BE477782A - - Google Patents

Info

Publication number
BE477782A
BE477782A BE477782DA BE477782A BE 477782 A BE477782 A BE 477782A BE 477782D A BE477782D A BE 477782DA BE 477782 A BE477782 A BE 477782A
Authority
BE
Belgium
Application number
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.)
Publication of BE477782A publication Critical patent/BE477782A/xx

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Breakers (AREA)
  • Food-Manufacturing Devices (AREA)
BE477782D 1940-09-07 BE477782A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355793A US2300790A (en) 1940-09-07 1940-09-07 Electrical relay

Publications (1)

Publication Number Publication Date
BE477782A true BE477782A (enrdf_load_html_response)

Family

ID=23398871

Family Applications (2)

Application Number Title Priority Date Filing Date
BE477696D BE477696A (enrdf_load_html_response) 1940-09-07
BE477782D BE477782A (enrdf_load_html_response) 1940-09-07

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE477696D BE477696A (enrdf_load_html_response) 1940-09-07

Country Status (4)

Country Link
US (1) US2300790A (enrdf_load_html_response)
BE (2) BE477782A (enrdf_load_html_response)
FR (2) FR950558A (enrdf_load_html_response)
GB (1) GB546980A (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439248A (en) * 1943-10-04 1948-04-06 Gregory Motors Inc Electromotor
US2485624A (en) * 1944-08-29 1949-10-25 Int Standard Electric Corp Vibrator relay
DE851075C (de) * 1949-12-18 1952-10-02 Siemens Ag Anordnung bei Relais im Eisenbahnsicherungswesen

Also Published As

Publication number Publication date
GB546980A (en) 1942-08-07
FR62303E (fr) 1955-06-13
BE477696A (enrdf_load_html_response)
FR950558A (fr) 1949-09-30
US2300790A (en) 1942-11-03

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