GB279718A - Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehicles - Google Patents
Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehiclesInfo
- Publication number
- GB279718A GB279718A GB1126127A GB1126127A GB279718A GB 279718 A GB279718 A GB 279718A GB 1126127 A GB1126127 A GB 1126127A GB 1126127 A GB1126127 A GB 1126127A GB 279718 A GB279718 A GB 279718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- steam
- brake
- train
- pipe
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/048—Controlling pressure brakes of railway vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
279,718. Gresham, H. E., and Kiernan, G. April 27, 1927. Fluid-pressure.-Relates to means such as described in Specification 112,549 whereby a steam brake on a locomotive for example may be operated simultaneously with vacuum brakes on the rest of the train while permitting independent hand operation of the steam brake. The apparatus comprises main and pilot steam supply valves d, e operated by an extension of the exhaust valve f the stem g of which is connected to a lever h. This lever is connected to a piston i working in a cylinder the lower part of which is in open connection at j with the vacuum train pipe while the upper part and a reservoir con. nected thereto at k communicates with the trainpipe by a non-return valve m. Thus when the pressure in the train-pipe is increased to apply the train brakes, the piston i is raised thereby closing the exhaust valve f and pipe c and opening first the pilot valve e and then, by a cross-pin e', the main steam supply valve d to admit steam to the locomotive brake cylinder by the pipes a, b. Hand operation of the steam brake is effected by the lever u which acts through a spring v upon a pivoted arm o adapted to engage the lever h. The lever u carries a detent x for engaging a notched quadrant w whereby the lever may be held in adjusted position to determine the degree of steam pressure applied to the brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1126127A GB279718A (en) | 1927-04-27 | 1927-04-27 | Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1126127A GB279718A (en) | 1927-04-27 | 1927-04-27 | Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB279718A true GB279718A (en) | 1927-11-03 |
Family
ID=9982965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1126127A Expired GB279718A (en) | 1927-04-27 | 1927-04-27 | Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB279718A (en) |
-
1927
- 1927-04-27 GB GB1126127A patent/GB279718A/en not_active Expired
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