Method and apparatus for recording information from a slidable sheet of a rim cassette
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United States of America Patent
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-
Jul 12, 1994
Grant Date -
N/A
app pub date -
Dec 29, 1992
filing date -
Jul 30, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for recording the information from the slidable sheet (5) of a RIM cassette (2). The information included on the sheet, used especially in X-ray photography, is read from the sheet surface drawn out of the cassette with the aid of a laser beam focused on it, after which the sheet is emptied of information with the aid of a powerful light and returned to the cassette. According to the invention, the reading is effected during the linear withdrawal of the slidable sheet (5) in the reading position (9) past which the sheet surface including the information is guided, and the removal of the information is effected during the linear return travel of the slidable sheet in the emptying position (10) past which the sheet surface travels while the sheet is being pushed back into the cassette (2). The movement of the slidable sheet (5) can be effected by a pulling device which consists of a slide (8) travelling on a rotatable shaft (7) and the movement of the slide is effected with the aid of ball bearings mounted against the shaft at a pitch angle. The reciprocating path of the slide (8) is preferably adjusted so that the slidable sheet (5) comes only partially out of the cassette (2) which thus continuously acts as a guide for the sheet.
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