Method of unwinding filmstrip from a spiral processing reel

摘要

A method of retracting a filmstrip wound on a filmstrip reel. The filmstrip has a rear end which is attached to a spool of a film cartridge. The filmstrip reel comprising a pair of side walls, each side wall having a spiral track for retaining an edge of the filmstrip. The filmstrip is rewound into the film cartridge by applying a removing force on the rear end of the filmstrip in a direction for rewinding the filmstrip into the films cartridge. At the same time, one of the side walls is oscillated with respect to the other side wall about its central axis.