FR487969A - Improvements to railway sleepers - Google Patents
Improvements to railway sleepersInfo
- Publication number
- FR487969A FR487969A FR487969A FR487969DA FR487969A FR 487969 A FR487969 A FR 487969A FR 487969 A FR487969 A FR 487969A FR 487969D A FR487969D A FR 487969DA FR 487969 A FR487969 A FR 487969A
- Authority
- FR
- France
- Prior art keywords
- railway sleepers
- sleepers
- railway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487969XA | 1917-02-17 | 1917-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR487969A true FR487969A (en) | 1918-08-09 |
Family
ID=1524382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR487969A Expired FR487969A (en) | 1917-02-17 | 1917-12-12 | Improvements to railway sleepers |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR487969A (en) |
-
1917
- 1917-12-12 FR FR487969A patent/FR487969A/en not_active Expired
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