Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
rail profile
|
| gptkbp:designedFor |
eliminating need for chairs and sleepers
|
| gptkbp:historicalSignificance |
early attempt at cost reduction in railway construction
|
| https://www.w3.org/2000/01/rdf-schema#label |
Barlow rail
|
| gptkbp:introducedIn |
1849
|
| gptkbp:inventedBy |
gptkb:William_Henry_Barlow
|
| gptkbp:material |
wrought iron
|
| gptkbp:notableFeature |
wide base
laid directly on ballast no need for chairs |
| gptkbp:replacedBy |
gptkb:bullhead_rail
gptkb:flat-bottomed_rail |
| gptkbp:usedIn |
gptkb:Great_Britain
gptkb:railway_line |
| gptkbp:bfsParent |
gptkb:William_Henry_Barlow
|
| gptkbp:bfsLayer |
6
|