Phased Roller Movement

Walter Renold

doi:10.1117/12.955138

18 January 1977 Phased Roller Movement

Walter Renold

Proceedings Volume 0094, High Speed Optical Techniques: Developments and Applications; (1977) https://doi.org/10.1117/12.955138
Event: 20th Annual Technical Symposium, 1976, San Diego, United States

Abstract

This concept offers an entirely new approach to High Speed Photography as described in U. S. Patent No. 3,613,978. Phased eccentric rollers move the film intermittently, and continuously control captive loops unyieldingly; no spring loaded rollers with limited frequency response are used. Registration pins lock the film during exposure. Thus pull down claws, free loops, and associated instability problems at high speed operation are eliminated. Smaller roller eccentricity -- only 1/16 of pulldown dimension -- permits easy balancing, low eccentric bearing loads and mechanism strain. Unusual geometric relations permit easy adjustment for film pitch variations.

Citation Download Citation

Walter Renold "Phased Roller Movement", Proc. SPIE 0094, High Speed Optical Techniques: Developments and Applications, (18 January 1977); https://doi.org/10.1117/12.955138

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