An Automatic Apparatus for the Detection of Irregularities in the Tobacco Filling of Cigarettes / Ein automatisches, registrierendes Gerät für die Kontrolle der Gleichmässigkeit der Cigarettenstopfung

An automatic apparatus is described for the detection of irregularities in the tobacco filling of cigarettes. The cigarette is drawn between two rows charged with a defined pressure, and the deformation of the cigarette transversely to its axis is enregistered on a paper band advancing with the same speed as the cigarette. When the deformation exceeds a predetermined limit, a leak is enregistered on an electric counter. The extent of the deformation, for a given cigarette type, is a function of the cigarette weight, the humidity of the tobacco and the pressure on the rows; these factors must be investigated before the cigarettes are tested on the apparatus.