US3271523A - Coupling fields with single conductor through-switching of extensions over electromagnetically actuated contacts - Google Patents

Coupling fields with single conductor through-switching of extensions over electromagnetically actuated contacts Download PDF

Info

Publication number
US3271523A
US3271523A US59029A US5902960A US3271523A US 3271523 A US3271523 A US 3271523A US 59029 A US59029 A US 59029A US 5902960 A US5902960 A US 5902960A US 3271523 A US3271523 A US 3271523A
Authority
US
United States
Prior art keywords
coupling
contacts
coils
holding
single conductor
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
US59029A
Other languages
English (en)
Inventor
Karrer Korbinian
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
Original Assignee
Siemens and Halske AG
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 and Halske AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of US3271523A publication Critical patent/US3271523A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Definitions

  • This invention is concerned with coupling fields for communication systems and especially telephone systems utilizing single conductor through-switching of the speech current path extending over electromagnetically actuated sealed-in contacts. Coupling fields are sometimes also referred to a cross-wire circuits.
  • FIG. 1 shows in schematic manner a known coupling field to aid in understanding the principles involved in the construction thereof
  • FIG. 2 illustrates a circuit constructed according to the invention
  • FIG. 3 represents a portion of a layer of a coupling multiple.
  • Coupling fields often include a plurality of coupling stages, each built up of socalled coupling multiples, wherein the individual coupling points, to which are connected the coupling contacts, are respectively row-wise and column-wise connected in multiples.
  • FIG. 1 A known coupling field of this kind is shown in principle representation in FIG. 1. It contains three coupling stages A, B and C, each stage having a plurality of coupling multiples as indicated respectively at Kai-KaS, Kb1-Kb3 and Kcl-Kc3.
  • the coupling multiples are in known manner interconnected over trunk lines Z.
  • a connection path is indicated as extending over closed coupling contacts ka, kb and kc. All other coupling contacts have been omitted to keep the drawing simple.
  • Coupling fields of this kind are customarily provided with three-conductor or four-conductor connections, two conductors serving for the talking path and the remaining conductor or conductors as private or control conductors for the building up of connections.
  • This also includes the requirement according to which closed coupling contacts must be maintainedin closed condition for the duration of a connection.
  • special holding coils have been provided, until now, such holding coils being connected to one of the private or control conductors and holding the respectively involved coupling contacts in actuated condition so long as current flows over the corresponding private or control conductor.
  • the principal object of the invention is to provide coupling field systems with single conductor throughswitching over electromagnetically actuated coupling contacts.
  • This object is according to the invention realized by connecting in series with each coupling contact of the one conductor a holding coil which holds the corresponding coupling contact in closed condition depending upon current flowing over such conductor.
  • FIG. 2 shows a circuit constructed according to the principle of the present invention, such circuit representing a connection between two subscriber stations T1 and T2 which are respectively connected to the network over transformers U1 and U2.
  • the net work which is indicated fractionally, may be in the form of a coupling field 3,271,523 Patented Sept. 6, 1966 such as is indicated in FIG. 1.
  • the network includes the three coupling stages A, B, C, FIG. 2 showing however only the coupling contacts ka, kb, kc of these stages over which a connection may be extended.
  • Each of these coupling contacts ka, kb, kc has a holding coil respectively indicated at Ha, Hb, Hc, serially related thereto.
  • a closed circuit including a current source S.
  • the current supplied by this source energizes the holding coils Ha, Hb, Hc, such holding coils being effective to maintain their respectively associated contacts ka, kb, kc in closed condition and thereby maintaining the corresponding connection.
  • the release operation which takes place in known manner upon termination of the call causes opening of the circuit extending over the single conductor connection, thereby effecting release of the holding coils and consequently restoration of the coupling contacts into normal position.
  • the holding coils which are according to the invention inserted in the one conductor can also be used as energizing coils.
  • Marker lines are for this purpose extended to the holding coils, as shown in FIG. 2, and such marker lines are placed on current so as to cause energization of the respective holding coils and therewith operative actuation of the coupling contacts associated therewith.
  • marker lines M1 extend from the respective holding coils Ha, Hb, Hc over switch-in contacts x to a marker M.
  • the contacts at serve for connecting the marker always to the coordinate switch at which a switching-through operation is to be effected.
  • Contacts of this kind are customary in communication systems employing coordinate switches; they have no particular bearing on the invention.
  • the marker controls in known manner the building up of connections by placing current on the respective marker lines M1, thereby effecting the closure of the various coupling contacts. Upon completing the building up of a connection, there will be present a holding circuit which is supplied from the battery S to maintain the connection.
  • the arrangement according to the invention can also be utilized in connection with socalled relay coupling fields having for each coupling point an energizing coil for the actuation of the corresponding contact and a holding coil for maintaining the contact actuated. It is however also possible to use the invention in connection with a coupling field having for each contact a holding coil and two energizing coils which are respectively associated with the respective coordinate directions, the energization of these two energizing coils causing operative actuation of the corresponding contact.
