Apparatus for forming a tobacco stream

摘要

The distributor of a cigarette rod making machine has an air-permeable tobacco transporting conveyor adjacent to a channel which is bounded by two spaced apart sidewalls and receives a mixture of tobacco particles and compressed air. The quantity of air entering the channel exceeds the quantity which can be evacuated through the air-permeable conveyor. Therefore, at least one of the sidewalls has a recessed air-permeable portion adjacent to an external suction chamber to draw the surplus of air from the channel without adversely influencing the trajactories of tobacco particles which are propelled toward the conveyor to form thereon a growing homogeneous tobacco stream.