Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine (1914)

Record Details:

Title:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Date:
1914
Author:
Gage, Simon Henry, 1851-1944
Publisher:
Ithaca, N.Y. : Comstock Publishing Company
Volume:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Leaf #:
000444
Language:
English
Subjects:
Lantern projection, Motion picture projection
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Bibliography: p. 693-703
Date Added:
July 19, 2022
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CH. XI] PRECAUTIONS FOR MOVING PICTURES 429 of cement on the corners of the film. Then immediately press the two ends of the film together firmly for a few seconds, being careful not to push the ends of the film sidewise in doing so. Several points must be carefully observed in order to get a splice which is satisfactory and durable. i . Cut the film so that the dividing lines between two pictures come exactly together or there will be a "misframe" when the film is running through the machine. FIG. 235A. EDISON FILM MENDER. (Cut loaned by the Edison Manufacturing Company"). It has three gates or hinges — those on the sides clamp down and hold the film while the ends are cut and prepared and the cement is applied. The narrow middle clamp is then closed holding the ends of the film firmly in contact while the cement dries. The gauge shown at the left enables the operator to cut true edges on the film and scrape the proper width for the cementing. FIG. 235. METHOD OF PATCHING A MOVING PICTURE FILM. One end of the film B, b is cut on the line between two pictures and the other end A , a, is cut a short distance beyond the line between two pictures. The film side of one and the shiny side of the other are scraped, cement is applied and the two ends are placed together so that the sprocket holes will match. 2. Scrape the film well, both the back side of b, and the emulsion side of a. 3. Apply the cement and work rapidly. 4. Be sure to hold the emulsion side of both films either up or down.