GB243827A - Improvements relating to replacers or reversers for railway signals and the like - Google Patents
Improvements relating to replacers or reversers for railway signals and the likeInfo
- Publication number
- GB243827A GB243827A GB2137524A GB2137524A GB243827A GB 243827 A GB243827 A GB 243827A GB 2137524 A GB2137524 A GB 2137524A GB 2137524 A GB2137524 A GB 2137524A GB 243827 A GB243827 A GB 243827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- rod
- casing
- signal
- return
- 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
- B61L21/00—Station blocking between signal boxes in one yard
- B61L21/04—Electrical locking and release of the route; Electrical repeat locks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
- Electromagnets (AREA)
Abstract
243,827. Siemens Bros. & Co., Ltd., and Baker, E. W. Sept. 10, 1924. Slots, reversers, and like apparatus.-In a replacer or reverser of the kind in which a lever forming the armature of an electromagnet constitutes a coupling member the magnet acts in a direction parallel with that of the force to be counterbalanced thereby. The signal rod 3 carries a casing 1, 2 in which an electromagnet 7 is fixed and its armature 8 is pivoted. The operating rod 4 passes slidably through the casing and carries a casting 18 with a recess in which a roller 21 is mounted. Upward movement of the rod 4 causes roller 21 to bear against a part 16 of the armature at a point 25, Fig. 4, to the left of a vertical line 26 through the armature pivot 12, so that the armature is moved in clockwise direction clear of the roller unless held by attraction of the magnet. If the magnet be de-energized, continued movement of rod 4 does not move the casing, but, if energized, the attracted armature forms an abutment by which the rod 4 moves the casing and the signal rod 3, placing the signal at " clear." On subsequent de-energization of the magnet, release of armature 8 allows the signal to return to " danger " under gravity. Casting 18 carries a projection 23, or, according to the Provisional Specification, a roller, engaging a projection 17 on the armature, on downward movement of rod 4. This serves to return the armature to the attracted position and, with the armature in that position, serves to return rod 3 positively to " danger " position. Clockwise movement of armature 8 is limited by a stop 27. The upper end of casting 18 is formed as a piston 20 with leather packing cups working in a cylindrical part 5 of the casing communicating with the rest of the casing by a duct having a pin valve 28. The arrangement serves as a dashpot damping the return to " danger " of the released signal. The armature 8 may be provided with a buffer action spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2137524A GB243827A (en) | 1924-09-10 | 1924-09-10 | Improvements relating to replacers or reversers for railway signals and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2137524A GB243827A (en) | 1924-09-10 | 1924-09-10 | Improvements relating to replacers or reversers for railway signals and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB243827A true GB243827A (en) | 1925-12-10 |
Family
ID=10161858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2137524A Expired GB243827A (en) | 1924-09-10 | 1924-09-10 | Improvements relating to replacers or reversers for railway signals and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB243827A (en) |
-
1924
- 1924-09-10 GB GB2137524A patent/GB243827A/en not_active Expired
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