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Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971)
[ACTIVE]

Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
It has been well recognized for years that lubrication of processed motion-picture film is extremely important for projection performance. The advent of sprocketless projectors in the amateur movie market has greatly intensified this need. Nevertheless, experience has shown that some processed films are not effectively lubricated. Therefore, there is a need for a simple and reliable test for lubrication and an instrument has been devised to fill this need. It is basically an inclined plane friction test in which a special slider takes the place of the usual sled. The rounded end of the paper clip, bearing on the test film, furnishes the only support for the slider. The paper clip is balanced in a vertical position, since the entire slider's center of gravity is well below the bearing point. In this study, the paper clip friction and projector performance of two different super-8 films are evaluated at several levels of lubrication.
Publication Date
1971-09-01
DOI
10.5594/J05751
Link
https://doi.org/10.5594/J05751
Author(s)
T. Anvelt, J. F. Carroll, L. J. Sugden
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J05751.json

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T. Anvelt, J. F. Carroll, and L. J. Sugden; Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05751
Snippet:
T. Anvelt, J. F. Carroll, and L. J. Sugden; Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05751

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T. Anvelt, J. F. Carroll, and L. J. Sugden; Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05751
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<span class="citation">T. Anvelt, J. F. Carroll, and L. J. Sugden; <cite>Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life</cite>, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J05751" target="_blank" rel="noopener">https://doi.org/10.5594/J05751</a></span>

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T. Anvelt, J. F. Carroll, and L. J. Sugden; Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971
doi: 10.5594/J05751
url: https://doi.org/10.5594/J05751
Snippet:
<li>
T. Anvelt, J. F. Carroll, and L. J. Sugden; <cite id="bib-10-5594-j05751">Processed Film Lubrication: Measurement by Paper Clip Friction Test and Improvement of Projection Life</cite>, Journal of the SMPTE ( Volume: 80, Issue: 9, September 1971); SMPTE, 1971
<span class="doi">10.5594/J05751</span>
</li>