FR951344A - Improvements to electrical relays intended in particular for signaling devices for railways - Google Patents

Improvements to electrical relays intended in particular for signaling devices for railways

Info

Publication number
FR951344A
FR951344A FR951344DA FR951344A FR 951344 A FR951344 A FR 951344A FR 951344D A FR951344D A FR 951344DA FR 951344 A FR951344 A FR 951344A
Authority
FR
France
Prior art keywords
railways
signaling devices
electrical relays
intended
relays intended
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.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal 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 US304811A external-priority patent/US2285890A/en
Application filed by Union Switch and Signal Inc filed Critical Union Switch and Signal Inc
Application granted granted Critical
Publication of FR951344A publication Critical patent/FR951344A/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 trains
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/12—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only partly operated by train
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by ac
    • H01H51/32—Frequency relays; Mechanically-tuned relays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)
  • Braking Arrangements (AREA)
FR951344D 1939-11-16 1947-08-06 Improvements to electrical relays intended in particular for signaling devices for railways Expired FR951344A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US304811A US2285890A (en) 1939-11-16 1939-11-16 Stationary contact
US431399A US2318738A (en) 1939-11-16 1942-02-18 Holding means for instruments

Publications (1)

Publication Number Publication Date
FR951344A true FR951344A (en) 1949-10-21

Family

ID=26974245

Family Applications (1)

Application Number Title Priority Date Filing Date
FR951344D Expired FR951344A (en) 1939-11-16 1947-08-06 Improvements to electrical relays intended in particular for signaling devices for railways

Country Status (4)

Country Link
US (1) US2318738A (en)
BE (1) BE477674A (en)
FR (1) FR951344A (en)
GB (1) GB560079A (en)

Also Published As

Publication number Publication date
US2318738A (en) 1943-05-11
GB560079A (en) 1944-03-20
BE477674A (en)

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