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GB1189319A - Automatic Slack Adjusters - Google Patents

Automatic Slack Adjusters

Info

Publication number
GB1189319A
GB1189319A GB4947067A GB4947067A GB1189319A GB 1189319 A GB1189319 A GB 1189319A GB 4947067 A GB4947067 A GB 4947067A GB 4947067 A GB4947067 A GB 4947067A GB 1189319 A GB1189319 A GB 1189319A
Authority
GB
United Kingdom
Prior art keywords
worm
brake
shaft
lever
rotated
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
GB4947067A
Inventor
Geoffrey Robinson Tregoning
Edmund John Page
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 GB4947067A priority Critical patent/GB1189319A/en
Priority to NL6814231A priority patent/NL6814231A/xx
Priority to DE19681802510 priority patent/DE1802510A1/en
Priority to ES359716A priority patent/ES359716A1/en
Publication of GB1189319A publication Critical patent/GB1189319A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters
    • B61H15/0007—Wear-compensating mechanisms, e.g. slack adjusters mechanical and self-acting in one direction
    • 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
    • F16D65/60—Slack adjusters mechanical self-acting in one direction for adjusting excessive play for angular adjustment of two concentric parts of the brake control systems

Landscapes

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

Abstract

1,189,319. Brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 20 Sept., 1968 [31 Oct., 1967], No. 49470/67. Heading F2E. An automatic slack adjuster of the type having a worm and worm-wheel includes a oneway clutch device 12 surrounding a shaft 5 rigid with the worm 4, the device 12 being rotatable relative to the shaft 5 in one direction of rotation, clutched to the shaft 5 in the other direction and looked against rotation when the brake is applied. The worm 4 and shaft 5 are urged in the direction in which a lever 1 is moved to apply the brakes, i.e. clockwise as seen in Fig. 2, by belleville washers 6. As the lever 1 is rotated to apply the brake, the device 12 which is provided with teeth moves a rack 20 slidable on a member 21 to take up a lostmotion Y which corresponds to the normal brake clearance, the member 21 being spring urged against a stop 23. As the lever is rotated further the reaction on worm 4 is sufficient to overcome the force of the washers 6 so as to clamp the device 12 between the worm 4 and a shoulder 17 on the lever 1. Should there be an excessive brake clearance is when the lost motion Y is taken up the brake is not yet applied, as the lever 1 is rotated further the device 12, not having been, clamped, is rotated relative to the shaft 5 in one direction by its movement relative to the rack 20, which is held stationary with the member 21 by a spring 22, to measure the excessive clearance until the brakes are applied to clamp the device 12. Upon release of the brake the device 12 is rotated in the other direction so as to clutch the shaft 5 to rotate the worm 4 in a direction to cause the worm-wheel 3 to close the brake clearance. The one-way clutching of the device 12 may be provided by faces (13) on the radially inner surface of the device 12 which faces each constitute one of a pair of relatively inclined faces with the outer surface of shaft 5, and a roller (14) situated between each of these pairs of faces, Fig. 1 (not shown). The slack may be adjusted manually by a nut 30.
GB4947067A 1967-10-31 1967-10-31 Automatic Slack Adjusters Expired GB1189319A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4947067A GB1189319A (en) 1967-10-31 1967-10-31 Automatic Slack Adjusters
NL6814231A NL6814231A (en) 1967-10-31 1968-10-04
DE19681802510 DE1802510A1 (en) 1967-10-31 1968-10-11 Adjustment device for brakes
ES359716A ES359716A1 (en) 1967-10-31 1968-10-30 Automatic Slack Adjusters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4947067A GB1189319A (en) 1967-10-31 1967-10-31 Automatic Slack Adjusters

Publications (1)

Publication Number Publication Date
GB1189319A true GB1189319A (en) 1970-04-22

Family

ID=10452457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4947067A Expired GB1189319A (en) 1967-10-31 1967-10-31 Automatic Slack Adjusters

Country Status (4)

Country Link
DE (1) DE1802510A1 (en)
ES (1) ES359716A1 (en)
GB (1) GB1189319A (en)
NL (1) NL6814231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499978A (en) * 1981-11-09 1985-02-19 C. S. Norcross & Sons Slack adjuster

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7707664A (en) * 1976-07-13 1978-01-17 Girling Ltd AUTOMATIC PLAY ADJUSTER FOR A VEHICLE BRAKE CONNECTION.
TR200805758A2 (en) * 2008-08-05 2009-04-21 Aydinsan Fi̇ren Circirlari Ve Otomoti̇v Yedek Parçalari İmalati Pazarlama Ve Satişi Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ FUNCTIONAL FULL AUTOMATIC BRAKE SPEED ADJUSTMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499978A (en) * 1981-11-09 1985-02-19 C. S. Norcross & Sons Slack adjuster

Also Published As

Publication number Publication date
DE1802510A1 (en) 1969-07-03
NL6814231A (en) 1969-05-02
ES359716A1 (en) 1970-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee