Microfilm reader/printer with normally open and removable...

Details Microfilm reader/printer with normally open and removable... Microfilm reader/printer with normally open and removable...

G - Physics

03

B

88/72

G03B 21/00 (2006.01) G03B 21/11 (2006.01)

Patent

CA 1117332

MICROFILM READER/PRINTER WITH NORMALLY OPEN AND REMOVABLE GLASS FLATS Abstract of Disclosure A pair of glass flats are mounted in a removable carrier frame assembly, which is adapted to be inserted into a microfilm reader/printer. Supports on the carrier frame may be rested upon a front panel of a reader/printer in order to facilitate an alignment and an insertion of the carrier. A solenoid controlled mechanical linkage normally holds the glass flats in an open position except when the film is actually being protected. Then, they close. Signals are sent back to indicate to the reader/printer whether the flats are opened or closed and to control it in response thereto.

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