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194 条记录 (耗时 0.011 秒)

    Apparatus for controlling glass fractures
    81.
    发明授权
    Apparatus for controlling glass fractures 失效
    用于控制玻璃碎片的装置

    公开(公告)号：US3694181A

    公开(公告)日：1972-09-26

    申请号：US3694181D

    申请日：1971-06-01

    申请人： PPG INDUSTRIES INC

    发明人： DEAR TERRENCE A

    IPC分类号： C03B13/18 ,  C03B15/02 ,  G01N25/72 ,  C03B29/00

    CPC分类号： C03B13/18 ,  C03B15/02 ,  G01N25/72

    摘要： This invention relates to apparatus for arresting a developing fracture in a ribbon of glass by the application of heat of about 950 degrees F. to the area of the fracture and inducing temporary thermal stresses which place the glass in compression, thus arresting and eventually controlling the fracture. The apparatus comprises a crack-sensing device, a control means and a high-intensity heat source which are mounted so as to scan continuously the moving ribbon, and with the heat source being activated in response to the presence of a developing crack. Circuits may be used to move the heat source across the width od the glass ribbon to direct the fracture toward an edge of the ribbon.

    Method and apparatus for making glass windshields
    82.
    发明授权
    Method and apparatus for making glass windshields 失效
    制造玻璃窗的方法和装置

    公开(公告)号：US3639112A

    公开(公告)日：1972-02-01

    申请号：US3639112D

    申请日：1970-01-16

    申请人： PPG INDUSTRIES INC

    发明人： POOLA JAGADEESAN V

    IPC分类号： C03B15/02 ,  C03B33/037 ,  C03B33/02 ,  G01B11/30

    CPC分类号： C03B33/037 ,  C03B15/02 ,  Y10T83/0341 ,  Y10T83/0605

    摘要： Windshields are made from vertically drawn glass in accordance with a method that involves scanning substantially the entire width of the glass with a distortion-analyzer apparatus that produces a trace or other record proportional to the second derivative with respect to distance traversed of the thickness of the glass, and then cutting from the glass so scanned at least one piece of windshield blank, with the windshield blank being taken from a portion of the piece wherein said derivative is at a minimal value.

    摘要翻译： 挡风玻璃由垂直拉伸的玻璃制成，该方法涉及使用失真分析装置大致扫描玻璃的整个宽度的方法，所述失真分析装置产生与二次导数成比例的痕迹或其他记录， 玻璃，然后从玻璃切割，从而扫描至少一块挡风玻璃坯料，其中挡风玻璃坯料取自该件的一部分，其中所述衍生物处于最小值。

    Method and apparatus for drawing sheet glass
    83.
    发明授权
    Method and apparatus for drawing sheet glass 失效
    用于绘制板玻璃的方法和装置

    公开(公告)号：US3607183A

    公开(公告)日：1971-09-21

    申请号：US3607183D

    申请日：1966-04-06

    申请人： SAINT GOBAIN

    发明人： FLORI JEAN FRANCOIS

    IPC分类号： C03B15/02

    CPC分类号： C03B15/02

    摘要： Method and apparatus for drawing sheet glass, wherein the temperature of the incipient sheet from the line of draw to the drawing rollers is controlled at and along the width of the sheet to effect uniformity of thickness of the sheet throughout its width. Control is effected by establishment of a plurality of series of individual compartments in contiguous side-by-side relation and extending along lines which are generally parallel with the sheet and extend transversely of its length direction, closely adjacent the line of draw. Each series of compartments is allochirally positioned on a respective side of the sheet or line of draw; and each compartment is individually supplied with coolant at an individually controlled rate. By such individual control of the rate of flow of coolant it is assured that the temperature of each section of the sheet, consisting of an increment of length thereof, extending transversely from one side edge of the sheet to the other, is uniform and the temperature differences between one such increment and the next adjacent one are maintained at proper predetermined values. Control of rate of circulation of coolant through the several compartments may be automatic.

    Method and apparatus for controlling heat flow from a drawn sheet of glass
    84.
    发明授权
    Method and apparatus for controlling heat flow from a drawn sheet of glass 失效
    用于控制玻璃片的热流的方法和装置

    公开(公告)号：US3583860A

    公开(公告)日：1971-06-08

    申请号：US3583860D

    申请日：1968-12-23

    申请人： LIBBEY OWENS FORD CO

    发明人： MCCOWN WILLIAM E ,  ALLEN CAREY M ,  CALLIES GERALD A ,  HEIMRICH EUGENE H

    IPC分类号： C03B15/04 ,  C03B15/02

    CPC分类号： C03B15/04 ,  Y02P40/57

    摘要： CONTROLLING THE TEMPERATURE OF A SHEET OF GLASS BEING DRAWN UPWARDLY FROM A BATH OF MOLTEN GLASS AND DEFLECTED INTO A SUBSTANTIALLY HORIZONTAL PLANE ABOUT A BENDING MEMBER WHILE SEPARATED THEREFROM BY A FLUID FILM. HEAT REMOVAL FROM THE VERTICALLY RISING SHEET AND AIR CURRENTS WITHIN THE DRAWING CHAMBER ARE REGULATED SO THAT A RIBBON OF UNIFORM THICKNESS IS FORMED AND AS THE RIBBON IS DEFLECTED ABOUT THE BENDING MEMBER ITS TEMPERATURE IS UNIFORM FROM SIDE TO SIDE AND IT IS SUFFICIENTLY PLIABLE TO FOLLOW THE COUTOUR OF THE BENDING MEMBER WITHOUT DRAGGING OVER CERTAIN AREAS THEREOF.