发明名称 |
Mobile apparatus for distributing and shaping the ballast of a railroad bed |
摘要 |
A pair of ballast plows are mounted on the underside of a mobile frame between the undercarriages thereof. Each plow is associated with a respective track rail and an intermediate part is arranged on the frame for closing the space defined between the plows and extending transversely of the track.
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申请公布号 |
US3877160(A) |
申请公布日期 |
1975.04.15 |
申请号 |
US19740432669 |
申请日期 |
1974.01.11 |
申请人 |
PLASSER, FRANZ;THEURER, JOSEF |
发明人 |
PLASSER, FRANZ;THEURER, JOSEF |
分类号 |
E01B27/02;(IPC1-7):E01B27/04 |
主分类号 |
E01B27/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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