GB487476A - Telegraph line circuits for teleprinter exchange systems - Google Patents

Telegraph line circuits for teleprinter exchange systems

Info

Publication number
GB487476A
GB487476A GB27959/37A GB2795937A GB487476A GB 487476 A GB487476 A GB 487476A GB 27959/37 A GB27959/37 A GB 27959/37A GB 2795937 A GB2795937 A GB 2795937A GB 487476 A GB487476 A GB 487476A
Authority
GB
United Kingdom
Prior art keywords
relay
line
relays
subscriber
release
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
GB27959/37A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB487476A publication Critical patent/GB487476A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/04—Switchboards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0108—Winches, capstans or pivots with devices for paying out or automatically tightening the cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB27959/37A 1936-10-14 1937-10-14 Telegraph line circuits for teleprinter exchange systems Expired GB487476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105582A US2151772A (en) 1936-10-14 1936-10-14 Telegraph line circuit

Publications (1)

Publication Number Publication Date
GB487476A true GB487476A (en) 1938-06-21

Family

ID=22306642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27959/37A Expired GB487476A (en) 1936-10-14 1937-10-14 Telegraph line circuits for teleprinter exchange systems

Country Status (5)

Country Link
US (1) US2151772A (enrdf_load_stackoverflow)
BE (1) BE424061A (enrdf_load_stackoverflow)
DE (1) DE693292C (enrdf_load_stackoverflow)
FR (1) FR827821A (enrdf_load_stackoverflow)
GB (1) GB487476A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR827821A (fr) 1938-05-04
BE424061A (enrdf_load_stackoverflow) 1937-11-30
DE693292C (de) 1940-07-05
US2151772A (en) 1939-03-28

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