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: The invention relates to a device for stepwise conveying of massive objects, comprising a fixed series of laying stations (3) spaced by a constant pitch and a mobile series of recovery stations (2) spaced by the same pitch and arranged on a supporting beam (1) that is movable vertically and longitudinally.

Abstract: A metal band product rolling installation comprising at least two rolls with parallel axes inside a fixed holding stand (1) having two separate standards (11a, 11b) each forming a closed frame comprising two stiles (12 12'), an upper crossbeam (16) and a lower crossbeam (16'), and delineating a center window (6), at least one of the rolls being a back-up roll (3), carried by two supporting parts (4a, 4b) each resting on a back-up face (63) of the corresponding crossbeam (16 16') of each standard (11a, 11b). According to the invention, at least on one side of the rolling plane (T1), the crossbeam (16) of each standard (11a, 11b) is fitted with a back-up face (63) exhibiting, over the whole width of the window (6), a concave rounded profile extending on an angular sector of at least 180.degree.

Abstract: A device and method for changing rolls in a roll stand. Each stand includes two working rolls, each having a backing up assembly including at least one intermediate roll. An adjustment structure is provided for adjusting levels in relation to the axes of each of the rolls with respect to the stand and for setting forth four levels of disassembly, respectively of both working rolls and both intermediate rolls. Two pairs of rails are provided parallel to the axes of the rolls arranged on the stand at two constant levels each at a level of disassembly and carrying sliding carrying members for removal of the corresponding intermediate roll. A handling device is placed on one side of the stand and includes at least one handling and guiding chassis carrying two pairs of rails aligned respectively with both pairs of rails on the stand. At least one extractor device is mounted to slide at a constant level on the guiding chassis.