Advancement of film strips of different widths and/or sprocket h

Details Advancement of film strips of different widths and/or sprocket h Advancement of film strips of different widths and/or sprocket h

1974-06-17

1976-08-03

Hix, L. T.

Optics: motion pictures

With plural picture sizes and types

352187, 226 76, G03B 124

Patent

active

039726061

ABSTRACT:
A rotary sprocket disc for driving motion picture film is characterized in its construction by sprocket teeth enabling interchangeable transporting of film strips of different dimensions. Certain teeth are so disposed around the sprocket disc that they will mesh with or engage the holes in different film strips, the latter having different strip widths, tooth hole sizes, and pitches.

REFERENCES:
patent: 1318610 (1919-10-01), Sereinsky
patent: 1490279 (1924-04-01), Kucharski
patent: 1979700 (1934-11-01), May
patent: 3053142 (1962-09-01), Wittel
patent: 3240116 (1966-03-01), Stamm
patent: 3499706 (1970-03-01), Hanson et al.
patent: 3512693 (1970-05-01), Utsumi

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