An Improved Film-Drive Filter Mechanism
The basic problem of providing constant speed past the scanning point in film machines is briefly reviewed. Two associated types of relatively simple film-drive filters are described. Both are based on the use of controlled compliance which promotes greater freedom from film and mechanical conditions. A new film sprocket is described which reduces the number of sprockets required per machine.
- Print ISSN
- 0097-5834
- Published
- 1946-06
- Content type
- Original Research
- DOI
- 10.5594/J12210
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