GB476585A - Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles - Google Patents

Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles

Info

Publication number
GB476585A
GB476585A GB1634336A GB1634336A GB476585A GB 476585 A GB476585 A GB 476585A GB 1634336 A GB1634336 A GB 1634336A GB 1634336 A GB1634336 A GB 1634336A GB 476585 A GB476585 A GB 476585A
Authority
GB
United Kingdom
Prior art keywords
valve
brake
pressure
controller
retardation
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
Application number
GB1634336A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1634336A priority Critical patent/GB476585A/en
Publication of GB476585A publication Critical patent/GB476585A/en
Expired legal-status Critical Current

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
    • B60T8/32—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 a speed condition, e.g. acceleration or deceleration
    • B60T8/72—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 a speed condition, e.g. acceleration or deceleration responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference
    • B60T8/74—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 a speed condition, e.g. acceleration or deceleration responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference sensing a rate of change of velocity
    • 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
    • B60T8/32—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 a speed condition, e.g. acceleration or deceleration
    • B60T8/34—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 a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

476,585. Fluid - pressure brakes. KERSHAW, A. G., SIMMONS, A. W., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. June 11, 1936, No. 16343. [Class 103 (i)] In braking-apparatus for railway and like trains comprising a retardation controller on each vehicle, the braking on each vehicle is rendered substantially the same without the necessity of initial adjustment of the controllers to suit the characteristics (e.g. stroke of brake-actuating piston) of the braking apparatus on each vehicle. To achieve this result, the action of each controller is modified by the instantaneous air-pressure in the brakecylinder. As shown, the air from a supplementary reservoir or from the train pipe enters the controller at 8, passes a valve 7, and is supplied by a pipe 9 to the brake-cylinder. The space 2 is thus filled with air at brakecylinder pressure, which presses a piston 12 to the left against a spring 13. The self-lapping valve 11 follows the piston and tends to close the valve 7 through the rocking link 5. The brake-cylinder pressure in the early stages of the process will be different for different vehicles and thus (assuming the controller to be made from standard parts) the valves 7 will be at different distances from their seats. At a certain retardation of the train as a whole the pendulum 1 in each controller swings away from its stop against the action of the spring 3 and moves the point 4 on the lever 5. The valve 11 remains in the lapping position and the valve 7 is therefore brought down on its seat. Any further increase in retardation causes the valve 11 to open and relieve the pressure in the brake-cylinder. This relieving action occurs at different values of the retardation in different vehicles according to the initial setting of the valve 7 determined by the brake-cylinder pressure. This is made possible by the long travel of the valve. Ultimately all the brake-cylinders are exhausted slightly in unison as the train comes to a standstill and the brakes " bite " into the wheels. A retaining valve 15 may be provided to prevent the pressure from falling below a given value.
GB1634336A 1936-06-11 1936-06-11 Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles Expired GB476585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1634336A GB476585A (en) 1936-06-11 1936-06-11 Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1634336A GB476585A (en) 1936-06-11 1936-06-11 Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles

Publications (1)

Publication Number Publication Date
GB476585A true GB476585A (en) 1937-12-13

Family

ID=10075567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1634336A Expired GB476585A (en) 1936-06-11 1936-06-11 Improvements relating to retardation controllers for fluid pressure braking apparatus for railway and like vehicles

Country Status (1)

Country Link
GB (1) GB476585A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475483A1 (en) * 1980-02-08 1981-08-14 Thyssen Industrie BRAKE FOR VEHICLES ON RAILS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475483A1 (en) * 1980-02-08 1981-08-14 Thyssen Industrie BRAKE FOR VEHICLES ON RAILS
US4359247A (en) * 1980-02-08 1982-11-16 Thyssen Industrie Ag Brake for rail vehicles

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