ZA744597B - Improvement in or relating to alternate-polarity pulsed track circuits - Google Patents

Improvement in or relating to alternate-polarity pulsed track circuits

Info

Publication number
ZA744597B
ZA744597B ZA00744597A ZA744597A ZA744597B ZA 744597 B ZA744597 B ZA 744597B ZA 00744597 A ZA00744597 A ZA 00744597A ZA 744597 A ZA744597 A ZA 744597A ZA 744597 B ZA744597 B ZA 744597B
Authority
ZA
South Africa
Prior art keywords
alternate
relating
improvement
track circuits
polarity pulsed
Prior art date
Application number
ZA00744597A
Other languages
English (en)
Inventor
D Laurent
Original Assignee
Jeumont Schneider
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 Jeumont Schneider filed Critical Jeumont Schneider
Publication of ZA744597B publication Critical patent/ZA744597B/xx

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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
ZA00744597A 1973-08-10 1974-07-18 Improvement in or relating to alternate-polarity pulsed track circuits ZA744597B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7329282A FR2240673A5 (en) 1973-08-10 1973-08-10 Railway system AC pulsed track circuits - eliminates stray interference effects from return traction current

Publications (1)

Publication Number Publication Date
ZA744597B true ZA744597B (en) 1975-07-30

Family

ID=9123858

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00744597A ZA744597B (en) 1973-08-10 1974-07-18 Improvement in or relating to alternate-polarity pulsed track circuits

Country Status (6)

Country Link
BE (1) BE818563A (enrdf_load_html_response)
CA (1) CA1013062A (enrdf_load_html_response)
FR (1) FR2240673A5 (enrdf_load_html_response)
IN (1) IN140794B (enrdf_load_html_response)
TR (1) TR18141A (enrdf_load_html_response)
ZA (1) ZA744597B (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461626A1 (fr) * 1979-07-16 1981-02-06 Jeumont Schneider Dispositif d'alimentation et de controle du bon fonctionnement d'un feu de signalisation ferroviaire
FR2591980B1 (fr) * 1985-12-23 1988-02-12 Jeumont Schneider Dispositif d'extraction du signal impulsionnel parmi des signaux parasites dans un recepteur d'un circuit de voie ferroviaire
GB2278005B (en) * 1993-05-14 1997-01-15 Westinghouse Brake & Signal Impedance bonds

Also Published As

Publication number Publication date
CA1013062A (fr) 1977-06-28
IN140794B (enrdf_load_html_response) 1976-12-25
BE818563A (fr) 1974-12-02
FR2240673A5 (en) 1975-03-07
TR18141A (tr) 1976-10-08
AU7176274A (en) 1976-01-29

Similar Documents

Publication Publication Date Title
ZA734889B (en) Improvements in or relating to balustrade units
ZA731896B (en) Improvements in or relating to ozonisers
ZA706973B (en) Improvements in or relating to type-printing mechanisms
ZA737374B (en) Improvements in or relating to rail track assemblies
ZA717472B (en) Improvements in or relating to curtain tracks
ZA714728B (en) Improvements in or relating to pulse counter circuits
ZA706753B (en) Improvements in or relating to railway vehicles
HK5778A (en) Improvements in or relating to relay circuits
ZA732609B (en) Improvements in or relating to wagon tipplers
ZA748B (en) Improvements in or relating to conveyors
ZA702211B (en) Improvements in or relating to stud-welding
ZA744597B (en) Improvement in or relating to alternate-polarity pulsed track circuits
ZA741309B (en) Improvements in or relating to packagung
ZA716503B (en) Improvements in or relating to selecting circuits
IE34329B1 (en) Improvements in or relating to boards
ZA706699B (en) Improvements in or relating to inflatable barriers
AU493339B2 (en) Improvement in or relating to alternate-polarity pulsed track circuits
HK678A (en) Improvements in or relating to molecular models
ZA735692B (en) Improvements in or relating to pulse-generating circuits
ZA747532B (en) Improvements in or relatig to switching circuits
ZA705686B (en) Improvements in or relating to splints
ZA728952B (en) Improvements in or relating to vehicles
ZA738006B (en) Improvements in or relating to woolgrease
ZA71202B (en) Improvements in or relating to screw-pumps
ZA714216B (en) Improvements in or relating to frequency control circuits