GB1336670A - Track circuit apparatus for a railway - Google Patents

Track circuit apparatus for a railway

Info

Publication number
GB1336670A
GB1336670A GB1309871*[A GB1309871A GB1336670A GB 1336670 A GB1336670 A GB 1336670A GB 1309871 A GB1309871 A GB 1309871A GB 1336670 A GB1336670 A GB 1336670A
Authority
GB
United Kingdom
Prior art keywords
circuit
transmitter
signal
track circuit
centre
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
GB1309871*[A
Other languages
English (en)
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.)
SPX Technologies Inc
Original Assignee
General Signal Corp
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 Signal Corp filed Critical General Signal Corp
Publication of GB1336670A publication Critical patent/GB1336670A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB1309871*[A 1970-05-04 1971-05-04 Track circuit apparatus for a railway Expired GB1336670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3423670A 1970-05-04 1970-05-04

Publications (1)

Publication Number Publication Date
GB1336670A true GB1336670A (en) 1973-11-07

Family

ID=21875135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309871*[A Expired GB1336670A (en) 1970-05-04 1971-05-04 Track circuit apparatus for a railway

Country Status (7)

Country Link
US (1) US3670161A (enExample)
BR (1) BR7102691D0 (enExample)
CA (1) CA938369A (enExample)
DE (1) DE2121972A1 (enExample)
FR (1) FR2091200A5 (enExample)
GB (1) GB1336670A (enExample)
NL (1) NL7106099A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819933A (en) * 1972-12-08 1974-06-25 Westinghouse Air Brake Co Detector track circuit for railroad crossings
US4304377A (en) * 1977-06-08 1981-12-08 Compagnie De Signaux Et D'entreprises Electriques Electrical block separating joints for railway signaling systems
CS217737B1 (en) * 1980-04-04 1983-01-28 Oldrich Poupe Connection of the railway circuit with plural signalling sources

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193102A (en) * 1938-03-19 1940-03-12 Rca Corp Dictograph

Also Published As

Publication number Publication date
FR2091200A5 (enExample) 1972-01-14
NL7106099A (enExample) 1971-11-08
US3670161A (en) 1972-06-13
BR7102691D0 (pt) 1973-04-10
DE2121972A1 (de) 1971-11-25
CA938369A (en) 1973-12-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years