FR791609A - Improvements to railway tracks - Google Patents

Improvements to railway tracks

Info

Publication number
FR791609A
FR791609A FR791609DA FR791609A FR 791609 A FR791609 A FR 791609A FR 791609D A FR791609D A FR 791609DA FR 791609 A FR791609 A FR 791609A
Authority
FR
France
Prior art keywords
railway tracks
railway
tracks
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
Other languages
French (fr)
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
General Railway Signal 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 General Railway Signal Co filed Critical General Railway Signal Co
Application granted granted Critical
Publication of FR791609A publication Critical patent/FR791609A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
    • B61L23/08—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only
    • B61L23/14—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only automatically operated
    • B61L23/16—Track circuits specially adapted for section blocking
    • B61L23/163—Track circuits specially adapted for section blocking using direct current
FR791609D 1934-07-28 1935-06-21 Improvements to railway tracks Expired FR791609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US791609XA 1934-07-28 1934-07-28

Publications (1)

Publication Number Publication Date
FR791609A true FR791609A (en) 1935-12-14

Family

ID=22148808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR791609D Expired FR791609A (en) 1934-07-28 1935-06-21 Improvements to railway tracks

Country Status (1)

Country Link
FR (1) FR791609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959108C (en) * 1951-02-07 1957-02-28 Ericsson Telefon Ab L M Circuit arrangement in relay interlocking systems in railway security

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959108C (en) * 1951-02-07 1957-02-28 Ericsson Telefon Ab L M Circuit arrangement in relay interlocking systems in railway security

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