US1865188A - Telephone system - Google Patents

Telephone system Download PDF

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Publication number
US1865188A
US1865188A US506025A US50602531A US1865188A US 1865188 A US1865188 A US 1865188A US 506025 A US506025 A US 506025A US 50602531 A US50602531 A US 50602531A US 1865188 A US1865188 A US 1865188A
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US
United States
Prior art keywords
switch
wipers
contact
wiper
setting
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 - Lifetime
Application number
US506025A
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English (en)
Inventor
Horn Ernst
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US1865188A publication Critical patent/US1865188A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a circuit arrangement in telephone systems with connecting devices, consisting of setting and conversational switches, in which the conversational switches re constructed with a plurality of wiper sets.
  • One object of the invention is to ettect the selection of the set of wipers to be used for setting up the connection in a simple and re liable manner. This is achieved by contact devices, which are influenced by the wipers of the setting switch to connect up one set of wipers of the conversational switch when the setting switch wipers are on certain of the bank contacts and the other set of wipers when the setting switch wipers are on certain other bank contacts.
  • Another object of the invention is to effect a guarding circuit as soon as a junction line is seized and to maintain the circuit for the duration of the connection. This guarding of a junction line, reached from the conversational switch, is achieved over the contact devices of the setting switch used for the control of the conversational switch.
  • a subscriber represented by T1
  • T1 can, over a preselector allocated to him, operate numerical impulse receivers namely IGVV, IIGVV, and LW for the purpose of setting up a connection with, for example, the subscriber T2.
  • the numerical impulse receivers with the exception of the numerical impulse receiver HGWV, are only shown schematically.
  • the numerical impulse receiver HGW consists of a conversational switch with two sets of wipers and a setting switch controlling its setting.
  • the conversational switch moves only in one direction (rotation) and in such a manner that the setting switch marks the line group in which the conversational switch hunts for a free line.
  • the connecting operation is as follows: When the subscriber T1 lifts his receiver, the preselector VW allocated to him, in known manner, is set by free hunting on to a succeeding numerical impulse receiver, by way of example, IGVV.
  • relay C At the seizure of this switch relay C is energized over: Earth, relay C, wiper of preselector VlV, resistance 721, battery, earth.
  • Relay A is energized over the subscribers line loop in the following circuit: Earth, battery, winding I of relay A, wiper of preselector VVV, (Head, subscriber T1, b-lead, wiper of preselector VVJ, winding II of relay A, earth.
  • relay A is intermittently deenergized by the breaking of this energizing circuit and causes thereby a setting of the numerical impulse receiver IGVV.
  • the setting procedures are of no interest in this case.
  • the numerical impulse receiver IGVV hunts for a free connecting line which might, by way of example, lead to the shown numerical impulse receiver IIGVV.
  • the following circuit is then completed: Earth, battery, winding 11 of relay C1, the winding I of relay V2, parallel therewith, rotary off-normal contact 'ew of the conversational switch, rotary off-normal contact 51126 of the setting switch, wiper 0 of the numerical impulse receiver IGVV, resistance W22, earth.
  • Relays C1 and V2 respond in this circuit whereby relay C1 connects itself with its winding 1 over contact 301 to the just described circuit.
  • the rotary magnet Dc of the setting switch is connected to the (Head of the junction line.
  • the wipers of the conversational switch are advanced by the rotary magnet D under control of inter rupter RU until the wiper (Z1 reaches the contact segment 3130 which is connected to contact 3 of the setting switch.
  • the following circuit is completedizl windings I and II of relay P, contact 2101, wiper (Z0 of the settings *itch, contact 3, contact segment 3130,,wiper cZlof the conversational switch, contact 25o2, resistance U2, battery, earth.
  • Relay P responds in this circuit and by the opening of contact 12 bringsthe rotary magnet D of the conversational switch to rest.
  • the ewitching over from the wiper set a1 and 61 to the wiper set a2 and b2 is effected by the rotary off-normal contacts 151116, 16206, 17we, and 18we, respectively.
