AU493457B2 - Railway signal system with speed determined movement detector - Google Patents

Railway signal system with speed determined movement detector

Info

Publication number
AU493457B2
AU493457B2 AU67247/74A AU6724774A AU493457B2 AU 493457 B2 AU493457 B2 AU 493457B2 AU 67247/74 A AU67247/74 A AU 67247/74A AU 6724774 A AU6724774 A AU 6724774A AU 493457 B2 AU493457 B2 AU 493457B2
Authority
AU
Australia
Prior art keywords
signal system
speed determined
railway signal
movement detector
determined movement
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
AU67247/74A
Other versions
AU6724774A (en
Inventor
L. Geiger Willard
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.)
HARMON INDUSTRIES Inc
Original Assignee
HARMON INDUSTRIES Inc
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
Priority claimed from US00348944A external-priority patent/US3850390A/en
Application filed by HARMON INDUSTRIES Inc filed Critical HARMON INDUSTRIES Inc
Application granted granted Critical
Publication of AU493457B2 publication Critical patent/AU493457B2/en
Publication of AU6724774A publication Critical patent/AU6724774A/en
Expired legal-status Critical Current

Links

AU67247/74A 1973-04-09 1974-03-28 Railway signal system with speed determined movement detector Expired AU493457B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00348944A US3850390A (en) 1973-04-09 1973-04-09 Railway signal system with speed determined movement detector
USUS348944 1973-04-09

Publications (2)

Publication Number Publication Date
AU493457B2 true AU493457B2 (en) 1975-10-02
AU6724774A AU6724774A (en) 1975-10-02

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624830B2 (en) * 1988-06-23 1992-06-25 Sasib S.P.A. Broken rail and/or broken rail joint bar detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624830B2 (en) * 1988-06-23 1992-06-25 Sasib S.P.A. Broken rail and/or broken rail joint bar detection

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