US2415437A - Telephone exchange apparatus - Google Patents

Telephone exchange apparatus Download PDF

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Publication number
US2415437A
US2415437A US348223A US34822340A US2415437A US 2415437 A US2415437 A US 2415437A US 348223 A US348223 A US 348223A US 34822340 A US34822340 A US 34822340A US 2415437 A US2415437 A US 2415437A
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United States
Prior art keywords
terminals
conductors
relays
multipled
support member
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US348223A
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English (en)
Inventor
Frank R Mcberty
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NORTH ELECTRIC MANUFACTURING Co
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NORTH ELECTRIC Manufacturing Co
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Priority to BE468622D priority Critical patent/BE468622A/xx
Priority to NL68221D priority patent/NL68221C/xx
Priority to CH173081D priority patent/CH173081A/fr
Priority to CH179273D priority patent/CH179273A/de
Application filed by NORTH ELECTRIC Manufacturing Co filed Critical NORTH ELECTRIC Manufacturing Co
Priority to US348223A priority patent/US2415437A/en
Priority to CH280333D priority patent/CH280333A/de
Priority to FR934845D priority patent/FR934845A/fr
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Publication of US2415437A publication Critical patent/US2415437A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/02—Constructional details
    • H04Q1/16—Wiring arrangements for selector switches or relays in frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches

Definitions

  • My invention relates, generall to telephone exchange apparatus, and it has particular relation to automatic telephone exchange apparatus of the all relay type such as described in Telephone Theory and Practice, by Kempster B. Miller, first edition, 1933, chapter VI.
  • An object of my invention is to reduce to a minimum the space required by the relays and conductors in telephone exchange apparatus.
  • Another object, of my invention is to so arrangethe terminals of the relays that connections thereto can be made by substantially straight conductors.
  • a further object of my invention is to arrange the sets of terminals of the relays that are multipled with the portions to which connection is made in straight lines so as to permit the multipled connections to .be made by straight conductors.
  • Still another object of my invention is to arrange the units and tens relays of each link in tandem on a support member with the portions of the sets of terminals that are connected in multiple arranged in straight lines to permit interconnection by straight conductors.
  • FIG. 2 is a sectional view taken along the line 22 of Figure 1, again showing somewhat diagrammatically the details of construction;
  • Figure 3 is a view, in front elevation, of the front terminal strip of one of the links;
  • Figure 4 is a view, in front elevation, of the ten units relays of one of the links
  • Figure 5 is a view, in front elevation, of two of the ten tens relays of one of the links;
  • Figure 6 is a view, in side elevation, of the two terminal strips for each link
  • Figure 7 is a view, in side elevation, of the ten units relays for each link
  • Figure 8 is a view, in side elevation, of two of i the ten tens relays of each link;
  • Figures 9 and 10 are detail sectional views showing different types of relay construction that can be employed for the units and tens relays.
  • Figure 11 is a rear elevation of two tens relays of adjacent links showing the arrangement of the conductors by means of which corresponding terminals of the tens relays of the difierent links are multipled.
  • the reference character l0 designates, generally, a rectangular frame that is formed by upright side members I I and interconnecting top and bottom members I2. As shown, the members II and I2 are angles,- but it will be understood that any other suitable type of frame members can be employed, such as channels, etc.
  • the frame members are fastened together by any suitable means 3 nection with a one hundred line telephone exchange.
  • Each link l5 comprises a support member 16 in the form of a back bar which, as will be hereinafter set forth, may form a part of the magnetic circuit of the relays, or it may be employed'solely as a support member for the relays which may be provided with selfcontained magnetic circuits.
  • the support members l6 are vertically positioned, as shown, in side-by-side relationship with the other support members of adjacent links, and are arrahged'to' have mounted thereon a group of ten unitsrelays l1 and a group of ten tens re'1a'ysl8.
  • terminal strips I9 andZil each comprise insulating strips 25 and 26 which are mounted by suitable brackets 21 and 28 on opposite sides of the support member or back bar IS.
  • the insulation strips 25 and 26 are identical and areeach provided with four rows of terminal lugs shown generally at 29 and 30, to which groups of conductors 3
  • the arrangement of the terminals of the relays is such that the condoctors 31 and 32 are positioned substantially in straight lines.
  • This arrangement of the conductors substantially decreases the capacity therebetween, since bare conductors are employed with the dielectric therebetween being air except for the support members 33 and 34. Because of this reduction in capacity between the conductors over that which exists when twisted pairs of conductors are employed, the noise level of the circuits is materially reduced.
