GB1242781A - Brake block - Google Patents

Brake block

Info

Publication number
GB1242781A
GB1242781A GB25935/69A GB2593569A GB1242781A GB 1242781 A GB1242781 A GB 1242781A GB 25935/69 A GB25935/69 A GB 25935/69A GB 2593569 A GB2593569 A GB 2593569A GB 1242781 A GB1242781 A GB 1242781A
Authority
GB
United Kingdom
Prior art keywords
brake
block
braking surface
lobes
formations
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
GB25935/69A
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.)
METPRO DEV Co Pty
Original Assignee
METPRO DEV Co Pty
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 METPRO DEV Co Pty filed Critical METPRO DEV Co Pty
Publication of GB1242781A publication Critical patent/GB1242781A/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
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/06—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes
    • F16D65/062—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes engaging the tread of a railway wheel
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples

Landscapes

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

Abstract

1,242,781. Brake blocks. METPRO DEVELOPMENT CO. (PTY.) Ltd. 21 May, 1969 [28 May, 1968; 24 July, 1968], No. 25935/69. Heading F2E. A brake block comprises at least two lobes having a plurality of projecting formations thereon forming a braking surface. As shown in Fig. 1, a brake block 10 includes a single piece of brake material 11 formed with two lobes 18, 20 defining between them a recess 22. Each lobe has a curved braking surface 24 or 26 formed by projecting undulating angular formations in the form of parallel ridges 28 (see also Fig. 4). Each ridge has equal sides 30, 32, defining between them an angle of approximately 60 degrees. The brake material 11 may be moulded on to a reinforcing backplate 12, holes 39 being provided to assist attachment. Securing- and locating-lugs 14, 16 may also be provided. The brake block 40 of Fig. 4 has two separate lobes 42, 44. The braking surface with which the brake blocks are used may be cylindrical, or frustoconical. The frusto-conical surface may be that of a rail wheel, having, for example, a taper of 1 in 20. Alternatively the braking surface may be the flat side of a disc. Preferably a complete brake assembly incorporating brake blocks of the invention is so mounted that the projecting formations lie transverse to the direction of movement of the surface being braked. Thereby the bedding down of the brake blocks is facilitated and made more rapid because the formations wear away more easily than a uniform surface. Furthermore, where two separate lobes are provided, as in Fig. 4, slight deformation of the block is possible, facilitating circumferential bedding down; cooling also results. The material 11 may be heat-resistant, and in all cases the valleys 38 between the ridges 28 assist the dissipation of heat. One side of the brake block may be painted yellow and the other side red, to indicate correct and incorrect fitting respectively, especially where a slight taper on the block has to be matched with a slight taper on the braking surface. The colouring also assists in determing the degree of wear of the block on mere visual examination.
GB25935/69A 1968-05-28 1969-05-21 Brake block Expired GB1242781A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA683429 1968-05-28
ZA684781 1968-07-24

Publications (1)

Publication Number Publication Date
GB1242781A true GB1242781A (en) 1971-08-11

Family

ID=27130968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25935/69A Expired GB1242781A (en) 1968-05-28 1969-05-21 Brake block

Country Status (5)

Country Link
BE (1) BE733689A (en)
ES (1) ES367742A1 (en)
GB (1) GB1242781A (en)
LU (1) LU58679A1 (en)
ZM (1) ZM7769A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000792A (en) * 1975-08-28 1977-01-04 Westinghouse Air Brake Company Brake shoe and head assembly
GB2125125A (en) * 1982-08-02 1984-02-29 Iperco Italian Permafuse Corp Brake shoe liner for drum brakes
WO1999066227A1 (en) * 1998-06-16 1999-12-23 Meritor Heavy Vehicle Braking Systems (Uk) Limited Brake shoe and internal shoe drum brake

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104595396B (en) * 2015-01-28 2018-05-18 安徽昕宏通用设备制造有限公司 A kind of brake anti-deformation device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000792A (en) * 1975-08-28 1977-01-04 Westinghouse Air Brake Company Brake shoe and head assembly
GB2125125A (en) * 1982-08-02 1984-02-29 Iperco Italian Permafuse Corp Brake shoe liner for drum brakes
WO1999066227A1 (en) * 1998-06-16 1999-12-23 Meritor Heavy Vehicle Braking Systems (Uk) Limited Brake shoe and internal shoe drum brake
GB2358051A (en) * 1998-06-16 2001-07-11 Meritor Heavy Vehicle Braking Brake shoe and internal shoe drum brake
GB2358051B (en) * 1998-06-16 2002-05-15 Meritor Heavy Vehicle Braking Brake shoe and internal shoe drum brake
US6422359B1 (en) 1998-06-16 2002-07-23 Meritor Heavy Vehicle Braking Systems (Uk) Ltd. Brake shoe and internal shoe drum brake

Also Published As

Publication number Publication date
ES367742A1 (en) 1971-04-16
LU58679A1 (en) 1969-08-28
ZM7769A1 (en) 1969-10-16
BE733689A (en) 1969-11-03

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