Abstract: A device for stepwise conveying of massive objects, includes a fixed series of laying stations spaced by a constant pitch and a mobile series of recovery stations spaced by the same pitch and arranged on a supporting beam that is movable vertically and longitudinally. The supporting beam rests on the floor by means of at least two actuators for level adjustment operated in a synchronous fashion and each associated with a device for sliding guiding of the supporting beam thereby enabling longitudinal displacement of the said beam in a forward direction in raised position and in a backward direction in lowered position.

Abstract: A roll mill comprising a retaining stand with two distant stanchions (1, 1b), at least two working rolls (2, 2′) each rotating respectively in two chocks, and means for applying bending loads to each end of both working rolls, said means comprising, for both chocks (4, 4′), two sets of, respectively, positive and negative bending jacks.