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File:Optic Projection fig 226.jpg

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    Description

    caption: "Fig. 226. Moving Picture Mechanism with Outside Shutter, O S.
    a b Sprocket wheels moving with uniform velocity.
    c Intermittent sprocket wheel which jerks down the short section of film between L and M.
    i Idlers to hold the film on the sprocket wheels.
    F Upper film reel, unwinding.
    G Lower film reel, winding up.

    S Aperture plate."
    Date
    Source

    Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecting Lantern, Moving Picture Machine, by Simon Henry Gage and Henry Phelps Gage, Ph.D. Ithaca, New York, Comstock Publishing Company. 1914. page 408.

    scanned by User:Davepape
    Author unknown (probably Gage & Gage)
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    (Reusing this file)    		 PD-US

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    This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1931, and if not then due to lack of notice or renewal. See this page for further explanation.
    United States
    United States
    This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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    Date/TimeThumbnailDimensionsUserComment
    current17:32, 9 February 2008Thumbnail for version as of 17:32, 9 February 20081,661 × 1,788 (227 KB)DavepapeBot==Summary== {{Information |Description=caption: "Fig. 226. Moving Picture Mechanism with Outside Shutter, O S.
    a b Sprocket wheels moving with uniform velocity.
    c Intermittent sprocket wheel which jerks down the short section of film between

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