  • the conductors 31 and 32 are preferably'foriiied of non-corrosive material such as stainless steel, and they may have a diameter of 0.020 inch.
  • each of the insulating trips 25 and 28 Extending from each of the insulating trips 25 and 28 is a pair of plate lik'e insulating members 35 and 36 provided with apertures 31 and 38 respectively, through which the external conductors can be passed for connection totheappropriate terminallug's 29 and 30.
  • a portion of the magnetic circuit is formed by the back barfor support member I'B. It comprises a portion of a generally U shaped magnetic member, the sides of which are formed by side pole pieces M. It has already been noted that the support member l6 extends throughout the entire length vo'f the link and that it is common to all of the relays. The side pole pieces ⁇ ! are likewise common to all of the relays, so that the generally U shaped niaghe'tic'me'mber formed by the support member N5 and the side members 41 is common to all of the units and tens relays'l'l and 1'8.
  • a generally T shaped magnetic member formed by a core 42 which comprises the stem of the T, and-a top member 43, the ends of which are spaced from the ends of the U shaped magnetic member or the upper" edges of the side magnetic "members 41' to form air gaps Althereb tWen.
  • a winding 45 is located around the core '42 or around the stem of the T-shaped magnetic memberforenergizing the magnetic circuit, as will be readily understood.
  • each of the air gaps 44 is a set of movable and stationarycooperating contact members.
  • Eachof the movable contact members comprises a metallic reedsfi whichcarriesa-contact member 47 or armature at its upper end for contact engagement with a cooperating stationary contact member 48 that is molded in a suitable strip 49 of insulating material and has a terminal portion 50 which projects upwardly therefrom.
  • the metallic reeds 46 are supported intermediate their ends by being molded in strips 5
  • are formed of thermoplastic material, such as polystyrene.
  • the lower ends 52 of the metallic reeds 46 constitute terminals to which conductors can be attached, as will be readily understood.
  • the metallic reeds 46 are spring-like in character and are so arranged that normally they urge the contact members or armatures 41 carried thereby away from the air gaps 44. It is desirable that the armatures 41 be spaced uniformly from their cooperating stationary contact membersj48.
  • stop members 53 in the form of glass rods are positioned along the backs ofthe armatures 41 and serve to provide the desired alignment.
  • the glass rods 53 extend the full length of all of the units and tens relays I! and I8, and thereby accurately align all of the armatures 41. It will be observed that the relaysherein described after they are assembled have no adjustment whatever.
  • the glass rods 53 are of particular significance in this connection. They are straight and remain permanently so, and do not change shape or size under variations of temperature or humidity. They avoid any tendency of the armatures to stick to them.
  • round glass rod has substantially only line contact with the back of the armature and hence minimum tendency to stick or slow down the motion of the armature in either direction.
  • the common and uniform spacing of the armatures relative to their contacts by means of the glass rods is particularly important for multiple relays such as the present where a relatively large num- 'ber of armatures are employed, and wherein a very small gap between the movable and stationary contacts is desired.
  • the armatures 41 serve a dual purpose. They ,carry current between the stationary contact members 48 and the associated metallic reeds 46. In addition, since they are formed of magnetic material, they are attracted toward the air gaps .44 on energization of the winding 45 to cause the desired contact engagement.
  • an alternate re- -lay construction is shown. In this construction, the back bar or support member
  • the U shaped magnetic .member a is provided by the self-contained U shaped magnetic member 54 in which the bottom ;and the sides are integral.
  • the U shaped magnetic member 54 may be common to all of the units and tens relays, or it may be individual thereto, or it may be individual to groups of these .relays, for example it may be individual to ten of the units relays I1 and to two of the tens 'relays l8.
  • Figures 4 and 7 of the drawings which show the arrangement of the ten .units relays H in a link, it will be noted that the insulating strip 49 in which the stationary ter- -minals 48 are molded extends over the entire group of relays.
  • the terminal extensions 50 are arranged in coplanar relationship with the extreme outer ends turned outwardly or inwardly, depending upon the particular connections that are tobe made thereto. It will also be noted that the terminal extensions 50 are of different lengths,
  • the terminal portions 52 of the'metallic reeds 46 extend at variable distances below'the support member 5
  • connectors 55 which extend at right angles to the plane of the paper on which Figure '7 is shown serve to interconnect them with the corresponding ones of the group of conductors 32, as will be readily understood.
