| 摘要 |
PCT No. PCT/AU92/00248 Sec. 371 Date Apr. 8, 1994 Sec. 102(e) Date Apr. 8, 1994 PCT Filed May 29, 1992 PCT Pub. No. WO93/07344 PCT Pub. Date Apr. 15, 1993.A cutting-edge member for scraper blades having interlocking engagement with adjacent members, each cutting edge member being adjustable and reversible in a position relative to the other members. The interlocking engagement is achieved by the use of non-tapered, angled dove-tailed members spaced along each side of the cutting edge member and being separated by recesses, each dove-tailed member being of a size and shape the same as each of the recesses. |
