发明授权
- 专利标题: Railroad trackwork intersections
- 专利标题(中): 铁路轨道交叉口
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申请号: US920777申请日: 1997-08-29
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公开(公告)号: US5845881A公开(公告)日: 1998-12-08
- 发明人: Keith Young , Stephen R. Kuhn , Joan Q. Xia , Thomas S. Baker, Jr.
- 申请人: Keith Young , Stephen R. Kuhn , Joan Q. Xia , Thomas S. Baker, Jr.
- 申请人地址: IL Chicago
- 专利权人: ABC Rail Products Corporation
- 当前专利权人: ABC Rail Products Corporation
- 当前专利权人地址: IL Chicago
- 主分类号: E01B7/10
- IPC分类号: E01B7/10 ; E01B7/00
摘要:
A railroad trackwork intersection assembly such as a crossing intersection or a turnout intersection is provided with at least one flange-bearing frog subassembly which has railcar wheel flangeways of uniform depth throughout the frog planform that co-operate with trackwork traffic rails, with easer subassemblies that are positioned exterior to but abut the frog subassembly, that have sloping flange support surfaces, and that may be removed from or adjusted in the assembly without moving or adjusting either the frog subassembly or the co-operating trackwork traffic rails.
公开/授权文献
- US5303532A Mower support apparatus and system 公开/授权日:1994-04-19