GB568476A - Improvements in or relating to the control of selectors such as used in automatic telephony - Google Patents

Improvements in or relating to the control of selectors such as used in automatic telephony

Info

Publication number
GB568476A
GB568476A GB17423/43A GB1742343A GB568476A GB 568476 A GB568476 A GB 568476A GB 17423/43 A GB17423/43 A GB 17423/43A GB 1742343 A GB1742343 A GB 1742343A GB 568476 A GB568476 A GB 568476A
Authority
GB
United Kingdom
Prior art keywords
selector
tube
vtr
relay
chr
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
GB17423/43A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB568476A publication Critical patent/GB568476A/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
    • 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
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Keying Circuit Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Selective Calling Equipment (AREA)
GB17423/43A 1941-07-11 1943-10-22 Improvements in or relating to the control of selectors such as used in automatic telephony Expired GB568476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL102086A NL56430C (nl) 1941-07-11 1941-07-11 Seinstelsel in het bijzonder telefoonstelsel met ontladingsbuizen voor de instelling der de verbinding opbouwende kiezers

Publications (1)

Publication Number Publication Date
GB568476A true GB568476A (en) 1945-04-06

Family

ID=93260124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17423/43A Expired GB568476A (en) 1941-07-11 1943-10-22 Improvements in or relating to the control of selectors such as used in automatic telephony

Country Status (6)

Country Link
US (1) US2447495A (enrdf_load_stackoverflow)
CH (1) CH256354A (enrdf_load_stackoverflow)
DK (1) DK64407C (enrdf_load_stackoverflow)
FR (1) FR883978A (enrdf_load_stackoverflow)
GB (1) GB568476A (enrdf_load_stackoverflow)
NL (2) NL56430C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666809A (en) * 1947-10-27 1954-01-19 Flowers Thomas Harold Electrical switching system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB926753A (en) * 1959-04-10 1963-05-22 Ass Elect Ind Improvements relating to register-translator apparatus
NL56430C (nl) * 1941-07-11 1944-06-15 Bell Telepohone Mfg Co Sa Seinstelsel in het bijzonder telefoonstelsel met ontladingsbuizen voor de instelling der de verbinding opbouwende kiezers
US2553553A (en) * 1942-09-07 1951-05-22 Int Standard Electric Corp Selector switching system
NL154404B (nl) * 1949-06-24 Gen Foods Corp Werkwijze voor het bereiden van met aceetaldehyde gearomatiseerde saccharose.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285815A (en) * 1940-10-17 1942-06-09 Bell Telephone Labor Inc Signaling system
NL56430C (nl) * 1941-07-11 1944-06-15 Bell Telepohone Mfg Co Sa Seinstelsel in het bijzonder telefoonstelsel met ontladingsbuizen voor de instelling der de verbinding opbouwende kiezers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666809A (en) * 1947-10-27 1954-01-19 Flowers Thomas Harold Electrical switching system

Also Published As

Publication number Publication date
FR883978A (fr) 1943-07-28
NL60199C (nl) 1947-11-15
NL56430C (nl) 1944-06-15
DK64407C (da) 1946-04-15
CH256354A (de) 1948-08-15
NL111581A (enrdf_load_stackoverflow) 1947-06-16
US2447495A (en) 1948-08-24

Similar Documents

Publication Publication Date Title
USRE22794E (en) G deakin
US2719966A (en) Electronic annunciator
US2049376A (en) Electrical amplifying circuit
US2354682A (en) Electric selection controlling circuit
GB542252A (en) Improvements in two-way transmission systems
GB568476A (en) Improvements in or relating to the control of selectors such as used in automatic telephony
US2326313A (en) Alarm circuit
US2277228A (en) Telephone system
GB650890A (en) Improvements in or relating to electric discharge tubes
GB549440A (en) Selecting systems particularly for automatic telephones
US2475050A (en) Constant current circuit
GB549324A (en) Improved means for testing and selecting electrical circuits, particularly in automatic telephone systems
US2609454A (en) Selecting and lockout circuit
US2403988A (en) Peak voltage indicator and regulator
US2696529A (en) Voice-operated switching system
US2264311A (en) Transmission system
US1503709A (en) Vacuum-tube circuits
US2593350A (en) Control circuit
US2423115A (en) Electrical signaling system
US2020488A (en) Telephone system
US2104142A (en) Gas-filled tube circuits
US2206682A (en) Transmitter
GB699941A (en) Improvements in or relating to apparatus for supplying ringing current in automatic telephone-exchange and like systems
US2474234A (en) Electrical signal transmission system
US2564125A (en) Selecting system