GB491755A - Automatic impulse emitter for telephonic apparatus - Google Patents

Automatic impulse emitter for telephonic apparatus

Info

Publication number
GB491755A
GB491755A GB25460/37A GB2546037A GB491755A GB 491755 A GB491755 A GB 491755A GB 25460/37 A GB25460/37 A GB 25460/37A GB 2546037 A GB2546037 A GB 2546037A GB 491755 A GB491755 A GB 491755A
Authority
GB
United Kingdom
Prior art keywords
digit
arm
switch
impulse
carriage
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
GB25460/37A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB491755A publication Critical patent/GB491755A/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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • 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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • 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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Electrotherapy Devices (AREA)
GB25460/37A 1936-09-18 1937-09-20 Automatic impulse emitter for telephonic apparatus Expired GB491755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE491755X 1936-09-18

Publications (1)

Publication Number Publication Date
GB491755A true GB491755A (en) 1938-09-08

Family

ID=3870606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25460/37A Expired GB491755A (en) 1936-09-18 1937-09-20 Automatic impulse emitter for telephonic apparatus

Country Status (4)

Country Link
DE (1) DE709541C (en:Method)
FR (1) FR827339A (en:Method)
GB (1) GB491755A (en:Method)
NL (1) NL52050C (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561298A (en) * 1948-01-30 1951-07-17 Vanheerswynghels Joseph Impulse transmitter for automatic telephone systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034700B (de) * 1956-07-25 1958-07-24 Hermann Ries Dipl Ing Selbstwaehleinrichtung fuer Telefonapparate zur Stromstossgabe fuer die zu waehlende Nummer
US3111562A (en) * 1959-04-07 1963-11-19 Kanda Tsushin Kogyo Kabushiki Automatic telephone calling system utilizing punched cards
DE1256264B (de) * 1963-09-19 1967-12-14 Holzer Patent Ag Stromstossgeber, insbesondere fuer Fernsprechanlagen, durch den Fernsprechnummern durch Verstellen einer Nummerneinstellvorrichtung selbsttaetig ausgesendet werden koennen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561298A (en) * 1948-01-30 1951-07-17 Vanheerswynghels Joseph Impulse transmitter for automatic telephone systems

Also Published As

Publication number Publication date
DE709541C (de) 1941-08-21
FR827339A (fr) 1938-04-25
NL52050C (en:Method)

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