GB364358A - Improvements relating to automatic traffic signals - Google Patents
Improvements relating to automatic traffic signalsInfo
- Publication number
- GB364358A GB364358A GB200431A GB200431A GB364358A GB 364358 A GB364358 A GB 364358A GB 200431 A GB200431 A GB 200431A GB 200431 A GB200431 A GB 200431A GB 364358 A GB364358 A GB 364358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuses
- switch
- electromagnet
- switches
- leads
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
364,358. Road signals. CHANCE BROS. & CO., Ltd. and SPAINK, J. H. ABBINK-, Lighthouse Works, West Smethwick, Staffordshire. Jan. 21, 1931, Nos. 2004 and 2005. [Class 118 (ii).] An amber coloured or other warning light is brought into action at some predet rmined time such as in the night or when a failure occurs in he main signal system to show that the signal is not working. The current is supplied to the signal system by leads a, b from terminals d, e to which are adjacent fuses f, g. Conductors h supply current to the various parts of the signal apparatus. The warning lights i are in a circuit i containing fuses k, l and connected to the terminals d, e or between these and the fuses f, g. The circuit contains a switch m normally held open by an electromagnet n connected across the main. leads on the signal system side of the fuses f, g. On one of the fuses f, g blowing the elec romagnet n is no longer excited and the lamps i come on. In addition or alternatively the leads a, bare provided with switches o, p or with one only. On the terminal side of the fuses f, g is a circuit containing an electromagnet r and a contact device s controlled by a clock which opens and closes the contact s at certain times. A switch t in parallel with the switch m is actuated by the electromagnet r. When the contact s is closed, the electromagnet r opens the switches o, p putting the signals out of action and closes the switch t to bring the warning light i'into action. On opening the contact device s, the switches o, p are closed and the switch t opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB200431A GB364358A (en) | 1931-01-21 | 1931-01-21 | Improvements relating to automatic traffic signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB200431A GB364358A (en) | 1931-01-21 | 1931-01-21 | Improvements relating to automatic traffic signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB364358A true GB364358A (en) | 1932-01-07 |
Family
ID=9731895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB200431A Expired GB364358A (en) | 1931-01-21 | 1931-01-21 | Improvements relating to automatic traffic signals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB364358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2244836A (en) * | 1990-06-08 | 1991-12-11 | Gec Traffic Automation | Traffic light system |
-
1931
- 1931-01-21 GB GB200431A patent/GB364358A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2244836A (en) * | 1990-06-08 | 1991-12-11 | Gec Traffic Automation | Traffic light system |
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