GB154734A - Improvements relating to fluid pressure braking apparatus - Google Patents
Improvements relating to fluid pressure braking apparatusInfo
- Publication number
- GB154734A GB154734A GB2264819A GB2264819A GB154734A GB 154734 A GB154734 A GB 154734A GB 2264819 A GB2264819 A GB 2264819A GB 2264819 A GB2264819 A GB 2264819A GB 154734 A GB154734 A GB 154734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- train
- piston
- pressure
- pipe
- 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
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
- B60T15/54—Other control devices or valves characterised by definite functions for controlling exhaust from triple valve or from brake cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
154,734. Cloud, J. W. Sept. 15, 1919. Fluid-pressure.-In a graduated release valve, the train-pipe and brake-cylinder pressures are balanced against an adjustable spring through the intermediary of a lever fulcrumed at one end to a fixed point. The train-pipe pressure acts through the passage 5 on a piston 3, and the brake-cylinder exhaust from the triple valve through a passage 11 on the valve 9. The piston 3 and valve 9 bear upon a lever 7 fulcrumed at 8, against the opposite side of which bears an adjustable spring device 17. Upon an increase in train-pipe pressure for a graduated release of the brakes, the valve 9 is moved towards the right to allow the brake cylinder exhaust to escape through the port 16 until the brake cylinder pressure has been reduced to such an extent that the spring device 17 can re-close the valve 9. A portion of the resistance to the movement of the valve 9 is normally furnished by the stiffness of the diaphragm 4. Should the diaphragm crack, a larger area of the piston 3 is subjected to trainpipe pressure, and the piston is moved on to its seat so that escape of air from the train-pipe is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2264819A GB154734A (en) | 1919-09-15 | 1919-09-15 | Improvements relating to fluid pressure braking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2264819A GB154734A (en) | 1919-09-15 | 1919-09-15 | Improvements relating to fluid pressure braking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB154734A true GB154734A (en) | 1920-12-09 |
Family
ID=10182839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2264819A Expired GB154734A (en) | 1919-09-15 | 1919-09-15 | Improvements relating to fluid pressure braking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB154734A (en) |
-
1919
- 1919-09-15 GB GB2264819A patent/GB154734A/en not_active Expired
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