发明授权
- 专利标题: Interchangeable insert for railroad switches
- 专利标题(中): 铁路开关可更换插件
-
申请号: US499申请日: 1993-01-05
-
公开(公告)号: US5303884A公开(公告)日: 1994-04-19
- 发明人: Arturo A. O. Rivas
- 申请人: Arturo A. O. Rivas
- 专利权人: Rivas Arturo A O
- 当前专利权人: Rivas Arturo A O
- 优先权: MXX21024 19900606
- 主分类号: E01B7/02
- IPC分类号: E01B7/02
摘要:
The invention relates to a manganese steel insert to a railroad track switch point of the type designed to have a planar coupling system within both the web of the rail and the switch point of the insert, instead of the conventional curved coupling surface in use at the present. This is achieved by means of an attachment of the same material as the insert (or other steel) on the insert contact surfaces, thus achieving precision plane surfaces during the machining phase.
公开/授权文献
- USD352457S Bottle cap 公开/授权日:1994-11-15