WO1988003973A1 - Cast iron sleeper with built-in rail anchors - Google Patents
Cast iron sleeper with built-in rail anchors Download PDFInfo
- Publication number
- WO1988003973A1 WO1988003973A1 PCT/IT1987/000097 IT8700097W WO8803973A1 WO 1988003973 A1 WO1988003973 A1 WO 1988003973A1 IT 8700097 W IT8700097 W IT 8700097W WO 8803973 A1 WO8803973 A1 WO 8803973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeper
- previous
- fact
- built
- anchorages
- Prior art date
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
- E01B3/44—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from other materials only if the material is essential
Definitions
- This invention has, as a subject, a cast iron sleeper with built in anchorages (hooks) for rail track. It is known that - at present - the most used rail sleeper is in wood, of the most different kinds, suitably treated and processed, on which the track linking items are set.
- the average life of the wood sleeper ranges between 15-20 years.
- Said pre-compressed reinforced concrete sleeper has replaced wood in its function of stress distributor, but it has kept the need to separately arrange anchorages, prior to a preparation, seasoning, impregnation, and bituminization work on the sleeper; all this is definitely expensive.
- the subject invention - obtained by casting - allows to obtain a rail sleeper 1 with well-defined mechanical characteristics, able to meet - in a very optimal way - the necessary principles of strenght and resistance of the track to the pressure specific stresses, distributing them on a wide surface, and allowing - by using anchorages 2 obtained by casting (in a single piece, with the rail track 1 casting) - the track locking by the classical dogs and plate system.
- the cast iron rail sleeper 1 of the subject has a practically unlimited life, it does not need to be imported; thanks to its structure and shape, it optimally distributes stresses; it lends the track a strenght suitable to heavy and very fast traffic; it does not require the plates anchorages arrangement, since they already are obtained by casting.
- the liquid cast iron - thanks to analyses suitable to the cast required mechanical characteristics - is poured in the mould, which - once the hardening process is finished - is shaken out and deburred. If necessary, a mechanical process is carried out to give anchorages (hooks) the precise required geometry in the coupling with fastening dogs.
- said sleeper 1 can have any section (if anticipated cast anchorages (hooks) are built in).
- said sleeper 1 can totally be hollow, with different thicknesses, and completely filled up with inert material (for example: sand), in order to dampen vibrations, and so obviously obtaining a lighter cast.
- inert material for example: sand
- Table 1 Figure 1 shows the sleeper 1 front view; Figure 2 shows a sleeper 1 cross section; Figure 3 shows the sleeper 1 upper view. Thickness, shape, length, sections - as shown in the drawing - represent one of the best solutions with respect to the functionality, the optimal shape, and also with respect to the overall weight.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Ropes Or Cables (AREA)
- Earth Drilling (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Railway Tracks (AREA)
- Braking Arrangements (AREA)
- Basic Packing Technique (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Joining Of Building Structures In Genera (AREA)
- Clamps And Clips (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN896/CAL/87A IN168978B (en) | 1986-11-17 | 1987-11-13 | |
DE8787907625T DE3773215D1 (en) | 1986-11-17 | 1987-11-13 | CAST-IRON SLEEVE WITH BUILT-IN RAIL ANCHORS. |
AT87907625T ATE67539T1 (en) | 1986-11-17 | 1987-11-13 | CAST IRON THRESHOLD WITH BUILT-IN RAIL ANCHORS. |
NO883101A NO883101L (en) | 1986-11-17 | 1988-07-12 | CASTLE IRON SLEEP WITH BUILT-IN SKIN ANCHORS. |
KR1019880700814A KR890700182A (en) | 1986-11-17 | 1988-07-12 | Cast iron sleepers equipped with rail rail hooks (H00K) |
DK387988A DK387988D0 (en) | 1986-11-17 | 1988-07-12 | CASTLE SWEETS WITH BUILT-IN ANCHORS FOR RAILWAYS |
FI892171A FI892171A0 (en) | 1986-11-17 | 1989-05-05 | GJUTJAERNSLIPER MED INBYGGDA RAELFAESTEN. |
BG088866A BG50052A3 (en) | 1986-11-17 | 1989-06-16 | Cast iron transverse with built- in fixing elements for anchor to railway track |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT82818A/86 | 1986-11-17 | ||
IT8682818A IT8682818A0 (en) | 1986-11-17 | 1986-11-17 | CAST IRON CROSSPIECE WITH INCORPORATED HOOKS FOR RAILWAY TRACK. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1988003973A1 true WO1988003973A1 (en) | 1988-06-02 |
Family
