1983-04-07
1985-07-23
Corbin, John K.
40363, 40366, 350240, G02B 2702
Patent
active
045305706
ABSTRACT:
A device is adapted for viewing transparencies disposed circumferentially on a disk. It comprises a case (10) adapted to contain a disk (12). A pin (15) is adapted to mount the disk (12) for rotation within the case (10). The disk (12) may be driven in rotation by virtue of at least one peripheral opening (10F, 10G) in the case (10). A pair of windows (10C, 10D) are disposed in face to face relationship and so that the transparencies (13) can move between them. A front member (11B) on one side of the windows is adapted to support an optical system comprising at least one lens (15) in line with and spaced from the windows. A rear member (11C) is adapted to constitute a shank for clipping the device to an article of clothing. The device may be used and worn as a badge, since the front surface of the case (10) may carry any form of inscription or illustration.
REFERENCES:
patent: 2467014 (1949-04-01), Dilks
patent: 2572602 (1951-10-01), Dilks
patent: 4089593 (1978-05-01), Bernard
Corbin John K.
Propp William
Stereoscopes Lestrade & Cie., S.A.
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