REMOVABLE PHOTOGRAPHIC FILM CARTRIDGE WITH AUTOMATIC LIGHT SEAL

摘要

A film cartridge in which the film is moved between a supply and take-up spool within the cartridge past a spring-biased pressure roller which serves as the film positioning roller in the camera and the pressure rollers of the film drive and when the cartridge is removed serves to lock the film against the edges of the cartridge at an opening therein to form a light seal.