GB1241775A - Means for indicating the state of fluid-operated brakes - Google Patents
Means for indicating the state of fluid-operated brakesInfo
- Publication number
- GB1241775A GB1241775A GB2738069A GB2738069A GB1241775A GB 1241775 A GB1241775 A GB 1241775A GB 2738069 A GB2738069 A GB 2738069A GB 2738069 A GB2738069 A GB 2738069A GB 1241775 A GB1241775 A GB 1241775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brakes
- fluid pressure
- area
- brake
- indicating
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
- F16D66/025—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness sensing the position of parts of the brake system other than the braking members, e.g. limit switches mounted on master cylinders
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
1,241,775. Brake indicators. WESTING- HOUSE BRAKE AND SIGNAL CO. Ltd. 2 March, 1970 [29 May, 1969], No. 27380/69. Heading F2E. An indicating device for fluid pressure brakes has a first area 13 having a different visual characteristics from a second area 14, the first area being illuminated by a bulb 16 when the brakes are in the "off position" and the second area being illuminated when the stroke of the brake exceeds a predetermined valve indicating that the brakes require adjusting. In the embodiment shown fluid pressure is supplied via a brake valve 6 from a reservoir 5 to a spring applied fluid pressure released actuator 1, the piston 3 of which holds the brakes in the off position, and has a tube 21 the cam face 20 of which actuates a switch 19 thereby illuminating bulb 16 the device being held in the "off position" shown by fluid pressure also acting through a line 8 at a piston 10 in a cylinder 9. When the brakes are moved to their parked position fluid pressure is released from actuator 1 and cylinder 9, the leftward movement of piston 3 causing switch 19 to engage a detent 23 and is thereby deactivated. On subsequent movement leftwardly indicating that the brake requires adjustment switch 19 engages cam face 24 thereby illuminating the lesser opacity area 14. In another embodiment the brakes are fluid pressure operated, area 13 then representing the "off position" where air is released from the brake actuator 1. In an embodiment in which not all brakes are used for parking switches 19 are so arranged that bulb 16 is illuminated by a switch associated with either parking or the remaining brakes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2738069A GB1241775A (en) | 1969-05-29 | 1969-05-29 | Means for indicating the state of fluid-operated brakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2738069A GB1241775A (en) | 1969-05-29 | 1969-05-29 | Means for indicating the state of fluid-operated brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1241775A true GB1241775A (en) | 1971-08-04 |
Family
ID=10258674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2738069A Expired GB1241775A (en) | 1969-05-29 | 1969-05-29 | Means for indicating the state of fluid-operated brakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1241775A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2446964A1 (en) * | 1979-01-18 | 1980-08-14 | Knorr Bremse Gmbh | Vehicle brake cylinder stroke indicator - has switch in wall over which diaphragm rolls operated via tappet |
GB2164494A (en) * | 1984-08-15 | 1986-03-19 | Automotive Products Plc | Hydraulic cylinder switch |
US6006868A (en) * | 1996-11-14 | 1999-12-28 | Technical Services And Marketing Inc. | System for monitoring brake status on a rail car |
-
1969
- 1969-05-29 GB GB2738069A patent/GB1241775A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2446964A1 (en) * | 1979-01-18 | 1980-08-14 | Knorr Bremse Gmbh | Vehicle brake cylinder stroke indicator - has switch in wall over which diaphragm rolls operated via tappet |
GB2164494A (en) * | 1984-08-15 | 1986-03-19 | Automotive Products Plc | Hydraulic cylinder switch |
US6006868A (en) * | 1996-11-14 | 1999-12-28 | Technical Services And Marketing Inc. | System for monitoring brake status on a rail car |
AU739311B2 (en) * | 1996-11-14 | 2001-10-11 | Technical Services And Marketing, Inc. | System for monitoring brake status on a rail car |
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