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    Packaging apparatus
    61.
    发明授权
    Packaging apparatus 失效
    包装设备

    公开(公告)号：US3713526A

    公开(公告)日：1973-01-30

    申请号：US3713526D

    申请日：1971-02-01

    Applicant: INT PAPER CANADA

    Inventor： HOFFMANN W ,  WICK P

    IPC: B65B5/08 ,  B65B35/44 ,  B65G47/26

    CPC classification number: B65B35/44 ,  B65B5/08 ,  Y10S414/103

    Abstract: A commodity feeding apparatus for aligning and selectively feeding a commodity into a packaging station, the feeding apparatus having two advancing systems, one advancing faster than the other and moving selected of the commodities at a faster rate to separate the selected commodities from the remainder thereof and advance same into the packaging station.

    Bleaching of mechanical pulps with hydrosulfite in the presence of an alkali metal silikate
    62.
    发明授权
    Bleaching of mechanical pulps with hydrosulfite in the presence of an alkali metal silikate 失效
    在ALKALI金属硅酸盐存在下，具有氢化石墨的机械粉末的漂白

    公开(公告)号：US3709779A

    公开(公告)日：1973-01-09

    申请号：US3709779D

    申请日：1971-11-17

    Applicant: INT PAPER CANADA

    Inventor： GUPTA V

    IPC: D21C9/10

    CPC classification number: D21C9/1036

    Abstract: A PROCESS IS DESCRIBED IN WHICH MECHANICAL PULPS ARE BLEACHED WITH SODIUM OR ZINC HYDROSULFITE IN THE PRESENCE OF SODIUM SILICATE. THE ADDITION OF SILICATE INCREASES THE BRIGHTNESS GAIN OBTAINED BY HYDROSULFITE ALONE AND REDUCES THE GRINDING POWDER CONSUMPTION. SILICATE CAN THUS REPLACE SODIUM TRIPOLYPHOSPHATE FOR THIS USE AND THEREBY ELIMINATE PHOSPHATE POLLUTION DUE TO NEWSPRINT OR OTHER PAPER MILL EFFLUENTS.

    Water absorption test method
    63.
    发明授权
    Water absorption test method 失效
    吸水试验方法

    公开(公告)号：US3640125A

    公开(公告)日：1972-02-08

    申请号：US3640125D

    申请日：1969-11-17

    Applicant: INT PAPER CANADA

    Inventor： GIRARD CHRISTIAN F ,  DEROUIN GERALD J

    IPC: G01N5/02 ,  G01N33/34

    CPC classification number: G01N5/02

    Abstract: Method for testing the water absorption characteristics of building board materials, for example, Masonite, in which the rough side of the board is submerged in water and the smooth side subjected to a predetermined vacuum for a predetermined interval of time. The time and vacuum parameters of the method are calculated to achieve as closely as possible the same water absorption and thickness results as are obtained with the standard 24-hour test method.

    Abstract translation: 用于测试建筑板材料的吸水特性的方法，例如Masonite，其中板的粗糙面浸没在水中，并且光滑面经受预定的真空预定的时间间隔。 计算方法的时间和真空参数，以尽可能接近实现与标准24小时测试方法相同的吸水率和厚度结果。

    Controlled alkaline sulfite pulping
    64.
    发明授权
    Controlled alkaline sulfite pulping 失效
    控制碱性硫酸盐喷涂

    公开(公告)号：US3630832A

    公开(公告)日：1971-12-28

    申请号：US3630832D

    申请日：1969-11-10

    Applicant: INT PAPER CANADA

    Inventor： INGRUBER OTTO V ,  ALLARD GLENN A

    IPC: D21C3/06 ,  D21C7/14

    CPC classification number: D21C3/06

    Abstract: A controlled process of producing sulfite pulps from wood and other cellulosic material wherein the use of sodium sulfide is avoided and the process pH, i.e., the pH in situ or the so-called hot pH, is measured during the pulping or cooking operation and the alkalinity of the cooking medium is adjusted in response to such measurement in a predetermined manner.

    Tree processing apparatus with feed rolls
    65.
    发明授权
    Tree processing apparatus with feed rolls 失效
    树木加工设备

    公开(公告)号：US3580308A

    公开(公告)日：1971-05-25

    申请号：US3580308D

    申请日：1967-05-18

    Applicant: INT PAPER CANADA ,  QUEBEC NORTH SHORE PAPER ,  ST ANN ABITIBI PAPER LTD ,  DOUGLAS D HAMILTON

    Inventor： HAMILTON DOUGLAS D

    IPC: B27C1/12 ,  B27L1/04 ,  B27C9/00 ,  B27L1/00 ,  B27L11/00

    CPC classification number: B27C1/12 ,  B27L1/045

    Abstract: A device for propelling trees or the like along a selected path through one or more processing units, such device consisting of three or more driven rollers mounted on the free ends of respective ones of a plurality of pivotally mounted arms having the free ends movable toward and away from said path to respectively bring the rollers into and out of engagement with a tree located in the path. The rollers are disposed in a generally triangular arrangement and each roller has an outer peripheral surface for tractive engagement with the tree, such tractive surface consisting of an undulated surface provided by a series of cleats extending preferably in a direction perpendicular to the feed path. The cleats permit a tree to shift laterally with respect to the feed path. The cleats permit a tree to shift laterally with respect to the feed path while being fed through the processing units thereby facilitating maintaining the tree in alignment with the feed path.

    Apparatus for selectively receiving and aligning packages
    66.
    发明授权
    Apparatus for selectively receiving and aligning packages 失效
    用于选择接收和对齐包装的设备

    公开(公告)号：US3575278A

    公开(公告)日：1971-04-20

    申请号：US3575278D

    申请日：1968-04-19

    Applicant: INT PAPER CANADA

    Inventor： HOFFMANN WOLFGANG ,  PURKHARDT CESAR EDUARD

    IPC: B65B35/24 ,  B65G47/26 ,  B65G19/26

    CPC classification number: B65B35/243

    Abstract: An apparatus and method of selectively feeding and presenting individual packages, processed by a previous packaging operation in alignment for a subsequent wrapping operation. The apparatus includes two different control systems where one or more packages are taken under control of the first control system and presented to a second control system which feeds the packages to the subsequent wrapping operation. The two control systems are driven at different speeds so that a uniform feeding of the aligned packages is presented to the wrapping operation.

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