  • thear- 'rangement and'the connections to the tens relays I8 are generally the same as described for the units'relays l1.
  • the msulation support member 49 is common to two of the tens relays l8.
  • the terminal extensions 50 carried thereby have certain of their outer ends turned outwardly and others turned inwardly, depending upon the connections that are to be made thereto.
  • the terminal extensions 50 on the opposite sides of the insulating support member 49 are arranged in coplanar relationship and, as shown in Figure 8, they are staggered inorder to permit connection to the conductors 3
  • the portions of the terminal extensions 50 that are multipled or connected together are arranged in straight lines so that the conductors 3
  • the extensions 52 from the metallic reeds 46 project beyond the support member l5 and'are arranged in coplanar relationship as previously described for the units relays l'l. Certain of the terminal portions 52 are connected by the conductors 32 to the terminal strip 29 associated with the particular link. The remaining ones of the terminal projections 52 are connected to corresponding ones of the tens relays on the adjacent links in a manner which will now be described.
  • portions of two adjacent links are illustrated showing the cross connections or common multiple connections between the tens relays l8.
  • the portions 52 of the metallic reeds 46 which project beyond the support member or back bar l6 constitute terminal connecting portions for the movable contact members.
  • the reeds 46 are mounted intermediate their ends in insulating strips 5
  • tallic reeds 46 are multipled with corresponding ones of the tens relays of adjacentlinks. "As
  • the terminal portions 52 on opposite sides of each link are located-in staggered relation so that they can be interconnected by straight conductors 60. It will be apparent that the portions of the terminals 52-to which the conductors 60 are connected on the various links are arranged in straight lines so that the conductors 60 can also follow this straight line pattern.
  • All of the conductors B are arranged in coplanar relationship and, are mounted in insulated spaced relation by conductor supports and spacers 6
  • are generally T shaped in construction, with the conductors 60 being threaded through suitable apertures in the stem 62 of the T.
  • upper and lower and inner and outer are used for convenience to indicate relative and not absolute position.
  • terms indicating direction or position is relative and not absolute. This is particularly to be observed since in use the relay is in a telephone installation generally disposed with the axis of its core in a horizontal position.
  • a multi-relay assembly comprising, in combination, a bar supported at its ends and constituting a support member, and a plurality of aligned relays carried by said support member; each relay including a winding, a magnetic circuit providing an air gap having its length extending longitudinally of said supporting bar, stationary and movable contact means, andterminals extending from said contact means to opposite front.
  • a multi-relay assembly comprising, in combination, a bar constituting a-support member, and a plurality of aligned relays carried by said support member; each relay including a winding, a, magnetic circuit providing an air gap having its length extending longitudinally of saidsupporting bar, stationary and movable contact means, and terminals extending from said stationary contact means away from said support member and in front of the same, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying said movable contact members at one end to cooperate with said stationary contact means while the other ends form terminals and from the considerable lengths of twisted pairs of extend y Said Support er n a direcployed in an exchange of the, all-relay type, as well as in the travelling contact type.
  • selector-connector, relays employed avoids noise at the relaycontacts where heretofore considerable disturbance has originated.
  • a multi-relay assembly comprising, in combination, a support member comprising a bar, a plurality of aligned relays carried by said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and of the top of the T spaced to form air gaps therebetween, said air gaps having their length extending longitudinally of said bar, a Winding around the stem of the T, stationary and a plurality of movable contact means associated with each air gap, and terminals extending from said contact means to opposite sides, front and back, of said support member certain sets of which terminals are connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line longitudinally of the bar, a plurality of substantially straight bare conductors extending longitudinally of said bar, each interconnecting a set of aligned terminals; and terminal strips on opposite sides of said support member providing terminal bar conductors to which said sets of multipled terminals and certain of the remaining terminals are connected for providing
  • a multi-relay assembly comprising, in combination, a bar constituting a support member, a plurality of aligned relays carried by said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and of the top of the T spaced to form air gaps therebetween, said air gaps having their length extending longitudinally of said bar, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said stationary contact means away from said support member, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond said support member in a direction opposite to that in which the terminals from said stationary contact means extend, certain sets of said terminals being connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line for interconnection by a single substantially straight conductor, substantially straight bare conductors
  • a multi-relay assembly comprising, in combination, a support member comprising a bar, and a plurality of aligned relays carried by said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and of the top of the T spaced to form air gaps therebetween, said air gaps having their lengths extending longitudinally of the bar, the parts forming said U shaped magnetic member being common to all said relays, a winding around the stem of the T, stationary and movable con tact means associated with each air gap, and
  • each set of multipled terminals to which connection is made being located'substantially in a straight line for interconnection by a single substantially straight conductor, and substantially straight bare conductors interconnecting said aligned multiple terminals.
