GB802409A - Improvements in or relating to control devices responsive to the attraction by an electro-magnet of the armature thereof - Google Patents

Improvements in or relating to control devices responsive to the attraction by an electro-magnet of the armature thereof

Info

Publication number
GB802409A
GB802409A GB31749/56A GB3174956A GB802409A GB 802409 A GB802409 A GB 802409A GB 31749/56 A GB31749/56 A GB 31749/56A GB 3174956 A GB3174956 A GB 3174956A GB 802409 A GB802409 A GB 802409A
Authority
GB
United Kingdom
Prior art keywords
relay
magnet
line
transistor
transformer
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
GB31749/56A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB802409A publication Critical patent/GB802409A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/22—Switches without multi-position wipers
    • H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Relay Circuits (AREA)
GB31749/56A 1955-10-19 1956-10-18 Improvements in or relating to control devices responsive to the attraction by an electro-magnet of the armature thereof Expired GB802409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE802409X 1955-10-19

Publications (1)

Publication Number Publication Date
GB802409A true GB802409A (en) 1958-10-01

Family

ID=20342630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31749/56A Expired GB802409A (en) 1955-10-19 1956-10-18 Improvements in or relating to control devices responsive to the attraction by an electro-magnet of the armature thereof

Country Status (4)

Country Link
US (1) US2911479A (fr)
DE (1) DE1042662B (fr)
GB (1) GB802409A (fr)
NL (2) NL211536A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733297A (en) * 1956-01-31 Multiparty selective signaling and identification system
BE496298A (fr) * 1949-06-24
BE519952A (fr) * 1952-05-16

Also Published As

Publication number Publication date
US2911479A (en) 1959-11-03
NL104705C (fr)
NL211536A (fr)
DE1042662B (de) 1958-11-06

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