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    Apparatus for the manufacture of contoured asbestos sheet
    2.
    发明授权
    Apparatus for the manufacture of contoured asbestos sheet 失效
    用于生产ASBESTOS板材的设备

    公开(公告)号：US3764252A

    公开(公告)日：1973-10-09

    申请号：US3764252D

    申请日：1971-08-09

    申请人： GAF CORP

    发明人： SCHULTE J

    IPC分类号： B28B11/08 ,  B29C17/00

    CPC分类号： B28B11/0827

    摘要： A corrugated asbestos cement forming machine including a flat horizontally-movable table having flexible resilient membrane sections as well as rigid portions is provided to accept a flat wet asbestos cement sheet. Such sheet is placed upon the entire table and as the edges of the separate flexible membrane sections are urged together in an accordian fashion, the membrane sags and thereafter gravity causes the wet asbestos cement sheet to assume the shape and contour developed by the sagging flexible membrane. Rigid support members beneath the flexible membrane sections assure the desired contour of the asbestos cement sheet.

    摘要翻译： 一种瓦楞石棉水泥成型机，其具有柔软的弹性膜部以及刚性部的平坦的水平移动台，以容纳平坦的湿式石棉粘结片。 这样的片材被放置在整个桌子上，并且当分开的柔性膜片部分的边缘以一致的方式被推到一起时，膜下垂，此后重力使湿石棉粘合片呈现由下垂柔性膜展开的形状和轮廓 。 柔性膜部分下面的刚性支撑构件确保了石棉粘结片所需的轮廓。

    Structural panels
    6.
    发明授权
    Structural panels 失效

    公开(公告)号：US4134243A

    公开(公告)日：1979-01-16

    申请号：US827665

    申请日：1977-08-25

    申请人： Donald J. Fries

    发明人： Donald J. Fries

    IPC分类号： B28B11/08 ,  B29C33/66 ,  B29C51/08 ,  E04C2/20 ,  E04C2/30 ,  E04C2/10 ,  B29C17/02 ,  B32B3/12

    CPC分类号： E04C2/30 ,  B28B11/0827 ,  B29C33/66 ,  B29C51/08 ,  E04C2/20 ,  Y10T428/24149

    摘要： An improved structural panel, apparatus for producing the panel and method for producing the panel are disclosed. The improved panel structure is essentially a three dimensional panel structure having two essential planar face surfaces with a plurality of tapered walled cells lying intermediate the two faces and supporting the faces of the panel structure. Each of the tapered walled cells opens outwardly from the face surfaces of the panel with approximately one-half of the cells opening outwardly on one face surface of the panel and the other half opening outwardly from the other face surface of the panel structure. The walls of the tapered walled cells form a rigid and strong support for the face surfaces of the panel structure. The cross-sectional areas of the tapered walled cells are essentially curvilinear and taper upwardly and outwardly from one face of the structure such that the cross-sectional area of the tapered walled cell is greater at a point removed from its apex than the cross-sectional area near its apex. A shoulder member is formed by the tapered walled structure by a decrease in the cross-sectional area of the tapered walled cell cross-section adjacent the face of the wall structure furthest removed from the apex. The tapered cells have common walls and produce a sealed structure from one face of the panel structure to the other. The disclosed method and apparatus for producing the improved panel structures include a unique mold apparatus wherein two mold halves are utilized. The two mold halves have deformable mold fingers whereby the material the panel structure is to be made from can be placed between the mold halves and the mold halves are closed. The deformable mold fingers are in a non-aligned orientation when the mold halves are closed. Upon closing of the mold halves, the mold fingers can be deformed to produce the tapered wall structures. The deformation of the mold fingers can be by pressure of the mold halves coming together with the material the panel is produced from sandwiched between or by internal pressure that is exerted on the interior of the mold fingers to thereby partially inflate such mold fingers. Following the formation of the structural panels having the tapered walled cell structure, the mold fingers are allowed to return to their undeformed state and are removed from the tapered wall cell structure. The disclosed method and apparatus are especially useful in the production of improved structural panels such as cement type panels that are reinforced with fibrous materials such as asbestos, fiberglass and the like.