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公开(公告)号：CA2386738A1
公开(公告)日：2001-04-26
申请号：CA2386738
申请日：1999-10-15
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , JACKSON STACEY L
Abstract: A multilayer composite doctor blade (10) has a side edge configured for application to the surface of a rotating roll in a paper making machine. The doctor blade has an inner core (28) and intermediate layers (30, 32). The doctor blade may also include outer layers. The inner core is predominantly polymeric material. The intermediate layers on opposite sides of the core include reinforcing fibers. The side edge of the doctor blade has an abrasiveness as measured by ASTM test method D5181-91 of between about 4.0 t o 5.0.
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公开(公告)号：AT356251T
公开(公告)日：2007-03-15
申请号：AT02725558
申请日：2002-04-09
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , REID ROBERT A , GOODNOW RONALD F
IPC: D21G3/00
Abstract: In a paper machine having a roll rotating about an axis extending in a cross machine direction, and having a doctor blade applied to the roll surface by a blade holder parallel to the axis and carried on a doctor back, an apparatus is provided for accommodating relative movement between the blade holder and the doctor back in the cross machine direction during mounting and removal of the blade holder. The apparatus comprises a rail fixed to the doctor back and extending longitudinally in the cross machine direction. A groove extends along the length of the guide rail. The groove has a bottom, a width measured between confronting sides, and a top defined by ledges projecting inwardly from the sides, with inner edges spaced one from the other to define a slot that underlies the blade holder and has a width narrower than the width of the groove. A plurality of shafts are spaced along the length of the blade holder and project downwardly through the slot and into the groove. First and second independently rotatable elements are carried by each of the shafts. The first rotatable elements are located in the slot and are dimensioned to contact the inner edges of the ledges, and the second rotatable elements are located in the groove and are dimensioned to contact the undersides of the ledges.
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公开(公告)号：CA2386738C
公开(公告)日：2007-03-13
申请号：CA2386738
申请日：1999-10-15
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , JACKSON STACEY L
Abstract: A multi-layer composite doctor blade has a side edge configured for application to the surface of a rotating roll in a paper making machine. The doctor blade has a n inner core and intermediate layers preferably enclosed by outer layers. The inner core is predominantly polymeric material. The intermediate layers on opposite sides of the core include reinforcing fibers. The side edge of the doctor blade has an abrasiveness as measured by ASTM test method D5181-91 of between about 4.0 to 5.0.
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公开(公告)号：AT269211T
公开(公告)日：2004-07-15
申请号：AT99953199
申请日：1999-10-15
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , JACKSON STACEY L
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Patent Agency Ranking
公开(公告)号：CA2441945A1
公开(公告)日：2002-10-31
申请号：CA2441945
申请日：2002-04-09
Applicant: KADANT WEB SYSTEMS INC
Inventor： GOODNOW RONALD F , REID ROBERT A , BRAUNS ALLEN J
IPC: D21G3/00
Abstract: In a paper machine having a roll (12) rotating about an axis (A1) extending in a cross machine direction, and having a doctor blade (14) applied to the rol l surface by a blade holder (16) parallel to the axis and carried on a doctor back (18), an apparatus is provided for accommodating relative movement between the blade holder (16) and the doctor back (18) in the cross machine direction during mounting and removal of the blade holder (16). The apparatu s comprises a rail (42) fixed to the doctor back (18) and extending longitudinally in the cross machine direction. A groove (46) extends along t he length of the guide rail. The groove (46) has a bottom (48), a width measure d between confronting sides (50), and a top defined by ledges (52) projecting inwardly from the sides (50), with inner edges spaced one from the other to define a slot (54) that underlies the blade holder and has a width narrower than the width of the groove (46). A plurality of shafts (56) are spaced alo ng the length of the blade holder and project downwardly through the slot (54) and into the groove (46). First (62) and second (64) independently rotatable elements are carried by each of the shafts. The first rotatable elements (62 ) are located in the slot (54) and are dimensioned to contact the inner edges of the ledges(52), and the second rotatable elements (64) are located in the groove (46) and are dimensioned to contact the undersides of the ledges (52) .
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公开(公告)号：BRPI0608939A2
公开(公告)日：2010-02-17
申请号：BRPI0608939
申请日：2006-03-20
Applicant: KADANT WEB SYSTEMS INC
Inventor： JOHNSON ROBERT P , REID ROBERT A , BRAUNS ALLEN J
IPC: D21G3/00
Abstract: A reciprocating doctor is provided for doctoring the cylindrical surface of a roll rotating about a first axis. The doctor includes a doctor back with a blade holder carrying a doctor blade. The doctor back has journals aligned on a second axis parallel to the first rotational axis of the roll. The journals are rotatably supported in sleeve bearings, and the sleeve bearings are in turn supported by diaphragms spaced along the second axis. The sleeve bearings are fixed axially on their respective journals, and the diaphragms have hub portions surrounding and fixed relative to the sleeve bearings, and peripheral portions surrounding the hub portions and fixed relative to a support structure. The diaphragms are configured to resiliently accommodate reciprocating movement of their hub portions and associated sleeve bearings relative to their peripheral portions and associated support structure. A first operating mechanism serves to rotate the doctor back about the second axis, and a second operating mechanism serves to impart reciprocating movement to the journals and their sleeve bearings along the second axis.
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公开(公告)号：DE60218647T2
公开(公告)日：2007-11-29
申请号：DE60218647
申请日：2002-04-09
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , REID ROBERT A , GOODNOW RONALD F
IPC: D21G3/00
Abstract: In a paper machine having a roll rotating about an axis extending in a cross machine direction, and having a doctor blade applied to the roll surface by a blade holder parallel to the axis and carried on a doctor back, an apparatus is provided for accommodating relative movement between the blade holder and the doctor back in the cross machine direction during mounting and removal of the blade holder. The apparatus comprises a rail fixed to the doctor back and extending longitudinally in the cross machine direction. A groove extends along the length of the guide rail. The groove has a bottom, a width measured between confronting sides, and a top defined by ledges projecting inwardly from the sides, with inner edges spaced one from the other to define a slot that underlies the blade holder and has a width narrower than the width of the groove. A plurality of shafts are spaced along the length of the blade holder and project downwardly through the slot and into the groove. First and second independently rotatable elements are carried by each of the shafts. The first rotatable elements are located in the slot and are dimensioned to contact the inner edges of the ledges, and the second rotatable elements are located in the groove and are dimensioned to contact the undersides of the ledges.
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公开(公告)号：MXPA03009288A
公开(公告)日：2004-01-29
申请号：MXPA03009288
申请日：2002-04-10
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J
IPC: D21G3/00
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公开(公告)号：NO20021740L
公开(公告)日：2002-04-12
申请号：NO20021740
申请日：2002-04-12
Applicant: KADANT WEB SYSTEMS INC
Inventor： BRAUNS ALLEN J , JACKSON STACEY L
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