GB385056A - Improvements relating to automatic telephone systems - Google Patents

Improvements relating to automatic telephone systems

Info

Publication number
GB385056A
GB385056A GB29117/31A GB2911731A GB385056A GB 385056 A GB385056 A GB 385056A GB 29117/31 A GB29117/31 A GB 29117/31A GB 2911731 A GB2911731 A GB 2911731A GB 385056 A GB385056 A GB 385056A
Authority
GB
United Kingdom
Prior art keywords
wipers
sub
improvements relating
telephone systems
group
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
GB29117/31A
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and 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 Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Priority to GB29117/31A priority Critical patent/GB385056A/en
Priority to US637888A priority patent/US2013169A/en
Publication of GB385056A publication Critical patent/GB385056A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Manufacture Of Switches (AREA)

Abstract

385,056. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and PATTERSON, W. G., 68, Eltham Road, Lee, both in London. Oct. 20, 1931, No. 29117. Drawings to Specification. [Class 40 (iv).] A single-motion selector having two sets of wipers is provided with arrangements whereby a group of outlets may be divided into two sub-groups connected to the earlier part of the terminal row of one set of wipers and the later part of that of the second set of wipers, a wiper-switching operation taking place after an unsuccessful search in the first sub-group. The selector described is identical with the pre-final selector described in Specifications 378,585 (Figs. 9 and 10) and 378,586.
GB29117/31A 1931-10-20 1931-10-20 Improvements relating to automatic telephone systems Expired GB385056A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB29117/31A GB385056A (en) 1931-10-20 1931-10-20 Improvements relating to automatic telephone systems
US637888A US2013169A (en) 1931-10-20 1932-10-15 Selecting switch for use in telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29117/31A GB385056A (en) 1931-10-20 1931-10-20 Improvements relating to automatic telephone systems

Publications (1)

Publication Number Publication Date
GB385056A true GB385056A (en) 1932-12-22

Family

ID=10286424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29117/31A Expired GB385056A (en) 1931-10-20 1931-10-20 Improvements relating to automatic telephone systems

Country Status (2)

Country Link
US (1) US2013169A (en)
GB (1) GB385056A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB592989A (en) * 1945-05-04 1947-10-06 Siemens Brothers & Co Ltd Improvements relating to automatic telephone systems

Also Published As

Publication number Publication date
US2013169A (en) 1935-09-03

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