GB190519568A - Improvements in Electrically Controlled Semaphore Signals for Railways. - Google Patents
Improvements in Electrically Controlled Semaphore Signals for Railways.Info
- Publication number
- GB190519568A GB190519568A GB190519568DA GB190519568A GB 190519568 A GB190519568 A GB 190519568A GB 190519568D A GB190519568D A GB 190519568DA GB 190519568 A GB190519568 A GB 190519568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- railways
- electrically controlled
- bell
- crank
- 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
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
19,568. Holt, F. B., and Wallis, A. Sept. 28. Switches. - The switch arm 13 of a change-over switch for use in railway signalling is moved in one direction by means of a projection 16 on the arm of a bell-crank 17 which is connected by a link 18 to a bell-crank as shown. This is moved by a projection on another bellcrank, which is operated by the hand-lever 9. The final position of the links is shown in full lines, the dotted lines showing an intermediate position. The switch is held in its operative position by the detent 19, which may be tripped by the armature 30 of the magnet 28 under control of the dash-pot 33. The removal of the detent allows the spring 31 to return the switch arm against the terminals 1, 5, independently of the other links 16, 17 &c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190519568T | 1905-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190519568A true GB190519568A (en) | 1906-09-06 |
Family
ID=32199813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190519568D Expired GB190519568A (en) | 1905-09-28 | 1905-09-28 | Improvements in Electrically Controlled Semaphore Signals for Railways. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190519568A (en) |
-
1905
- 1905-09-28 GB GB190519568D patent/GB190519568A/en not_active Expired
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