FR389320A - Improvements in relays for alternating current - Google Patents

Improvements in relays for alternating current

Info

Publication number
FR389320A
FR389320A FR389320DA FR389320A FR 389320 A FR389320 A FR 389320A FR 389320D A FR389320D A FR 389320DA FR 389320 A FR389320 A FR 389320A
Authority
FR
France
Prior art keywords
relays
alternating current
alternating
current
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.)
Siemens Mobility Ltd
Westinghouse Brakes Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Westinghouse Brakes Ltd
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 Westinghouse Brake and Signal Co Ltd, Westinghouse Brakes Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Application granted granted Critical
Publication of FR389320A publication Critical patent/FR389320A/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 train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
FR389320D 1907-04-18 1908-04-17 Improvements in relays for alternating current Expired FR389320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389320XA 1907-04-18 1907-04-18

Publications (1)

Publication Number Publication Date
FR389320A true FR389320A (en) 1908-09-05

Family

ID=1434933

Family Applications (1)

Application Number Title Priority Date Filing Date
FR389320D Expired FR389320A (en) 1907-04-18 1908-04-17 Improvements in relays for alternating current

Country Status (1)

Country Link
FR (1) FR389320A (en)

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