| 摘要 |
PCT No. PCT/DK81/00005 Sec. 371 Date Sep. 21, 1981 Sec. 102(e) Date Sep. 21, 1981 PCT Filed Jan. 15, 1981 PCT Pub. No. WO81/02120 PCT Pub. Date Aug. 6, 1981.For straightening of bent pipes a device with a base in two parts provided for spanning the bent pipe on one longitudinal side of the bend of the pipe. One base is connected to one end of a tie bar, which is pivotally fastened at the other end to a piston rod in a working cylinder. The working cylinder is pivotally fastened to a corner of a triangular straightener, another corner being pivotally fastened to one part of the other base, and the side opposite this corner bearing a thrust block or roller, which presses against the other longitudinal side of the bend of the pipe. |
