GB591532A - Improvements in or relating to selector switches such as are used in automatic telephone systems - Google Patents

Improvements in or relating to selector switches such as are used in automatic telephone systems

Info

Publication number
GB591532A
GB591532A GB13685/46A GB1368546A GB591532A GB 591532 A GB591532 A GB 591532A GB 13685/46 A GB13685/46 A GB 13685/46A GB 1368546 A GB1368546 A GB 1368546A GB 591532 A GB591532 A GB 591532A
Authority
GB
United Kingdom
Prior art keywords
relating
telephone systems
selector switches
automatic telephone
inoperative
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
GB13685/46A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB591532A publication Critical patent/GB591532A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00Details of electrically-operated selector switches
    • H01H63/02Contacts; Wipers; Connections thereto
    • H01H63/04Contact-making or contact-breaking wipers; Position indicators therefor

Landscapes

  • Telephone Set Structure (AREA)

Abstract

591,532. Automatic exchange selectors. STANDARD TELEPHONES & CABLES, Ltd. May 11, 1945, No. 13685/46. Convention date, July 29, 1944. Divided out of 591,523. [Class 40 (iv)] In a switch of the type described in Specification 591, 523, the two portions of an inoperative wiper are separated by insulating member 21 which are mounted on pivot pins 22 and 24, and are brought into engagement with inwardly bent portions of the springs 5 (Fig. 2) when a shift bar 25 engages stops 34 at the end of the travel of the carriage in each direction, so that the wipers become operative for traverse in one direction and inoperative for the other. Specification 563,501 also is referred to.
GB13685/46A 1944-07-29 1945-05-11 Improvements in or relating to selector switches such as are used in automatic telephone systems Expired GB591532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591532XA 1944-07-29 1944-07-29

Publications (1)

Publication Number Publication Date
GB591532A true GB591532A (en) 1947-08-20

Family

ID=22021177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13685/46A Expired GB591532A (en) 1944-07-29 1945-05-11 Improvements in or relating to selector switches such as are used in automatic telephone systems

Country Status (1)

Country Link
GB (1) GB591532A (en)

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