GB1199354A - Railway Track Signalling System - Google Patents
Railway Track Signalling SystemInfo
- Publication number
- GB1199354A GB1199354A GB47393/68A GB4739368A GB1199354A GB 1199354 A GB1199354 A GB 1199354A GB 47393/68 A GB47393/68 A GB 47393/68A GB 4739368 A GB4739368 A GB 4739368A GB 1199354 A GB1199354 A GB 1199354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- track circuit
- track
- frequencies
- phase
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
- B61L3/221—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using track circuits
- B61L3/222—Arrangements on the track only
Abstract
1,199,354. Automatic train control; electrically continuous track. WESTINGHOUSE ELECTRIC CORP. 7 Oct., 1968 [29 Nov., 1967], No. 47393/68. Heading B7H. In an automatic train control arrangement in which continuous track 10 is divided into a series of track circuits by shorting bars 16 and in which speed information is transmitted to a train by a binary coded signal modulated on the track circuit signal, the number of different track circuit signal frequencies required to operate the arrangement safely is reduced by making the track circuit receivers also selective to the phase of the binary coded modulating signal. As shown in Fig. 2, track circuit signals of three frequencies f 1 , f 2 , and f 3 are used and applied in repeated sequence to succeeding track circuits, in addition each track circuit signal is modulated by a binary speed signal, e.g. 101011 representing a required speed of 50 m.p.h., the phase of which is varied to provide the six-phase different modulating signals shown. The signal applied to modulate a track circuit signal is also applied to the associated track circuit receiver for comparison purposes. The train carried receiver 28 is responsive to any of the frequencies f 1 -f 3 and provides a control signal indicative of required speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68646867A | 1967-11-29 | 1967-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1199354A true GB1199354A (en) | 1970-07-22 |
Family
ID=24756415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47393/68A Expired GB1199354A (en) | 1967-11-29 | 1968-10-07 | Railway Track Signalling System |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3532877A (en) |
| JP (1) | JPS4819647B1 (en) |
| BE (1) | BE724428A (en) |
| CH (1) | CH499420A (en) |
| DE (1) | DE1804225C3 (en) |
| FR (1) | FR1598233A (en) |
| GB (1) | GB1199354A (en) |
| SE (1) | SE334383B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2051914A5 (en) * | 1969-07-01 | 1971-04-09 | Trt Telecom Radio Electr | |
| US3958781A (en) * | 1975-01-29 | 1976-05-25 | Westinghouse Electric Corporation | Train vehicle protection apparatus including signal block occupancy determination |
| US4410154A (en) * | 1979-06-25 | 1983-10-18 | Westinghouse Electric Corp. | Transit vehicle brake control apparatus and method |
| US4387870A (en) * | 1981-04-29 | 1983-06-14 | Westinghouse Electric Corp. | Transit vehicle shunt determination |
| US4471929A (en) * | 1982-03-01 | 1984-09-18 | Westinghouse Electric Corp. | Transit vehicle signal apparatus and method |
| JPS59180792U (en) * | 1983-05-20 | 1984-12-03 | ヤマト科学株式会社 | Distilled water production equipment |
| US4651070A (en) * | 1985-08-01 | 1987-03-17 | Westinghouse Electric Corp. | Transit vehicle start-up propulsion motor control apparatus and method |
| GB2193588B (en) * | 1986-08-04 | 1990-07-25 | Gec General Signal Ltd | Track circuit signalling arrangement |
| US5271584A (en) * | 1992-03-02 | 1993-12-21 | General Railway Signal | Pulse code railway signalling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3328580A (en) * | 1964-07-14 | 1967-06-27 | Westinghouse Air Brake Co | Rapid transit speed control system |
-
1967
- 1967-11-29 US US686468A patent/US3532877A/en not_active Expired - Lifetime
-
1968
- 1968-10-07 GB GB47393/68A patent/GB1199354A/en not_active Expired
- 1968-10-21 DE DE1804225A patent/DE1804225C3/en not_active Expired
- 1968-11-08 CH CH1672568A patent/CH499420A/en not_active IP Right Cessation
- 1968-11-25 BE BE724428D patent/BE724428A/xx unknown
- 1968-11-29 SE SE16377/68A patent/SE334383B/xx unknown
- 1968-11-29 JP JP43087093A patent/JPS4819647B1/ja active Pending
- 1968-11-29 FR FR1598233D patent/FR1598233A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1598233A (en) | 1970-07-06 |
| JPS4819647B1 (en) | 1973-06-15 |
| US3532877A (en) | 1970-10-06 |
| CH499420A (en) | 1970-11-30 |
| DE1804225A1 (en) | 1969-07-03 |
| DE1804225B2 (en) | 1975-03-20 |
| SE334383B (en) | 1971-04-26 |
| DE1804225C3 (en) | 1975-11-13 |
| BE724428A (en) | 1969-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |