IT1021182B - RAIL CONTROL CIRCUITS - Google Patents

RAIL CONTROL CIRCUITS

Info

Publication number
IT1021182B
IT1021182B IT27063/74A IT2706374A IT1021182B IT 1021182 B IT1021182 B IT 1021182B IT 27063/74 A IT27063/74 A IT 27063/74A IT 2706374 A IT2706374 A IT 2706374A IT 1021182 B IT1021182 B IT 1021182B
Authority
IT
Italy
Prior art keywords
control circuits
rail control
rail
circuits
control
Prior art date
Application number
IT27063/74A
Other languages
Italian (it)
Original Assignee
Gen 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 Gen Signal Corp filed Critical Gen Signal Corp
Application granted granted Critical
Publication of IT1021182B publication Critical patent/IT1021182B/en

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)
IT27063/74A 1973-09-07 1974-09-09 RAIL CONTROL CIRCUITS IT1021182B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US395110A US3897921A (en) 1973-09-07 1973-09-07 Interlocking track circuits

Publications (1)

Publication Number Publication Date
IT1021182B true IT1021182B (en) 1978-01-30

Family

ID=23561733

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27063/74A IT1021182B (en) 1973-09-07 1974-09-09 RAIL CONTROL CIRCUITS

Country Status (8)

Country Link
US (1) US3897921A (en)
JP (1) JPS5072309A (en)
CA (1) CA1020263A (en)
FR (1) FR2243101B1 (en)
GB (1) GB1483642A (en)
IT (1) IT1021182B (en)
NL (1) NL7411317A (en)
ZA (1) ZA744946B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728063A (en) * 1986-08-07 1988-03-01 General Signal Corp. Railway signalling system especially for broken rail detection
US4878638A (en) * 1987-01-12 1989-11-07 General Signal Corporation Combination frequency loop coupling for railway track signalling
US9150228B2 (en) * 2012-07-13 2015-10-06 Grappone Technologies Inc. Track circuit providing enhanced broken rail detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328581A (en) * 1966-06-16 1967-06-27 Westinghouse Air Brake Co Rapid transit speed control system
US3450874A (en) * 1967-03-31 1969-06-17 Gen Electric Railway track circuit
US3526378A (en) * 1967-08-23 1970-09-01 Westinghouse Electric Corp Signaling system for determining the presence of a train vehicle
US3524054A (en) * 1968-01-08 1970-08-11 Gen Signal Corp High frequency track circuits for rail-roads interrelated at switches and crossovers
US3666217A (en) * 1970-05-04 1972-05-30 Gen Signal Corp Track communication system for continuous rail

Also Published As

Publication number Publication date
US3897921A (en) 1975-08-05
CA1020263A (en) 1977-11-01
ZA744946B (en) 1975-08-27
JPS5072309A (en) 1975-06-14
FR2243101A1 (en) 1975-04-04
AU7283674A (en) 1976-03-04
GB1483642A (en) 1977-08-24
FR2243101B1 (en) 1979-01-05
NL7411317A (en) 1975-03-11

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