Suction device for feeding sheet material

摘要

A suction device for feeding sheets (11) of material comprises a housing connectable by a pipe to a vacuum device (42) and having apertures over which the sheets pass and through which a suction effect can be created. An eccentrically mounted roller (46) imparts a distortion to the attracted sheets. A single endless perforated belt (30) passes over the apertured surface of the housing. The distortion-imparting roller (46) acts on the inside of the belt and is adjustable by knob (50) to vary the amount of distortion. <IMAGE>