it is also contemplated that the respective levers 2 4 and 6 could be remotely manually operated to appropriately set the aforementioned spaces 1 1 1 2 1 3 with more specific reference to the motion of the lever unit when the lever 2 moves about axis b as shown with dash dotted lines in fig1 then the entire device moves away from the beater circle that is 1 1 and 1 2 become greater to the same extent the respective positions of the lever 2 and the separating blades 9 1 and 9 2 shown in fig1 represent their nearest positions to the beater circle during operation of the cleaning device of the invention when the lever 4 is moved about axis c as shown in fig1 with dash dotted lines then the guide elements 10 1 10 2 and 10 3 move away from the beater circle while the separating blades 9 1 and 9 2 retain their positions that is 1 2 becomes greater while 1 1 remains the same the respective positions of the lever 4 and the guide elements 10 1 10 2 and 10 3 shown in fig1 represent the nearest positions to the beater circle with relation to the separating blades when the lever 6 is moved about axis g as shown in fig1 with.