GB191304485A - Improvements in and relating to Railway Signalling Apparatus. - Google Patents
Improvements in and relating to Railway Signalling Apparatus.Info
- Publication number
- GB191304485A GB191304485A GB191304485DA GB191304485A GB 191304485 A GB191304485 A GB 191304485A GB 191304485D A GB191304485D A GB 191304485DA GB 191304485 A GB191304485 A GB 191304485A
- Authority
- GB
- United Kingdom
- Prior art keywords
- danger
- plunger
- contacts
- track
- contact
- 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
- 230000011664 signaling Effects 0.000 title 1
- 238000010276 construction Methods 0.000 abstract 2
- 230000000994 depressogenic effect Effects 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000000881 depressing effect Effects 0.000 abstract 1
- 230000003137 locomotive effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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 train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
4485. Jefcoate, H. J. Feb. 21. Track apparatus actuating signals on trains and for stopping trains.-Modifications of the apparatus described in Specification 2109/02 comprise the mounting of the track contacts overhead with a protective housing and a detailed construction of the ' danger ' verticallysliding engine contact. The track contacts A, B, Fig. 3, comprise long bars mounted on links on the cross girders 5 of a light girder gantry, and have a protective housing 9. The contacts A, B, giving ' safety ' and ' danger ' indications respectively, are interconnected to balance one another by a double-armed crank device 11, 12, Fig. 4. The ' danger ' bar B is slightly the heavier, so that in case of breakage of the operating connexions, the ' danger ' indication is given. The engine apparatus, which is of the kind described in the above-mentioned Specification, has three contacts 1, 2, 3, Fig. 3, of which the two 1, 2 are operative for safety ' and ' danger ' indications at ' distant' signals. Additional track contacts may be employed at ' home ' signals to operate the contacts 2, 3 to give ' danger ' and ' safety ' indications. A particular construction of the ' danger ' contact 2 is shown in Figs. 6 and 7, in which the roller 2<a> engaging the track contact is carried by a cylindrical plunger 2 sliding in a casing 24. Balls 26 fit in grooves 27, 28 in the plunger 2 and the casing 24 to form an antifriction bearing, and a spring 29 restores the plunger after operation. Electric contacts 30 are normally in contact with an insulating-portion 30<a> of the plunger, but are connected on depression of the plunger by the portion 2<b>. The engine circuit thus made operates the engine indicating - apparatus. A roller 22 on the plunger operates the whistle and brake apparatus, such as is described in Specification 6951/11, by depressing a cable connexion 23. If the train passes a ' danger ' signal at high speed, the ' danger plunger is depressed and held in the depressed condition by a catch 32, Fig. 7, the releasing handle 33 of which can preferably only be operated from outside the cab of the locomotive. The semaphores may be mounted on posts supported on the gantry.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191304485T | 1913-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191304485A true GB191304485A (en) | 1913-12-04 |
Family
ID=34359066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191304485D Expired GB191304485A (en) | 1913-02-21 | 1913-02-21 | Improvements in and relating to Railway Signalling Apparatus. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191304485A (en) |
-
1913
- 1913-02-21 GB GB191304485D patent/GB191304485A/en not_active Expired
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