AU6724774A - Railway signal system with speed determined movement detector - Google Patents

Railway signal system with speed determined movement detector

Info

Publication number
AU6724774A
AU6724774A AU67247/74A AU6724774A AU6724774A AU 6724774 A AU6724774 A AU 6724774A AU 67247/74 A AU67247/74 A AU 67247/74A AU 6724774 A AU6724774 A AU 6724774A AU 6724774 A AU6724774 A AU 6724774A
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
AU493457B2 (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
WILLARD L GEIGER
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 WILLARD L GEIGER filed Critical WILLARD L GEIGER
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

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 vehicle train, e.g. pedals
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current
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
USUS348944 1973-04-09
US00348944A US3850390A (en) 1973-04-09 1973-04-09 Railway signal system with speed determined movement detector

Publications (2)

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

Family

ID=

Also Published As

Publication number Publication date
CA1026859A (en) 1978-02-21
US3850390A (en) 1974-11-26

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