GB528747A - Improvements relating to electric remote control systems - Google Patents
Improvements relating to electric remote control systemsInfo
- Publication number
- GB528747A GB528747A GB13057/39A GB1305739A GB528747A GB 528747 A GB528747 A GB 528747A GB 13057/39 A GB13057/39 A GB 13057/39A GB 1305739 A GB1305739 A GB 1305739A GB 528747 A GB528747 A GB 528747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- codes
- transmission
- station
- group
- long
- 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
- 230000005540 biological transmission Effects 0.000 abstract 5
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
- B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
- B61L7/08—Circuitry
- B61L7/083—Common line wire control using currents of different amplitudes, polarities, frequencies, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
528,747. Electric control and signalling systems. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. May 2, 1939, No. 13057. Convention date, Aug. 3, 1938. Drawings to Specification. [Class 40 (i)] In a centralized control and supervision system for apparatus located at a plurality of remote points and particularly for railway signals and points at different stations along a track, control and supervision are effected over a single line circuit by time-coded impulses generated by relays. Means are provided for storing codes for subsequent transmission as long as the line wire is in use and for maintaining an established direction of transmission to or from the central office as long as there are codes stored for transmission in that direction, the stored codes being transmitted in a group in a given order of code superiority. Transmission of any code which becomes stored after the transmission of a group of codes has been initiated is prevented until all codes of the group have been delivered. Normally the line wire is energized by positive current, but code sending from any station is effected by long and short impulses of reverse polarity. The operation of the system is similar to that of the system described in Specification 528,745, except that for effecting a station selection and the control of apparatus thereat chains of relays at the station are firstly operated until a particular station is selected and then the chain at the selected station is released and reoperated to effect the desired operations.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US528747XA | 1938-08-03 | 1938-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB528747A true GB528747A (en) | 1940-11-06 |
Family
ID=21980462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13057/39A Expired GB528747A (en) | 1938-08-03 | 1939-05-02 | Improvements relating to electric remote control systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB528747A (en) |
-
1939
- 1939-05-02 GB GB13057/39A patent/GB528747A/en not_active Expired
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