  • a multi-relay assembly comprising, in combination, a support member comprising a bar, and a plurality of aligned relays carried by said support member; each relay including a winding, a magnetic circuit providing an air gap having its length extending longitudinally of said supporting bar, stationary and movable contact means,
  • said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond said support member in a direction opposite to that in which the terminals from said stationary contact means extend, certain sets of said terminals being connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line for interconnection by a single substantially straight conductor substantially straight bare conductors connecting each set of said aligned terminals; stop means consisting of vitreous bars of insulation extending along said contact members carried by said reeds for uniformly spacing the same from their respective stationary contact means, and terminal strips on opposite sides of said support member providing terminal conductors to certain of which said sets of multiplied terminals are connected'by said straight conductors and additional substantially straight longitudinally extending conductors connecting others of said terminal conductors and certain of the remaining relay terminals.
  • a multi-relay assembly comprising, in combination, a support member, a plurality of aligned relays carried by said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and of the top of the T spaced to form air gaps therebetween, the parts forming said U shaped magnetic member being common to all said relays, a windingaround the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said stationary contact means away from said support member, said movable contact means comprising conducting reeds stationarily mounted intermediate-their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond said support member in a direction opposite to that in which the terminals from said stationary contact means extend, certain sets of said terminals being connected in multiple, the portions of each set of multipled terminals to which connection'is made being located substantially in a straight line for interconnection by a single substantially straight conductor; stop means
  • a link for telephone exchange apparatus comprising, in combination, a bar serving as a support member, ten units relays and ten tens relaysmounted in tandem on said support member; each relay including a winding, a magnetic circuit providing an air gap having its length extending longitudinally of the bar, and stationary and movable cooperating contact means having substantially coplanar terminals extending in opposite directions front and back of said bar, certain sets of which terminals are connected in multiple, the portions of each set of multipled terminals to which connection is made being located in substantially a straight line longitudinally of the bar; and a single substantially straight conductor extending longitudinally of the bar and interconnecting each set of aligned multipled terminals.
  • a link for telephone exchange apparatus comprising, in combination, a bar serving as a support member, ten units relays and ten tens relays mounted in tandem on said support member; each relay including a winding, a magnetic circuit providing an air gap having its length extending longitudinally of said supporting bar,
  • each relay including a winding, a magnetic circuit providing an air gaphaving its length extending longitudinally of said supporting bar, stationary and movable cooperating contact means, and terminals extending from said stationary contact means forwardly from said support member, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while theother ends form terminals and extend behind said support mem-- her in a direction opposite to that in which the terminals from said stationary contact means extend, certain sets of saidterminals being connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line for interconnection by a single substantially straight conductor; substantially straight conductors extending longitudinally of said bar, each interconnecting a set of aligned terminals, and terminalstrips on opposite sides of said support member.
  • a link for telephone exchange apparatus comprising, in combination, a bar serving as a support member, and ten units relays and ten tens relays mounted in tandem on said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, the longitudinal axis of said air gaps extending longitudinally of said supporting bar, a winding around the stem of the T, stationary and movable contact means associated witheach air gap, and terminals extending from said contact means certain sets of which are connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line for inter connection by a single substantially straight concluster, and substantially straight conductors interconnecting said aligned multipleterminals.
  • a link for telephone exchange apparatus comprising, in combination, a bar serving as a support member, ten units relays and ten tens relays mounted in tandem on said supportmember; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, the longitudinal axis of each of said air gaps extending longitudinally of said supporting bar, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said contact means to opposite sides of said support member certain sets of which are connected in multiple, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line for interconnection by a single substantially straight conductor; substantially straight conductors extending longitudinally of said bar, each interconnecting a set of aligned terminals, and terminal strips on opposite sides of said support member providing terminal conductors to certain of which said sets of multipled terminals are connected by said straight conductors, and additional substantially straight
  • a link for telephone exchange apparatus comprising, in combination, a, bar serving as a support member, ten units relays and ten tens relays mounted in tandem on said support member; each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, said air gaps having their longitudinal axes extending longitudinally of said supporting bar, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said stationary contact means forwardlyfrom said support member, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact amuse:
  • said, supports memben providing terminal conductors to: certain of.:which .saidtsets-of: multipled terminals are con-- nectedbyr said. straight: conductors, an addi tional substantially: straight? longitudinally; ex:- tending; conductorszconnecting others of 1' said ;ter:-- minal; conductors and. certaimof: thes remaining relay terminals.
