A Wringer-Sling Squeegee for Motion-Picture Film Processing Machines

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: As the speed of processing machines is increased, the problem of carry-over of solution from stage to stage becomes more severe. Air blow-backs or squeegees can be used to reduce the carry-over but they have several disadvantages: continuing cost of air, noise, danger of scratching film, and contamination from airborne chemicals blown off the film. A wringer-sling squeegee, operated by movement of the film itself, eliminates some of the problems of air squeegees and offers advantages for many applications. In operation, the film passes between two rollers. One flangeless roller wrings liquid from the surface of the film and displaces it to the large flanges of the other roller, which slings it away by centrifugal force. The sling roller has a small-diameter hub so that it rotates at relatively high speed. Collection cups enclose the flanges of the sling roller. The efficiency of the device increases with film-transport speed.
Publication Date: 1967-08-01
DOI: 10.5594/J09124
Link: https://doi.org/10.5594/J09124
Author(s): Edward H. Deane, Richard L. Mcneary

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Edward H. Deane and Richard L. Mcneary; A Wringer-Sling Squeegee for Motion-Picture Film Processing Machines, Journal of the SMPTE ( Volume: 76, Issue: 8, August 1967); SMPTE, 1967. Available at https://doi.org/10.5594/J09124

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Edward H. Deane and Richard L. Mcneary; A Wringer-Sling Squeegee for Motion-Picture Film Processing Machines, Journal of the SMPTE ( Volume: 76, Issue: 8, August 1967); SMPTE, 1967. Available at https://doi.org/10.5594/J09124

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<span class="citation">Edward H. Deane and Richard L. Mcneary; <cite>A Wringer-Sling Squeegee for Motion-Picture Film Processing Machines</cite>, Journal of the SMPTE ( Volume: 76, Issue: 8, August 1967); SMPTE, 1967. Available at <a href="https://doi.org/10.5594/J09124" target="_blank" rel="noopener">https://doi.org/10.5594/J09124</a></span>

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<li>
Edward H. Deane and Richard L. Mcneary; <cite id="bib-10-5594-j09124">A Wringer-Sling Squeegee for Motion-Picture Film Processing Machines</cite>, Journal of the SMPTE ( Volume: 76, Issue: 8, August 1967); SMPTE, 1967
<span class="doi">10.5594/J09124</span>
</li>