发明名称 |
Self metering ballast system |
摘要 |
A ballast metering method and apparatus is disclosed which utilizes a rail mounted metering hopper having a set of forward discharge outlets for directing ballast laterally and downwardly beneath the rails under the pressure of a volume of ballast retained in the hopper. This volume is maintained at a continuously maintained level by selective addition of ballast to the hopper. The discharged ballast forms a pair of spaced apart windrows beneath the rails which is graded to a predetermined height by a sub-track grader blade associated with the hopper. A center discharge opening at the rear of the hopper allows ballast to be directed between the graded windrows. A pair of lateral chutes permit discharge of ballast outwardly of the rails.
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申请公布号 |
US5201127(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19920836875 |
申请日期 |
1992.02.19 |
申请人 |
KESHAW MANUFACTURING COMPANY, INC. |
发明人 |
WHITAKER, JR., JOHN B. |
分类号 |
E01B27/02;E01B27/10;E02F5/22;E02F7/00 |
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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