Device for feeding different gauge films on industrial editing and synchronizing tables, comprising a sprocket having two pairs of toothed crowns for drawing films of two different gauges, this sprocket being axially movable relative to a fixed body for causing a film, as drawn by one pair of crowns, or a film, as drawn by the other pair of crowns, to take a same distance relative to said fixed body, said sprocket automatically taking different speeds of rotation under the conditions where it is moved to different distances relative to said fixed body. The device also comprises a knob which can be rotated relative to the sprocket so as to make the latter idle on its rotational axis and, on continued rotation of the knob, so as to lock said sprocket relative to said fixed body.
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