A Compounded Geneva Pull-Down for Motion Picture Printers

Fordyce Tuttle

Practically any mechanism used for moving film intermittently in motion picture apparatus can be run at a speed a great deal higher than the normal operating speed of intermittent printers without damage to the film. The time occupied for the actual movement of the film in an intermittent printer is time lost, of course, from the useful part of the shutter cycle; that is, during the movement of the film there can be no exposure. It would be advantageous, then, if the shutter cycle could be reapportioned, allowing more time in the useful part of the cycle by speeding up within the permissible limits the movement of the film.

Print ISSN
Published
1930-11
Content type
Original Research
DOI
10.5594/J05609