Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940)

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Automatic Slide Projectors for the New York World's Fair

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Special slide-changing projectors were designed and built for the Kodachrome exhibit in the Eastman building at the New York World's Fair. Eleven machines are synchronized so that panoramic scenes one hundred and eighty-seven feet long may be shown. Indexing of the slides is controlled by notches in a sound-film so that the entire program is automatic. The slides in each machine are arranged in two rows, and the machines each have two gates and two complete optical systems. All the slides in one row are rigidly bolted to a ring-gear forty-eight inches in diameter. For each new picture one of the two ring-gears is spring-indexed into a new position. An optical compensator geared to the ring-gear corrects for any inaccuracies in indexing, and the image is optically “dowelled” on the screen.
Publication Date: 1940-03-01
DOI: 10.5594/J10095
Link: https://doi.org/10.5594/J10095
Author(s): Fordyce Tuttle

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Fordyce Tuttle; Automatic Slide Projectors for the New York World's Fair, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940); SMPTE, 1940. Available at https://doi.org/10.5594/J10095

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Fordyce Tuttle; Automatic Slide Projectors for the New York World&#x27;s Fair, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940); SMPTE, 1940. Available at https://doi.org/10.5594/J10095

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<span class="citation">Fordyce Tuttle; <cite>Automatic Slide Projectors for the New York World&#x27;s Fair</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940); SMPTE, 1940. Available at <a href="https://doi.org/10.5594/J10095" target="_blank" rel="noopener">https://doi.org/10.5594/J10095</a></span>

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Fordyce Tuttle; Automatic Slide Projectors for the New York World's Fair, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940); SMPTE, 1940
doi: 10.5594/J10095
url: https://doi.org/10.5594/J10095

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Fordyce Tuttle; <cite id="bib-10-5594-j10095">Automatic Slide Projectors for the New York World&#x27;s Fair</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 3, March 1940); SMPTE, 1940
<span class="doi">10.5594/J10095</span>
</li>