  • These rotary ofi-normal contacts are mechanically operated by the switch shaft of the setting switch which is moved by the rotary magnet D0 in such a way, that, at each odd rotary step of the setting switch contacts 15we and 17106, respectively, are closed; and at each even rotary step contacts 1610c and 18106, respectively, are closed.
  • This is conveniently done for example, by means of a cam clel, having five notches corresponding to the five even steps 2, 4:,'6,-etc;, of the setting switch. This earth, v.
  • the numerical impulse receiver LlV can be set to the-required subscriber T2 after the setting of the numerical impulse receiver IIGTV.
  • the calling subscriber T1 is connected to the required subscriber when he replies.
  • the release, after the termination of the conversation, can be effected in any manner of no interest in this case.
  • a switch having a plurality of sets of wipers, a second switch individual to said first switch arranged to control the positioning of said first switch, and mechanical means in said second switch for selecting the set of wipers over which the connection is to be completed.
  • a switch having a plurality of sets of wipers, a second switch individual to said first switch having a shaft and'wiper, a cam on said shaft for connecting one or the other set of wipers in the first switch, and means controlled over the wiper of said second switch for controlling the positioning, of the connected set of wipers.
  • a switch having a plurality of sets of wipers, a second switch individual to said first switch arranged to control the positioning of said first switch,'mechanical meansin said second switch for selectingthe set of wipers over which the connection is to be completed, and means operative over the wiper of said second switch for guarding a connection completed over said first switch.
  • a switch having a plurality of sets of wipers, a second switch individual to said first switch arranged to control the positioning of said first switch, mechanicalmeans in said second switch for selecting the set of Wipers over which the connection is to be completed, and means operative over the wiper of said second switch for guarding a connection completed over said first switch irrespective of the set of Wipers used.
  • a switch having a plurality of sets of wipers, an auxiliary switch connected thereto, means for positioning said auxiliary switch, a test Wiper for each of said sets of wipers, means operative responsive to the positioning of said auxiliary switch for automatically steppng said first switch and for connecting one of said sets of wipers, and means controlled over one of said test wipers and the wipers of said auxiliary switch for stopping the stepping of said first switch.
  • a calling line a called line, a calling device, an auxiliary switch operative responsive to the operation of said calling device, a single motion connecting device for connecting call ing and called lines, said connecting device consisting of a certain number of series of contacts, and an equal number of sets of wipers, means for setting said wipers in accordance with the position of said auxiliary switch, and means controlled over one of said wipers and a wiper of said auxiliary switch for controlling the setting of said connecting device.
  • a calling line a called line, a calling device, an auxiliary switch operative responsive to the operation of said calling device, a single motion connecting device for connecting calling and called lines, said connecting device consisting of a certain number of series of contacts, and an equal number of sets of wipers, means for setting said wipers in accordance With the position of said auxiliary switch, and means for mechanically connecting a certain series of wipers in the connecting device according to the position of said auxiliary switch.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Relay Circuits (AREA)
US506025A 1930-02-24 1931-01-02 Telephone system Expired - Lifetime US1865188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1865188X 1930-02-24

Publications (1)

Publication Number Publication Date
US1865188A true US1865188A (en) 1932-06-28

Family

ID=7746647

Family Applications (1)

Application Number Title Priority Date Filing Date
US506025A Expired - Lifetime US1865188A (en) 1930-02-24 1931-01-02 Telephone system

Country Status (3)

Country Link
US (1) US1865188A (de)
AT (2) AT128731B (de)
CH (2) CH153637A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548673A (en) * 1945-05-04 1951-04-10 Siemens Brothers & Co Ltd Marker control apparatus for group selectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548673A (en) * 1945-05-04 1951-04-10 Siemens Brothers & Co Ltd Marker control apparatus for group selectors

Also Published As

Publication number Publication date
AT130120B (de) 1932-11-10
CH153049A (de) 1932-02-29
AT128731B (de) 1932-06-10
CH153637A (de) 1932-03-31

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