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November, 1924
AMERICAN CINEM ATOGRAPHER
Five
Improvements in Cinema Laboratory Apparatus
From Transactions, Society Title Making, Film View
ed Motion Picture Engi By J. I. Crabtree and C. E. Ives ing and Other Devices Are
neers. Eas'"""! R"ea"h Labora,ory Described.
Fig. 1. Title Making Apparatus.
Fig. 2. Adjustable Title Card Holder
16 REV PER SECOND I6TEEJH 46 DlflM PITCH ■Hi PITCH Dlfl
Elevation.
Fig. 3. Viewing Machine.
iOIER ROLL
Fig. 4. Viewing Machine.
In this paper is presented a description of the following apparatus in use in the Film Department of the Research Laboratory of the Eastman Kodak Company:
1. An Apparatus for Making Motion Picture Titles.
2. Continuous Film Viewing Machine.
3. Semi-Automatic Sensitometer.
4. Safety Devices.
1. Apparatus for Making Motion Picture Titles
When this apparatus was designed it was required to take care of title cards of varying sizes so that it was necessary to be able to vary the distance between the camera and title card holder from two to six feet. In choosing between a horizontal and vertical arrangement of camera and easel the vertical arrangement has many
advantages when photographing title cards of uniform size, but in order to be able to vary the distance between the camera and title card it would be necessary to move either the camera or easel against gravity so that the horizontal arrangement was finally adopted.
A second problem in design, was whether to incorporate all adjustments in the easel, the camera remaining stationary; or to construct a fixed easel nad incorporate all adjustments in the camera supports, or to make both camera and easel adjustable. It was finally decided to make the easel adjustable in a vertical direction, to rotate the title card holder, and to secure side adjustment by moving the camera. In view of the difficulty of preventing vibration of the camera, it is considered that it would be preferable in future designs to secure side adjustment by moving the title card holder and not the camera.