a paired - roll straightening machine designed for straightening rolled shapes , round and shaped tubes and rolled section stock comprises a number of stationarily installed stands mounting pairs of driving shafts which form passes by their rolls , corresponding to the cross section of an article being straightened . the rolls form pairs with some of the pairs intended for propelling the article and the remaining pairs for bending the article . each roll of the pairs intended for bending the article is provided with an individual drive for rocking in a given plane . in addition , each bending pair of rolls is provided with an additional drive for combine rocking of both rolls of the pair in a plane perpendicular to the given one . this allows for multiplanar elastoplastic bending of the article to be performed in the course of straightening .