  • a coupling field having for each contact a holding coil and two energizing coils which are respectively associated with the respective coordinate directions, the energization of these two energizing coils causing operative actuation of the corresponding contact.
  • cross coil switches an example of which is described in the copending application Serial No. 573,039 filed March 21, 1956.
  • sealed-in contacts to operate as coupling contacts.
  • These sealed-in contacts are distinguished by hermetically enclosed contact points, permitting moreover combining of the energizing coils of at least one coordinate direction in one elongated coil which embraces the entire coordinate, as is also the case in the socalled cross-coil switches.
  • the holding coils employed in such structures also have relatively short average turns and therewith a relatively low ohmic resistance.
  • FIG. 3 represents a portion of a layer of a coupling field.
  • a complete coupling field is obtained by placing such layer one above the other.
  • contacts of the dry-reed type as coupling contacts, only the contact springs F of such contacts being shown to keep the drawing simple.
  • a holding coil H At the working air gap L of the respective contact springs F is disposed a holding coil H, the energization of which suffices to maintain a closed contact in closed position.
  • Energizing coils are arranged at the ends of the respec tive holding coils H, such energizing coils being desig nated by X and Y according to the respective coordinate directions.
  • an X coil for each contact while a Y coil extends in the Y direction over the entire layer.
  • the X coils are in the respective columns electrically serially related as indicated by dot-dash lines.
  • the energization of a Y coil and an X coil which is in the illustrated case effected column-Wise and row-wise, causes operative actuation of the respective contacts.
  • the energization of the Y-coil and of the X-coil can be effected in known manner by a marker, for example, in a manner similar to the actuation of a rod and a bridge of a crossbar switch under control of a marker.
  • FIG. 2 also shows two marker lines M1 per coupling point, which can be utilized for the energization of the X and Y coils, respectively.
  • the corresponding actuated contact establishes a current path extending over the respective holding coil H as such holding coil is serially connected with the respectively associated contact spring P, such connection being indicated by the dot-dash line V.
  • the speech current path then extends over the involved holding coil H and the dot-dash line V to the end of the respective contact spring F, from there over the closed working air gap L to the other contact spring, and from the latter to the next stage.
  • the fixedly disposed ends of the contact springs F are magnetically interconnected over return path members R, such return path being of course electrically insulated from the contact springs.
  • return path members R extend respectively each over a layer of the coupling field.
  • the direction of the layers coincides with the direction of the common energizing coils, in the illustrated example, the Y coils.
  • the holding coils are disposed in the speech current path, as shown in FIG. 2, they produce due to inductivity thereof, a certain damping. This may be remedied by connecting capacitors in parallel to the holding coils.
  • Another possibility of reducing the clamping resides in providing the holding coils with short-circuit windings, thereby eliminating the necessity for an auxiliary structural element such as a capacitor.
  • the shortcircuit winding may be provided in the form of an electrically conductive sleeve upon the respective holding coils, such sleeve being indicated in FIG. 3 at D.
  • Another possibility of producing the short-circuit winding resides in providing it in the form of a ring adjacent the holding coil or at its two ends, respectively.
  • FIG. 2 The principle of using the holding coils as energizing coils, as illustrated in FIG. 2, can be readily applied in FIG. 3, and the structure will then be provided only with holding coils acting also as energizing coils, thus eliminating separate energizing coils.
  • an arrangement for switching through connections over a single conductor of the speech current path extending over electromagnetically controlled coupling contacts comprising a holding coil disposed in serial relationship with respect to each coupling contact, and circuit means opera-tively directing current flowing over said single conductor to the respective holding coils to energize the same and thereby maintain the coupling contacts respectively associate-d therewith in actuated condition.
  • An arrangement according to claim 1, comprising two energizing coils for each coupling contact, said energizing coils belonging respectively to the two coordinate directions of the arrangement.
  • An arrangement according to claim 5, comprising magnetic return path means extending respectively over layers of the coupling field for magnetically interconnecting the fixedly disposed ends of the coupling contactsprings, said return path means extending over layers defined respectively by said elongated energizing coils.
  • An arrangement according to claim 1, comprising means for each holding coil constituting a short-circuit winding therefor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)
US59029A 1959-10-14 1960-09-28 Coupling fields with single conductor through-switching of extensions over electromagnetically actuated contacts Expired - Lifetime US3271523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES65425A DE1103396B (de) 1959-10-14 1959-10-14 Anordnung fuer Koppelfelder mit einadriger Durchschaltung des ueber elektromagnetisch betaetigte Koppelkontakte fuehrenden Sprechweges in Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
US3271523A true US3271523A (en) 1966-09-06

Family

ID=7498031

Family Applications (1)

Application Number Title Priority Date Filing Date
US59029A Expired - Lifetime US3271523A (en) 1959-10-14 1960-09-28 Coupling fields with single conductor through-switching of extensions over electromagnetically actuated contacts

Country Status (5)

