GB1336690A - Control of multiple highway crossings - Google Patents

Control of multiple highway crossings

Info

Publication number
GB1336690A
GB1336690A GB2706672*[A GB2706672A GB1336690A GB 1336690 A GB1336690 A GB 1336690A GB 2706672 A GB2706672 A GB 2706672A GB 1336690 A GB1336690 A GB 1336690A
Authority
GB
United Kingdom
Prior art keywords
relay
voltage
train
computer
warning
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
GB2706672*[A
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.)
SPX Technologies Inc
Original Assignee
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 General Signal Corp filed Critical General Signal Corp
Publication of GB1336690A publication Critical patent/GB1336690A/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
    • B61L29/288—Wiring diagram of the signal control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB2706672*[A 1971-06-14 1972-09-09 Control of multiple highway crossings Expired GB1336690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15284871A 1971-06-14 1971-06-14

Publications (1)

Publication Number Publication Date
GB1336690A true GB1336690A (en) 1973-11-07

Family

ID=22544706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2706672*[A Expired GB1336690A (en) 1971-06-14 1972-09-09 Control of multiple highway crossings

Country Status (9)

Country Link
US (1) US3734434A (enExample)
AR (1) AR196406A1 (enExample)
BR (1) BR7203834D0 (enExample)
CA (1) CA939775A (enExample)
ES (1) ES403849A1 (enExample)
FR (1) FR2142411A5 (enExample)
GB (1) GB1336690A (enExample)
IT (1) IT958341B (enExample)
NL (1) NL7207966A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307860A (en) * 1979-07-30 1981-12-29 American Standard Inc. Railroad grade crossing constant warning protection system
US9925995B1 (en) * 2015-02-03 2018-03-27 Bnsf Railway Company Highway crossing out-of-service controller

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390256A (en) * 1963-09-18 1968-06-25 Marquardt Corp Predictor self-check system for analog computer
US3422262A (en) * 1966-02-01 1969-01-14 Gen Signal Corp Highway crossing signal control system

Also Published As

Publication number Publication date
US3734434A (en) 1973-05-22
NL7207966A (enExample) 1972-12-18
IT958341B (it) 1973-10-20
ES403849A1 (es) 1975-11-16
FR2142411A5 (enExample) 1973-01-26
BR7203834D0 (pt) 1973-05-24
AR196406A1 (es) 1973-12-27
CA939775A (en) 1974-01-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees