Disclosed is a film guide device of a camera for introducing the end of a film fed by a sprocket between a take-up spool and a guide member which is in resilient contact with the take-up spool. The guide member is composed of a roller located in the area corresponding to the cutaway portion at the end...http://www.google.de/patents/US4974787?utm_source=gb-gplus-sharePatent US4974787 - Film guide device
