Abstract:
Device for setting the intervening space between a fluted bottom roller and a fluted top roller rotatably supported by a pair of roller stands by way of respective bearings. Each bearing supporting the top roller is disposed in a housing being held by one of the roller stands in slidable condition toward the bottom roller, a stopper secured to each roller stand restricts the displacement of the housing toward the bottom roller. Each housing is provided with a regular square or polygonal transverse cross section and the distances between the longitudinal axis of the housing and the surfaces of abutments formed on the longitudinal surfaces of the housing are different from each other so that the above-mentioned intervening space can be changed by changing the abutment which contacts the stopper.