Photocopying – Projection printing and copying cameras – With focusing or projection screen
Patent
1980-04-23
1982-10-12
Shepperd, John W.
Photocopying
Projection printing and copying cameras
With focusing or projection screen
353 25, 414263, G03B 2100
Patent
active
043536425
ABSTRACT:
A microfilm cartridge storage, retrieval, and projection system is disclosed. The system includes a vertically-oriented cylindrical cartridge storage drum which has a plurality of overlying tiers, each tier including successive side-by-side compartments which are oriented along radials of the cylinder and are adapted to hold a microfilm cartridge. Cartridge receiving and projection head means are mounted proximate the compartments of the drum, and are adapted for receiving a cartridge from a compartment in operative opposition thereto and for optically projecting a selected film frame of the cartridge. Cartridge displacement means mounted proximate the compartments of the drum, are adapted for displacing a cartridge in operative opposition thereto, which is then engaged by the receiving and projection head means. Orienting means are provided to enable relative vertical displacement between the drum, and each of the cartridge receiving and projection head means and the cartridge displacement means. The orienting means also provide angular displacement of the drum about its axis relative to each of the foregoing means to thereby bring each such means in operative opposition to a compartment containing a selected cartridge. Control means responsive to computer or operator selection of a cartridge and film frame actuate the orienting means, and thereupon the cartridge displacement means and the cartridge receiving and projection means.
REFERENCES:
patent: 3732546 (1973-05-01), Ronkin et al.
patent: 3800942 (1974-04-01), Hirata et al.
patent: 3868476 (1975-02-01), Laplume
patent: 3885866 (1975-05-01), Stearns
patent: 4025176 (1977-05-01), Lopata
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