GB811302A - Improvements in brake apparatus, more particularly for railway vehicles - Google Patents

Improvements in brake apparatus, more particularly for railway vehicles

Info

Publication number
GB811302A
GB811302A GB17847/55A GB1784755A GB811302A GB 811302 A GB811302 A GB 811302A GB 17847/55 A GB17847/55 A GB 17847/55A GB 1784755 A GB1784755 A GB 1784755A GB 811302 A GB811302 A GB 811302A
Authority
GB
United Kingdom
Prior art keywords
deceleration
axle
movement
control
pressure
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
GB17847/55A
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.)
Westinghouse Bremsen GmbH
Original Assignee
Westinghouse Bremsen GmbH
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 Bremsen GmbH filed Critical Westinghouse Bremsen GmbH
Publication of GB811302A publication Critical patent/GB811302A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/72—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference
    • B60T8/74—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference sensing a rate of change of velocity

Landscapes

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

Abstract

811,302. Fluid-pressure brakes. WESTING- HOUSE BREMSENG.m.b.H. June 21, 1955 [June 21, 1954], No. 17847/55. Class 103 (1). In apparatus for the control of fluid pressure brakes, particularly in railway vehicles, an electrical control circuit for governing a vent valve for the brake cylinder, whereby the pressure therein may be reduced to prevent skidding, is operated by the difference in the position of two control elements, the position of one being dependent on the motion of a wheel about its axis, and that of the other upon the motion of a non-rotary part relative to the track on which the wheel is running. The control device is mounted within the bore 8 of a rotating axle and comprises a rotary inertia member 11 which is rotated by the axle through a dog 14 and spring 15 such that if the axle is decelerated or accelerated at more than a certain rate a roller 17 on an arm 16 will move down a slot 18 in the member 11 and cause axial movement of a switching disc 12 such as to engage either contact 33a or 33b. Similarly if there is excessive deceleration or acceleration in the translational movement of the vehicle, a pendulum 22 will tilt and cause movement in the slot 24 of a roller 25 so that the member 32 holding the contacts 33a and 33b is moved axially with respect to the switching disc 12. Thus excessive rotational deceleration of the axle without corresponding translational deceleration, or vice versa, will cause the closure of disc 12 with one or other of contacts 33a or 33b so as to operate an electrical circuit which will reduce the brake cylinder pressure so as to prevent skidding. In this way correct brake control may be applied to the wheels of a railway vehicle in which deceleration is also being produced by magnetic rail brakes. In another embodiment described the movement of the pendulum is coupled with that of the rotary inertia element by means of sun and planet gearing. Reference has been directed by the Comptroller to Specifications 662,029 and 766,224.
GB17847/55A 1954-06-21 1955-06-21 Improvements in brake apparatus, more particularly for railway vehicles Expired GB811302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE811302X 1954-06-21

Publications (1)

Publication Number Publication Date
GB811302A true GB811302A (en) 1959-04-02

Family

ID=6727300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17847/55A Expired GB811302A (en) 1954-06-21 1955-06-21 Improvements in brake apparatus, more particularly for railway vehicles

Country Status (1)

Country Link
GB (1) GB811302A (en)

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