GB196673A - Improvements in and relating to safety car control and air brake equipments - Google Patents

Improvements in and relating to safety car control and air brake equipments

Info

Publication number
GB196673A
GB196673A GB210922A GB210922A GB196673A GB 196673 A GB196673 A GB 196673A GB 210922 A GB210922 A GB 210922A GB 210922 A GB210922 A GB 210922A GB 196673 A GB196673 A GB 196673A
Authority
GB
United Kingdom
Prior art keywords
valve
pipe
handle
straight air
brakes
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
GB210922A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB210922A priority Critical patent/GB196673A/en
Publication of GB196673A publication Critical patent/GB196673A/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
    • 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
    • B60T17/20—Safety devices operable by passengers other than the driver, e.g. for railway vehicles

Landscapes

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

Abstract

196,673. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 24, 1922. Fluid-pressure. - A safety device applied to electrically - propelled vehicles provided with a combined straight and automatic pressure brake system comprises a pilot valve opened on release of a handle by the driver to connect the emergency brake pipe to the straight air pipe and to a circuit-breaker whereby the brakes are applied and the motors cut out. The pilot valve may be operated by the handle of the driver's brake valve in certain positions theof. The known equipment shown comprises a pipe 2 connected to the main reservoir 7, the straight air pipe 3 normally connected through the emergency valve 5 to the brake cylinder 6, and the emergency pipe 4 venting of which moves the valve 5 to connect the brake cylinder with the reservoir 8 which is connected to the reservoir 7 past the check valve 10. The handle of the driver's brake valve 1 can be removed when changing ends only after a straight air application of the brakes has been made and a double-check valve 30 is provided in the straight air pipe for cutting off the control of the brakes from the non-operating end. The handle 11 of the driver's valve 1, Fig. 3, is pivoted at 15 and has secured to it a finger 16 which in the lap and release positions of the valve is adapted under the action of a spring 18, if the handle is released, to open a pilot valve 17 and thus to connect, by pipe 21, the emergency pipe 4 to the straight air pipe 3 and to a circuit-breaker 27 for the motors. An emergency application of the brakes is thus effected if in these circumstances the pressure in the straight air pipe is below a predetermined value. The driver can remove his hand from the handle 11 without operation of the safety device by first closing a valve 22 in the pipe 21, by a pedal 25. A check valve 28 prevents air flowing from the pipe 3 to the circuit-breaker 27 when a straight air application of the brakes is made.
GB210922A 1922-01-24 1922-01-24 Improvements in and relating to safety car control and air brake equipments Expired GB196673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB210922A GB196673A (en) 1922-01-24 1922-01-24 Improvements in and relating to safety car control and air brake equipments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB210922A GB196673A (en) 1922-01-24 1922-01-24 Improvements in and relating to safety car control and air brake equipments

Publications (1)

Publication Number Publication Date
GB196673A true GB196673A (en) 1923-04-24

Family

ID=9733767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB210922A Expired GB196673A (en) 1922-01-24 1922-01-24 Improvements in and relating to safety car control and air brake equipments

Country Status (1)

Country Link
GB (1) GB196673A (en)

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