GB431081A - Improvements in and relating to fluid pressure braking apparatus - Google Patents
Improvements in and relating to fluid pressure braking apparatusInfo
- Publication number
- GB431081A GB431081A GB602834A GB602834A GB431081A GB 431081 A GB431081 A GB 431081A GB 602834 A GB602834 A GB 602834A GB 602834 A GB602834 A GB 602834A GB 431081 A GB431081 A GB 431081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- diaphragm
- chamber
- train pipe
- pressure
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/465—Vacuum systems for railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
431,081. Fluid -- pressure brakes. LECLAIR, L. J., BRACKENBURY, A. G., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Feb. 23, 1934, No. 6028. [Class 103 (i)] A vacuum brake quick application valve adapted to admit atmospheric air to the train pipe and brake cylinder, comprises a diaphragm 5 subject on one hand to the vacuum in a chamber 2 connected by a port 3 to the train pipe 10, and on the other hand to the vacuum in a chamber 4 connected to the lower chamber of the brake cylinder by a passage 6, by a port 8 to a chamber 7, and by a port 9 to the train pipe and to which atmospheric air is adapted to be admitted by a valve 13 operated by the diaphragm 5. Admission of air to the train pipe on brake application raises the diaphragm 5 as air enters the chamber 2 below the diaphragm through the port 3 more quickly than it enters the chamber 4 above the diaphragm through ports 8, 9 and the chamber 7. Air is admitted to the brake cylinder through the port 8 and to the train pipe through the port 9. The pressure finally balances on each side of the diaphragm which falls, closing the valve 13. Air now passes from the train pipe to the brake cylinder by ports 9, 8. In order to give an initial rapid flow through the port 9 this port is replaced by a large and a small port, the large port being eventually closed by a valve operated by the pressure in the conduit 10 opposed to atmospheric pressure, or a valve closing the large port is first opened by atmospheric air admitted to the chamber 7 and subsequently closed when the pressure in the train pipe has risen. The diaphragm 5 may be arranged to engage a depending flange surrounding the port 8 and thus close this port, so that at the head of the train where the rise of pressure in the train pipe is rapid the diaphragm will rise sufficiently to close this port and restrict the flow, and at the rear of the train where the rise of pressure is slower the flow will not be so restricted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602834A GB431081A (en) | 1934-02-23 | 1934-02-23 | Improvements in and relating to fluid pressure braking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602834A GB431081A (en) | 1934-02-23 | 1934-02-23 | Improvements in and relating to fluid pressure braking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB431081A true GB431081A (en) | 1935-07-01 |
Family
ID=9807091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB602834A Expired GB431081A (en) | 1934-02-23 | 1934-02-23 | Improvements in and relating to fluid pressure braking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB431081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143845B (en) * | 1957-07-26 | 1963-02-21 | Westinghouse Brake & Signal | Control valve for a railway vacuum brake |
-
1934
- 1934-02-23 GB GB602834A patent/GB431081A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143845B (en) * | 1957-07-26 | 1963-02-21 | Westinghouse Brake & Signal | Control valve for a railway vacuum brake |
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