Photographic film assembly comprising a photosensitive layer and another layer hingedly connected together

Claim 1

IN A FILM UNIT FOR CARRYING OUT A PHOTOGRAPHIC PROCESS, THE COMBINATION WHICH COMPRISES A PHOTOSENSITIVE LAYER, A SECOND LAYER, AND HINGE MEANS CONNECTING SAID PHOTOSENSITIVE LAYER TO SAID SECOND LAYER ADJACENT ONE END OF ONE OF SAID LAYERS WHEREBY SAID SECOND LAYER IS PIVOTABLE ABOUT SAID HINGE MEANS FROM A POSITION IN SUPERPOSED AND GENERALLY PARALLEL RELATION TO SAID PHOTOSENSITIVE LAYER TO A POSITION WHEREIN IT IS ANGULARLY DISPOSED AND SPREAD APART FROM SAID PHOTOSENSITIVE LAYER, SAID SECOND LAYER BEING SHAPED SO THAT AT LEAST A PART THEREOF, BEGINNING AT THE END OF THE SECOND LAYER MOST DISTANT FROM SAID HINGE MEANS, IS OVERTURNED UPON ITSELF, SAID SECOND LAYER COMPRISING A FLEXIBLE AND DEFORMABLE MATERIAL WHEREBY IT IS NORMALLY URGED INTO ITS OVERTURNED CONDITION AND IS YIELDABLE UNDER STRESS TO BE MOVED INTO SUPERPOSED RELATION WITH SAID PHOTOSENSITIVE LAYER AND TO RETURN TO ITS OVERTURNED CONDITION UPON RELEASE OF SAID STRESS, SAID PHOTOSENSITIVE LAYER HAVING AS ITS PHOTOSENSITIVE MATERIAL A SALT FROM THE CLASS CONSISTING OF (A) THE PHOTOSENSITIVE FERRIC SALTS, (B) THE PHOTOSENSITIVE DIAZONIUM SALTS, (C) THE PHOTOSENSITIVE DICHROMATES, AND (D) HEAVY METALS SALTS CAPABLE OF FORMING A LATEN IMAGE UPON PHOTO-EXPOSURE AND CAPABLE OF DEVELOPMENT TO PRODUCE A VISIBLE IMAGE COMPRISING THE METAL OF SAID SALT.