明人： WEDEL, GREGORY L.
IPC分类号： D21F5/00 , D21F5/04 , D21G9/00
摘要： A transfer apparatus (10A) is disclosed for transferring a web (WA) from an upstream dryer (12A) to a downstream dryer (14A) of a dryer section (16A). The apparatus includes a first dryer felt (18A) which extends around the upstream dryer (12A) for supporting the web such that the web is disposed between the first felt (18A) and the upstream dryer (12A) for drying a first side (20A) of the web. The first felt roll (40) is disposed downstream relative to the upstream dryer (12A) for guiding the first felt (18A) such that the first felt diverges relative to the upstream dryer (12A) and extends from the upstream dryer to and around the first felt roll (40). A second felt roll (42) is disposed between the upstream dryer (12A) and the first felt roll (40) such that the web is disposed between the second felt roll and the first felt. A second dryer felt (28A) extends around the downstream dryer (14A) for supporting the web such that the web is disposed between the second dryer felt and the downstream dryer for drying a second side (34A) of the web. The second felt (28A) passes around the second felt roll (42) and extends from the second felt roll to and around the downstream dryer (14A) such that the first and the second felts define therebetween a web transfer section (32A), the web being sandwiched between the first and the second felts (18A,28A) between the second and the first felt rolls. A device (44) is provided for positively transferring the web from the first felt (18A) to the second felt (28A) when the first felt diverges relative to the second felt.

8. 发明专利

CA2025454A1 PROCESS AND MECHANISM TO EMPTY PULPING DIGESTER 未知
公开(公告)号：CA2025454A1
公开(公告)日：1991-03-26
申请号：CA2025454
申请日：1990-09-14
申请人： BELOIT CORPORATION
发明人： ANDREWS, ETHAN K.
IPC分类号： D21C3/00 , D21C7/08 , D21C7/12
摘要： A process and mechanism for cooking fibrous paper pulp including a digester (10) wherein the pulp is cooked under elevated temperatures and pressures for a predetermined time, a discharge line (22) leading form the lower end of the digester (10) to a blow tank (24), a valve (23) in the discharge line (22) and cycling means connected to the valve cyclically opening and closing the valve (23) while the contents are emptied from the digester (10).

9. 发明专利

CA2021941A1 METHOD OF MANUFACTURING A COMPRESSIBILITY GRADIENT IN PAPER 未知
公开(公告)号：CA2021941A1
公开(公告)日：1991-01-27
申请号：CA2021941
申请日：1990-07-25
申请人： BELOIT CORPORATION
发明人： KELLER, SAMUEL F.
IPC分类号： B31F1/12 , D21G1/00 , D21H23/00 , D21H23/56 , D21H25/14
摘要： The method includes the steps of coating the peripheral surface of a roll with a film of plasticizer. An offset roll disposed adjacent to the roll is rotated such that the roll and the offset roll define therebetween a transfer nip so that a film of the plasticizer is transferred to the offset roll. The web is moved past the offset roll such that the web contacts the offset roll downstream relative to the transfer nip so that the film of the plasticizer is offset onto the web. The web is then passed with the offset coating of plasticizer through a calendering nip such that between the offset coating of the web and the subsequent calendering of the web with the offset coating, the plasticizer is permitted to uniformly and controllably penetrate into the web such that the Z-directional compressibility of the web is controlled prior to the web extending through the calendering nip.

10. 发明专利

ZA8705911B A PRESS APPARATUS 未知
公开(公告)号：ZA8705911B
公开(公告)日：1988-02-12
申请号：ZA8705911
申请日：1987-08-11
申请人： BELOIT CORPORATION
发明人： LEROY HENRY BUSKER , DENNIS CALLAHAN CRONIN , DAVID VINCENT LANGE , ELIZABETH ANNE MACKLEM , JEFFREY HENRY PULKOWSKI
IPC分类号： D21F3/08 , D21F1/00 , D21F3/02 , D21F
CPC分类号： D21F3/0209 , D21F3/0281

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