GB424911A - Improvements in brake mechanism for vehicles and the like - Google Patents

Improvements in brake mechanism for vehicles and the like

Info

Publication number
GB424911A
GB424911A GB3289933A GB3289933A GB424911A GB 424911 A GB424911 A GB 424911A GB 3289933 A GB3289933 A GB 3289933A GB 3289933 A GB3289933 A GB 3289933A GB 424911 A GB424911 A GB 424911A
Authority
GB
United Kingdom
Prior art keywords
brakes
servo
shoes
pressure
operate
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
GB3289933A
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.)
FEENY AND JOHNSON Ltd
Original Assignee
FEENY AND JOHNSON 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
Priority to GB1809732A priority Critical patent/GB403668A/en
Application filed by FEENY AND JOHNSON Ltd filed Critical FEENY AND JOHNSON Ltd
Priority to GB3289933A priority patent/GB424911A/en
Publication of GB424911A publication Critical patent/GB424911A/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
    • B60T13/58—Combined or convertible systems
    • B60T13/581—Combined or convertible systems both hydraulic and pneumatic
    • 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

Landscapes

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

Abstract

424,911. Fluid - pressure brakes. JOHNSON, M. E., and FEENY & JOHNSON, Ltd., 134, Ealing Road, Wembley, Middlesex. Nov. 24, 1933, No. 32899. Addition to 403,668. [Class 103 (i)] In a brake system as described in the parent Specification, the servo-motor is arranged to apply brakes through mechanical means indipendent of the main fluid-pressure system or through a separate fluid-pressure system. The brakes applied by the servo-motor may be the same as those of the main system or they may be other brakes. A master cylinder h, Fig. 1, of a hydraulic system, operated by pedal a forces liquid into operating cylinders u of brake shoes a and also to a valve device l constructed as described in the parent Specification whereby vacuum from a source connected at m is established in a servo-motor o dependent upon the pressure in the hydraulic system. The servo-motor actuates a cam r to apply additional pressure to the shoes s. A servomotor may instead be provided at each brake drum and may operate a wedge disposed between the ends of the shoes opposite to those engaged by the cylinder u or it may operate separate shoes arranged beside the shoes a. Servo-motors may operate brakes on the front or rear wheels only of a vehicle or a transmission brake and may be mounted at the middle part of an axle to operate a pair of brakes at the ends; brakes on a trailer vehicle may be operated by servo-motors mounted thereon and connected to the control valve on the tractor by a flexible pipe.
GB3289933A 1933-11-24 1933-11-24 Improvements in brake mechanism for vehicles and the like Expired GB424911A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1809732A GB403668A (en) 1933-11-24 1932-06-27 Improvements in brake mechanism for vehicles and the like
GB3289933A GB424911A (en) 1933-11-24 1933-11-24 Improvements in brake mechanism for vehicles and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3289933A GB424911A (en) 1933-11-24 1933-11-24 Improvements in brake mechanism for vehicles and the like

Publications (1)

Publication Number Publication Date
GB424911A true GB424911A (en) 1935-03-04

Family

ID=10345698

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1809732A Expired GB403668A (en) 1933-11-24 1932-06-27 Improvements in brake mechanism for vehicles and the like
GB3289933A Expired GB424911A (en) 1933-11-24 1933-11-24 Improvements in brake mechanism for vehicles and the like

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1809732A Expired GB403668A (en) 1933-11-24 1932-06-27 Improvements in brake mechanism for vehicles and the like

Country Status (1)

Country Link
GB (2) GB403668A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619203A (en) * 1947-03-28 1952-11-25 David W Shaw Emergency braking system
US3379287A (en) * 1966-03-18 1968-04-23 Leandre J. Gaudet Plural actuated brake system
US3386775A (en) * 1966-07-27 1968-06-04 Hy Dynamic Co Supplemental braking system
US4069899A (en) * 1976-08-11 1978-01-24 Mclane Cletus Vacuum suspended disc brake
CN103832415A (en) * 2013-11-25 2014-06-04 广西河池德建农业装备制造有限公司 Agricultural vehicle four-wheel brake device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566614A (en) * 1938-05-02 1951-09-04 Bendix Prod Corp Hydraulic brake
US2434588A (en) * 1938-11-08 1948-01-13 New Britain Machine Co Power system
US2896584A (en) * 1954-04-02 1959-07-28 Kelsey Hayes Co Booster motor control mechanism
US4787205A (en) * 1985-02-14 1988-11-29 Fontaine William G Vehicle brake system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619203A (en) * 1947-03-28 1952-11-25 David W Shaw Emergency braking system
US3379287A (en) * 1966-03-18 1968-04-23 Leandre J. Gaudet Plural actuated brake system
US3386775A (en) * 1966-07-27 1968-06-04 Hy Dynamic Co Supplemental braking system
US4069899A (en) * 1976-08-11 1978-01-24 Mclane Cletus Vacuum suspended disc brake
CN103832415A (en) * 2013-11-25 2014-06-04 广西河池德建农业装备制造有限公司 Agricultural vehicle four-wheel brake device

Also Published As

Publication number Publication date
GB403668A (en) 1933-12-27

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