Microfiche recording system with traveling film head
US4344701A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1981 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Jan 23, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/47
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A controllable film holding and tensioning system for a movable intermediate film strip dispensing head provides a stable and non-film damaging positioning of intermediate images carried on the film strip as it is moved from an exposure station to a final station for image transfer to an archival microfiche film under conditions where bowing stresses are applied to the intermediate film at one or more of the processing stations. An improved pretensioning feature for the source reel minimizes the occasional jamming encountered with conventional cassette film dispensers. Automatic protection is provided by an intermediate film strip break sensor and an end-of-film sensor to guard against archival record loss from these causes. Unique film cassette designs are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.