GB1216033A - An electric safety-box - Google Patents

An electric safety-box

Info

Publication number
GB1216033A
GB1216033A GB07404/69A GB1740469A GB1216033A GB 1216033 A GB1216033 A GB 1216033A GB 07404/69 A GB07404/69 A GB 07404/69A GB 1740469 A GB1740469 A GB 1740469A GB 1216033 A GB1216033 A GB 1216033A
Authority
GB
United Kingdom
Prior art keywords
relay
locked
button
relays
illuminated
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
GB07404/69A
Other languages
English (en)
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.)
Nord Aviation Societe Nationale de Constructions Aeronautiques
Original Assignee
Nord Aviation Societe Nationale de Constructions Aeronautiques
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 Nord Aviation Societe Nationale de Constructions Aeronautiques filed Critical Nord Aviation Societe Nationale de Constructions Aeronautiques
Publication of GB1216033A publication Critical patent/GB1216033A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit

Landscapes

  • Safety Devices In Control Systems (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Relay Circuits (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
GB07404/69A 1968-04-04 1969-04-02 An electric safety-box Expired GB1216033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147069 1968-04-04

Publications (1)

Publication Number Publication Date
GB1216033A true GB1216033A (en) 1970-12-16

Family

ID=8648612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB07404/69A Expired GB1216033A (en) 1968-04-04 1969-04-02 An electric safety-box

Country Status (4)

Country Link
US (1) US3579048A (enrdf_load_stackoverflow)
DE (1) DE1917459C3 (enrdf_load_stackoverflow)
FR (1) FR1572325A (enrdf_load_stackoverflow)
GB (1) GB1216033A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303383A (en) * 1979-11-09 1981-12-01 Honeywell Inc. Condition control system with safety feedback means
DE3619723A1 (de) * 1986-06-12 1987-12-17 Kloeckner Moeller Elektrizit Kontaktbehaftete zusatzsteuerung fuer sicherheitsstromkreise
WO2005082765A1 (ja) * 2004-02-26 2005-09-09 Mitsubishi Denki Kabushiki Kaisha エレベータ安全装置及びその動作試験方法
CN107567423B (zh) * 2015-03-20 2020-02-18 奥的斯电梯公司 电梯测试布置
EP3196913B1 (en) * 2016-01-20 2019-04-10 Schneider Electric Industries SAS Relay circuit and method for performing self-test of relay circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786989A (en) * 1954-09-28 1957-03-26 Rca Corp Automatic control alarm system

Also Published As

Publication number Publication date
DE1917459B2 (de) 1979-11-15
US3579048A (en) 1971-05-18
DE1917459A1 (de) 1969-11-13
FR1572325A (enrdf_load_stackoverflow) 1969-06-27
DE1917459C3 (de) 1980-07-24

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