ES295765A1 - Sistema de protecciën de pasos a nivel - Google Patents

Sistema de protecciën de pasos a nivel

Info

Publication number
ES295765A1
ES295765A1 ES0295765A ES295765A ES295765A1 ES 295765 A1 ES295765 A1 ES 295765A1 ES 0295765 A ES0295765 A ES 0295765A ES 295765 A ES295765 A ES 295765A ES 295765 A1 ES295765 A1 ES 295765A1
Authority
ES
Spain
Prior art keywords
track
circuits
superimposed
circuit
section
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
ES0295765A
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
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 Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of ES295765A1 publication Critical patent/ES295765A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
ES0295765A 1963-02-14 1964-01-27 Sistema de protecciën de pasos a nivel Expired ES295765A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US258434A US3268723A (en) 1963-02-14 1963-02-14 Highway crossing protection system

Publications (1)

Publication Number Publication Date
ES295765A1 true ES295765A1 (es) 1964-03-16

Family

ID=22980537

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0295765A Expired ES295765A1 (es) 1963-02-14 1964-01-27 Sistema de protecciën de pasos a nivel

Country Status (3)

Country Link
US (1) US3268723A (es)
BR (1) BR6456607D0 (es)
ES (1) ES295765A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359416A (en) * 1965-03-29 1967-12-19 Gen Signal Corp Continuous rail track circuits
US3558874A (en) * 1968-10-18 1971-01-26 Gen Signal Corp Signals at highway crossings for high speed trains
US3660652A (en) * 1970-04-27 1972-05-02 Westinghouse Air Brake Co Highway crossing signal system
US4026505A (en) * 1976-01-15 1977-05-31 Harmon Industries, Inc. Variable high pass coupler
US8590844B2 (en) 2009-07-17 2013-11-26 Siemens Rail Auotmation Corporation Track circuit communications
US8500071B2 (en) * 2009-10-27 2013-08-06 Invensys Rail Corporation Method and apparatus for bi-directional downstream adjacent crossing signaling
US8660215B2 (en) * 2010-03-16 2014-02-25 Siemens Rail Automation Corporation Decoding algorithm for frequency shift key communications
US8297558B2 (en) * 2010-03-17 2012-10-30 Safetran Systems Corporation Crossing predictor with authorized track speed input

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2248397A (en) * 1940-03-12 1941-07-08 Union Switch & Signal Co Railway traffic controlling apparatus
US2881309A (en) * 1954-04-02 1959-04-07 Gen Railway Signal Co Highway crossing with insulated track section at crossing
DE1005553B (de) * 1955-04-12 1957-04-04 Siemens Ag UEberwegsignaleinrichtung
US3025393A (en) * 1957-07-16 1962-03-13 Gen Railway Signal Co Highway crossing signal control system
US3046454A (en) * 1957-11-14 1962-07-24 Westinghouse Air Brake Co Code detecting apparatus
US3046392A (en) * 1958-03-03 1962-07-24 Westinghouse Air Brake Co Control circuits
US3035167A (en) * 1958-12-03 1962-05-15 Westinghouse Air Brake Co Railway track circuit
US3004150A (en) * 1959-08-04 1961-10-10 Westinghouse Air Brake Co Highway crossing protection systems
US3069542A (en) * 1960-06-07 1962-12-18 Westinghouse Air Brake Co Railway track circuits

Also Published As

Publication number Publication date
US3268723A (en) 1966-08-23
BR6456607D0 (pt) 1973-04-12

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