ZA776231B - Railroad frogs - Google Patents
Railroad frogsInfo
- Publication number
- ZA776231B ZA776231B ZA00776231A ZA776231A ZA776231B ZA 776231 B ZA776231 B ZA 776231B ZA 00776231 A ZA00776231 A ZA 00776231A ZA 776231 A ZA776231 A ZA 776231A ZA 776231 B ZA776231 B ZA 776231B
- Authority
- ZA
- South Africa
- Prior art keywords
- railroad frogs
- frogs
- railroad
- 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
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/12—Fixed frogs made of one part or composite
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/779,620 US4081162A (en) | 1977-03-21 | 1977-03-21 | Railroad frogs |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA776231B true ZA776231B (en) | 1978-06-28 |
Family
ID=25116981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00776231A ZA776231B (en) | 1977-03-21 | 1977-10-19 | Railroad frogs |
Country Status (5)
Country | Link |
---|---|
US (1) | US4081162A (xx) |
BR (1) | BR7800054A (xx) |
CA (1) | CA1081670A (xx) |
MX (1) | MX145347A (xx) |
ZA (1) | ZA776231B (xx) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362282A (en) * | 1979-09-21 | 1982-12-07 | Abex Corporation | Railroad frogs |
US4824055A (en) * | 1987-02-02 | 1989-04-25 | Nortrak Limited | Railroad FROG |
US5393019A (en) * | 1993-05-04 | 1995-02-28 | Ortiz-Rivas; Arturo A. | Railroad turnout frog with continuous running surface |
BR9501143A (pt) * | 1994-03-25 | 1995-10-24 | Abc Rail Products Corp | Peça fundida de cruzamento para estrada de ferro |
KR102306154B1 (ko) * | 2020-03-17 | 2021-09-28 | 주식회사 세안 | 철도 분기기의 플랜지 베어링 크로싱 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2024566A (en) * | 1933-11-07 | 1935-12-17 | Eugene W Caruthers | Railway crossing or like track structure |
US2346377A (en) * | 1943-02-18 | 1944-04-11 | American Brake Shoe Co | Railway crossing |
US3263076A (en) * | 1963-10-07 | 1966-07-26 | American Brake Shoe Co | Railroad frogs |
-
1977
- 1977-03-21 US US05/779,620 patent/US4081162A/en not_active Expired - Lifetime
- 1977-10-19 ZA ZA00776231A patent/ZA776231B/xx unknown
- 1977-10-24 CA CA289,348A patent/CA1081670A/en not_active Expired
- 1977-10-28 MX MX171137A patent/MX145347A/es unknown
-
1978
- 1978-01-05 BR BR7800054A patent/BR7800054A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
US4081162A (en) | 1978-03-28 |
CA1081670A (en) | 1980-07-15 |
BR7800054A (pt) | 1978-10-10 |
MX145347A (es) | 1982-01-27 |
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