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    • 8. 发明授权
    • Bench flotation sensor
    • 台式浮选传感器
    • US5321267A
    • 1994-06-14
    • US951510
    • 1992-09-25
    • Lynden A. SongKarl B. ConroyRobert A. Reed
    • Lynden A. SongKarl B. ConroyRobert A. Reed
    • G01D5/30G01M11/04G01J5/10G01B11/16
    • G01M11/04G01D5/30
    • A noncontact bench flotation sensor system for use with a flotation bench. The system comprises a plurality of reflectors that are disposed on the body of the bench, typically on the inside of the skirt or overhanging portion of the table surface of the bench. Each reflector is such that it reflects over a narrow region, or angle. Two sensor assemblies, preferably infrared, are disposed adjacent each reflector and are located on each leg of the bench. Each of the sensor assemblies is comprised of an transmitter and an detector. The two sensor assemblies are separated by a distance that corresponds to upper and lower limits of bench flotation. The sensor assemblies transmit infrared energy, for example, at the reflector. In the event that the isolator moves to a point where one of the transmitters is aligned with the reflector, energy is reflected back to the associated detector, and the reflected energy is detected. Output signals are generated by the sensor assemblies that are indicative of in flotation and out-of-flotation conditions of the bench. These signals are coupled to a display unit. The display unit incorporates a plurality of light emitting diodes (LEDs) that correspond to each of the possible flotation conditions, and an annunciator. In-flotation signals from the sensor assemblies are used to light selected LEDs, while out of flotation output signals from the sensor assemblies are used to light other LEDs and sound an alarm. This alerts an operator that the bench is out of flotation, permitting the operator to correct the problem.
    • 一种与浮选台一起使用的非接触台式浮选传感器系统。 该系统包括多个反射器,其设置在工作台的主体上,通常位于工作台的工作台表面的裙部或伸出部分的内侧。 每个反射器使得其在窄的区域或角度上反射。 两个传感器组件,优选红外线,被布置在每个反射器附近并且位于台架的每个腿上。 每个传感器组件由发射器和检测器组成。 两个传感器组件分隔一段对应于台架浮选的上限和下限的距离。 传感器组件例如在反射器处传送红外能量。 在隔离器移动到其中一个发射器与反射器对准的位置的情况下,能量被反射回相关联的检测器,并且检测反射的能量。 输出信号由传感器组件产生,其指示在台架的浮选和浮选条件下。 这些信号耦合到显示单元。 显示单元包括与可能的浮选条件中的每一个相对应的多个发光二极管(LED)和报警器。 来自传感器组件的浮选信号用于点亮所选择的LED,而来自传感器组件的浮选输出信号用于点亮其他LED并发出报警。 这样可以提醒操作员台架不能浮动,从而允许操作员纠正问题。
    • 10. 发明授权
    • Photographic mask structure
    • 摄影掩模结构
    • US4132480A
    • 1979-01-02
    • US812553
    • 1977-07-05
    • Robert A. Reed
    • Robert A. Reed
    • G03B27/58G03B27/62
    • G03B27/582
    • A photograhic cropping mask of a planar sheet, such as paper, plastic or cardboard, having defined therein a plurality of prescored, detachable rectilinear openings having a common center, indexing means and, optionally, an area of adhesive material and/or crop marks such that the sheet may be placed adjacent a transparent film to determine the cropping opening appropriate to the film image, the selected opening produced by detaching along an appropriate score line, the film attached by means of tape or the optional adhesive area to the sheet with the film properly aligned with the opening, and the film and sheet then accurately positioned in a photographic printing apparatus by the indexing means.
    • 平面片材(如纸张,塑料或纸板)的照相裁剪掩模,其中限定有多个预先分割的可拆卸的直线开口,其具有共同的中心,分度装置,以及任选的粘合剂材料和/或作物标记的区域 可以将片材放置在透明膜附近以确定适合于胶片图像的裁切开口,通过沿着适当的刻痕线分离产生的所选择的开口,通过胶带或可选的粘合剂区域附着到具有 胶片与开口正确对准,然后胶片和片材通过分度装置精确地定位在照相打印装置中。