Sliding chair, sliding plate and ribbed plate, respectively, for railway switches or railway crossings
US5125603A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | May 30, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2202/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railway structure for a sliding chair (2), a sliding plate and a ribbed plate (1), respectively, for railway switches or railway crossings. The structure includes friction-reducing sliding members (4, 5) of synthetic plastic material being releasably mounted within recesses (3) in the sliding chair (2) and the plates, respectively. There are accommodated within each recess (3) at least two sliding members (4, 5) having their side surfaces engaged over the major part of the periphery by inwardly protruding walls or profiles of the edge of the recess, so that there results a safe mounting in position of the sliding members (4, 5). The structure makes the interchange of the sliding members a simple procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.