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Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949)
[ACTIVE]

Precision Speed Control

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
52, No. 5, pp. 561–570
Abstract
A precision speed control is capable of maintaining motor speed within 1 part in 25,000 under voltage variations of plus or minus 20 per cent and load variations from zero to full load. For motion picture production this order of regulation provides the equivalent of synchronous operation without physical connection between such motors.
Publication Date
1949-05-01
DOI
10.5594/J12493
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J12493
Author(s)
A. L. HolcombWestern Electric Company, Hollywood 38, California
Copyright
© 1949 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • (1) Stoller H. M. , United States Patent 2,395,517, February 26, 1946 . EXTERNAL
  • (2) Lane C. E. , “Duplex crystals,” Bell Labs. Rec. , vol. 14 , p. 59 ; February, 1946 . EXTERNAL
  • (3) Ziegler A. W. , “Wire supported crystals,” Bell Labs. Rec. , vol. 13 , p. 140 ; April, 1945 . EXTERNAL
  • (4) Lane C. E. , United States Patent 2,410,825, November 12, 1946 . EXTERNAL
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A. L. Holcomb; Precision Speed Control, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12493
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A. L. Holcomb; Precision Speed Control, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12493

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A. L. Holcomb; Precision Speed Control, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12493
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<span class="citation">A. L. Holcomb; <cite>Precision Speed Control</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J12493" target="_blank" rel="noopener">https://doi.org/10.5594/J12493</a></span>

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Preview:
A. L. Holcomb; Precision Speed Control, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949
doi: 10.5594/J12493
url: https://doi.org/10.5594/J12493
Snippet:
<li>
A. L. Holcomb; <cite id="bib-10-5594-j12493">Precision Speed Control</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 5, May 1949); SMPTE, 1949
<span class="doi">10.5594/J12493</span>
</li>