Abstract: After the start of manufacturing, the control system provisionally calculates a cutting moment necessary to obtain a proper length of the filter rod and compares it with the basic static relationship calculated earlier, after which it makes a gradual adjustment of the cutting moment in relation to the calculated basic static relationship and determines an averaged cutting point of a filter roller considering the information about actual dimensions of the segments and their actual positioning in the roller, conveyed by a sensor. During manufacturing, the averaged cutting point is compared by the control system with the cutting moment and, in order to keep the length tolerance of the filter rod, dynamically corrected considering the information about the segments currently conveyed by the sensor.

Abstract: Assembly having a plurality of conveyors (7, 8, 11, 23, 25, 29) and a variable capacity store (2) with one inlet (3) and one outlet (4) formed on two neighboring levels, a lower one (5) and an upper one (6), closed with a common back plate (9), fixed to a slide (13) making reciprocating movements, the concave surface (10) of which, on the interior side of the store (2) constitutes a conveyor (11), provided with a rotary arm, fixed to a slide (13), the axis of rotation of which is coaxial with a center of curvature of the surface (10) of the back plate (9), and at the inlet (3) there is a swing mounted valve element (18) and a swing limiter (26) for displacing rod shaped elements (1), whereas at the outlet (4) there is swing mounted valve element (20). Moreover the invention presents a method of controlling mass flow of rod shaped elements in the store (2) and self-filling and self-emptying of the store (2) constituting a part of the assembly disposed in a production line of products of tobacco industry.