GB285279A - Improvements in or relating to telephone or like systems - Google Patents

Improvements in or relating to telephone or like systems

Info

Publication number
GB285279A
GB285279A GB11083/27A GB1108327A GB285279A GB 285279 A GB285279 A GB 285279A GB 11083/27 A GB11083/27 A GB 11083/27A GB 1108327 A GB1108327 A GB 1108327A GB 285279 A GB285279 A GB 285279A
Authority
GB
United Kingdom
Prior art keywords
bank
register
controller
wiper
counting
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
GB11083/27A
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
Priority to US1729856D priority Critical patent/US1729856A/en
Priority to GB11981/26A priority patent/GB275343A/en
Application filed by Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Priority to GB11083/27A priority patent/GB285279A/en
Publication of GB285279A publication Critical patent/GB285279A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

285,279. Automatic Telephone Manufacturing Co., Ltd., and Tench, F. Nov. 5, 1926. Drawings to Specification. Automatic exchange systems.-An impulse sender, e.g. in a register-controller, comprises a counting switch which stops in the position in which it terminates each digit, but takes an idle step just before starting the next one. The stopping potential can thus be connected to the appropriate points in the bank throughout the sending operation. The final digit is terminated by a different potential (e.g. battery instead of ground) which initiates the release of the register-controller. The switch has two counting wipers (the second becoming operative when the first leaves its bank) and a single homing wiper, and if the sender is released while the first wiper is on its bank, the second is not connected up. The system described is identical with that described in Specification 275,343.
GB11083/27A 1926-05-07 1926-11-05 Improvements in or relating to telephone or like systems Expired GB285279A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US1729856D US1729856A (en) 1926-05-07 tench
GB11981/26A GB275343A (en) 1926-05-07 1926-05-07 Improvements in or relating to telephone or like systems
GB11083/27A GB285279A (en) 1926-05-07 1926-11-05 Improvements in or relating to telephone or like systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB11981/26A GB275343A (en) 1926-05-07 1926-05-07 Improvements in or relating to telephone or like systems
GB11083/27A GB285279A (en) 1926-05-07 1926-11-05 Improvements in or relating to telephone or like systems

Publications (1)

Publication Number Publication Date
GB285279A true GB285279A (en) 1928-02-06

Family

ID=26248029

Family Applications (2)

Application Number Title Priority Date Filing Date
GB11981/26A Expired GB275343A (en) 1926-05-07 1926-05-07 Improvements in or relating to telephone or like systems
GB11083/27A Expired GB285279A (en) 1926-05-07 1926-11-05 Improvements in or relating to telephone or like systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB11981/26A Expired GB275343A (en) 1926-05-07 1926-05-07 Improvements in or relating to telephone or like systems

Country Status (2)

Country Link
US (1) US1729856A (en)
GB (2) GB275343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6751978B1 (en) * 2002-02-22 2004-06-22 Ranco Incorporated Transition fitting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656118A (en) * 1948-01-09 1951-08-15 Ericsson Telefon Ab L M Improvements in or relating to automatic telephone systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6751978B1 (en) * 2002-02-22 2004-06-22 Ranco Incorporated Transition fitting

Also Published As

Publication number Publication date
US1729856A (en) 1929-10-01
GB275343A (en) 1927-08-08

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