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    WEB SUPPORTING FOIL
    1.
    发明专利
    WEB SUPPORTING FOIL 失效

    公开(公告)号：JPH11124785A

    公开(公告)日：1999-05-11

    申请号：JP23860098

    申请日：1998-08-25

    Applicant: BELOIT TECHNOLOGIES INC

    Inventor： BROWN DALE A ,  KRAMER GERALD J ,  PAGE ROBERT E ,  SMITH DAVID A

    IPC: D21F1/52 ,  D21F5/00 ,  D21F7/00 ,  D21G3/00 ,  D21G9/00

    Abstract: PROBLEM TO BE SOLVED: To provide a tissue web supporting apparatus capable of reducing paper breaks and the amount of dust occurring in scraping a tissue web from the surface of a yankee dryer. SOLUTION: This web supporting foil is installed in the vicinity of a yankee dryer over a creping doctor 24 and the foil supports a web when it is separated from the dryer. An adjustable air deflector 46 which is tangentially arranged on the yankee dryer is attached to the top of the foil. Air moving along the web is screened by the air deflector 46. An opening part with small holes sucks air from a tip pocket 44 for collecting fibers broken in creping treatment. The web is retained at the bottom side of the foil by one or more air jets directed toward the bottom of the foil. The air jets function as a Coanda air jet and generates Bernoulli's effect for retaining the web on the bottom of the foil while preventing the adhesion of the web to the bottom of the foil.

    AN APPARATUS FOR MANUFACTURING A DRIED WEB OF PAPER
    2.
    发明专利
    AN APPARATUS FOR MANUFACTURING A DRIED WEB OF PAPER 未知

    公开(公告)号：CA2107236C

    公开(公告)日：1996-06-11

    申请号：CA2107236

    申请日：1992-01-24

    Applicant: BELOIT TECHNOLOGIES INC

    Inventor： PAGE ROBERT E

    IPC: D21G9/00 ,  D21F2/00 ,  D21F3/02 ,  D21F9/00 ,  D21F9/02

    Abstract: An apparatus (10) includes a forming section (12) for forming a web (W) from stock. The apparatus (10) also includes a press section (14) which is disposed downstream relative to the forming section (12) for removing a portion of water from the formed web (W). The press section (14) includes a suction pick-up roll (18) disposed downstream relative to the forming section (12) for picking up the formed web (W) from the forming section (12). A press felt (20) extends around the suction pick-up roll (18) such that in use of the apparatus (10), the formed web (W) is picked up from the forming section (12) and is supported by the press felt (20). An extended nip press (22) is disposed downstream relative to the pick-up means (16). The press (22) includes a rotatable backing roll (24) and a pressing shoe (26) which cooperates with the backing roll (24) for defining therebetween an elongate pressing section (28). A bearing blanket (30) movably extends through the pressing section (28) with the blanket (30) cooperating with the suction pick-up roll (18) such that the formed web (W) is transferred from the press felt (20) to the blanket (30). The apparatus (10) also includes a dryer section (32) which includes a rotatable dryer (34) having a heated surface (36) which cooperates with the blanket (30) such that the pressed web (W) is transferred from the blanket (30) to the heated surface (36) of the dryer (34). A dryer felt (38) extends around a portion (40) of the heated surface (36) which is disposed downstream relative to the blanket (30) such that the web (W) is sandwiched between the dryer felt (38) and the dryer (34).

    5.
    发明专利
    未知

    公开(公告)号：ES2197444T3

    公开(公告)日：2004-01-01

    申请号：ES98630045

    申请日：1998-08-14

    Applicant: BELOIT TECHNOLOGIES INC

    Inventor： BROWN DALE A ,  KRAMER GERALD J ,  PAGE ROBERT E ,  SMITH DAVID A

    IPC: D21F1/52 ,  D21F5/00 ,  D21F7/00 ,  D21G3/00 ,  D21G9/00

    Abstract: A web support foil positioned adjacent to a Yankee dryer above a creping doctor. The foil supports the web as it leaves the dryer. Mounted to the top of the foil is an adjustable air deflector which is positioned tangent to the Yankee dryer. The air deflector blocks air moving along the web. A slotted opening draws air from a leading-edge pocket collecting fibers which are broken loose during the creping action. The web is held against the bottom side of the foil by one or more air jets which are directed over the bottom surface on the foil. The jets of air function as coanda air jets and prevent the web from sticking to the bottom surface of the foil while creating a Bernoulli effect which holds the web against the bottom of the foil.

    8.
    发明专利
    未知

    公开(公告)号：FI97739C

    公开(公告)日：2002-09-06

    申请号：FI921154

    申请日：1992-03-18

    Applicant: BELOIT TECHNOLOGIES INC

    Inventor： PAGE ROBERT E

    IPC: D21F3/10 ,  D21F2/00

    Abstract: Apparatus for transferring a newly formed paper web from the forming fabric over a couch roll in a papermaking machine includes a transfer roll which guides a pick-up felt into nipping engagement with the paper web over the couch roll. The nip is located intermediate the circumferentially spaced ends of a vacuum zone on the surface of the couch roll. The web with the forming fabric on one side and the pick-up felt on the other side is guided onto the transfer roll surface by the forming fabric downstream of the nip and is transferred onto the pick-up felt. The transfer roll has a vacuum zone located downstream of where it is wrapped by the forming fabric. The application of pressure on the web over the couch roll prior to, and in conjunction with, the nip operates to further dewater the web as well as to facilitate its transfer to the pick-up felt.

    WEB STABILIZING DEVICE
    10.
    发明专利
    WEB STABILIZING DEVICE 未知

    公开(公告)号：CA2245453C

    公开(公告)日：2003-02-11

    申请号：CA2245453

    申请日：1998-08-24

    Applicant: BELOIT TECHNOLOGIES INC

    Inventor： BROWN DALE A ,  SMITH DAVID A ,  PAGE ROBERT E ,  KRAMER GERALD J

    IPC: D21F1/52 ,  D21F5/00 ,  D21F7/00 ,  D21G3/00 ,  D21G9/00 ,  D21F5/02 ,  B31F1/12

    Abstract: A web support foil positioned adjacent to a Yankee dryer above a creping doctor. The foil supports the web as it leaves the dryer. Mounted to the top of the foil is an adjustable air deflector which is positioned tangent to the Yankee dryer. The air deflector blocks air moving along the web. A slotted opening draws air from a leading-edge pocket collecting fibers which are broken loose during the creping action. The web is held against the bottom side of the foil by one or more air jets which are directed over the bottom surface on the foil. The jets of air function as coanda air jets and prevent the web from sticking to the bottom surface of the foil while creating a Bernoulli effect which holds the web against the bottom of the foil.

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