Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard
Patent
1982-04-19
1983-08-23
Marcus, Stephen
Optics: image projectors
Selective data retrieval
Plural picture rows on single microcard
353 23, 33 1M, 355 54, G03B 2308
Patent
active
044000685
ABSTRACT:
The microfiche carrier slides laterally on front and rear ball bearings between the carrier and subcarrier. The front bearing permits vertical separation of the carrier from the subcarrier and the rear ball bearing then permits the race member carried by the carrier to be withdrawn from between the upper and lower sets of ball bearings. In use the carrier is latched to the subcarrier by a latch carried by the transparent index pressure plate. The subcarrier is mounted on the base by ball bearings. The base contains the electrical components and the light source and condenser lens. The base can be withdrawn from the housing as a unit with the carrier attached.
REFERENCES:
patent: 2299677 (1942-10-01), Bickel
patent: 2564658 (1951-08-01), Jakeway
patent: 3186772 (1965-06-01), Cohn
patent: 3790266 (1974-02-01), Ueda et al.
patent: 4245898 (1981-01-01), Hall
patent: 4262974 (1981-04-01), Tojo et al.
Marcus Stephen
Michael Bayard H.
Realist, Inc.
Sharp William R.
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