GB923219A - A switching arrangement for electrical circuits - Google Patents

A switching arrangement for electrical circuits

Info

Publication number
GB923219A
GB923219A GB2442160A GB2442160A GB923219A GB 923219 A GB923219 A GB 923219A GB 2442160 A GB2442160 A GB 2442160A GB 2442160 A GB2442160 A GB 2442160A GB 923219 A GB923219 A GB 923219A
Authority
GB
United Kingdom
Prior art keywords
key
bars
switching arrangement
contacts
operates
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
GB2442160A
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.)
Gylling and Co AB
Original Assignee
Gylling and Co AB
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 Gylling and Co AB filed Critical Gylling and Co AB
Publication of GB923219A publication Critical patent/GB923219A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/76—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein some or all of the operating members actuate different combinations of the contact sets, e.g. ten operating members actuating different combinations of four contact sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

923,219. Keyboard switches. GYLLING & CO. A. B. July 13, 1960 [Aug. 21, 1959], No. 24421/60. Class 38 (5). In a key-operated switching arrangement for a telephone set, the keys 1-5 are mounted above U-shaped bars 13, 15 hinged at 17, 18. By suitably slotting either the bars or the co-operating key surfaces a different combination of bars is depressed according to which key is depressed. thus actuating a corresponding combination of switch contact blades 19, 20. In the embodiment described the key 5, like key 1, operates only bar 13 and contacts 20, but in addition depresses a hinged plate 30 to operate part of the switch 19. Key 4 similarly depresses the plate 30 and in addition, each key operates its own contacts 6.
GB2442160A 1959-08-21 1960-07-13 A switching arrangement for electrical circuits Expired GB923219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE776859 1959-08-21

Publications (1)

Publication Number Publication Date
GB923219A true GB923219A (en) 1963-04-10

Family

ID=20272251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2442160A Expired GB923219A (en) 1959-08-21 1960-07-13 A switching arrangement for electrical circuits

Country Status (1)

Country Link
GB (1) GB923219A (en)

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