  • stem of the T, stationary and movable'contactrmeans; associated with each air gap' and': terminals extending: from said: contact means.
  • a link for: telephone exchange apparatus comprising, in combination, abar servingia's a support" member, tenlunits relays and ten tens relays mounted in; tandem on..said. supportimem' bery each relay including: a. winding,- a magnetic circuit providing an: air gap; having its: length extending longitudinally of said: supporting bar, stationary and movable cooperating: contact means; and terminals.
  • said stationary' contact means forwardlyifrom: said: sup port member, said movable contact means:- comaprising conducting reeds stationarilyz' mounted intermediate their ends and" carrying contact members at one end't'o cooperate-with: said staa tionary-contact means while the other ends form terminals and extend back of saidsupporlumemher in adirection opposite to that in whichthe terminals from said stationary contact. means. ex.- tend, certain sets of said terminals beingi 0011-. nected' in multiple, the portions of each. set of. multipled terminals to which connection .is; made l'a'eing 'locat'ed substantially in astraight line for.
  • stop means consisting. of bars pf vitrreous insulation extending along said: contact members carried" by said reeds for uniformly spacing thesame from then-respective stationary contact means; substantially straight conductors: extending longitudinally of said bar, each inter. connecting a set of aligned terminals; and. ten-- minal' strips onopposite sides of said support member providing terminal conductors to certain. of which saidsets of multipled terminals are? con nected by saidst'raightconductors; and additi'onal; substantially straight longitudinally extending I4 conductors 1 connecting: others of? said terminal conductors and. certain of the" remaining relay terminals.
  • a linkf for telephone exchange apparatus comprising; in combination, a support member,- ten units v relays andkten" tens relays mounted: intandem; on said. support" member; each. relay: includingia' magnetic circuit; formed .by: generally T and U :shaped interfitting; magnetic. members with the; ends of. the U! and. the top. ofv thev T spaced, to: form. air; gaps? therebetween, the partsi forming: saidt.
  • U. shaped magnetic members: being common to. all;said..re1a ys; alwinding aroundlthe stem of. the T,.
  • stationary: andi movable contact means:associated;with each.air gap;- and;termlnalst extending from: said: stationary: contact; means; away from. said support member; saidmovable contactvmeans comprising: conducting reeds-:stationarily. mounted intermediate: their: ends and carryingcontact members atone end:- to..-cOope1.-
  • each'relay includinga winding; a'magnetic cir; cuit; and stationary:- and. movable cooperating. contact means having; substantially: coplanar. terminals-extending. toiopposite. sidesof vtheasupport. member: individual thereto certain of which are multiple-d with corresponding: ones. of relays: of. the. other; links to: formisets of multipled terminals;.,the.- portions of'. each set l of. multipled terminals to which. connectionlisi madebeing located in substantially a straightline; a singlesubstam tially. straight conductor.- interconnecting: each set. of multipled. terminals, and; terminal strip. means. common toall: of: the; links to which conductors are connected. 1 v
  • said movable contact means c mprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support member individual thereto in a direction opposite to that in, which the terminals from said stationary contact means extend,.
  • certain of said terminals being multipled with corresponding ones of relays of. the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; a single substantially straight conductor interconnecting each set of multipled terminals, and terminal strip means common to all of the links to which said conductors are connected.
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends-of the U and the top-of the'T spaced to form air gaps therebetween, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said contact means certain of which are multipledwith corresponding 'ones'of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a'straight line; and a single substantially straight conductor interconnecting each set of multipled terminals.
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting mag netic members with the ends of the U and the top of the T spaced to form air gaps therebetween, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said contact means to opposite sides of the support member individual thereto certain of which are multipled with'corresponding ones of relays of the other links to form sets of multipled terinitials, the portions of each set of multipled terminals to which connection is made being'located in substantially a straight line; a single substantially straight conductor interconnecting each set of multipled terminals, .and terminal strip means common to all of the links to which said conductors are connected.
  • said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means whilelthe other ends form terminals and extend beyond the support member individual thereto in a direction'opposite to that in which the terminals from said stationary contact means extend, certain of said terminals being-multipled with corresponding ones of relays of the other links toform sets of multipled terminals, the'portions of each set of multipled terminals to which connec-' tion is made being located substantially in'a straight line; a single substantially straight conductor interconnecting each set of multipled terminals, and terminal strip means common'to all of the links to which said conductors are con nected.
