GB327768A - Improvements in or relating to impulse transmitters for use in telephone or like systems - Google Patents

Improvements in or relating to impulse transmitters for use in telephone or like systems

Info

Publication number
GB327768A
GB327768A GB172029A GB172029A GB327768A GB 327768 A GB327768 A GB 327768A GB 172029 A GB172029 A GB 172029A GB 172029 A GB172029 A GB 172029A GB 327768 A GB327768 A GB 327768A
Authority
GB
United Kingdom
Prior art keywords
telephone
relating
systems
spring
impulse transmitters
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
GB172029A
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing Co Ltd
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 Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Priority to GB172029A priority Critical patent/GB327768A/en
Publication of GB327768A publication Critical patent/GB327768A/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
    • H04M1/30—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Braking Arrangements (AREA)

Abstract

327,768. Automatic Telephone Manufacturing Co., Ltd., and Smith, S. R. Jan. 17, 1929. Brakes actuated by speed regulators.-The governor shaft 3 of an impulse transmitter is capable of axial movement against the action of the spring 22. If excessive dial speeds occur the resistance of spring 22 is overcome and the governor balls 26 are allowed to bear on the end surface as well as the side surface of the cup 25 providing additional braking effect. Specification 190,017, [Class 40 (iv), Telephones, &c.], is referred to.
GB172029A 1929-01-17 1929-01-17 Improvements in or relating to impulse transmitters for use in telephone or like systems Expired GB327768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB172029A GB327768A (en) 1929-01-17 1929-01-17 Improvements in or relating to impulse transmitters for use in telephone or like systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB172029A GB327768A (en) 1929-01-17 1929-01-17 Improvements in or relating to impulse transmitters for use in telephone or like systems

Publications (1)

Publication Number Publication Date
GB327768A true GB327768A (en) 1930-04-17

Family

ID=9726833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB172029A Expired GB327768A (en) 1929-01-17 1929-01-17 Improvements in or relating to impulse transmitters for use in telephone or like systems

Country Status (1)

Country Link
GB (1) GB327768A (en)

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