发明授权
- 专利标题: Railroad tie plate and correctable shim
- 专利标题(中): 铁路系列板和可校正垫片
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申请号: US127995申请日: 1980-03-04
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公开(公告)号: US4260105A公开(公告)日: 1981-04-07
- 发明人: Albert A. Phillips
- 申请人: Albert A. Phillips
- 专利权人: Phillips Albert A
- 当前专利权人: Phillips Albert A
- 主分类号: E01B9/10
- IPC分类号: E01B9/10 ; E01B9/40 ; E01B9/44
摘要:
A railroad plate and connectable shim is disclosed for fastening railroad tracks over ground having a flat or raised topography in an economically feasible manner. The instant system provides a base plate with a sloping grooved channel for reception of the lower flange of a rail to be held in place in combination with a trapezoidal shim to insure the proper cant of the rail over the various topographical areas of the country. The instant base plate, trapezoidal shim, rail and railroad tie are all fastened via a set of screws which are angled towards the center of gravity of the rail.
公开/授权文献
- US6019727A Center conductor and PZT bonding technique 公开/授权日:2000-02-01