GB927410A - Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit - Google Patents

Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit

Info

Publication number
GB927410A
GB927410A GB261961A GB261961A GB927410A GB 927410 A GB927410 A GB 927410A GB 261961 A GB261961 A GB 261961A GB 261961 A GB261961 A GB 261961A GB 927410 A GB927410 A GB 927410A
Authority
GB
United Kingdom
Prior art keywords
control circuit
circuit
relay
capacitor
common apparatus
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
GB261961A
Inventor
Douglas Percy Long
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB261961A priority Critical patent/GB927410A/en
Publication of GB927410A publication Critical patent/GB927410A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/523—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with call distribution or queueing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

927,410. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 27, 1961 [Jan. 23, 1961], No. 2619/61. Class 40 (4). In an arrangement for testing the availability of a common apparatus, each equipment of a plurality associated with the apparatus is provided with a capacitor which (when the equipment requires the use of the apparatus) is periodically charged and then discharged through a circuit comprising a test relay shunted by similar test relays in each of the other equipments, the arrangement being that if the common apparatus is busy the greater part of each discharge is through the shunt circuit, whereas when it becomes free the discharge is then substantially through the associated relay so that the latter is operated and hence seizes the common apparatus. The invention is applied to the case where a plurality of registers require access to a control circuit common to a number of selectors. When a register (Fig. 1a) requires the use of the control circuit (Fig. 2), a contact ax therein operates to complete a self-interrupting circuit for the slow-operate slow-release relay AG and capacitor AC2 is thus periodically connected to a test relay AT, which is thereby operated and locks to negative battery in the control circuit if the latter is idle. However, if another register is already connected up, i.e. test relay BT is up, capacitor AC2 discharges through the low resistance holding winding II of BT and AT remains down until the control circuit is free. If contact z is open then none of the registers can gain access to the control circuit.
GB261961A 1961-01-23 1961-01-23 Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit Expired GB927410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB261961A GB927410A (en) 1961-01-23 1961-01-23 Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB261961A GB927410A (en) 1961-01-23 1961-01-23 Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit

Publications (1)

Publication Number Publication Date
GB927410A true GB927410A (en) 1963-05-29

Family

ID=9742753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB261961A Expired GB927410A (en) 1961-01-23 1961-01-23 Improvements relating to arrangements for controlling the access of a plurality of equipments to a common apparatus or circuit

Country Status (1)

Country Link
GB (1) GB927410A (en)

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