GB670695A - Relay controlled cross bar switch and telephone system - Google Patents

Relay controlled cross bar switch and telephone system

Info

Publication number
GB670695A
GB670695A GB3547/48A GB354748A GB670695A GB 670695 A GB670695 A GB 670695A GB 3547/48 A GB3547/48 A GB 3547/48A GB 354748 A GB354748 A GB 354748A GB 670695 A GB670695 A GB 670695A
Authority
GB
United Kingdom
Prior art keywords
relay
magnet
primary
marking
line
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
GB3547/48A
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories 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
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Publication of GB670695A publication Critical patent/GB670695A/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)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Interface Circuits In Exchanges (AREA)
GB3547/48A 1947-02-07 1948-02-06 Relay controlled cross bar switch and telephone system Expired GB670695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US727175A US2519849A (en) 1947-02-07 1947-02-07 Automatic telephone system

Publications (1)

Publication Number Publication Date
GB670695A true GB670695A (en) 1952-04-23

Family

ID=24921624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3547/48A Expired GB670695A (en) 1947-02-07 1948-02-06 Relay controlled cross bar switch and telephone system

Country Status (3)

Country Link
US (1) US2519849A (US07534539-20090519-C00280.png)
FR (1) FR962487A (US07534539-20090519-C00280.png)
GB (1) GB670695A (US07534539-20090519-C00280.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651682A (en) * 1948-05-18 1953-09-08 Int Standard Electric Corp Flat crossbar switch mechanism
BE495462A (US07534539-20090519-C00280.png) * 1949-05-02
GB744126A (en) * 1950-10-25 1956-02-01 Automatic Telephone & Elect Improvements in or relating to telecommunication systems
US2731516A (en) * 1951-12-14 1956-01-17 Andrew W Vincent Coordinate electrical switching means
US2876292A (en) * 1952-03-22 1959-03-03 North Electric Co Switching apparatus and arrangements for automatic telephone systems
NL180661B (nl) * 1952-09-10 Boehringer Mannheim Gmbh Werkwijze voor de bereiding van geneesmiddelen, voorwerpen en hydrazinederivaten met bloedsuikerspiegel-verlagende werking.
US2725428A (en) * 1953-01-06 1955-11-29 Itt Multi-group primary-secondary-spread crossbar telephone system
BE527998A (US07534539-20090519-C00280.png) * 1953-04-29

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1168419A (en) * 1913-12-16 1916-01-18 Western Electric Co Selector-switch.
US1563658A (en) * 1922-06-01 1925-12-01 Western Electric Co Line switch
US2027463A (en) * 1933-10-07 1936-01-14 American Telephone & Telegraph Telephone system
US2118935A (en) * 1936-08-06 1938-05-31 Bell Telephone Labor Inc Switch mechanism
US2250101A (en) * 1939-12-07 1941-07-22 Bell Telephone Labor Inc Telephone system
US2298205A (en) * 1940-03-23 1942-10-06 Bell Telephone Labor Inc Telephone system
US2285985A (en) * 1940-12-28 1942-06-09 Bell Telephone Labor Inc Step-by-step operated crossbar switch
US2348301A (en) * 1942-10-31 1944-05-09 Automatic Elect Lab Telephone system
GB571520A (en) * 1944-01-12 1945-08-28 Siemens Brothers & Co Ltd Improvements relating to electric selective signalling systems

Also Published As

Publication number Publication date
FR962487A (US07534539-20090519-C00280.png) 1950-06-10
US2519849A (en) 1950-08-22

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