GB356272A - Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems - Google Patents

Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems

Info

Publication number
GB356272A
GB356272A GB1757130A GB1757130A GB356272A GB 356272 A GB356272 A GB 356272A GB 1757130 A GB1757130 A GB 1757130A GB 1757130 A GB1757130 A GB 1757130A GB 356272 A GB356272 A GB 356272A
Authority
GB
United Kingdom
Prior art keywords
group
once
hunting
switch
automatic
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
GB1757130A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1757130A priority Critical patent/GB356272A/en
Publication of GB356272A publication Critical patent/GB356272A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks

Abstract

356,272. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.- (Hatton, W. ; 46, Avenue de Breteuil, Paris.) June 6, 1930, No. 17571. Drawing to Specification. [Class 40 (iv).] In a switch which may hunt more than once over the same group of trunks until an idle one is found, a traffic meter connected to the last test terminal in the group is operated only once for each busy condition although the terminal to which it is connected may be engaged more than once. The invention is described with reference to a rotary power-driven group selector of the trip-spindle type having one level for each group, and hunting is arranged to take place in two positions of the controlling sequence-switch. In the first position, the group is searched once and when the last set of terminals is reached a special contact closed only in this position of the wipers connects up battery to operate the meter and to advance the sequence-switch to the second hunting position in which the battery connection is opened so that hunting continues as long as necessary, but the meter is not again operated.
GB1757130A 1930-06-06 1930-06-06 Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems Expired GB356272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1757130A GB356272A (en) 1930-06-06 1930-06-06 Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1757130A GB356272A (en) 1930-06-06 1930-06-06 Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems

Publications (1)

Publication Number Publication Date
GB356272A true GB356272A (en) 1931-09-07

Family

ID=10097508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1757130A Expired GB356272A (en) 1930-06-06 1930-06-06 Improvements in or relating to hunting switches particularly for use in automatic orsemi-automatic telephone systems

Country Status (1)

Country Link
GB (1) GB356272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928960C (en) * 1951-08-22 1955-06-16 Siemens Ag Circuit arrangement for counting the spinning of dialers in telecommunication systems, in particular telephone systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928960C (en) * 1951-08-22 1955-06-16 Siemens Ag Circuit arrangement for counting the spinning of dialers in telecommunication systems, in particular telephone systems

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