[go: up one dir, main page]

GB392588A - Improvements in or relating to impulse senders of the dial type - Google Patents

Improvements in or relating to impulse senders of the dial type

Info

Publication number
GB392588A
GB392588A GB2032132A GB2032132A GB392588A GB 392588 A GB392588 A GB 392588A GB 2032132 A GB2032132 A GB 2032132A GB 2032132 A GB2032132 A GB 2032132A GB 392588 A GB392588 A GB 392588A
Authority
GB
United Kingdom
Prior art keywords
impulse
springs
operated
plate
relating
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
GB2032132A
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.)
JOHN HOPE BELL
Original Assignee
JOHN HOPE BELL
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 JOHN HOPE BELL filed Critical JOHN HOPE BELL
Priority to GB2032132A priority Critical patent/GB392588A/en
Publication of GB392588A publication Critical patent/GB392588A/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
    • H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

392,588. Impulse transmitters. BELL, J. H., Wynyard, Hayes Hill Road, Hayes, Kent. Nov. 13, 1931, No. 20321/32. Divided application. [Class 40 (iv).] The impulse springs 11 are operated during both movements of the finger-hold plate 1 but are short-circuited during the forward movement by springs 10 which are operated by an axial movement of the shaft 9 of the plate. Off-normal springs are operated by an arm 5 secured to the hollow shaft 3 of the impulse disc 4 which is coupled to the plate 1 by the pin 8. The pause between digits is provided by the enlarged tooth 12 which keeps the impulse springs closed after each digit for an appropriate period. Specification 178,936, [Class 40 (iv), Telephones &c.], is referred to.
GB2032132A 1931-11-13 1931-11-13 Improvements in or relating to impulse senders of the dial type Expired GB392588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2032132A GB392588A (en) 1931-11-13 1931-11-13 Improvements in or relating to impulse senders of the dial type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2032132A GB392588A (en) 1931-11-13 1931-11-13 Improvements in or relating to impulse senders of the dial type

Publications (1)

Publication Number Publication Date
GB392588A true GB392588A (en) 1933-05-15

Family

ID=10144034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2032132A Expired GB392588A (en) 1931-11-13 1931-11-13 Improvements in or relating to impulse senders of the dial type

Country Status (1)

Country Link
GB (1) GB392588A (en)

Similar Documents

Publication Publication Date Title
GB392588A (en) Improvements in or relating to impulse senders of the dial type
GB528523A (en) Improvements in or relating to telephone transmitters
GB191408696A (en) Improvements in or relating to Speed Indicating and Recording Apparatus of the Periodic-counter Type.
GB389661A (en) Improvements in and relating to dial switches
GB396819A (en) Improvements in impulse senders for use in telephone or like systems
GB274809A (en) Improvements in or relating to dial switches for telephones
GB347847A (en) An improved device for operating the dial of an automatic telephone
GB350954A (en) Improvements in electro-mechanical sound recording devices more especially of the moving coil type
AU160621B2 (en) Improvements relating to gramophone, driving, mechanism
GB429537A (en) Mechanical toy
CA311753A (en) Impulse transmitter
CA308555A (en) Telephone transmitter
CA224503A (en) Telephone transmitter
GB304352A (en) Improvements in or relating to automatic dial switches
GB264694A (en) Improvements in or relating to correcting devices for use in synchronous telegraphy
CA312223A (en) Moulded telephone hand-set, etc.
CA216504A (en) Wireless telegraph transmitter
CA223698A (en) Repeating attachment for phonographs
CA222684A (en) Blast whirler
CA220582A (en) Submarine wireless telegraph
AU441021A (en) Improvements in or relating to impulse transmitters ofthe dial type
CA224684A (en) Draft yoke
CA296458A (en) Telephone transmitter
CA343996A (en) Impulse transmitter
CA222447A (en) Mechanical movement