GB357620A - Improvements in call metering circuits in telephone systems - Google Patents

Improvements in call metering circuits in telephone systems

Info

Publication number
GB357620A
GB357620A GB18663/30A GB1866330A GB357620A GB 357620 A GB357620 A GB 357620A GB 18663/30 A GB18663/30 A GB 18663/30A GB 1866330 A GB1866330 A GB 1866330A GB 357620 A GB357620 A GB 357620A
Authority
GB
United Kingdom
Prior art keywords
meter
metering
operated
rectifier
springs
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
GB18663/30A
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 GB357620A publication Critical patent/GB357620A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • F16K5/0257—Packings
    • F16K5/0271—Packings between housing and plug
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
GB18663/30A 1929-06-21 1930-06-18 Improvements in call metering circuits in telephone systems Expired GB357620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE357620X 1929-06-21

Publications (1)

Publication Number Publication Date
GB357620A true GB357620A (en) 1931-09-18

Family

ID=20308835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18663/30A Expired GB357620A (en) 1929-06-21 1930-06-18 Improvements in call metering circuits in telephone systems

Country Status (5)

Country Link
US (1) US1833586A (fr)
BE (1) BE371304A (fr)
DE (1) DE606072C (fr)
FR (1) FR697616A (fr)
GB (1) GB357620A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969460C (de) * 1954-04-08 1958-06-04 Friedrich Merk Telefonbau Ag Schaltungsanordnung fuer die Steuerung ueberlagerter Stromkreise in kleinen Fernsprechnebenstellenanlagen

Also Published As

Publication number Publication date
DE606072C (de) 1934-11-24
BE371304A (fr)
US1833586A (en) 1931-11-24
FR697616A (fr) 1931-01-20

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