Film guide for roll film cameras

Claim 1

A PHOTOGRAPHIC CAMERA COMPRISING A CAMERA BODY HAVING AN IMAGE APERTURE FRAME IN WHICH IS MOUNTED A GLASS PLATE, SAID CAMERA INCLUDING A BACK WALL HAVING A RESILIENTLY SUSPENDED FILM PRESSURE PLATE, SAID PRESSURE PLATE BEARING AGAINST SAID IMAGE APERTURE FRAME WHILE PROVIDING A FILM GUIDE CHANNEL BETWEEN THE CENTRAL PORTIONS THEREOF AND SAID GLASS PLATE, A SUPPORTING PIN SLIDABLY MOUNTED IN SAID CAMERA BODY, MEANS FOR MOVING SAID SUPPORTING PIN BETWEEN AN OPERATIVE POSITION AND AN INOPERATIVE RETRACTED POSITION, SAID SUPPORTING PIN IN SAID OPERATIVE POSITION ENGAGING SAID FILM PRESSURE PLATE TO HOLD SAID PRESSURE PLATE AT AN INCREASED DISTANCE FROM SAID GLASS PLATE TO PROVIDE AN ENLARGED FILM GUIDE CHANNEL THROUGH WHICH A THICKENED PORTION OF FILM AT AN ADHESIVE ATTACHMENT POINT MAY PASS WITHOUT BINDING, FILM WINDING AND COUNTING MEANS AND A FILM WIND LOCKING PAWL FOR LATCHING SAID WINDING AND COUNTING MEANS, AND LATCHING MEANS FOR HOLDING SAID SUPPORTING PIN IN SAID OPERATIVE POSITION, SAID LATCHING MEANS BEING RELEASED BY SAID FILM WIND LOCKING PAWL DURING ITS MOVEMENT INTO LOCKING POSITION, SAID LATCHING MEANS INCLUDING A DOUBLE-ARMED LEVER AND A LOCKING LEVER HAVING A RECESS, SPRING MEANS FOR ACTING ON ONE ARM OF SAID DOUBLE-ARMED LEVER TO URGE SAID SUPPORTING PIN TOWARD ITS OPERATIVE POSITION UNDER A TENSION LESS THAN THE TENSION OF OTHER SPRINGS RESILIENTLY SUSPENDING SAID PRESSURE PLATE ON SAID CAMERA BACK, THE OTHER ARM OF SAID DOUBLE-ARMED LEVER BEING ENGAGED IN SAID LOCKING LEVER RECESS UNDER THE ACTION OF ANOTHER ARM OF SAID SPRING MEANS, AND FILM WINDING AND COUNTING MEANS AND A FILM WIND LOCKING PAWL FOR LATCHING SAID WINDING AND COUNTING MEANS, SAID LOCKING LEVER LYING IN THE PATH OF MOVEMENT OF SAID PAWL TO BE RELEASED THEREBY.