Thick web miter rail joint system between stationary and vertically movable track sections
US6672516B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B11/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A miter rail system for spanning a railroad track joint includes a fixed rail and a lift rail formed from thick web rail stock. The joining ends of the fixed and lift rails are notched to interfit with each other along a predetermined longitudinal extent along the notches so that at least gage sides of the associated fixed and lift rails are in alignment with each other to provide a generally smooth and uninterrupted surface for rolling stock wheels. Preferentially, the inward facing edge of the notch is substantially entirely coextensive with a side of the thick web as a result of milling out, once the ends of the rails adapted to face each other have been bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.