GB1404878A - Track circuits - Google Patents

Track circuits

Info

Publication number
GB1404878A
GB1404878A GB734473A GB734473A GB1404878A GB 1404878 A GB1404878 A GB 1404878A GB 734473 A GB734473 A GB 734473A GB 734473 A GB734473 A GB 734473A GB 1404878 A GB1404878 A GB 1404878A
Authority
GB
United Kingdom
Prior art keywords
circuit
track
feb
source
track circuits
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
GB734473A
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.)
Western Industries Pty Ltd
Original Assignee
Western Industries Pty 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
Priority claimed from ZA720969A external-priority patent/ZA72969B/xx
Application filed by Western Industries Pty Ltd filed Critical Western Industries Pty Ltd
Publication of GB1404878A publication Critical patent/GB1404878A/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)
  • Escalators And Moving Walkways (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB734473A 1972-02-15 1973-02-14 Track circuits Expired GB1404878A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA720969A ZA72969B (en) 1972-02-15 1972-02-15 Improvements in electrical protective circuits
ZA727329 1972-10-13

Publications (1)

Publication Number Publication Date
GB1404878A true GB1404878A (en) 1975-09-10

Family

ID=27131046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB734473A Expired GB1404878A (en) 1972-02-15 1973-02-14 Track circuits

Country Status (5)

Country Link
CA (1) CA973630A (enrdf_load_stackoverflow)
DE (1) DE2307475A1 (enrdf_load_stackoverflow)
FR (1) FR2172312B3 (enrdf_load_stackoverflow)
GB (1) GB1404878A (enrdf_load_stackoverflow)
IT (1) IT977355B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598374B1 (fr) * 1986-05-06 1988-08-26 Signaux Entr Electriques Circuit de voie perfectionne pour appareil de voie de chemin de fer
DE19819167C2 (de) * 1998-04-24 2001-03-22 Siemens Ag Einrichtung zum Behandeln der Fahrten von Bahnfahrzeugen zu Ausweichanschlußstellen

Also Published As

Publication number Publication date
DE2307475A1 (de) 1973-08-23
AU5211473A (en) 1974-08-15
FR2172312B3 (enrdf_load_stackoverflow) 1976-02-13
FR2172312A1 (enrdf_load_stackoverflow) 1973-09-28
CA973630A (en) 1975-08-26
IT977355B (it) 1974-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees