GB139779A - Improvements in or relating to switch-board arrangements particularly for field telephone apparatus - Google Patents

Improvements in or relating to switch-board arrangements particularly for field telephone apparatus

Info

Publication number
GB139779A
GB139779A GB6318/20A GB631820A GB139779A GB 139779 A GB139779 A GB 139779A GB 6318/20 A GB6318/20 A GB 6318/20A GB 631820 A GB631820 A GB 631820A GB 139779 A GB139779 A GB 139779A
Authority
GB
United Kingdom
Prior art keywords
line
contacts
relating
switch
plug
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
GB6318/20A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB139779A publication Critical patent/GB139779A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/52—Arrangements wherein a dial or the like is mechanically coupled to a line selector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/02—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephone Set Structure (AREA)

Abstract

139,779. Siemens & Halske Akt.-Ges., (Assignees of Reuss, F.). March 4,1916, [Convention date]. Exchange switchboards.-A switchboard for a field telephone system consists of a number of separate boxes 1, Figs. 1 and 2, one for each line, each of which is provided with line terminals 2 connected to the spring contacts 5 of a jack 6. The springs 5 normally engage contacts 7 connected to an indicator 10 the circuit of which is broken when a plug 4 is inserted. The line terminals 2 are also connected to spring contacts 14 through which and the contacts 13 the line is connected to the sockets 11 upon the depression of the button 16. The exchange operator's set 20, 21 is connected to one of the several lines, upon the depression of the corresponding button 16, through a plug coupling 11 and plug couplings 11, 22 between the adjacent boxes.
GB6318/20A 1916-03-05 1920-03-02 Improvements in or relating to switch-board arrangements particularly for field telephone apparatus Expired GB139779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE336207T 1916-03-05

Publications (1)

Publication Number Publication Date
GB139779A true GB139779A (en) 1920-07-08

Family

ID=6220115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6318/20A Expired GB139779A (en) 1916-03-05 1920-03-02 Improvements in or relating to switch-board arrangements particularly for field telephone apparatus

Country Status (4)

Country Link
CH (1) CH87307A (en)
DE (1) DE336207C (en)
FR (1) FR506640A (en)
GB (1) GB139779A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953704C (en) * 1953-05-22 1956-12-06 Siemens Ag Hand-operated cord switching device, in particular for establishing telex connections
FR3061020B1 (en) 2016-12-22 2019-05-17 Laboratoire Francais Du Fractionnement Et Des Biotechnologies HUMAN FIBRINOGEN COMPOSITION

Also Published As

Publication number Publication date
FR506640A (en) 1920-08-26
CH87307A (en) 1920-12-01
DE336207C (en) 1921-04-28

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