| 摘要 |
PCT No. PCT/DE92/00048 Sec. 371 Date Sep. 22, 1992 Sec. 102(e) Date Sep. 22, 1992 PCT Filed Jan. 16, 1992 PCT Pub. No. WO92/13175 PCT Pub. Date Aug. 6, 1992.A cutting implement for a mining machine includes a chisel and a holder for the chisel. The chisel has a flange which abuts the holder and is provided with a first recess. The holder has a second recess which registers with the first recess and communicates with a water supply channel in the holder. The second recess accommodates a hollow cylindrical seal. A tubular element bridges the two recesses and has a portion of smaller diameter which is received by the seal and a portion of larger diameter which is located in the first recess and confines the seal. The portion of larger diameter is embraced by a cap, and the cap carries a nozzle which is arranged to spray the cut made by the chisel. The seal, tubular element, cap and nozzle are all recessed from the outer peripheral surface of the chisel.
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