ID=11319501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT1987/000097 WO1988003973A1 (en) | 1986-11-17 | 1987-11-13 | Cast iron sleeper with built-in rail anchors |
Country Status (23)
Country | Link |
---|---|
EP (1) | EP0334862B1 (en) |
JP (1) | JPH02500921A (en) |
KR (1) | KR890700182A (en) |
CN (1) | CN1013975B (en) |
AT (1) | ATE67539T1 (en) |
AU (1) | AU609434B2 (en) |
BG (1) | BG50052A3 (en) |
DD (1) | DD275084A5 (en) |
DE (1) | DE3773215D1 (en) |
DK (1) | DK387988D0 (en) |
ES (1) | ES2005698A6 (en) |
FI (1) | FI892171A0 (en) |
GR (1) | GR871737B (en) |
HU (1) | HUT54218A (en) |
IN (1) | IN168978B (en) |
IT (1) | IT8682818A0 (en) |
NO (1) | NO883101L (en) |
PL (1) | PL268838A1 (en) |
PT (1) | PT86152B (en) |
TR (1) | TR23522A (en) |
WO (1) | WO1988003973A1 (en) |
YU (1) | YU207887A (en) |
ZA (1) | ZA878599B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09327524A (en) * | 1996-06-13 | 1997-12-22 | Hamamatsu Photonics Kk | Bed |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1626082A (en) * | 1926-12-14 | 1927-04-26 | William R Halferty | Railway tie |
US1671877A (en) * | 1927-07-02 | 1928-05-29 | Frank J Strzyzewski | Rail tie |
BE770637A (en) * | 1971-07-29 | 1971-12-01 | Schmitz Charles J E N | IMPROVEMENTS AT CROSSINGS FOR RAILWAY TRACKS. |
DE2410433A1 (en) * | 1974-03-05 | 1975-09-18 | Klaus Dipl Ing Dr Hack | Railway sleeper for single or double track traffic - is made of composite, elastic material and has indentations for insertion of rails |
GB1504670A (en) * | 1976-10-20 | 1978-03-22 | Andersson J | Sleeper |
-
1986
- 1986-11-17 IT IT8682818A patent/IT8682818A0/en unknown
-
1987
- 1987-11-13 DE DE8787907625T patent/DE3773215D1/en not_active Expired - Fee Related
- 1987-11-13 GR GR871737A patent/GR871737B/en unknown
- 1987-11-13 JP JP62507105A patent/JPH02500921A/en active Pending
- 1987-11-13 AU AU82369/87A patent/AU609434B2/en not_active Ceased
- 1987-11-13 EP EP87907625A patent/EP0334862B1/en not_active Expired - Lifetime
- 1987-11-13 DD DD87309024A patent/DD275084A5/en not_active IP Right Cessation
- 1987-11-13 IN IN896/CAL/87A patent/IN168978B/en unknown
- 1987-11-13 HU HU876157A patent/HUT54218A/en unknown
- 1987-11-13 WO PCT/IT1987/000097 patent/WO1988003973A1/en active IP Right Grant
- 1987-11-13 AT AT87907625T patent/ATE67539T1/en not_active IP Right Cessation
- 1987-11-16 PL PL26883887A patent/PL268838A1/en unknown
- 1987-11-17 PT PT86152A patent/PT86152B/en not_active IP Right Cessation
- 1987-11-17 ES ES8703281A patent/ES2005698A6/en not_active Expired
- 1987-11-17 CN CN87107900A patent/CN1013975B/en not_active Expired
- 1987-11-17 TR TR762/87A patent/TR23522A/en unknown
- 1987-11-17 ZA ZA878599A patent/ZA878599B/en unknown
- 1987-11-17 YU YU02078/87A patent/YU207887A/en unknown
-
1988
- 1988-07-12 DK DK387988A patent/DK387988D0/en not_active Application Discontinuation
- 1988-07-12 KR KR1019880700814A patent/KR890700182A/en not_active Application Discontinuation
- 1988-07-12 NO NO883101A patent/NO883101L/en unknown
-
1989
- 1989-05-05 FI FI892171A patent/FI892171A0/en not_active Application Discontinuation
- 1989-06-16 BG BG088866A patent/BG50052A3/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1626082A (en) * | 1926-12-14 | 1927-04-26 | William R Halferty | Railway tie |
US1671877A (en) * | 1927-07-02 | 1928-05-29 | Frank J Strzyzewski | Rail tie |
BE770637A (en) * | 1971-07-29 | 1971-12-01 | Schmitz Charles J E N | IMPROVEMENTS AT CROSSINGS FOR RAILWAY TRACKS. |
DE2410433A1 (en) * | 1974-03-05 | 1975-09-18 | Klaus Dipl Ing Dr Hack | Railway sleeper for single or double track traffic - is made of composite, elastic material and has indentations for insertion of rails |
GB1504670A (en) * | 1976-10-20 | 1978-03-22 | Andersson J | Sleeper |
Also Published As
Publication number | Publication date |
---|---|
BG50052A3 (en) | 1992-04-15 |
PT86152B (en) | 1994-09-30 |
ES2005698A6 (en) | 1989-03-16 |
PL268838A1 (en) | 1988-07-21 |
NO883101D0 (en) | 1988-07-12 |
DE3773215D1 (en) | 1991-10-24 |
JPH02500921A (en) | 1990-03-29 |
EP0334862B1 (en) | 1991-09-18 |
IN168978B (en) | 1991-08-03 |
AU8236987A (en) | 1988-06-16 |
GR871737B (en) | 1988-03-17 |
HUT54218A (en) | 1991-01-28 |
FI892171A (en) | 1989-05-05 |
AU609434B2 (en) | 1991-05-02 |
YU207887A (en) | 1991-02-28 |
CN1013975B (en) | 1991-09-18 |
ZA878599B (en) | 1988-05-11 |
PT86152A (en) | 1988-12-15 |
DK387988A (en) | 1988-07-12 |
EP0334862A1 (en) | 1989-10-04 |
IT8682818A0 (en) | 1986-11-17 |
FI892171A0 (en) | 1989-05-05 |
TR23522A (en) | 1990-03-01 |
DD275084A5 (en) | 1990-01-10 |
KR890700182A (en) | 1989-03-10 |
NO883101L (en) | 1988-07-12 |
DK387988D0 (en) | 1988-07-12 |
CN87107900A (en) | 1988-06-15 |
ATE67539T1 (en) | 1991-10-15 |
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