GB431725A - Improvements relating to trip valves for rail vehicle air brakes - Google Patents

Improvements relating to trip valves for rail vehicle air brakes

Info

Publication number
GB431725A
GB431725A GB670034A GB670034A GB431725A GB 431725 A GB431725 A GB 431725A GB 670034 A GB670034 A GB 670034A GB 670034 A GB670034 A GB 670034A GB 431725 A GB431725 A GB 431725A
Authority
GB
United Kingdom
Prior art keywords
valve
main valve
open
valves
spindle
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
GB670034A
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.)
E M B CO Ltd
EMB Co Ltd
Original Assignee
E M B CO Ltd
EMB 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 E M B CO Ltd, EMB Co Ltd filed Critical E M B CO Ltd
Priority to GB670034A priority Critical patent/GB431725A/en
Publication of GB431725A publication Critical patent/GB431725A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

431,725. Fluid actuated valves. E. M. B. CO., Ltd., and SMITH, S., Moor Street, West Bromwich. March 2, 1934, No. 6700. [Class 135] [See also Group XXXIV] Valves controlled by pilot or relay valves.- Trip valve for railway air brakes comprises a main valve e held on its seat by air pressure and having seated on it a coaxial subsidiary valve l of smaller diameter adapted to be opened, to cause opening of the main valve e to vent the train pipe and to effect a brake application, by a stem n operated by an abutment on the track or by a lever q operated by the driver and adapted to be held open by a spring friction disc acting between the spindle r of the lever q and the valve casing. The main valve e has an overhanging part h acted on by air pressure to open it and fits closely the casing a to restrict the flow of air to the space above the valve. A block z on the spindle n may engage the stem j of the main valve e to open it.
GB670034A 1934-03-02 1934-03-02 Improvements relating to trip valves for rail vehicle air brakes Expired GB431725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB670034A GB431725A (en) 1934-03-02 1934-03-02 Improvements relating to trip valves for rail vehicle air brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB670034A GB431725A (en) 1934-03-02 1934-03-02 Improvements relating to trip valves for rail vehicle air brakes

Publications (1)

Publication Number Publication Date
GB431725A true GB431725A (en) 1935-07-15

Family

ID=9819192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB670034A Expired GB431725A (en) 1934-03-02 1934-03-02 Improvements relating to trip valves for rail vehicle air brakes

Country Status (1)

Country Link
GB (1) GB431725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967591B2 (en) 2011-02-24 2015-03-03 Wabtec Holding Corp. Trip cock fault detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967591B2 (en) 2011-02-24 2015-03-03 Wabtec Holding Corp. Trip cock fault detector

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