GB285618A - Selectors for automatic and semi-automatic telephone systems - Google Patents

Selectors for automatic and semi-automatic telephone systems

Info

Publication number
GB285618A
GB285618A GB3303626A GB3303626A GB285618A GB 285618 A GB285618 A GB 285618A GB 3303626 A GB3303626 A GB 3303626A GB 3303626 A GB3303626 A GB 3303626A GB 285618 A GB285618 A GB 285618A
Authority
GB
United Kingdom
Prior art keywords
relay
connector
circuit
pii
magnet
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
GB3303626A
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.)
RICHARD SIENANG
TELEFON und TELEGRAPHENBAU GES
Original Assignee
RICHARD SIENANG
TELEFON und TELEGRAPHENBAU GES
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 RICHARD SIENANG, TELEFON und TELEGRAPHENBAU GES filed Critical RICHARD SIENANG
Priority to GB3303626A priority Critical patent/GB285618A/en
Publication of GB285618A publication Critical patent/GB285618A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

285,618. Telefon-und Telegraphenbau-Ges., and Sienang, R. Dec. 31, 1926. Automatic exchange systems.-Single motion connectors with only one controlling magnet are set to a group under control of a marking switch and to a line directly by incoming impulses. As shown, the connector has two sets of doubleended wipers insulated from each other. The tens digit is repeated by line relay J over a front contact of release relay I to the magnet DBW of the marking switch BW. Series relay II on pulling up completes an interrupter circuit for magnet DEW of the connector, which advances until one of the wipers d reaches the marked terminal (off normal springs 75w maintaining the circuit after the relapse of series relay II), whereupon relay AI or AII operates its light armature 56a/l1 or 57a/l2 to stop the connector and an instant later its other armatures to switch over the impulse, circuit to the magnet DEW and connect up the test relay PI or PII. If the line is idle relay PI or PII, which pulls up on the relapse of the series relay, marks it busy, opens the impulsing circuit, and extends the talking circuit. Relay y pulls up when the called party answers. When both parties hang up, relays AI, PI or AII, PII fall back the marking switch is restored by means not shown, and the connector is stepped on until the springs 75w change over. In a modification in which the connector has a single set of wipers, the relays AII, PII are omitted.
GB3303626A 1926-12-31 1926-12-31 Selectors for automatic and semi-automatic telephone systems Expired GB285618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3303626A GB285618A (en) 1926-12-31 1926-12-31 Selectors for automatic and semi-automatic telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3303626A GB285618A (en) 1926-12-31 1926-12-31 Selectors for automatic and semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
GB285618A true GB285618A (en) 1928-02-23

Family

ID=10347648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3303626A Expired GB285618A (en) 1926-12-31 1926-12-31 Selectors for automatic and semi-automatic telephone systems

Country Status (1)

Country Link
GB (1) GB285618A (en)

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