GB928181A - Brake actuators - Google Patents

Brake actuators

Info

Publication number
GB928181A
GB928181A GB777861A GB777861A GB928181A GB 928181 A GB928181 A GB 928181A GB 777861 A GB777861 A GB 777861A GB 777861 A GB777861 A GB 777861A GB 928181 A GB928181 A GB 928181A
Authority
GB
United Kingdom
Prior art keywords
wall
brake
chamber
guided
secured
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
GB777861A
Inventor
Derek Keppel Parr
Wilfred Alwyn Kirk
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB777861A priority Critical patent/GB928181A/en
Publication of GB928181A publication Critical patent/GB928181A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

928,181. Internal shoe-drum brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 13, 1962 [March 3, 1961], No. 7778/61. Class 103 (1). In a brake actuator having a linearlymovable cam element 4 engaged by a member 3 operatively connected to a brake shoe 1 such that movement of the element 4 actuates the brake, the element 4 is operatively connected to a wall 16 of a chamber 10 to which fluid may be applied so as to move that wall and thereby the element 4 through the medium of a member 5 which is guided in a second wall 9 of the chamber 10. The arrangement is such that both the end portion of the member 5 connected to the wall 16 and the portion of the member 5 guided in the second wall are laterally displaceable so that the member is self-aligning. As shown, the chamber 10 is in the form of a fluid-tight bag the lower wall 9 of which is formed with a central re-entrant portion that is secured by a clip 8 to a rigid guide sleeve through which the rod 5 passes. The end of the rod 5 is provided with a locknut 12 which is urged by a spring 6 against a collar 13 on a plate 14 between which and an annular plate 15 the wall 16 is clamped. The brake may alternatively be applied by means of a pin 24 secured to the brake rigging having a lost-motion connection with a slot 23 in a bracket 22 secured to the plate 15. The wall 16 may be constituted by a diaphragm, in which case, the member 5 may be guided in the second wall by a tubular element of flexible material encircling the member, one end of the tubular member being connected to the second wall and the other end being slidably connected to the member 5. Alternatively, the chamber may be constituted by a bellows.
GB777861A 1961-03-03 1961-03-03 Brake actuators Expired GB928181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB777861A GB928181A (en) 1961-03-03 1961-03-03 Brake actuators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB777861A GB928181A (en) 1961-03-03 1961-03-03 Brake actuators

Publications (1)

Publication Number Publication Date
GB928181A true GB928181A (en) 1963-06-12

Family

ID=9839538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB777861A Expired GB928181A (en) 1961-03-03 1961-03-03 Brake actuators

Country Status (1)

Country Link
GB (1) GB928181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317010A (en) * 1965-10-27 1967-05-02 Girling Ltd Vehicle brakes
US3326330A (en) * 1965-01-29 1967-06-20 Girling Ltd Vehicle brakes
GB2128253A (en) * 1982-09-25 1984-04-26 Ti Interlock Ltd Diaphragm actuator
US6116385A (en) * 1999-02-05 2000-09-12 Westinghouse Air Brake Company Dual force range TMX cylinder using an air bag actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326330A (en) * 1965-01-29 1967-06-20 Girling Ltd Vehicle brakes
US3317010A (en) * 1965-10-27 1967-05-02 Girling Ltd Vehicle brakes
GB2128253A (en) * 1982-09-25 1984-04-26 Ti Interlock Ltd Diaphragm actuator
US6116385A (en) * 1999-02-05 2000-09-12 Westinghouse Air Brake Company Dual force range TMX cylinder using an air bag actuator

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