CH307821A - Speed regulator for telephone station call dial. - Google Patents

Speed regulator for telephone station call dial.

Info

Publication number
CH307821A
CH307821A CH307821DA CH307821A CH 307821 A CH307821 A CH 307821A CH 307821D A CH307821D A CH 307821DA CH 307821 A CH307821 A CH 307821A
Authority
CH
Switzerland
Prior art keywords
speed regulator
telephone station
station call
call dial
dial
Prior art date
Application number
Other languages
French (fr)
Inventor
Telephone Et Radio S Standard
Original Assignee
Standard Telephone & Radio Sa
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 & Radio Sa filed Critical Standard Telephone & Radio Sa
Publication of CH307821A publication Critical patent/CH307821A/en

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
    • H04M1/315—Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Crushing And Grinding (AREA)
CH307821D 1950-02-06 1951-02-06 Speed regulator for telephone station call dial. CH307821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL307821X 1950-02-06

Publications (1)

Publication Number Publication Date
CH307821A true CH307821A (en) 1955-06-15

Family

ID=19783544

Family Applications (1)

Application Number Title Priority Date Filing Date
CH307821D CH307821A (en) 1950-02-06 1951-02-06 Speed regulator for telephone station call dial.

Country Status (5)

Country Link
BE (1) BE501002A (en)
CH (1) CH307821A (en)
DE (1) DE881364C (en)
FR (1) FR1039620A (en)
NL (1) NL76393C (en)

Also Published As

Publication number Publication date
NL76393C (en)
FR1039620A (en) 1953-10-08
DE881364C (en) 1953-06-29
BE501002A (en)

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