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, the parts forming said U shaped magnetic member being common to all of the relays of each link, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said contact means certain'of which .are multipled with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; and a single substantially straight conductors interconnecting each set of multipled terminals.
  • a multi-link assembly for telephone exchange apparatus in combination, support members one for each link mounted in side-by-sicle relation, ten units relays and ten tens relays cuit, stationary and movable cooperating con-c tact means, and terminals extending from said stationary contact means away from the support member individual thereto, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooper ⁇ - ate with said stationary'contact means while the other ends form terminals and extend beyond the support member individual thereto ina direction opposite to that in which the terminals from said stationary contact means extend, certainof said terminals being multiplied with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of eachsct of multipled terminals to which connection is made being locatedsubstantially ina straight line; stop means extending along said contact members carried by said reeds for--uniformly spacing, the same from their respective station 17- conductor interconnecting each set of multipled
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, the parts forming said U shaped magnetic member being common to all of the relays of each link, a winding around the stem of the T, stationary and movable contact means associated with each air gap, and terminals extending from said stationary contact means away from the support member individual thereto, said movable contact means comprising conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support member individual thereto in a direction opposite to that in which the terminals from said stationary contact means extend, certain of said terminals being multipled with corresponding ones of relays of the other links to form sets of multipled terminal
  • each relay including a winding, .-a magnetic circuit, and stationary and movable cooperating contact'means having substantially coplanar terminals extending horizontally in opposite directions certain sets of which in each link are vertically connected in multiple and certain others of which are horizontally connected in multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; and a single substantially straight conductor interconnecting each set of multipled terminals.
  • a multi-link assembly for telephone exchange apparatus in combination, support members one for each mounted vertically in side-by-side relation, ten units relays and ten tens relays mounted in tandem on each support member; each relay including a widing, a magnetic circuit, and-stationary and movable cooperating contact means having substantially coplanar terminals extending horizontally to pposite sides, of the support member individual thereto certain sets of which in each link are vertically connected in multiple and certain others of which are horizontally connected in multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is madebeing located substantially in a straight line; a single sub stantially vertical conductor interconnecting each set of multipled terminals of .each link, terminal strip means on opposite sides of each support member to which the verticaly multipled terminals and certain of the remaining terminals of each link are connected, a single substantially horizontal conductor interconnecting each set of multipled terminals of all of
  • each relay including a winding, a mag.- netic circuit, and stationary and movable cooperating contact means, and terminals extending horizontally from said stationary contact means away from the support member individual thereto, said movable contact means comprising horizontal conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support means individual thereto in a direction opposite to that in which the terminals from said stationary contact means extend, certain sets of said terminals in each link being vertically connected in multiple and certain others of said terminals in each link being horizontally connected in multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being lo?
  • each relay including a magnetic'circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, stationary and movable contact means associated with each air gap, and substantially coplanar terminals extending horizontally in opposite directions from said stationary andlmovable contact means respectively certain sets of which in each link are vertically connected in multiple and certain others of which are horizontally connected in multiple with corresponding Ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight 19 line; and a single substantially straight conductor interconnecting each set of mutipled terminals.
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with theends of the U and the top of the T spaced to form air gaps therebetween, stationary and movable contact means associated with each'air'gap, andsubstantially coplanar terminals extending horizontally in opposite directions from said stationary 'and movable contact means respectively to opposite sides of the support member individual thereto certain sets of which in each link are vertically connected in multiple and certain others of which are horizontally connected in' multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; a single substantially vertical conductor interconnecting each set of multipled terminals of each link, terminal strip means on opposite sides of each support member to which
  • each relay including a magnetic circuit formed'by generally T and U shaped interfitting magnetic members with the ends of the 'U and the top of the T spaced to form air gaps "therebetween, stationary and movable contact means associated with each air gap, and terminals extending horizontally'fro'm said stationary contact means away from the support member individual thereto, said movable contact means comprising horizontal conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support means individual thereto in a direction opposite to that in which the terminals from said stationary contact'means extend, certain sets of said terminals in each link being vertically connected in multiple and certain others of said terminals in each link being horizontally connected in multiple with corresponding ones of relays of the other links to form sets
  • each relay including a magnetic circuit formed by generally T and U shaped interfitting magnetic members with the ends of the U and the top of the T spaced to form air gaps therebetween, the parts forming said U shaped magnetic member being common to all of th relays of ach link, stationary and movable contact means associated with each air gap, and substantially coplanar terminals extending horizontally in opposite directions from said stationary and movable contact means respectively certain sets of which in each link are vertically connected in multiple and certain others of which are horizontally connected in multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; and a single substantially straight conductor interconnecting each set of multipled terminals.
