GB435991A - Improvements in or relating to brake operating mechanism - Google Patents

Improvements in or relating to brake operating mechanism

Info

Publication number
GB435991A
GB435991A GB24434A GB24434A GB435991A GB 435991 A GB435991 A GB 435991A GB 24434 A GB24434 A GB 24434A GB 24434 A GB24434 A GB 24434A GB 435991 A GB435991 A GB 435991A
Authority
GB
United Kingdom
Prior art keywords
casing
valve
rod
brakes
pedal
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
GB24434A
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
Priority to GB3288232A priority Critical patent/GB389775A/en
Application filed by Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Priority to GB24434A priority patent/GB435991A/en
Publication of GB435991A publication Critical patent/GB435991A/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
    • B60T13/246—The control valve is provided apart from the servomotor cylinder
    • B60T13/247—Mechanical command of the control valve, mechanical transmission to the brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0274—Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2708/00—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes
    • F16H2708/24—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes with a preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification

Abstract

435,991. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd., and EDGE, S. H., Titanic Works, Lincoln. Jan. 3, 1934, No. 244. Addition to 389,775. [Class 103 (i)] The pneumatic operating device described in the parent Specification is used for the operation of vehicle brakes, a precompressed spring being coupled between the pedal or hand lever and the brakes whereby a valve mechanism is operated to supply power only when the effort applied to the pedal &c. exceeds a predetermined value at least sufficient to overcome the release springs of the brakes, while the power is cut off only when the effort falls below that value. The vacuum device shown comprises a valve casing 10 pivoted to an arm 11 on a rock-shaft 4 to which also are connected the rod 5 leading to the brakes and an arm 3 and link 2 connected to the piston of the cylinder 1. The pedal 8 is connected to a rod 9 slidable in the casing 10 and carrying the atmosphere valve 18 adapted to seat upon the vacuum sleeve valve 14 which under the action of a light spring 14b normally closes the chamber 13 connected by pipe 12 to the vacuum source. The cylinder 1 is connected by pipe 16 to the casing 10 and is normally open to atmosphere by way of the valve 18 and passages 15a. A precompressed spring 19 abuts on the casing and upon a collar on the rod 9, and the end 20 of the rod normally abuts on the casing as shown. When the pedal is operated the rod 9 and casing 10 with the pull-rod 5 at first move together until the effort on the pedal is sufficient to overcome the spring 19 whereupon the valve 18 seats upon the sleeve 14 and the sleeve valve 14 is moved in the casing to connect the cylinder 1 to the vacuum source. Should the power fail the brakes may be applied by manual effort alone. The system may be adapted for compressed air. According to the Provisional Specification the initial compression of the spring may be greater or less than that necessary to overcome the brake releasing springs.
GB24434A 1934-01-03 1934-01-03 Improvements in or relating to brake operating mechanism Expired GB435991A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3288232A GB389775A (en) 1934-01-03 1932-11-21 Improvements in or relating to servo operating mechanism for change speed gearing
GB24434A GB435991A (en) 1934-01-03 1934-01-03 Improvements in or relating to brake operating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24434A GB435991A (en) 1934-01-03 1934-01-03 Improvements in or relating to brake operating mechanism

Publications (1)

Publication Number Publication Date
GB435991A true GB435991A (en) 1935-10-03

Family

ID=9700961

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3288232A Expired GB389775A (en) 1934-01-03 1932-11-21 Improvements in or relating to servo operating mechanism for change speed gearing
GB24434A Expired GB435991A (en) 1934-01-03 1934-01-03 Improvements in or relating to brake operating mechanism

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3288232A Expired GB389775A (en) 1934-01-03 1932-11-21 Improvements in or relating to servo operating mechanism for change speed gearing

Country Status (1)

Country Link
GB (2) GB389775A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127180B (en) * 1982-09-16 1986-01-22 Teleflex Morse Ltd Power assistance device

Also Published As

Publication number Publication date
GB389775A (en) 1933-03-23

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