GB436988A - Improvements relating to vacuum braking apparatus - Google Patents
Improvements relating to vacuum braking apparatusInfo
- Publication number
- GB436988A GB436988A GB2354034A GB2354034A GB436988A GB 436988 A GB436988 A GB 436988A GB 2354034 A GB2354034 A GB 2354034A GB 2354034 A GB2354034 A GB 2354034A GB 436988 A GB436988 A GB 436988A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- brake cylinder
- brake
- train pipe
- air
- 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)
- Braking Systems And Boosters (AREA)
Abstract
436,988. Vacuum brakes. LECLAIR, L. J., BRACKENBURY, A. G., and WESTING- HOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Aug. 15, 1934, No. 23540. [Class 103 (i)] A local venting valve for vacuum brakes which admits air to the brake cylinder through a filter comprises a valve 17 which opens a large communication between the train pipe and the brake cylinder if the filter becomes choked. The valve 17 also serves the purpose of a non-return valve between the train pipe and brake cylinder through which air is drawn on brake release thus ensuring by frequent operation that it shall not become stuck. The operation of the local venting valve comprising a ball valve 13 operated by a diaphragm 6, is the same as that of the valve described in Specification 431,081. If the filter connected to passage 25 becomes choked, preventing admission of air, on brake application, to chambers 9, 14, 5 and the lower chamber 7 of the brake cylinder the valve 17 is raised by the increased train pipe pressure acting on an annular surface 23 of the valve, thus opening a large passage 21 connecting the train pipe and the brake cylinder. The brake cylinder chamber 7 is evacuated, when the brakes are released, past the valve 17 and a valve 16 and also past a narrow space 24 between the valve 17 and the wall of the chamber 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2354034A GB436988A (en) | 1934-08-15 | 1934-08-15 | Improvements relating to vacuum braking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2354034A GB436988A (en) | 1934-08-15 | 1934-08-15 | Improvements relating to vacuum braking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB436988A true GB436988A (en) | 1935-10-22 |
Family
ID=10197291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2354034A Expired GB436988A (en) | 1934-08-15 | 1934-08-15 | Improvements relating to vacuum braking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB436988A (en) |
-
1934
- 1934-08-15 GB GB2354034A patent/GB436988A/en not_active Expired
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