G - Physics – 03 – B
Patent
G - Physics
03
B
271/36, 271/38
G03B 1/00 (2006.01) G06K 13/26 (2006.01)
Patent
CA 1083189
ABSTRACT OF THE DISCLOSURE The present invention relates to the field of closed loop film or tape information, storage and retrieval systems and in particular to a film transport system for transporting a closed loop of film about a defined pathway. A relatively large number of turns or strata of film strip layers typically overlie one another in a sub-pathway along the film pathway. The individual film layers in the sub-pathway are continu- ously being translated, and the translation rate of each film layer is slightly different from that of adjacent such film layers. There is a definite tendency for adjacent film layers to seize and bind against one another resulting in an equipment operational failure. Previous efforts to alleviate this problem have involved hand manipulation of film layers to keep same in a "free" condition which is considered an undesirable solution because of safety considerations and because of the need to minimize continuous operator attention during machine operation. The present invention provides a transport system including means for automatically and continu- ously oscillating the film strip segments in a convo- lutely would sub-pathway used for storing multiple film strip segments of the film's closed loop so as to prevent film seizing from occurring during transport system operation even when very large film lengths are employed relative to the size of the sub-pathway.
307667
Bunker Ramo Corporation
Fetherstonhaugh & Co.
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