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1. 发明授权

US3733704A Method and apparatus for determining contours of objects, especially of glass 失效
标题翻译：用于确定物体表面的方法和装置，特别是玻璃
公开(公告)号：US3733704A
公开(公告)日：1973-05-22
申请号：US3733704D
申请日：1970-07-23
申请人： PPG INDUSTRIES INC
发明人： FARABAUGH A
IPC分类号： G01B7/287 , G01B3/38
CPC分类号： G01B7/287
摘要： Contours of objects are determined by using equipment comprising a frame, generally conforming to a predetermined contour, a plurality of infinite-resolution linear potentiometers (preferably cermet) connected to the frame, a histogram-type visual-display device, a plurality of trimming potentiometers operatively associated such that there is one for each of said linear potentiometers and the outputs of the trimming potentiometers are connected to the visual-display device, and preferably also a checking tool. Desirably but not necessarily, there are also provided a strip-chart recorder, and a multiplexscan and filter circuit leading from the inputs to the visualdisplay device and to the strip-chart recorder, whereby there may be produced a series of traces indicative of the contour of the piece tested. The equipment disclosed will check contours of pieces shaped from flat glass, such as backlights, to an accuracy of about 0.001 inch at high production rates (above five pieces per minute), yet the equipment is simple, does not require calibration against a perfect master, is readily set up, and is readily adapted for use with a different frame to permit inspection of lights of glass of different size and/or shape.
摘要翻译：物体的轮廓通过使用包括通常符合预定轮廓的框架的设备，连接到框架的多个无限分辨率线性电位器（优选金属陶瓷），直方图型视觉显示装置，多个微调电位器可操作地相关联，使得对于每个所述线性电位计有一个，并且修整电位计的输出连接到视觉显示装置，并且优选地也连接到检查工具。期望但不一定，还提供了一个条形图记录器，以及从输入到视觉显示装置和条形图记录器的复用扫描和滤波器电路，由此可能产生一系列迹线表示测试件的轮廓。所公开的设备将检查从平板玻璃（如背光源）成型的片材的轮廓，以高生产率（每分钟5件以上）的精度约为0.001英寸，但设备简单，不需要校准完美的主机容易地设置，并且容易地适用于与不同的框架一起使用以允许检查不同尺寸和/或形状的玻璃的灯。

2. 发明授权

US3764285A Manufacture of float glass having controlled width 失效
标题翻译：具有控制宽度的浮法玻璃的制造
公开(公告)号：US3764285A
公开(公告)日：1973-10-09
申请号：US3764285D
申请日：1972-06-09
申请人： PPG INDUSTRIES INC
发明人： MATESA J , FARABAUGH A
IPC分类号： C03B18/02 , C03B18/04 , G01B11/04 , G01D5/34 , G05D3/12 , G05D5/06
CPC分类号： G01B11/046 , C03B18/04 , G01D5/341 , G05D5/06
摘要： In the manufacture of float glass, the width of the glass formed in controlled by detaching the width of the ribbon after it is substantially cooled and attenuated, and employing the error of the detected width from the target width to control the target width of the ribbon at a point upstream in the process where the ribbon is hot and acting as a viscous liquid, by detecting the width of the ribbon at the upstream point and employing the error that detected width from its target width to control the target position of a tweel or gate controlling the flow of molten glass in the float bath and controlling the tweel to ultimately control final ribbon width in a stable manner.

3. 发明授权

US3794477A Glass sheet float apparatus with heat flux edge detector 失效
标题翻译：玻璃板FLOAT装置与热通量边缘检测器
公开(公告)号：US3794477A
公开(公告)日：1974-02-26
申请号：US3794477D
申请日：1972-06-09
申请人： PPG INDUSTRIES INC
发明人： FARABAUGH A , GULOTTA J
IPC分类号： C03B18/02 , C03B18/04 , G01B11/04 , G01D5/34 , G05D3/12 , G05D5/06
CPC分类号： G01B11/046 , C03B18/04 , G01D5/341 , G05D5/06
摘要： An apparatus for detecting the position of the edge of a body of hot glass floating on a pool of molten metal combines an elongated heat flux detector in a cooled enclosure and provides an output signal that is proportional to the amount of hot glass facing the detector. The device imposes no external forces upon the glass, does not contact the glass and may be held in a fixed position while providing a continuous signal despite glass movement.

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