| 摘要 |
An operator's console for such apparatus as random access filing equipment includes a readily interchangeable, back-lighted view panel marked off into individually illuminable signal selection areas. The panel is imperforate but flexible. In back of it is a bank of light-transmitting bars, one behind each area. Any one of the bars is depressible by finger pressure exerted against the corresponding, overlying area, to cause the bar to operate a switch that illuminates an associated lamp the light from which is transmitted through the bar to visibly indicate the selected area. The switches also actuate signal generating devices, so that when certain areas have been selected and illuminated as a visible indication of their selection, the signals corresponding thereto will be transmitted to the associated apparatus. If for example said apparatus is random access filing equipment, the transmitted signals may be operable to produce a coded, randomly filed card or cards corresponding to the selection made by the user.
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