GB260344A - Improvements relating to track braking devices for railway and like vehicles - Google Patents

Improvements relating to track braking devices for railway and like vehicles

Info

Publication number
GB260344A
GB260344A GB1914225A GB1914225A GB260344A GB 260344 A GB260344 A GB 260344A GB 1914225 A GB1914225 A GB 1914225A GB 1914225 A GB1914225 A GB 1914225A GB 260344 A GB260344 A GB 260344A
Authority
GB
United Kingdom
Prior art keywords
arms
braking
braking elements
electric motor
wheel
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
GB1914225A
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.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal Inc
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 Union Switch and Signal Inc filed Critical Union Switch and Signal Inc
Priority to GB1914225A priority Critical patent/GB260344A/en
Priority to FR603225D priority patent/FR603225A/en
Publication of GB260344A publication Critical patent/GB260344A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/02—Track brakes or retarding apparatus
    • B61K7/12—Track brakes or retarding apparatus electrically controlled

Abstract

260,344. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). July 28, 1925. Electric and magnetic; arresting-grips or frictional apparatus on permanent way.-In a braking device located on tracks for railway and like vehicles adapted to engage the vehicle wheels. and rendered operative electrically, each braking element, or pair of braking elements, is actuated by a separate electromagnetic mechanism or electric motor. The braking elements may be arranged to form part of a magnetic circuit, including the vehicle wheel, or may be mounted on resilient arms and brought into operation by an electric motor. In Figs. 1 and 2, the supporting arms 5 of the braking elements 3, 3a adapted to engage the sides of the wheel 2, and the arms 9, 9<a> of a magnetic yoke attached to the braking elements, are pivoted on the same axis 9<b> beneath the sleeper 11. Electric current supplied to windings 10, 10a on the arms 9, 9<a> creates a magnetic flux which brings the braking elements into contact with the wheel with a force depending on the amount of current supplied. In a modification. only one braking element is used and the magnetic circuit is completed through the track trail. In a further modification, the brake element supporting arms are pivoted between the track rails and the brake elements engage the inner sides of a pair of wheels, the magnetic circuit being completed through the axle of the wheels. In Fig. 7, the arms 9, 9<a> are attached to a horizontal rod 19 and are preferably resilient. The arms 9, 9a are drawn towards one another to bring the braking elements into contact with the wheel by links 16, 16a attached as shown to a disc 18 turned in a clockwise direction by an electric motor 17 through reduction gearing 28. The links 16, 16a may be resilient. In a modification, the bars 9, 9<a> are drawn towards one another by a rod passing through holes in the bars and having left and right-hand threads coacting with nuts fixed to the bars. An electric motor turns the rod through gearing.
GB1914225A 1925-07-28 1925-07-28 Improvements relating to track braking devices for railway and like vehicles Expired GB260344A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1914225A GB260344A (en) 1925-07-28 1925-07-28 Improvements relating to track braking devices for railway and like vehicles
FR603225D FR603225A (en) 1925-07-28 1925-09-18 Improvements in track brakes for railway vehicles and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1914225A GB260344A (en) 1925-07-28 1925-07-28 Improvements relating to track braking devices for railway and like vehicles

Publications (1)

Publication Number Publication Date
GB260344A true GB260344A (en) 1926-10-28

Family

ID=10124445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1914225A Expired GB260344A (en) 1925-07-28 1925-07-28 Improvements relating to track braking devices for railway and like vehicles

Country Status (2)

Country Link
FR (1) FR603225A (en)
GB (1) GB260344A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281478B (en) * 1963-07-23 1968-10-31 Siemens Ag Device especially for eddy current braking of rail vehicles by means of magnetic fields
GB2198794A (en) * 1986-12-12 1988-06-22 Trw Automotive Products Inc Preventing unwinding of a seat belt in an emergency
GB2219565A (en) * 1988-04-15 1989-12-13 Mid West Conveyor Co Trolley braking method and apparatus for use with conveyors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH391773A (en) * 1961-09-28 1965-05-15 Huber Jakob Ing Dr System for braking rail vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281478B (en) * 1963-07-23 1968-10-31 Siemens Ag Device especially for eddy current braking of rail vehicles by means of magnetic fields
GB2198794A (en) * 1986-12-12 1988-06-22 Trw Automotive Products Inc Preventing unwinding of a seat belt in an emergency
GB2198794B (en) * 1986-12-12 1991-05-08 Trw Automotive Products Inc Seat belt retractor with electrically actuatable locking mechanism
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
FR603225A (en) 1926-04-12

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