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
• • 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
• • 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)
• Transmission Devices (AREA)
• Basic Packing Technique (AREA)
• Braking Arrangements (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=25618795

Family Applications (1)

Country Status (7)

Family Cites Families (6)

• 0
  • NL NL299124D patent/NL299124A/xx unknown
  • BE BE638569D patent/BE638569A/xx unknown
• 1963
  • 1963-10-08 US US314729A patent/US3305643A/en not_active Expired - Lifetime
  • 1963-10-10 SE SE11141/63A patent/SE303316B/xx unknown
  • 1963-10-11 DE DET24873A patent/DE1264521B/de active Pending
  • 1963-10-11 ES ES0292407A patent/ES292407A1/es not_active Expired
  • 1963-10-11 GB GB40278/63A patent/GB1024066A/en not_active Expired

Also Published As

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