A take-up assembly for automatic film loading comprises a film take-up spool sleeve having a notch window formed therein for receiving a film catch member, a spool shaft rotatably fitted inside the spool sleeve and supported by a camera body so as to present a given magnitude of friction for its rotation...http://www.google.de/patents/US4411509?utm_source=gb-gplus-sharePatent US4411509 - Take-up assembly for automatic film loading of camera
