GB327815A - Improvements in or relating to track brakes - Google Patents

Improvements in or relating to track brakes

Info

Publication number
GB327815A
GB327815A GB543829A GB543829A GB327815A GB 327815 A GB327815 A GB 327815A GB 543829 A GB543829 A GB 543829A GB 543829 A GB543829 A GB 543829A GB 327815 A GB327815 A GB 327815A
Authority
GB
United Kingdom
Prior art keywords
pinion
wheel
rack
engagement
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
GB543829A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB543829A priority Critical patent/GB327815A/en
Publication of GB327815A publication Critical patent/GB327815A/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
    • 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)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Braking Arrangements (AREA)

Abstract

327,815. General Electric Co., Ltd., and Robson, R. Feb. 18, 1929. Skid brakes applied by running axle or wheel.-A track brake for vehicles which is adapted to clamp the vehicle to the track is applied by a clutch device driven by an axle or wheel of the vehicle. As applied to the bogie of a tower crane, the apparatus comprises a rail-engaging shoe 30 carried by a pair of links 12 pivoted to the bogie frame at 11 so as to move parallel to the rail. The shoe has a rectangular opening 34 through which passes a shaft 35 of triangular section arranged to rock on bearings on the frame members 10. The shaft 35 is secured to a liner 38 counterweighted at 39 and having pivoted thereto a rack 40 adapted for engagement with a pinion 41 driven through a friction clutch from the running wheel 8 of the bogie. The clutch comprises a pair of discs carried by the wheel 8 and between which is gripped by springs a third disc carried by the pinion 41. The pinion is freely mounted on an extension of the bush of the wheel 8, which may alsd carry a driving pinion. The rack 40 can be thrown into and out of engagement with the pinion 41 by means of a toggle 42, 43 connected to a fixed point 45, a link 46 and an operating rod 44. The link 46 carries a die working in a slot 49 in the rack 40. The rod 44 may be actuated by a solenoid arranged to be energized and de-energized respectively when current is cut off from and supplied to the travelling motor of the crane. Thus if it is desired to stop the crane, lowering of the rod 44 engages the rack 40 with the pinion 41, thereby rocking the lever 38 and shaft 35 in one direction or the other depending upon the rotational direction of the wheels, the shoe 30 being forced into engagement with the under surface of the rail flange 32 in either case.
GB543829A 1929-02-18 1929-02-18 Improvements in or relating to track brakes Expired GB327815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB543829A GB327815A (en) 1929-02-18 1929-02-18 Improvements in or relating to track brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB543829A GB327815A (en) 1929-02-18 1929-02-18 Improvements in or relating to track brakes

Publications (1)

Publication Number Publication Date
GB327815A true GB327815A (en) 1930-04-17

Family

ID=9796202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB543829A Expired GB327815A (en) 1929-02-18 1929-02-18 Improvements in or relating to track brakes

Country Status (1)

Country Link
GB (1) GB327815A (en)

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