Manual retrieving mechanism for microfiche reader apparatus or t

Details Manual retrieving mechanism for microfiche reader apparatus or t Manual retrieving mechanism for microfiche reader apparatus or t

1978-09-19

1980-03-04

Haroian, Harry N.

Optics: image projectors

Selective data retrieval

Plural picture rows on single microcard

G03B 2308

Patent

active

041914554

ABSTRACT:
A microfiche reader includes an automatic motor driven retriever mechanism and a manual retriever mechanism. The manual retriever includes a guide having a transverse slot, a lever handle having a longitudinal slot and a pivot member slideable along the slots and supporting the lever for swinging between retracted and extended positions. A film carrier carriage is moveable along orthogonally related directions and is releasably couplable to the lever when the carriage is in a retracted rest position, the lever being locked to the carriage when the carriage is displaced from its rest position. The lever is locked in an inoperative condition when retracted and with the carriage displaced from rest position. A mechanism is provided for uncoupling the motors from the carriage or the carriages are coupled to the motors by slip transmissions or a switch is provided for deenergizing the automatic retriever mechanisms when the manual lever is in an operative position.

REFERENCES:
patent: 2501453 (1950-03-01), Rowe et al.
patent: 2701979 (1955-02-01), Pratt et al.
patent: 3856397 (1974-12-01), Suzuki et al.
patent: 4033684 (1977-07-01), Toriumi et al.

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