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    Process for producing vanillin
    41.
    发明授权
    Process for producing vanillin 失效
    生产VANILLIN的方法

    公开(公告)号：US3920750A

    公开(公告)日：1975-11-18

    申请号：US45351674

    申请日：1974-03-21

    Applicant: INT PAPER CANADA

    Inventor： KATZEN RAPHAEL ,  DIEBOLD VINCENT B ,  MESTEMAKER JERALD L

    IPC: B01D3/22 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  C07C45/00

    CPC classification number: C07C45/32 ,  B01D3/22 ,  B01J19/006 ,  B01J19/242 ,  B01J2219/00058 ,  B01J2219/00065 ,  B01J2219/00186 ,  B01J2219/00768 ,  C07C45/78 ,  C07C47/58

    Abstract: A process is provided for conducting liquid-gas reactions, especially the oxidation reaction involved in air oxidation of lignin-containing, alkaline, kraft black liquor. The process employs an oxidation apparatus comprising a vertically oriented container having inlet means in proximity to its bottom for both gas and liquid and outlet means in proximity to the top of the container. Disposed in staggered arrangement within said vertical container is a plurality of internal horizontal perforated plates extending over most of, but not all of, the cross section of the container and extending vertically downward from said horizontal perforated plates, an internal vertical solid baffle plate. In the operation of the process, gas and liquid are passed generally cocurrently upwardly through the container with the gas being collected under and passing vertically through the horizontal perforated plates of the oxidation apparatus. By virtue of the arrangement of the plates, the liquid flows horizontally under the horizontal perforated plates, thereby providing optimum dispersion of vertically flowing gas within the horizontally flowing liquid and thereby optimum contact of gas and liquid.

    Delimber cutters, delimber and tree processing feed means
    42.
    发明授权
    Delimber cutters, delimber and tree processing feed means 失效
    DELIMBER CUTTERS，DELIMBER和TREE加工进料装置

    公开(公告)号：US3596690A

    公开(公告)日：1971-08-03

    申请号：US3596690D

    申请日：1969-07-11

    Applicant: INT PAPER CANADA ,  QUEBEC NORTH SHORE PAPER ,  DOUGLAS D HAMILTON ,  ABITIBI PAPER CO LTD ,  JOSEPH J R BOIVIN

    Inventor： HAMILTON DOUGLAS D ,  BOIVIN JOSEPH J R

    IPC: A01G23/097 ,  A01G23/02

    CPC classification number: A01G23/097

    Abstract: A delimber arm for use in delimbing trees and which may be mounted on a frame, the arm being segmented and with the segments resiliently urged into position with respect to one another whereby the arm or several arms open and close like an iris to closely follow the trunk of a tree having relatively wide variations in diameter. A delimber further incorporating delimbing members of the foregoing type and means for feeding a tree or group of trees endwise through the delimber incorporating hydraulic systems for urging the feed rolls against the tree with a force proportional to the force required to propel the tree through the delimber. Further, a tree delimber incorporating a frame having a notch in the upper surface for supporting one or more trees and one or more cutting members pivotally mounted on the frame and arranged to move toward and away from the recess in the frame for removing limbs from trees moved relative thereto.

    Tree processing off-feed assembly
    43.
    发明授权
    Tree processing off-feed assembly 失效
    树种加工离线装配

    公开(公告)号：US3586078A

    公开(公告)日：1971-06-22

    申请号：US3586078D

    申请日：1969-06-13

    Applicant: INT PAPER CANADA ,  QUEBEC NORTH SHORE PAPER ,  ABITIBI PAPER CO LTD

    Inventor： HAMILTON DOUGLAS D ,  BENEDETTO DOMENICO

    IPC: A01G23/097 ,  A01G23/02

    CPC classification number: A01G23/097

    Abstract: A tree processing machine including an attachment therefor to collect and unload logs discharged from the processing units on the machine. The tree collecting and unloading is a tree-handling off-feed assembly detachably secured either to the undercarriage of the vehicle or to a platform pivotally mounted on the carriage for movement with the processing units or pivotally mounted on the undercarriage to slew about a vertical axis independent of slewing of the platform on which the processing units are mounted. The off-feed assembly includes a pair of arcuate collecting arms in one form pivotally secured to the frame of the off-feed assembly so as to enable movement of the same when struck by an object during movement of the mobile tree processing machine. The off-feed mechanism further includes an operator''s station consisting of a cab providing an enclosure for the operator and a boom and grapple assembly pivotally mounted thereon or adjacent thereto such that an operator in the cab has a commanding view of logs collected on the arcuate arms and with suitable controls is able to manipulate the boom and grapple assembly to remove the collected logs. The arms which are provided for collecting the trees may also be referred to as a cradle and there may be one located on each of opposite sides of the frame with a movable deflector selectively directing processed logs into one or the other whereby cradle is being loaded, the other may be unloaded without interfering with the processing operation.

    Ceiling tiles with reinforcing member
    44.
    发明授权
    Ceiling tiles with reinforcing member 失效
    带增强构件的天花板

    公开(公告)号：US3557513A

    公开(公告)日：1971-01-26

    申请号：US3557513D

    申请日：1969-02-14

    Applicant: INT PAPER CANADA

    Inventor： GIRARD CHRISTIAN F

    IPC: E04B9/04 ,  E04C2/18 ,  E04C2/02

    CPC classification number: E04B9/04

    Abstract: AN OVERSIZE CEILING TILE MADE FROM BOARD SUCH AS MINERAL BOARD IS PROVIDED WITH A REINFORCING SPINE MADE OF SHEET METAL OR LIKE MATERIAL TO PREVENT SAG, THE SPINE BEING DAPTED TO BE SECURELY ATTACHED TO THE TILE WITH PENE-

    TRATING FASTENERS OF EACH SIDE OF THE SPINE WHICH CRISS-CROSS WITHIN THE CORE OF THE TILE.

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