| 摘要 |
PCT No. PCT/SE82/00208 Sec. 371 Date Feb. 8, 1983 Sec. 102(e) Date Feb. 8, 1983 PCT Filed Jun. 11, 1982 PCT Pub. No. WO82/04449 PCT Pub. Date Dec. 23, 1982.Coarse waste such as stumps, lumber from demolition and the like is disintegrated in accordance with a method and device comprising at least two cooperating, essentially parallel screws having threads with disintegrating edges which move in mutually opposite feeding directions so that they tear the waste into pieces. |
