DE291849C - - Google Patents

Info

Publication number
DE291849C
DE291849C DENDAT291849D DE291849DA DE291849C DE 291849 C DE291849 C DE 291849C DE NDAT291849 D DENDAT291849 D DE NDAT291849D DE 291849D A DE291849D A DE 291849DA DE 291849 C DE291849 C DE 291849C
Authority
DE
Germany
Prior art keywords
number switch
dial
chain
coupling
switch according
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.)
Active
Application number
DENDAT291849D
Other languages
German (de)
English (en)
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.)
Publication of DE291849C publication Critical patent/DE291849C/de
Active 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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Keying Circuit Devices (AREA)
  • Transmission Devices (AREA)
DENDAT291849D 1920-12-01 Active DE291849C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES54895D DE383231C (de) 1920-12-01 1920-12-01 Nummernschalter fuer selbsttaetig oder halbselbsttaetig betriebene Fernsprechanlagen

Publications (1)

Publication Number Publication Date
DE291849C true DE291849C (xx)

Family

ID=7490097

Family Applications (6)

Application Number Title Priority Date Filing Date
DENDAT291849D Active DE291849C (xx) 1920-12-01
DENDAT292121D Active DE292121C (xx) 1920-12-01
DENDAT276887D Active DE276887C (xx) 1920-12-01
DENDAT284512D Active DE284512C (xx) 1920-12-01
DENDAT280700D Active DE280700C (xx) 1920-12-01
DES54895D Expired DE383231C (de) 1920-12-01 1920-12-01 Nummernschalter fuer selbsttaetig oder halbselbsttaetig betriebene Fernsprechanlagen

Family Applications After (5)

Application Number Title Priority Date Filing Date
DENDAT292121D Active DE292121C (xx) 1920-12-01
DENDAT276887D Active DE276887C (xx) 1920-12-01
DENDAT284512D Active DE284512C (xx) 1920-12-01
DENDAT280700D Active DE280700C (xx) 1920-12-01
DES54895D Expired DE383231C (de) 1920-12-01 1920-12-01 Nummernschalter fuer selbsttaetig oder halbselbsttaetig betriebene Fernsprechanlagen

Country Status (2)

Country Link
DE (6) DE383231C (xx)
NL (2) NL3096C (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822365C (de) * 1949-10-04 1951-11-26 Ruhrgas Ag Impulsgebevorrichtung fuer Fernuebertragung elektrischer Stromstoesse bei kontinuierlich registrierenden Fernmessanlagen
EP0013430A1 (en) * 1979-01-08 1980-07-23 THE PLESSEY COMPANY plc Improvements in or relating to dial units for telephone sets

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161320B (de) * 1961-08-24 1964-01-16 Fernsprecher Ges M B H Deutsch Telefonapparat, bei dem das Apparatgehaeuse auf die Montagebasis mit gehaltertem Nummernschalter aufsetzbar ist

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822365C (de) * 1949-10-04 1951-11-26 Ruhrgas Ag Impulsgebevorrichtung fuer Fernuebertragung elektrischer Stromstoesse bei kontinuierlich registrierenden Fernmessanlagen
EP0013430A1 (en) * 1979-01-08 1980-07-23 THE PLESSEY COMPANY plc Improvements in or relating to dial units for telephone sets

Also Published As

Publication number Publication date
DE383231C (de) 1923-10-11
NL4801C (xx)
DE280700C (xx)
DE276887C (xx)
NL3096C (xx)
DE292121C (xx)
DE284512C (xx)

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