发明名称 Plough for winning material from a mineral face
摘要 A plough for winning material from a mineral face comprises two plough bodies connected together in a tension-proof manner. The two plough bodies are provided with detachable cutters at each end thereof. A rigid beam, also provided with detachable cutters, connects the two plough bodies at a predetermined height. The beam carries a plough upper part for each of the two plough bodies. Each plough upper part is provided with detachable cutters and is pivotably mounted on the beam by means of a parallelogram linkage. Each plough upper part is guided and supported on the beam by means of a keyed connection.
申请公布号 US4179161(A) 申请公布日期 1979.12.18
申请号 US19780883931 申请日期 1978.03.06
申请人 GEWERKSCHAFT EISENHUTTE WESTFALIA 发明人 BREUER, OSWALD;STEINKUHL, BERND
分类号 E21C27/32;(IPC1-7):E21C27/34 主分类号 E21C27/32
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