Internally Directed Air to Improve Contact and Negative Life in Continuous Motion-Picture Printers
Methods of using air pressure to improve film-to-film contact in continuous motion-picture printers are reviewed and compared to ordinary mechanical pressure methods. Advantages of internally directed air are cited and are supported by numerical test data to show unproved definition due to better contact and greatly extended negative life. Modifications to equip two production model printers (Bell & Howell Models J and D) with internal air jets are described.
- Print ISSN
- 0361-4573
- Published
- 1957-03
- Content type
- Original Research
- DOI
- 10.5594/J17527
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