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Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950)
[ACTIVE]

A Heavy-Duty 16-Mm Sound Projector

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
55, No. 4, pp. 425–438
Abstract
An intermittent sprocket pulldown with accelerated geneva drive has its own directly connected synchronous motor. The remaining sprockets and shutter are driven by a second synchronous motor. The two systems, engaged temporarily for starting, run mechanically independent to eliminate shock forces and obtain an inherently flutter-free sound drive. New optics throughout give high picture and sound resolution. Tungsten and arc light sources are provided. Other features include a high-quality amplifier, independently driven accessories, turret accommodation for instantaneous lamp replacement, improved base-up mounting of lamp and improved floor mounting.
Publication Date
1950-10-01
DOI
10.5594/J14578
ISSN
Print: 0898-042X
Link
https://doi.org/10.5594/J14578
Author(s)
Edwin C. FrittsCamera Works, Eastman Kodak Co., Rochester, N.Y.
Copyright
© 1950 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Schade W. E. , “A new f /1.5 lens for professional 16-mm projectors,” Jour. SMPTE , vol. 54 , pp. 337 – 344 , Mar. 1950 . EXTERNAL
  • 2. Chandler J. S. , “Some theoretical considerations in the design of sprockets for continuous film movement,” Jour. SMPE , vol. 37 , pp. 164 – 176 , Aug. 1941 . EXTERNAL
  • 3. McLeod J. H. Altman F. E. , “An optical system for the reproduction of sound from 35-mm film,” Jour. SMPE , vol. 31 , pp. 36 – 45 , July 1938 . EXTERNAL
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Plain text (ISO 690 compliant)

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Edwin C. Fritts; A Heavy-Duty 16-Mm Sound Projector, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J14578
Snippet:
Edwin C. Fritts; A Heavy-Duty 16-Mm Sound Projector, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J14578

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Preview:
Edwin C. Fritts; A Heavy-Duty 16-Mm Sound Projector, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J14578
Snippet:
<span class="citation">Edwin C. Fritts; <cite>A Heavy-Duty 16-Mm Sound Projector</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950. Available at <a href="https://doi.org/10.5594/J14578" target="_blank" rel="noopener">https://doi.org/10.5594/J14578</a></span>

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Preview:
Edwin C. Fritts; A Heavy-Duty 16-Mm Sound Projector, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950
doi: 10.5594/J14578
url: https://doi.org/10.5594/J14578
Snippet:
<li>
Edwin C. Fritts; <cite id="bib-10-5594-j14578">A Heavy-Duty 16-Mm Sound Projector</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 55, Issue: 4, October 1950); SMPTE, 1950
<span class="doi">10.5594/J14578</span>
</li>

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