GB516951A - Improvements in or relating to vehicle brakes - Google Patents

Improvements in or relating to vehicle brakes

Info

Publication number
GB516951A
GB516951A GB2298438A GB2298438A GB516951A GB 516951 A GB516951 A GB 516951A GB 2298438 A GB2298438 A GB 2298438A GB 2298438 A GB2298438 A GB 2298438A GB 516951 A GB516951 A GB 516951A
Authority
GB
United Kingdom
Prior art keywords
rod
collar
piston
shell
brake
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
GB2298438A
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.)
GEOFFREY ROBERT GREENBERGH GAT
Automotive Products PLC
Original Assignee
GEOFFREY ROBERT GREENBERGH GAT
Automotive Products PLC
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 GEOFFREY ROBERT GREENBERGH GAT, Automotive Products PLC filed Critical GEOFFREY ROBERT GREENBERGH GAT
Priority to GB2298438A priority Critical patent/GB516951A/en
Publication of GB516951A publication Critical patent/GB516951A/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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • 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
    • F16D2123/00—Multiple operation forces
    • 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

516,951. Internal expanding brakes. AUTOMOTIVE PRODUCTS CO., Ltd., GATES, G. R. G., and SIDNEY, W. E. Aug. 3, 1938, No. 22984. [Class 103 (i)] A vehicle brake adapted to be operated by hydraulic or mechanical means comprises .a member which acts in tension to move the brake shoe or shoes outwardly into contact with a rotating drum, the member being connected by a lost motion device with the piston of a hydraulic cylinder unit, and by a second lost motion device with mechanical brake rigging. In the construction shown in Fig. 2, brake shoes 12, 13 are adapted to be pressed outwardly by means which include plungers 39, 40, pivoted sector-shaped members 35, 36, and a tension rod 32. The rod 32 passes through an extension 20 of a piston 19 and at its inner end is screw-threaded to receive a collar 30. The collar is connected by a pin 31 to a tubular shell 26 which is flanged at both ends. At one end it is provided with a collar 51 against which bears the head 50 of a rod 48. The rod is screw-threaded at 49 for attachment to a mechanical brake rigging. The shell 26 is adapted to have limited sliding movement within anenlarged portion of a cylinder 17. When the brake is operated hydraulically the piston 19 acts through the flange 29 to move the collar 30 within the shell 26. Mechanical operation is transmitted through the shell 26 and flange 29 without affecting the piston 19. The collar 30 of the tension rod 32 is formed with a diametral slot for engagement by a ridge 53 on the rod 48, whereby the position of the tension rod may be adjusted. In a modification shown in Fig. 3, the piston 19 is normally held in its inoperative position by a spring 63. The rod 48 is fixed to a shell 26a which is flanged at 29a to engage a collar 58 fixed to the tension rod 32. Specification 495,834 is referred to.
GB2298438A 1938-08-03 1938-08-03 Improvements in or relating to vehicle brakes Expired GB516951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2298438A GB516951A (en) 1938-08-03 1938-08-03 Improvements in or relating to vehicle brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2298438A GB516951A (en) 1938-08-03 1938-08-03 Improvements in or relating to vehicle brakes

Publications (1)

Publication Number Publication Date
GB516951A true GB516951A (en) 1940-01-16

Family

ID=10188210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2298438A Expired GB516951A (en) 1938-08-03 1938-08-03 Improvements in or relating to vehicle brakes

Country Status (1)

Country Link
GB (1) GB516951A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278266B (en) * 1963-10-09 1968-09-19 Bosch Gmbh Robert Pneumatic braking device, especially for motor vehicles
WO2017089050A1 (en) * 2015-11-25 2017-06-01 Saf-Holland Gmbh Actuation mechanism for a brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278266B (en) * 1963-10-09 1968-09-19 Bosch Gmbh Robert Pneumatic braking device, especially for motor vehicles
WO2017089050A1 (en) * 2015-11-25 2017-06-01 Saf-Holland Gmbh Actuation mechanism for a brake
US10704622B2 (en) 2015-11-25 2020-07-07 Saf-Holland Gmbh Actuation mechanism for a brake

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