GB381617A - Improvements in and relating to control valve devices for fluid pressure braking apparatus - Google Patents

Improvements in and relating to control valve devices for fluid pressure braking apparatus

Info

Publication number
GB381617A
GB381617A GB2010131A GB2010131A GB381617A GB 381617 A GB381617 A GB 381617A GB 2010131 A GB2010131 A GB 2010131A GB 2010131 A GB2010131 A GB 2010131A GB 381617 A GB381617 A GB 381617A
Authority
GB
United Kingdom
Prior art keywords
lever
valve
brake
moves
rod
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
GB2010131A
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.)
KENNETH HOWARD LEECH
Siemens Mobility Ltd
Original Assignee
KENNETH HOWARD LEECH
Westinghouse Brake and Signal Co Ltd
Westinghouse Brake and Saxby 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 KENNETH HOWARD LEECH, Westinghouse Brake and Signal Co Ltd, Westinghouse Brake and Saxby Signal Co Ltd filed Critical KENNETH HOWARD LEECH
Priority to GB2010131A priority Critical patent/GB381617A/en
Publication of GB381617A publication Critical patent/GB381617A/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
    • B60T13/00—Transmitting 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
    • B60T13/10—Transmitting 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
    • B60T13/24—Transmitting 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 the fluid being gaseous
    • B60T13/241—Differential pressure systems
    • B60T13/242—The control valve is provided as one unit with the servomotor cylinder
    • B60T13/243—Mechanical command of the control valve, mechanical transmission to the brakes

Landscapes

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

Abstract

381,617. Fluid-pressure brakes. LEECH, K. H. and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. July 13, 1931, No. 20101. [Class 103 (i).] A control valve for fluidpressure brakes, more particularly motor vehicle vacuum brakes, comprises a slide or piston valve 5 adapted to be moved by the brake pedal first to close the atmospheric port 6 and then to lift a poppet valve 8 opening communication between the brake cylinder 2 and a source of vacuum 13, the valve 8 being reclosed to maintain a definite braking effort when the pressure in the brake cylinder corresponds to the effort exerted on the brake pedal. The piston valve 5 is moved by means of a spring 26 and a rod 23 and moves the valve 8 by shoulders 9, 10. The valves move to close both ports when the pressures acting on the valve balance the pressure of the spring 26 and thus provide a lap position. The brake pedal is connected to a rod 21 and first moves a lever 22 about its connection 27 to the rod 23 to operate a lever 28 connected to the brake transmission to take up slack therein and then moves the lever 22 about its connection 29 to the lever 28 to operate the valve. The lever 28 is fixed to a spindle 31 which operates the master cylinder 4 of the hydraulic transmission. The brake piston 34 is connected to a lever 32 loosely mounted on the spindle 31 and having a lug 35 engaging a shoulder 36 on the lever 28.
GB2010131A 1931-07-13 1931-07-13 Improvements in and relating to control valve devices for fluid pressure braking apparatus Expired GB381617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2010131A GB381617A (en) 1931-07-13 1931-07-13 Improvements in and relating to control valve devices for fluid pressure braking apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2010131A GB381617A (en) 1931-07-13 1931-07-13 Improvements in and relating to control valve devices for fluid pressure braking apparatus

Publications (1)

Publication Number Publication Date
GB381617A true GB381617A (en) 1932-10-13

Family

ID=10140393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2010131A Expired GB381617A (en) 1931-07-13 1931-07-13 Improvements in and relating to control valve devices for fluid pressure braking apparatus

Country Status (1)

Country Link
GB (1) GB381617A (en)

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