GB725548A - Improvements relating to fluid pressure operated variable load vehicle braking apparatus - Google Patents
Improvements relating to fluid pressure operated variable load vehicle braking apparatusInfo
- Publication number
- GB725548A GB725548A GB35020/53A GB3502053A GB725548A GB 725548 A GB725548 A GB 725548A GB 35020/53 A GB35020/53 A GB 35020/53A GB 3502053 A GB3502053 A GB 3502053A GB 725548 A GB725548 A GB 725548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- spindle
- vehicle
- chamber
- braking apparatus
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
- B60T8/1893—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution especially adapted for railway vehicles
Abstract
725,548. Variable load braking apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Dec. 16, 1953 [March 10, 1953], No. 35020/53. Class 103 (1). The invention relates to a valve assembly for variable load braking apparatus in vehicles and as shown it operates to pass air from a supply port 4 connected to the brake cylinder to an outlet port 10 connected to a variable volume chamber. Supply port 4 is connected to a supply chamber 5 and outlet port 10 to an outlet chamber 6, communication between the chambers 5 and 6 being controlled by a valve 9 urged against a seat 8 by a light spring 11. The valve may be lifted off its seat by a spindle 12 operated by thrust through a member 38' of a leafspring arm 47 having a fixed pivot at one end and connected at the other end by link 50 to a spring buckle 49 of the vehicle. Since the valve is operative to pass air from the brake cylinder into a variable volume chamber, it is arranged that the spring arm 47 shall take up a position 51 if the vehicle is empty, and is moved to a position 52 as the vehicle becomes loaded so that the thrust on spindle 12 is thus reduced and there is less tendency to open the valve 9 to pass air to the variable volume chamber. If the valve was operative for passing air directly to the brake cylinder, it would be necessary to make the valve open increasingly with load. Since the pressure in the outlet chamber 6 is operative upon the right hand side of a diaphragm member 19 secured to the valve spindle, the valve tends to close as soon as a pressure proportionate to the vehicle load has been attained. Movements of the valve spindle are damped by plates 26 and 27 secured thereto which displace liquid in chambers 24 and 25 through a restriction 22. In a further embodiment described in which the valve is used to vary the pressure in a reservoir, an exhaust port is formed by an axial bore through the valve spindle
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU725548X | 1953-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725548A true GB725548A (en) | 1955-03-02 |
Family
ID=3755222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35020/53A Expired GB725548A (en) | 1953-03-10 | 1953-12-16 | Improvements relating to fluid pressure operated variable load vehicle braking apparatus |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1134697B (en) |
| GB (1) | GB725548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079427A1 (en) * | 1981-11-13 | 1983-05-25 | Knorr-Bremse Ag | Weighing valve for vehicles |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1054232A (en) * | 1961-09-16 | |||
| GB1084104A (en) * | 1963-11-09 | 1900-01-01 | ||
| CH680120A5 (en) * | 1989-05-31 | 1992-06-30 | Oerlikon Knorr Eisenbahntech |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE718827C (en) * | 1940-12-21 | 1942-03-21 | Westinghouse Bremsen Ges M B H | Brake force regulator for air brakes, especially of truck trailers |
| DE736389C (en) * | 1942-02-17 | 1943-06-15 | Bosch Gmbh Robert | Brake force regulator for air brakes in vehicles, in particular motor vehicle trailers |
| GB602382A (en) * | 1944-11-08 | 1948-05-26 | Westinghouse Brake & Signal | Improvements in compressed air braking equipment for rail or other vehicles |
| FR964645A (en) * | 1947-07-31 | 1950-08-19 | ||
| DE807756C (en) * | 1949-07-02 | 1951-07-02 | Westinghouse Bremsen G M B H | Control valve for the automatic air pressure brake of load trailers |
| NL93560C (en) * | 1952-06-25 |
-
1953
- 1953-12-16 GB GB35020/53A patent/GB725548A/en not_active Expired
-
1954
- 1954-03-04 DE DEW13403A patent/DE1134697B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079427A1 (en) * | 1981-11-13 | 1983-05-25 | Knorr-Bremse Ag | Weighing valve for vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1134697B (en) | 1962-08-16 |
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