Self-developing camera

Claim 1

IN PHOTOGRAPHIC APPARATUS INCLUDING A HOUSING HAVING AN OPENING THROUGH WHICH SUCCESSIVE SECTIONS OF A SHEET ARE WITHDRAWN DURING PROCESSING AND INDEXING MEANS FOR ENGAGING AND ARRESTING MOVEMENT OF SAID SHEET THROUGH SAID APPARATUS, MEANS FOR SEALING SAID OPENING AGAINST THE ADMISSION OF LIGHT, SEVERING SAID SUCCESSION SECTIONS ALONG TRANSVERSE LINES, AND CONTROLLING ADVANCEMENT OF SAID SHEET THROUGH SAID APPARATUS, THE LAST-MENTIONED MEANS COMPRISING, IN COMBINATION: A PAIR OF LIPS EXTENDING FROM SAID HOUSING ADJACENT OPPOSITE SIDES OF SAID OPENING FOR EXCLUDING LIGHT THEREFROM AND AT LEAST ONE OF SAID LIPS HAVING AN OUTER LONGITUDINAL EDGE AT LEAST EQUAL IN LENGTH TO THE WIDTH OF SAID SHEET; SAID LIPS BEING FORMED WITH ADJACENT INDENTATIONS EXTENDING INWARDLY TO PERMIT MANUAL ENGAGEMENT OF PORTIONS OF SAID SHEET LOCATED BETWEEN SAID LIPS; AND A CUTTING MEMBER HAVING AN EDGE SECTION MOUNTED BETWEEN SAID LIPS FOR MANUAL MOVEMENT FROM A CUTTING POSITION TO PERMIT MANUAL ENGAGEMENT OF SAID SHEET BETWEEN SAID LIPS, SAID CUTTING MEMBER IN SAID CUTTING POSITION BEING LOCATED WITH SAID EDGE SECTION EXTENDING ADJACENT SAID EDGE OF SAID ONE LIP ACROSS SAID INDENTATION TO PROVIDE AN EDGE AGAINST WHICH SAID SHEET CAN BE DRAWN FOR SEVERING SAID SHEET ALONG A TRANSVERSE LINE; SAID CUTTING MEMBER BEING COUPLED WITH SAID INDEXING MEANS FOR RELEASING SAID SHEET FOR MOVEMENT IN RESPONSE TO DISPLACEMENT OF SAID CUTTING MEMBER FROM SAID CUTTING POSITION THEREOF.