GB867122A - Improvements in and relating to telephone impulse sender governor mechanisms - Google Patents

Improvements in and relating to telephone impulse sender governor mechanisms

Info

Publication number
GB867122A
GB867122A GB3857558A GB3857558A GB867122A GB 867122 A GB867122 A GB 867122A GB 3857558 A GB3857558 A GB 3857558A GB 3857558 A GB3857558 A GB 3857558A GB 867122 A GB867122 A GB 867122A
Authority
GB
United Kingdom
Prior art keywords
members
balls
dial
nov
friction plate
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
GB3857558A
Inventor
George Leslie Brown
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones 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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB3857558A priority Critical patent/GB867122A/en
Publication of GB867122A publication Critical patent/GB867122A/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
    • H04M1/315—Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Braking Arrangements (AREA)

Abstract

867,122. Centrifugal governors. ERICSSON TELEPHONES Ltd. Nov. 30, 1959 [Nov. 29, 1958], No. 38575/58. Class 57. [Also in Group XXXIV) A governor for an automatic telephone dial comprises balls 17 freely mounted in wedgesection cavities 16 formed by co-operating slots 4, 10 in cylindrical members 1, 7 resiliently urged together and braking means actuated by relative axial movement of the members due to outward movement of the balls under centrifugal force to control the return speed of the dial. Keyways 3, 9 in the members 1, 7 engage splines 13 on a shaft 12 having a flange 14 against which the member 7 abuts, the other member 1 being parallel to and a predetermined distance from a friction plate 19. The members are urged together by a compression spring (not shown) whose loading may be varied. The shaft 12 rotates with the dial during its return motion and the member 1 is urged axially by the centrifugal action of the balls 17 whereby its face 6 is pressed against the friction plate 19.
GB3857558A 1958-11-29 1958-11-29 Improvements in and relating to telephone impulse sender governor mechanisms Expired GB867122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3857558A GB867122A (en) 1958-11-29 1958-11-29 Improvements in and relating to telephone impulse sender governor mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3857558A GB867122A (en) 1958-11-29 1958-11-29 Improvements in and relating to telephone impulse sender governor mechanisms

Publications (1)

Publication Number Publication Date
GB867122A true GB867122A (en) 1961-05-03

Family

ID=10404366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3857558A Expired GB867122A (en) 1958-11-29 1958-11-29 Improvements in and relating to telephone impulse sender governor mechanisms

Country Status (1)

Country Link
GB (1) GB867122A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659057A (en) * 1969-02-14 1972-04-25 Werner Poppendieck Constant speed telephone dial return mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659057A (en) * 1969-02-14 1972-04-25 Werner Poppendieck Constant speed telephone dial return mechanism

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