  • each relay including a winding, a magnetic circuit, and stationary and movable coopcrating contact means, and terminals extending horizontally from said stationary contact means away from the support member individual thereto, said movable contact means comprising horizontal conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support means individual thereto in a direction oppositeto that in which the terminals from said stationary contact means extend, certain sets of said terminals in each link being vertically connected in multiple and certain others of said terminals in each link being horizontally connected in multiple with corresponding ones of relays of the other links to form sets of multipled terminals, the portions of each set of multipled terminals to which connection is made being located substantially in a straight line; stop means extending along said contact members
  • each relay 'includnig a magnetic circuit formed by-generally T and U shaped interfitti'ng magnetic members with the ends of the U and th top of the T spaced to form air gaps therebetween, the parts forming said U shaped magnetic member being common to all of the relays of each link, stationary and movable contact means associated with each air gap, and terminals extending horizontally from said stationary contact means away from the support member individual thereto, said movable contact means comprising horizontal conducting reeds stationarily mounted intermediate their ends and carrying contact members at one end to cooperate with said stationary contact means while the other ends form terminals and extend beyond the support means individual thereto in a direction opposite to thatin which the terminals from said stationary contact means extend, certain sets of said terminals in each link being vertically connected in multiple and certain others of said terminals
  • a plurality of links each including a plurality of relays having relatively movable contact members with terminal connectors certain sets of which are multipled, the portions of each set of terminal connectors to which connection is made being located substantially in a straight line, and a substantially straight conductor interconnecting each set of multipled terminal connectors, the conductors interconnecting the sets of multipled terminal connectors being disposed in insulated spaced relation with substantially only an air dielectric therebetween whereby the capacity thereof is substantially zero.
  • a plurality of links each including a plurality of relays having relatively movable and engageable contact members with substantially only the portions of the contact members adapted to be mutually engaged in parallel relation whereby the capacity therebetween is substantially zero
  • terminal connectors for'said contact members certain sets of Which are multipled, the portions of each set of terminal connectors to which connection is made being located substantially in a straight line, and a substantially straight conductor interconnecting each set of multipled terminal connectors, the conductors interconnecting the sets of multipled "terminal connectors being disposed in insulated spaced relation with substantially only an air dielectric therebetween whereby the capacity thereof is substantially zero.
  • a plurality of links each including a plurality of relays each having relatively stationary and movable and engageable cooperating contact members with substantially only the portions of the contact members adapted to be mutually engaged in parallel relation whereby the capacity therebetween is substantially zero, armature means carried by each movable contact member, and electromagnetic means coopcrating with said armature means for operating said movable contact members into engagement with their respective stationary contact members; terminal connectors for said contact members certain sets of which are multipled, the portions of each set of terminal connectors to which connection is made being located substantially in a straight line, and a substantially straight conductor interconnecting each'set of multipled terminal connectors, the conductors interconnecting the sets of multipled terminal connectors being disposed insulated spaced relation with substantially only an air dielectric therebetween whereby the capacity thereof is substantiallyzero.
  • a pluraltiy of links each including a plurality of relays each having relatively stationary and movable and engageable cooperating contact members with substantially only the portions of the contact members adapted-to'be mutually engaged in parallel relation whereby the capacity therebetween is substantially zero, armature means carried by each movable contact member, and electromagnetic means cooperating with said armature means for operating said movable contact members into engagement with their respective stationary contact members, the mass of said movable contact members and armature means being relatively small as compared to the force of attraction capable of being exerted by said electromagnetic meanswhereby the contact-engagement between said contact members is effected without chattering and noise on the circuit in which they are connected is sub.- stantially reduced; terminal connectors for said contact members certain sets of-Which are multipled, the portions of eachset of terminal connectors to which connection is made being located substantially in a straight line, and a substantially straight conductor interconnecting each set of'multipled terminal connectors, the conductors inter
  • a selective interconnecting device a, plurality of parallel conductors in one plane, a plurality of parallel conductors in another plane and spaced from, but substantially in a right angle relation to the first mentioned plane, a substantially straight interconnecting conductor attached to each conductor in the first mentioned plane extending to a different conductor in the second mentioned plane on a line which constitutes substantially the shortest distance between the two conductors to be interconnected, a break in the interconnecting conductor, an independent circuit-closer for each of the said breaks,. and means for operating any of said circuit closers, as
  • a selective interconnecting device a plurality of parallel conductors in one plane, a plurality of parallel conductors in another plane and spaced from, but at right angles thereto, where- .by .each of the conductors in the secondplane crosses each of the conductor-s in the first mentionedplane, a substantiallytstraight normally open interconnecting conductor extending be tween each of the first-mentionedconductors and adifierent one of the second-mentioned conductor on a line which constitutessubstantially the minimum distance between the two conductors to be interconnected, an independent group operat. ed electro-magnetic circuit-closer for each of said normal breaks, whereby any conductor in the f rst-mentioned plane may be connected -.to any conductor in the second-mentioned plane.
