GB404891A - Rail deflection contact with fluid operation - Google Patents
Rail deflection contact with fluid operationInfo
- Publication number
- GB404891A GB404891A GB22314/33A GB2231433A GB404891A GB 404891 A GB404891 A GB 404891A GB 22314/33 A GB22314/33 A GB 22314/33A GB 2231433 A GB2231433 A GB 2231433A GB 404891 A GB404891 A GB 404891A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- mercury
- contact
- rail
- compressible chamber
- 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
- 239000012530 fluid Substances 0.000 title 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 3
- 229910052753 mercury Inorganic materials 0.000 abstract 3
- 230000000881 depressing effect Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/02—Electric devices associated with track, e.g. rail contacts
- B61L1/04—Electric devices associated with track, e.g. rail contacts mechanically actuated by a part of the vehicle
- B61L1/045—Electric devices associated with track, e.g. rail contacts mechanically actuated by a part of the vehicle actuated by fluid-pressure
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
404,891. Train operated contact devices. VEREINIGTE EISENBAHNSIGNALWERKE GES., Siemensstadt, Berlin. Aug. 9, 1933, No. 22314. Convention date, Nov. 8, 1932. [Class 105.] The deflection of a rail forces mercury from a compressible chamber 1 situated under the rail through a bore in a fixed piston 3, fitted with a non- return valve 8, to lift a movable cylinder 4 which has a capped stud 5 normally depressing open a contact spring 6. After the initial short movement of the cylinder 4 the contact 6, 7 therefore closes and remains closed during the further upward movement of the cylinder, and until such time as the mercury has leaked through labyrinth packing grooves 10 and a longitudinal groove 11 on the piston 3 to permit the cylinder to descend. The mercury returns from the container 13 past a one way valve 12,to the compressible chamber 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE404891X | 1932-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404891A true GB404891A (en) | 1934-01-25 |
Family
ID=6421860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22314/33A Expired GB404891A (en) | 1932-11-08 | 1933-08-09 | Rail deflection contact with fluid operation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404891A (en) |
-
1933
- 1933-08-09 GB GB22314/33A patent/GB404891A/en not_active Expired
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