GB2010153A - Improvements in the manufacture of frogs for rail equipment - Google Patents
Improvements in the manufacture of frogs for rail equipmentInfo
- Publication number
- GB2010153A GB2010153A GB7847074A GB7847074A GB2010153A GB 2010153 A GB2010153 A GB 2010153A GB 7847074 A GB7847074 A GB 7847074A GB 7847074 A GB7847074 A GB 7847074A GB 2010153 A GB2010153 A GB 2010153A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frog
- core box
- frames
- sand
- frogs
- 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.)
- Granted
Links
- 241000269350 Anura Species 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000004576 sand Substances 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Abstract
In the casting of a rail frog having lower recesses, a mould cavity for the metal frog is formed by two impressions formed in moulding sand in bottom and top frames 24, 25, the impressions defining the external shape of the frog and the internal shape of the recesses of the frog. The impression of the external shape of the frog is formed by a pattern in the bottom frame 24, a core box 27 defining the lower recesses is then placed in this impression, the core box 27 being in a single piece and having a wall thickness less than the wall thickness of the frog. The core box 27 is filled with sand and the top frame 25 is then placed on the bottom frame 24 and filled with sand. Finally the frames are separated, the core box 27 is removed, and the frames are reassembled and provide the mould cavity for receiving the metal to be cast. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7737616A FR2411655A1 (en) | 1977-12-14 | 1977-12-14 | IMPROVEMENT IN MOLDING OF CROSSING HEARTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2010153A true GB2010153A (en) | 1979-06-27 |
| GB2010153B GB2010153B (en) | 1982-03-24 |
Family
ID=9198823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7847074A Expired GB2010153B (en) | 1977-12-14 | 1978-12-04 | Manufacture of frogs for rail equipment |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE872767A (en) |
| CH (1) | CH626821A5 (en) |
| DE (1) | DE2853821C2 (en) |
| ES (1) | ES475427A1 (en) |
| FR (1) | FR2411655A1 (en) |
| GB (1) | GB2010153B (en) |
| IT (1) | IT1109711B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079099A2 (en) * | 1981-11-06 | 1983-05-18 | Etablissements Jadot Frères Société Anonyme | Grooved rail, method of making it and rail apparatus with such a rail |
| WO2015114394A1 (en) * | 2014-02-03 | 2015-08-06 | Pálya-Szintvonal Tervezö És Szolgáltató Ktf. | Single-piece cast steel frog for a railway crossing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070001020A1 (en) * | 2004-03-01 | 2007-01-04 | Schonstein Peter J | Manufacture of top plate for an elastomeric rail fastening assembly |
| CN106400618B (en) * | 2015-07-27 | 2018-11-23 | 浙江德盛铁路器材股份有限公司 | Dual alloy integrated forged frog and its manufacturing method |
| CN111515341B (en) * | 2020-02-21 | 2023-01-31 | 中铁物总技术有限公司 | Method for improving internal quality of high manganese steel frog and reducing production cost |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1566646A (en) * | 1968-03-26 | 1969-05-09 |
-
1977
- 1977-12-14 FR FR7737616A patent/FR2411655A1/en active Granted
-
1978
- 1978-11-10 CH CH1159778A patent/CH626821A5/fr not_active IP Right Cessation
- 1978-11-27 ES ES475427A patent/ES475427A1/en not_active Expired
- 1978-12-01 IT IT69762/78A patent/IT1109711B/en active
- 1978-12-04 GB GB7847074A patent/GB2010153B/en not_active Expired
- 1978-12-13 DE DE2853821A patent/DE2853821C2/en not_active Expired
- 1978-12-14 BE BE192323A patent/BE872767A/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079099A2 (en) * | 1981-11-06 | 1983-05-18 | Etablissements Jadot Frères Société Anonyme | Grooved rail, method of making it and rail apparatus with such a rail |
| EP0079099A3 (en) * | 1981-11-06 | 1985-08-21 | Etablissements Jadot Frères Société Anonyme | Grooved rail, method of making it and rail apparatus with such a rail |
| WO2015114394A1 (en) * | 2014-02-03 | 2015-08-06 | Pálya-Szintvonal Tervezö És Szolgáltató Ktf. | Single-piece cast steel frog for a railway crossing |
Also Published As
| Publication number | Publication date |
|---|---|
| BE872767A (en) | 1979-06-14 |
| DE2853821A1 (en) | 1979-06-21 |
| FR2411655B1 (en) | 1980-08-22 |
| GB2010153B (en) | 1982-03-24 |
| ES475427A1 (en) | 1979-04-01 |
| CH626821A5 (en) | 1981-12-15 |
| FR2411655A1 (en) | 1979-07-13 |
| IT1109711B (en) | 1985-12-23 |
| DE2853821C2 (en) | 1986-07-03 |
| IT7869762A0 (en) | 1978-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |