GB325577A - Improvements in circuit arrangements for alternating current relays with vibratory contacts - Google Patents

Improvements in circuit arrangements for alternating current relays with vibratory contacts

Info

Publication number
GB325577A
GB325577A GB3435528A GB3435528A GB325577A GB 325577 A GB325577 A GB 325577A GB 3435528 A GB3435528 A GB 3435528A GB 3435528 A GB3435528 A GB 3435528A GB 325577 A GB325577 A GB 325577A
Authority
GB
United Kingdom
Prior art keywords
contacts
relay
alternating current
series
circuit arrangements
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
GB3435528A
Other languages
English (en)
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
Priority to BE364131D priority Critical patent/BE364131A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3435528A priority patent/GB325577A/en
Publication of GB325577A publication Critical patent/GB325577A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
GB3435528A 1928-11-22 1928-11-22 Improvements in circuit arrangements for alternating current relays with vibratory contacts Expired GB325577A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE364131D BE364131A (enrdf_load_stackoverflow) 1928-11-22
GB3435528A GB325577A (en) 1928-11-22 1928-11-22 Improvements in circuit arrangements for alternating current relays with vibratory contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3435528A GB325577A (en) 1928-11-22 1928-11-22 Improvements in circuit arrangements for alternating current relays with vibratory contacts

Publications (1)

Publication Number Publication Date
GB325577A true GB325577A (en) 1930-02-24

Family

ID=10364607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3435528A Expired GB325577A (en) 1928-11-22 1928-11-22 Improvements in circuit arrangements for alternating current relays with vibratory contacts

Country Status (2)

Country Link
BE (1) BE364131A (enrdf_load_stackoverflow)
GB (1) GB325577A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE364131A (enrdf_load_stackoverflow)

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