GB1007597A - Improvements relating to automatic train control for automatic braking apparatus - Google Patents

Improvements relating to automatic train control for automatic braking apparatus

Info

Publication number
GB1007597A
GB1007597A GB840462A GB840462A GB1007597A GB 1007597 A GB1007597 A GB 1007597A GB 840462 A GB840462 A GB 840462A GB 840462 A GB840462 A GB 840462A GB 1007597 A GB1007597 A GB 1007597A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
pressure
switch
contacts
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
GB840462A
Inventor
Arthur William Simmons
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 GB840462A priority Critical patent/GB1007597A/en
Publication of GB1007597A publication Critical patent/GB1007597A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/66Electrical control in fluid-pressure brake systems
    • B60T13/665Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T7/00Brake-action initiating means
    • B60T7/12Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/14Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated upon collapse of driver

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

1,007,597. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 20, 1963 [March 5, 1962], No. 8404/62. Heading F2F. An automatic train control system for use with deadman automatic brake apparatus has a vent valve 8 which is the deadman's application valve, means 32 for operating the latter after a time delay, a holding circuit 30 for energizing this means, and a pneumatic switch 18 allowing re-energization 1 of the holding circuit up to the point of operation of the valve 8 but not afterwards. Normally, wire 28 is energized, switch 29 made, and holding circuit 30 and magnet valve 32 energized. The latter holds an exhaust valve 33 closed and an inlet valve 34 open which allows a compressed air supply at 35 to charge a timing reservoir 37. The pressure of the reservoir acts on top of piston 11, which overcoming its spring loading, holds the valve 8 on its seat to close off connection 7 from outlet 13. Thus brake pipe 2 is normally charged with air. The piston 19 is held up against the effort of spring 17 by brake pipe pressure thus closing switch contacts 20. Upon an adverse signal being received from the track, wire 28 becomes de-energized to cause relay 30 to break contacts 29. Magnet valve 32 is de-energized which causes inlet valve 34 to close and exhaust valve 33 to open. Timing reservoir 37 drops in pressure via choke 36, which pressure registers above piston 11. After a predetermined time, when this pressure has been reduced sufficiently, the spring loading will lift the piston 11 and allow brake pipe 2 vent to atmosphere causing a brake application. The brake pipe pressure drop will cause the spring 17 to move the piston 19 downwards to break the contacts 20. Prior to the operation of piston 11 the driver could cancel the signal by energizing the wire 28, which in turn would energize the holding relay 30 and magnet valve 32 via contacts 20 to return the valves 33, 34 to their normal positions allowing reservoir 37 to be recharged. After the operation of the piston 11 the signal cannot be cancelled, since the switch contacts 20 are broken, until pneumatic switches 22 or 24, which are alternatives, connect contacts 23 or 25. Switch 22 operates to close contact 23 after a predetermined drop in brake pipe pressure and switch 24 operates to close contacts 25 after a predetermined time which is determined by the reservoir 1 venting through choke 4 to the brake pipe. In modifications, the switch 18 is arranged to operate on the difference of pressure across the valve 8 and the pressure in pipe 2 is used to operate a further deadman's valve. In a modified switch 18 the pipe 6 is connected to the upper chamber and the lower chamber is connected to a reservoir which is charged by a feed groove in the piston that is closed on operation of the switch. An alternative to the feed groove is to place a choke between the reservoir and pipe 6, or across the piston, or through the stem of the piston, which choke can be adjusted so that contacts 20 are closed after the predetermined time.
GB840462A 1962-03-05 1962-03-05 Improvements relating to automatic train control for automatic braking apparatus Expired GB1007597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB840462A GB1007597A (en) 1962-03-05 1962-03-05 Improvements relating to automatic train control for automatic braking apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB840462A GB1007597A (en) 1962-03-05 1962-03-05 Improvements relating to automatic train control for automatic braking apparatus

Publications (1)

Publication Number Publication Date
GB1007597A true GB1007597A (en) 1965-10-13

Family

ID=9851891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB840462A Expired GB1007597A (en) 1962-03-05 1962-03-05 Improvements relating to automatic train control for automatic braking apparatus

Country Status (1)

Country Link
GB (1) GB1007597A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2452640C1 (en) * 2011-01-12 2012-06-10 Николай Васильевич Маликов Method of electric air distributor operation
RU2459731C1 (en) * 2010-12-27 2012-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) Railway vehicle braking clamp electrically drive air control valve
RU2633664C1 (en) * 2016-06-14 2017-10-16 Открытое акционерное общество МТЗ ТРАНСМАШ Electro-pneumatic brake with digital control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2459731C1 (en) * 2010-12-27 2012-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) Railway vehicle braking clamp electrically drive air control valve
RU2452640C1 (en) * 2011-01-12 2012-06-10 Николай Васильевич Маликов Method of electric air distributor operation
RU2633664C1 (en) * 2016-06-14 2017-10-16 Открытое акционерное общество МТЗ ТРАНСМАШ Electro-pneumatic brake with digital control

Similar Documents

Publication Publication Date Title
GB1333342A (en) Relay valve for electro-pneumatic vehicle braking system
GB1306708A (en) Fluid pressure operable brake control valve apparatus
US2985489A (en) Tractor-trailer brake system
GB1007597A (en) Improvements relating to automatic train control for automatic braking apparatus
US2937907A (en) Auxiliary quick service venting mechanism
US4068902A (en) Adaptive braking modulator with electrically activated relay valve
GB1115177A (en) Control device for automatic air brakes
GB1316223A (en) Suspension systems for motor vehicles
US3097021A (en) Relay emergency valve
US3502374A (en) Brake cylinder release valve
US3164414A (en) Electrically controlled trailer brake system
US2291874A (en) Sander
US2121543A (en) Fluid pressure brake
GB1102329A (en) Improvements in or relating to electro-pneumatic compressed air brake arrangements for rail vehicles
GB975515A (en) Apparatus for controlling the change of speed of a vehicle along a route
US2235917A (en) Air brake
US2058015A (en) Brake retardation controller
GB1323985A (en) Pneumatic suspension systems for vehicles
GB754153A (en) Improvements relating to systems for the automatic application of compressed air brakes for railway vehicles under the control of automatic train control apparatus
SU107261A1 (en) Electric air distributor device
GB1325330A (en) Electro-fluid controlled valve assembly
US2678851A (en) Quick release apparatus for fluid pressure brakes
US2608447A (en) Automatic cutout for train circuit protection device
US1879704A (en) Traction increasing device
US2575545A (en) Circuit failure protection device