GB634408A - Improvements in vehicle brakes - Google Patents

Improvements in vehicle brakes

Info

Publication number
GB634408A
GB634408A GB1609547A GB1609547A GB634408A GB 634408 A GB634408 A GB 634408A GB 1609547 A GB1609547 A GB 1609547A GB 1609547 A GB1609547 A GB 1609547A GB 634408 A GB634408 A GB 634408A
Authority
GB
United Kingdom
Prior art keywords
strut
brake
worm
rocker member
shaft
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
GB1609547A
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.)
THOMAS CARLYLE ROWLAND
Original Assignee
THOMAS CARLYLE ROWLAND
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 THOMAS CARLYLE ROWLAND filed Critical THOMAS CARLYLE ROWLAND
Priority to GB1609547A priority Critical patent/GB634408A/en
Publication of GB634408A publication Critical patent/GB634408A/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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/561—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake
    • F16D65/562—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake arranged between service brake actuator and braking member, and subjected to service brake force
    • 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
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/28—Cams; Levers with cams
    • F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams

Landscapes

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

Abstract

634,408. Adjusting internal-expanding brakes. PARKER, H., and ROWLAND, T. C. E. June 18, 1947, No. 16095. [Class 103 (i)] An automatic adjusting device for a twin shoe internalexpanding brake comprises a composite strut of adjustable length supported by bearing surfaces at its ends coacting with a brake shoe and a rocker member for displacing the strut and means mounted on the strut, and operatively connected to the rocker member, for moving its composite parts endwise relatively to each other to increase its length, the said means being actuated when excessive relative angular movement between the rocker member and the strut takes place. In the embodiment shown, recesses 31 in a rocker member 14 engage the inner ends of two variable struts. These latter comprise housings 15 enclosing screwed sleeves 17, one of which is rotated by a worm shaft 19 and the other by a flexible cable 32 extending through the member 14. Rotation of the sleeves 17 causes inner screwed members 16 to extend, thus reducing the clearance between the linings 22 and the drum 20. A pawl 23 having lost-motion connection with a ratchet-wheel attached to the worm-shaft 19 is carried by a lever 25 mounted for independent rotation on the said worm-shaft and connected by a link 26 to a lug 27 on the rocking member 14. Excessive angular displacement of the rocking member 14 relatively to the strut due to wear on the linings 22 causes the pawl 23 to slip a tooth during application of the brake and thus initiate an increase of strut length on release of the brake. Specifications 446,339, 456,238 and 479,499 are referred to. Specification 492,880 also is referred to in the Provisional Specification.
GB1609547A 1947-06-18 1947-06-18 Improvements in vehicle brakes Expired GB634408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1609547A GB634408A (en) 1947-06-18 1947-06-18 Improvements in vehicle brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1609547A GB634408A (en) 1947-06-18 1947-06-18 Improvements in vehicle brakes

Publications (1)

Publication Number Publication Date
GB634408A true GB634408A (en) 1950-03-22

Family

ID=10071102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1609547A Expired GB634408A (en) 1947-06-18 1947-06-18 Improvements in vehicle brakes

Country Status (1)

Country Link
GB (1) GB634408A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095065A (en) * 1961-12-11 1963-06-25 Troy Leonard Brake shoe adjustment mechanism
FR2375492A1 (en) * 1976-12-27 1978-07-21 Camph Eng Co Ab AUTOMATIC BRAKE LINKAGE ADJUSTMENT MECHANISM
FR2528513A1 (en) * 1982-06-14 1983-12-16 Camph Sven DEVICE FOR AUTOMATICALLY ADJUSTING THE GAME FOR DRUM BRAKE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095065A (en) * 1961-12-11 1963-06-25 Troy Leonard Brake shoe adjustment mechanism
FR2375492A1 (en) * 1976-12-27 1978-07-21 Camph Eng Co Ab AUTOMATIC BRAKE LINKAGE ADJUSTMENT MECHANISM
FR2528513A1 (en) * 1982-06-14 1983-12-16 Camph Sven DEVICE FOR AUTOMATICALLY ADJUSTING THE GAME FOR DRUM BRAKE

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