GB378951A - Improved driver's brake valve device - Google Patents
Improved driver's brake valve deviceInfo
- Publication number
- GB378951A GB378951A GB14921/31A GB1492131A GB378951A GB 378951 A GB378951 A GB 378951A GB 14921/31 A GB14921/31 A GB 14921/31A GB 1492131 A GB1492131 A GB 1492131A GB 378951 A GB378951 A GB 378951A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- valve
- pressure
- handle
- piston
- 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
- B60T13/26—Compressed-air systems
- B60T13/36—Compressed-air systems direct, i.e. brakes applied directly by compressed air
- B60T13/365—Compressed-air systems direct, i.e. brakes applied directly by compressed air for railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
378,951. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of McCune, J. C. ; Edgewood, Pennsylvania, U.S.A.) May 20, 1931, No. 14921. Convention date, June 18, 1930. [Class 103 (i).] In a driver's brake valve more particularly for straight air systems comprising a spring 9 the degree of compression of which is adjustable by a manually operated handle 38, the upper end of the spring 9 is provided with a cap 29 having rollers 32 pivotally mounted thereon and adapted to be engaged by a rotatable cam 34 to which the handle 38 of the valve is detachably secured, the cap is guided by a fixed stem 31 so as to be vertically but not rotationally movable. A strut member 43 is provided to transmit the movement of the cam mechanism if the spring fails. Compression of the spring 9 by the handle 38 depresses a piston 8 which closes the exhaust valve 18 by means of a spring 25 and opens the supply valve 12 which allows pressure fluid to pass from the reservoir pipe 16 though the chamber 7 to the brake cylinder supply pipe 45 until the pressure in the chamber 7 exceeds the pressure of the spring 9, when the piston 8 moves up to allow the valve 12 to reclose and obtain a lap position. The brake cylinder pressure is thus graduated and leakage is compensated by the consequent lower pressure in the chamber 7 allowing the piston 8 to descend and open the valve 12. The brake is released by reducing the pressure of the spring 9 and allowing the piston 8 to rise and lift the valve 18. The cap 29 is irregularly shaped so that only a portion of the periphery engages the guiding wall of the casing to reduce friction to a minimum. The cam 34 terminates in a tongue 36 engaging the slotted offset portion 37 of the handle 38. A pin 39 mounted in the portion 37 moves in a track 40 which prevents the handle being removed except in the full on brakes position in which position the pin is opposite an opening extending to the top of the casing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US378951XA | 1930-06-18 | 1930-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB378951A true GB378951A (en) | 1932-08-22 |
Family
ID=21896929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14921/31A Expired GB378951A (en) | 1930-06-18 | 1931-05-20 | Improved driver's brake valve device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB378951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006118694A1 (en) * | 2005-04-29 | 2006-11-09 | Bendix Commercial Vehicle Systems Llc | Control valve |
-
1931
- 1931-05-20 GB GB14921/31A patent/GB378951A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006118694A1 (en) * | 2005-04-29 | 2006-11-09 | Bendix Commercial Vehicle Systems Llc | Control valve |
| US7267413B2 (en) | 2005-04-29 | 2007-09-11 | Bendix Commercial Vehicle Systems, Llc | Control valve |
| US7814923B2 (en) | 2005-04-29 | 2010-10-19 | Bendix Commercial Vehicle Systems Llc | Control valve |
| AU2006241419B2 (en) * | 2005-04-29 | 2011-02-10 | Bendix Commercial Vehicle Systems Llc | Control valve |
| CN101166657B (en) * | 2005-04-29 | 2011-06-29 | 奔迪士商业运输系统公司 | Control valve |
| CN102173294A (en) * | 2005-04-29 | 2011-09-07 | 奔迪士商业运输系统公司 | Control valve and method for assembling control valve |
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