Film cassette for several strip films

A film cassette adapted to receive at least two photosensitive strip films each providing for a multiplicity of exposures and having perforation for film transport means on the camera side,

• said cassette consisting of a light proof flat, flexible case of substantially the same length as said strip film,
• two film orifices arranged at each end face of the cassette, said orifices being defined by said case and normal to the length of the case and the two orifices at each end arranged one above the other in the end face of the film cassette
• in combination with
• four identical strip films, with a cut-away portion at one end side and a perforation at the other side for transport purposes,
• and positioned in said cassette with their emulsion side faces in pairs toward different flat sides of the cassette with light sealing means in said orifices adapted to permit said strip films to pass from the lightproof case through the orifices to the exposure place in the camera and back into the case
• and to receive said strip films so that they are arranged in said cassette with their longitudinal edges one above the other, said cassette being adapted to bring the perforation of the strip films successively into engagement with the transport mechanism of the camera to provide removal of each strip film out of the cassette step by step for successive image exposure exterior to the cassette to receive said strip reintroduced into the cassette after the last exposure and said case being so constructed and the strip film so arranged in the cassette that after the exposure of said strip film the cassette is removable from the camera and rotatable parallel to one of its axis and
• the cassette is adapted to provide for the removal of the next strip film from the cassette by engagement with the mechanism of the camera for advancement of the film for exterior exposure and subsequent reintroduction of the next strip film into the cassette.