FR1057890A - Relais sensible à un code avec contacts de décodage de fréquence - Google Patents

Relais sensible à un code avec contacts de décodage de fréquence

Info

Publication number
FR1057890A
FR1057890A FR1057890DA FR1057890A FR 1057890 A FR1057890 A FR 1057890A FR 1057890D A FR1057890D A FR 1057890DA FR 1057890 A FR1057890 A FR 1057890A
Authority
FR
France
Prior art keywords
frequency decoding
sensitive relay
contacts
code sensitive
code
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
English (en)
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake 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 Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Application granted granted Critical
Publication of FR1057890A publication Critical patent/FR1057890A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Electromagnets (AREA)
FR1057890D 1951-02-10 1951-11-22 Relais sensible à un code avec contacts de décodage de fréquence Expired FR1057890A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US210358A US2730592A (en) 1951-02-10 1951-02-10 Code following relay with frequency decoding contacts

Publications (1)

Publication Number Publication Date
FR1057890A true FR1057890A (fr) 1954-03-11

Family

ID=22782597

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1057890D Expired FR1057890A (fr) 1951-02-10 1951-11-22 Relais sensible à un code avec contacts de décodage de fréquence

Country Status (3)

Country Link
US (1) US2730592A (xx)
BE (1) BE507483A (xx)
FR (1) FR1057890A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900581A (en) * 1954-07-27 1959-08-18 Gen Railway Signal Co Mechanically resonant decoding apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US587838A (en) * 1897-08-10 Circuit-breaker
US1088771A (en) * 1903-06-15 1914-03-03 Kellogg Switchboard & Supply Electromagnetic device.
US1174229A (en) * 1909-05-07 1916-03-07 Hall Switch & Signal Co Railway signaling system.
US1106432A (en) * 1913-05-10 1914-08-11 Connecticut Telephone & Elec Ignition system.
US1680667A (en) * 1922-10-03 1928-08-14 Western Electric Co Electromagnetic device
US1724825A (en) * 1926-09-03 1929-08-13 Cie Pour La Fabrications Des C Electromechanical relay motor
CH165281A (fr) * 1932-01-29 1933-11-15 Cfcmug Dispositif vibratoire.
US1975652A (en) * 1934-01-04 1934-10-02 Union Switch & Signal Co Electrical relay
US2113617A (en) * 1935-04-19 1938-04-12 Ibm Relay
US2145821A (en) * 1935-06-04 1939-01-31 Wallace & Tiernan Inc Selective relay
US2057605A (en) * 1936-01-16 1936-10-13 Union Switch & Signal Co Electrical relay
US2163195A (en) * 1936-10-08 1939-06-20 American Telephone & Telegraph Mechanical relay
US2125130A (en) * 1936-12-31 1938-07-26 Westinghouse Electric & Mfg Co Control device for circuit breakers

Also Published As

Publication number Publication date
BE507483A (xx)
US2730592A (en) 1956-01-10

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