Country Link
US (1) US3271523A (es)
BE (1) BE595838A (es)
DE (1) DE1103396B (es)
GB (1) GB905452A (es)
NL (2) NL256783A (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347995A (en) * 1963-08-03 1967-10-17 Int Standard Electric Corp Make before break ball type armature reed relay switching network
US3593295A (en) * 1968-05-10 1971-07-13 Bell Telephone Labor Inc Rearrangeable switching network
US4611204A (en) * 1984-11-05 1986-09-09 Gte Communication Systems Corporation Arrangement for an electromechanical space switching network

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH396998A (de) * 1961-04-04 1965-08-15 Siemens Ag Schaltungsanordnung für Fernmelde-, insbesondere Fernsprechanlagen, in denen Leitungen über Koppelvielfache zusammenschaltbar sind
FR81607E (es) * 1961-04-25 1964-01-17
DE1215775B (de) * 1963-12-17 1966-05-05 Telefunken Patent Schaltungsanordnung fuer eine selbsttaetige Fernsprechvermittlungsanlage
DE1244871B (de) * 1965-09-08 1967-07-20 Standard Elek K Lorenz Ag Koppelfeldmatrix mit Speicherschaltern in den Ansteuerleitungen der Koppelelemente

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US241184A (en) * 1881-03-24 1881-05-10 Alexander Graham Bell Telephonic receiver
US2187115A (en) * 1939-03-02 1940-01-16 Bell Telephone Labor Inc Switching device
US2299203A (en) * 1940-07-05 1942-10-20 Bell Telephone Labor Inc Telephone system
US2397123A (en) * 1943-04-30 1946-03-26 Bell Telephone Labor Inc Contact operation
US2768241A (en) * 1954-12-21 1956-10-23 Itt Crossbar-switch selector system
US2954440A (en) * 1958-05-14 1960-09-27 Bell Telephone Labor Inc Coordinate switching arrangement
US3033939A (en) * 1957-04-05 1962-05-08 Siemens And Halske Ag Berlin A Coordinate switch
US3053938A (en) * 1955-04-05 1962-09-11 Siemens Ag Electromagnetically actuating relays in coordinate switches

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US241184A (en) * 1881-03-24 1881-05-10 Alexander Graham Bell Telephonic receiver
US2187115A (en) * 1939-03-02 1940-01-16 Bell Telephone Labor Inc Switching device
US2299203A (en) * 1940-07-05 1942-10-20 Bell Telephone Labor Inc Telephone system
US2397123A (en) * 1943-04-30 1946-03-26 Bell Telephone Labor Inc Contact operation
US2768241A (en) * 1954-12-21 1956-10-23 Itt Crossbar-switch selector system
US3053938A (en) * 1955-04-05 1962-09-11 Siemens Ag Electromagnetically actuating relays in coordinate switches
US3033939A (en) * 1957-04-05 1962-05-08 Siemens And Halske Ag Berlin A Coordinate switch
US2954440A (en) * 1958-05-14 1960-09-27 Bell Telephone Labor Inc Coordinate switching arrangement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347995A (en) * 1963-08-03 1967-10-17 Int Standard Electric Corp Make before break ball type armature reed relay switching network
US3593295A (en) * 1968-05-10 1971-07-13 Bell Telephone Labor Inc Rearrangeable switching network
US4611204A (en) * 1984-11-05 1986-09-09 Gte Communication Systems Corporation Arrangement for an electromechanical space switching network

Also Published As

Publication number Publication date
NL256783A (es)
NL135148C (es)
BE595838A (fr) 1961-02-01
DE1103396B (de) 1961-03-30
GB905452A (en) 1962-09-12

Similar Documents

Publication Publication Date Title
US2834836A (en) Static electrical code translating apparatus
US3400225A (en) Magnetic latching switch having residual magnetism for crosspoint hold means
US3271523A (en) Coupling fields with single conductor through-switching of extensions over electromagnetically actuated contacts
US3231679A (en) Telephone switching network
US2922847A (en) Distributing system
US2291481A (en) Telephone system
US3129293A (en) Automatic telecommunication switching systems
US3347994A (en) Switching reed relay matrix having unique releasing means
US2806088A (en) Communication system
US3280268A (en) Arrangements for automatically identifying calling numbers and class of service of calling lines
US2707727A (en) Selector for automatic telephone system provided with restricted levels
US2967212A (en) Identifying testing or discriminating device
US1568039A (en) Telephone-exchange system
US2292371A (en) Repeater circuit
US3499116A (en) Circuit arrangements for remotely controlled dictating installations having multiple subscriber and dictating machine stations to prevent engagement of a previously engaged dictating machine station
US3111558A (en) Relay circuit
US2235890A (en) Telephone system
US3639702A (en) Communication system traffic survey arrangement
US2675426A (en) Electronic induction number group translator
US3065306A (en) Electronic marking device
US2820101A (en) Selector circuit for automatic telephone systems
US3171898A (en) Telephone systems
Malthaner et al. An experimental electronically controlled automatic switching system
US3308245A (en) Loop sensing circuit
US2594923A (en) Call data recording telephone system