GB1159701A - Track Braking System. - Google Patents

Track Braking System.

Info

Publication number
GB1159701A
GB1159701A GB11425/66A GB1142566A GB1159701A GB 1159701 A GB1159701 A GB 1159701A GB 11425/66 A GB11425/66 A GB 11425/66A GB 1142566 A GB1142566 A GB 1142566A GB 1159701 A GB1159701 A GB 1159701A
Authority
GB
United Kingdom
Prior art keywords
wheels
rail
guide wheel
wheel
hydraulic cylinders
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
GB11425/66A
Inventor
George Wells Bartley
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.)
Underground Mining Machinery Ltd
Original Assignee
Underground Mining Machinery 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 Underground Mining Machinery Ltd filed Critical Underground Mining Machinery Ltd
Priority to GB11425/66A priority Critical patent/GB1159701A/en
Priority to US620079A priority patent/US3444964A/en
Priority to DE19671605301 priority patent/DE1605301C3/en
Priority to FR99009A priority patent/FR1517177A/en
Publication of GB1159701A publication Critical patent/GB1159701A/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
    • B61H9/00—Brakes characterised by or modified for their application to special railway systems or purposes
    • B61H9/04—Brakes characterised by or modified for their application to special railway systems or purposes for preventing or controlling movement in one direction or, selectively, in either direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/04—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels by controlling wheel pressure, e.g. by movable weights or heavy parts or by magnetic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H7/00—Brakes with braking members co-operating with the track
    • B61H7/02—Scotch blocks, skids, or like track-engaging shoes

Landscapes

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

Abstract

1,159,701. Undercarriages. UNDERGROUND MINING MACHINERY Ltd. 6 March, 1967 [16 March, 1966], No. 11425/66. Heading B7L. [Also in Divisions B8 and F2] In a rail-borne vehicle braking system which has vehicle supporting wheels 11, Fig. 1, and at least one separate guide wheel 20 disposed between a rail 10 and a surface 15 which is movable to trap the guide wheel between the rail and itself to apply a braking force, the frictional force developed between the movable surface and the guide wheel is less than the frictional force developed between the guide wheel and the rail. The bogie frame 12 indirectly support pivotably mounted brackets 16 which carry vertically disposed shafts 18 mounting wheels 20. When hydraulic cylinders 22 is pressurized the upper edge of brake plate 15 is drawn inwardly against springs 21 so that wheels 20 are free to rotate. Hydraulic cylinders 22 are de-pressurized to effect braking by means of springs 21 which pivot plates 15 into engagement with wheels 20 to move the latter into engagement with rail 10. Wheels 20 continue to rotate but are heavily braked. Skidding is prevented by arranging for the coefficient of friction between the plate 15 and the wheel 20 to be less than that between the wheel 20 and the rail 10. In another embodiment, Fig. 4 (not shown), the brakes are positively applied by the hydraulic cylinders against the spring pressure. In both embodiments the wheels 20 may have neoprene tyres and the cylinders 22 may be pneumatically, vacuum or electrically operated. The brakes may be actuated at a predetermined speed by a centrifugal governor driven indirectly by the running wheels.
GB11425/66A 1966-03-16 1966-03-16 Track Braking System. Expired GB1159701A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB11425/66A GB1159701A (en) 1966-03-16 1966-03-16 Track Braking System.
US620079A US3444964A (en) 1966-03-16 1967-03-02 Track braking system
DE19671605301 DE1605301C3 (en) 1966-03-16 1967-03-15 Running gear for a rail vehicle, in particular for use in mining operations, with a braking device
FR99009A FR1517177A (en) 1966-03-16 1967-03-16 Braking system and method for rail vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB11425/66A GB1159701A (en) 1966-03-16 1966-03-16 Track Braking System.
FR99009A FR1517177A (en) 1966-03-16 1967-03-16 Braking system and method for rail vehicles

Publications (1)

Publication Number Publication Date
GB1159701A true GB1159701A (en) 1969-07-30

Family

ID=26174966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11425/66A Expired GB1159701A (en) 1966-03-16 1966-03-16 Track Braking System.

Country Status (2)

Country Link
FR (1) FR1517177A (en)
GB (1) GB1159701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219565A (en) * 1988-04-15 1989-12-13 Mid West Conveyor Co Trolley braking method and apparatus for use with conveyors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219565A (en) * 1988-04-15 1989-12-13 Mid West Conveyor Co Trolley braking method and apparatus for use with conveyors

Also Published As

Publication number Publication date
FR1517177A (en) 1968-03-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired