APPARATUS FOR LENGTHENED PIECES straightening Russian patent published in 1995 - IPC

FIELD: straightening equipment. SUBSTANCE: apparatus has mounted on bed-frame 1 upper traverse 2 and lower traverse 3, supporting upper rollers 11 and supporting lower rollers 12. Two additional rollers 19 are located on upper traverse by both sides of main upper rollers. Upper rollers 11 are mounted so as to be capable to make axial movement in limits, exceeding width of worked piece. EFFECT: apparatus allows to straighten longitudinal and transverse curvature of large-scaled aluminum plates, ribbed panel, shapes after their thermal treatment. 4 dwg