Photocopying – Projection printing and copying cameras – Plural
Patent
1982-07-19
1984-07-10
McCamish, Marion
Photocopying
Projection printing and copying cameras
Plural
354 81, 354110, 355 64, G03B 1753, G03B 2762
Patent
active
044590156
ABSTRACT:
The apparatus for obtaining the microfilm photographic transparency comprises a table supporting a frame in which is disposed a rendition of the general data common to all the members of the group. A slide carrying data specific to a member of the group is displaceable from a position wherein it masks the general data to a position where it unmasks the general data. A first microfilm camera, aligned with the general data frame, is triggered when the slide reaches each end of its stroke, such that the camera takes consecutive exposures of the general data and of the specific data. A second microfilm camera aligned with the slide at the end of its stroke unmasking the general data is triggered when the slide is aligned with its optical axis. Two consecutive microfilm frames exposed by the first camera, after processing, are used to form the card, and the roll of film exposed by the second camera, after processing, forms a specific information data bank for storage purposes. The slide carries a form on which is typewritten or printed a portion of the specific data. The form has appropriate locations for punchable holes unmasking photosensors disposed in the slide for activating illuminated panels providing appropriate specific information data of a legible nature, while the typewritten or printed data on the form is normally non-legible, except under magnification, when reduced to microfilm size.
Alternatively, the form bears first information on a side and second information on a reverse side. The reverse side of the form, placed on a slide having a transparent bottom, is photographed by the second camera disposed below the slide.
REFERENCES:
patent: 2529905 (1950-11-01), Berssenbrugge
patent: 2548213 (1951-04-01), Gittins
patent: 3289530 (1966-12-01), Samain
patent: 3620145 (1971-11-01), Clark
patent: 3709597 (1973-01-01), La Rocca
patent: 4252427 (1981-02-01), Brecht et al.
patent: 4259391 (1981-03-01), Brecht
McCamish Marion
Swisher Nancy A. B.
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