GB374489A - Improvements in or relating to servo brake operating mechanism for motor vehicles - Google Patents

Improvements in or relating to servo brake operating mechanism for motor vehicles

Info

Publication number
GB374489A
GB374489A GB708831A GB708831A GB374489A GB 374489 A GB374489 A GB 374489A GB 708831 A GB708831 A GB 708831A GB 708831 A GB708831 A GB 708831A GB 374489 A GB374489 A GB 374489A
Authority
GB
United Kingdom
Prior art keywords
valve
brakes
rod
transmission
cylinder
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
GB708831A
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.)
Wabco Automotive UK Ltd
Original Assignee
Clayton Dewandre 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 Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Priority to GB708831A priority Critical patent/GB374489A/en
Publication of GB374489A publication Critical patent/GB374489A/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)
  • Braking Arrangements (AREA)

Abstract

374,489. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd., Titanic Works, Lincoln, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. March 6, 1931, No. 7088. [Class 103 (i).] In fluid-pressure,brakes for motor vehicles the power actuating device is carried by a pivotal link element of the transmission, one relatively movable part of this device being fixed to the link and the other relatively movable part being attached to a fixed support through a link which serves as a force-transmitting element and not as a support for the power actuating device. The brake piston 1 is fixed by a rod or cable 2 to a fixed part of the chassis and works in a movable cylinder 3 connected to the brake transmission 4. The cylinder carries a valve housing 7 containing a hollow suction valve 8 seating on a port 9 and controlling the suction connection 10 and a valve 11 seating on the open end of the valve 8 and controlling the atmospheric ports 12. The valve 8 is normally maintained closed and the valve 11 open by springs 13, 15a respectively. The valve 11 is closed and the valve 8 opened to apply the brakes by a rod 14 and a pedal 15. If the pedal is then maintained stationary the consequent movement of the cylinder recloses the valve 8 and maintains the brakes applied. The rod 14 is provided with a stop 16 which is adapted to engage an abutment 17 to form a lost motion which when taken up allows the brakes to be applied by foot pressure on the pedal. The rod 14 slides in a cylindrical guideway and forms with the connection of the cylinder to the transmission, supports for the self-contained power unit which takes the place of one of the pull rods of the transmission.
GB708831A 1931-03-06 1931-03-06 Improvements in or relating to servo brake operating mechanism for motor vehicles Expired GB374489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB708831A GB374489A (en) 1931-03-06 1931-03-06 Improvements in or relating to servo brake operating mechanism for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB708831A GB374489A (en) 1931-03-06 1931-03-06 Improvements in or relating to servo brake operating mechanism for motor vehicles

Publications (1)

Publication Number Publication Date
GB374489A true GB374489A (en) 1932-06-06

Family

ID=9826376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB708831A Expired GB374489A (en) 1931-03-06 1931-03-06 Improvements in or relating to servo brake operating mechanism for motor vehicles

Country Status (1)

Country Link
GB (1) GB374489A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726516A3 (en) * 2005-05-27 2009-03-25 Shimano Inc. Dual lever hydraulic brake assembly and method of using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726516A3 (en) * 2005-05-27 2009-03-25 Shimano Inc. Dual lever hydraulic brake assembly and method of using the same

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