GB136436A - Improvements in or relating to Electric Selective Switching Apparatus. - Google Patents

Improvements in or relating to Electric Selective Switching Apparatus.

Info

Publication number
GB136436A
GB136436A GB891419A GB891419A GB136436A GB 136436 A GB136436 A GB 136436A GB 891419 A GB891419 A GB 891419A GB 891419 A GB891419 A GB 891419A GB 136436 A GB136436 A GB 136436A
Authority
GB
United Kingdom
Prior art keywords
groups
switch
contacts
relating
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
GB891419A
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.)
INTERNAT ELECTRIC Co Ltd
Original Assignee
INTERNAT ELECTRIC 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 INTERNAT ELECTRIC Co Ltd filed Critical INTERNAT ELECTRIC Co Ltd
Priority to GB891419A priority Critical patent/GB136436A/en
Publication of GB136436A publication Critical patent/GB136436A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/02—Contacts; Wipers; Connections thereto
    • H01H63/06—Contact banks

Landscapes

  • Telephone Set Structure (AREA)

Abstract

136,436. International Electric Co., and Baldock, F. R. Aug. 14, 1918. Automatic exchange systems.-An automatic switch of the single co-ordinate type has its bank contacts 3 divided into groups, each of which is formed as a separate unitary structure 2 which can be readily placed in position in the switch. The parts 2 may be secured to a base 1 and a supporting-ring 4. A telephone installation may be extended by adding further blocks of contacts; or faulty groups of contacts may be replaced without disturbing other groups. The switch is particularly applicable to automatic telephone systems of the kind described in Specification 136,755.
GB891419A 1918-08-14 1918-08-14 Improvements in or relating to Electric Selective Switching Apparatus. Expired GB136436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB891419A GB136436A (en) 1918-08-14 1918-08-14 Improvements in or relating to Electric Selective Switching Apparatus.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB891419A GB136436A (en) 1918-08-14 1918-08-14 Improvements in or relating to Electric Selective Switching Apparatus.

Publications (1)

Publication Number Publication Date
GB136436A true GB136436A (en) 1919-12-15

Family

ID=32482354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB891419A Expired GB136436A (en) 1918-08-14 1918-08-14 Improvements in or relating to Electric Selective Switching Apparatus.

Country Status (1)

Country Link
GB (1) GB136436A (en)

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