CA921560A - Signals at highway crossings for high speed trains - Google Patents

Signals at highway crossings for high speed trains

Info

Publication number
CA921560A
CA921560A CA062795A CA62795A CA921560A CA 921560 A CA921560 A CA 921560A CA 062795 A CA062795 A CA 062795A CA 62795 A CA62795 A CA 62795A CA 921560 A CA921560 A CA 921560A
Authority
CA
Canada
Prior art keywords
signals
high speed
speed trains
highway crossings
crossings
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
CA062795A
Inventor
E. Freehafer John
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 Corp
Original Assignee
John E Freehafer
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 John E Freehafer, General Signal Corp filed Critical John E Freehafer
Application granted granted Critical
Publication of CA921560A publication Critical patent/CA921560A/en
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
    • B61L29/28—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 electrically operated
    • B61L29/32—Timing, e.g. advance warning of approaching train
CA062795A 1968-10-18 1969-09-23 Signals at highway crossings for high speed trains Expired CA921560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76863368A 1968-10-18 1968-10-18

Publications (1)

Publication Number Publication Date
CA921560A true CA921560A (en) 1973-02-20

Family

ID=25083043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA062795A Expired CA921560A (en) 1968-10-18 1969-09-23 Signals at highway crossings for high speed trains

Country Status (5)

Country Link
US (1) US3558874A (en)
CA (1) CA921560A (en)
ES (1) ES372679A1 (en)
GB (1) GB1285215A (en)
NL (1) NL160767C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777483A (en) * 1982-10-12 1988-10-11 Robertshaw Controls Company Solid state rotary entry control system
US5092544A (en) * 1989-12-22 1992-03-03 General Railway Signal Corp. Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment
US5098044A (en) * 1989-12-22 1992-03-24 General Railway Signal Corporation Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment
US5954299A (en) * 1991-02-04 1999-09-21 Eva Signal Corporation Railroad crossing traffic warning system apparatus and method therefore
US6113037A (en) 1991-02-04 2000-09-05 Eva Signal Corporation Railroad maintenance-of-way personnel warning system apparatus and method therefor
AU2001274897A1 (en) * 2000-05-25 2001-12-03 Eva Signal Corporation Self-testing train detection system
EP2048055B1 (en) * 2007-10-09 2010-11-24 Siemens Schweiz AG Autonomous level crossing and method for its operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027188A (en) * 1934-05-23 1936-01-07 Associated Electric Lab Inc Highway crossing signaling system
US3268723A (en) * 1963-02-14 1966-08-23 Westinghouse Air Brake Co Highway crossing protection system

Also Published As

Publication number Publication date
ES372679A1 (en) 1971-11-01
US3558874A (en) 1971-01-26
GB1285215A (en) 1972-08-16
NL160767C (en) 1979-12-17
NL6914873A (en) 1970-04-21
NL160767B (en) 1979-07-16

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