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Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947)
[ACTIVE]

A Projection Reel of Improved Design

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
It is generally conceded that the present 5/16-in. diameter shaft and 1/8-in. drive key on present film reel handling equipment such as magazines, rewinds, etc., are inadequate to support and drive 2000-ft reels of 35-mm film. Much unnecessary film damage is caused by the reel wobble, backlash, and poor alignment caused by this situation. This paper describes an improved reel design featuring a 1-in. diameter splined hub shaft opening and an automatic ball and groove locking device to provide accurate lateral alignment and eliminate manually operated keys on reel shafts. To reduce film shipping damage, a design is suggested for an exchange reel shipping case with a center shaft passing through the 1-in. openings in the hubs of the new reels.
Publication Date
1947-03-01
DOI
10.5594/J12726
Link
https://doi.org/10.5594/J12726
Author(s)
Ellsworth S. Miller
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12726.json

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Ellsworth S. Miller; A Projection Reel of Improved Design, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12726
Snippet:
Ellsworth S. Miller; A Projection Reel of Improved Design, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12726

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Ellsworth S. Miller; A Projection Reel of Improved Design, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12726
Snippet:
<span class="citation">Ellsworth S. Miller; <cite>A Projection Reel of Improved Design</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947. Available at <a href="https://doi.org/10.5594/J12726" target="_blank" rel="noopener">https://doi.org/10.5594/J12726</a></span>

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Preview:
Ellsworth S. Miller; A Projection Reel of Improved Design, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947
doi: 10.5594/J12726
url: https://doi.org/10.5594/J12726
Snippet:
<li>
Ellsworth S. Miller; <cite id="bib-10-5594-j12726">A Projection Reel of Improved Design</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 48, Issue: 3, March 1947); SMPTE, 1947
<span class="doi">10.5594/J12726</span>
</li>