A Two-Speed Drive for Continuous Motion-Picture Printers

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 68, No. 1, pp. 11–14
Abstract: In this two-speed drive, adapted to a Bell & Howell Printer, Model D, two motors running continuously drive the fields of two electric clutches in the same direction, one at approximately twice the speed of the other. The armatures of the clutches are on the same shaft and are splined to the hub of a third pulley that drives the printer. An electrical circuit triggered by a cuing system activates one clutch or the other to change the speed of the printer within a short enough interval so that there is no loss in projection quality of the print. Such a speed changer permits optimum productivity on a printer using negatives containing scenes of widely varying densities.
Publication Date: 1959-01-01
DOI: 10.5594/J13854
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J13854
Author(s): John J. GrahamColor Technology Div., Eastman Kodak Co., Rochester 4, N.Y.
Howard F. OttColor Technology Div., Eastman Kodak Co., Rochester 4, N.Y.
Copyright: © 1959 Society of Motion Picture and Television Engineers, Inc.

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J13854.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

John J. Graham and Howard F. Ott; A Two-Speed Drive for Continuous Motion-Picture Printers, Journal of the SMPTE ( Volume: 68, Issue: 1, January 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J13854

Snippet:

John J. Graham and Howard F. Ott; A Two-Speed Drive for Continuous Motion-Picture Printers, Journal of the SMPTE ( Volume: 68, Issue: 1, January 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J13854

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">John J. Graham and Howard F. Ott; <cite>A Two-Speed Drive for Continuous Motion-Picture Printers</cite>, Journal of the SMPTE ( Volume: 68, Issue: 1, January 1959); SMPTE, 1959. Available at <a href="https://doi.org/10.5594/J13854" target="_blank" rel="noopener">https://doi.org/10.5594/J13854</a></span>

SMPTE's HTML Pub

Preview:

John J. Graham and Howard F. Ott; A Two-Speed Drive for Continuous Motion-Picture Printers, Journal of the SMPTE ( Volume: 68, Issue: 1, January 1959); SMPTE, 1959
doi: 10.5594/J13854
url: https://doi.org/10.5594/J13854

Snippet:

<li>
John J. Graham and Howard F. Ott; <cite id="bib-10-5594-j13854">A Two-Speed Drive for Continuous Motion-Picture Printers</cite>, Journal of the SMPTE ( Volume: 68, Issue: 1, January 1959); SMPTE, 1959
<span class="doi">10.5594/J13854</span>
</li>

Referenced By

Techniques in Color Duplication [Active]