  • a circuit interconnector a plurality of parallel. conductors in one plane, another plurality of parallel conductors in another plane, all of said second-mentioned conductors crossing those of the first-mentioned conductors substantially atright angles, but not in contact therewith, the saidgroups being separated from one another spacially, a substantially straightinterconnectingconductor extending from each of said firstmentioned conductors to each of said secondmentioned conductors approximately in thefline .ofn inimum distance between said conductor-sat their crossing,,a normally-open break in each of the interconnecting conductors, an independent group, operated electro-magnetic circuitcloser or each break, each of the circuit-closers being located physically between the two said groups of conductors, and means for operating any of the said circuit-closers, r
  • an interconnector two groups of straight wire conductors indifferent planes respectively crossing. each other, a direct substantially straight permanent interconnecting conductor -.,extending fromeach crossing. conductor of one group to adifferent crossing conductor of the othergroup on a line which is substantially the minimum distance between them,;a normally? open, break insaid interconnecting conductor, an independent electro magnetic circuit closer therefor, and selective means for operating independently any one of said circuit-closers, as described-H...
  • said cross connecting conductor being composed in part of a contact-anvil, a contact-point and a reed carrying said contact-point, said contact-point and said contact-anvil being normally separated, and an independent operating-mag- -net for closing any contact upon its .anvil, as described.
  • an interconnectin conductor leading from each of said first-mentioned conducgtors to'a different one of each second-mentioned crossing conductors on a line which is substantially the shortest distance between them, said interconnecting conductor being composed in part of a contact-anvil, a contact-point, a flexible reed carrying the contact-point, an independent, individual.
  • a group of telephone line-conductors consisting of straight parallel wires in a plane, a group of line or link conductors consisting of like parallel straight wire conductors in a plane at right angles thereto, whereby each one of said first-mentioned conductors crosses each member of said second group, substantially straight independent interconnecting conductors.
  • a' vertical longitudinal supporting bar comprising a horizontal core supported on front of and at right angles to the bar, an outer polepiece for the outer end of the core, said polepiece having edges parallel to' thelongitudinal anisof the bar and a p'ai'r'cf platelike polepieces for the inner end of the core, said platelike polepieces lying on opposite'sid'es of the core and having their outer edges separated from the edges of the outer polepiece by air gaps, a series of parallel straight horizontal wire reeds lying in parallel planes disposed laterally of the respective platelike pole pieces, said reeds 'liaving fixed on their upper ends .barlike armatures extending lengthwise of the reeds-and disposed transversely across the-corresponding air gaps, a vertical bar of insulation lying at'the side of each platelike polepieceand embedding and rigidly holding the corresponding reeds intermediate their length, the inner ends of the,
  • said contacts having outwardly extending terminals disposed in parallelwertical planes lying at the .lateral sidespfthe said latter lbar of insulation, -a series of bare substantially straight conductors extending longitudinally of said supporting bar disposed in two parallel vertical-planes adiasaidreed, ,amagnet for. operatingsaid armature, ,7 cent thecorresm e .outwardly e t nd ncterminal's, said terminals extending to predetermined points and being connected to predeter mined onesof said adjacent vertically extending conductors, and insulators holding said last named longitudinal conductorsin fixed relation to each other and to said relay.
  • a vertical supporting bar a relay mounted on said bar and having a stationary magnet structure providing an air gap at each side thereof extending longitudinally of said bar, armatures disposed in planes on opposite sides of the magnet structure and compris ing oblong magnetic bars extending horizontally across the air gaps transversely thereof, wire reeds having said armatures fixed upon the upper ends thereof, vertical supporting bars of insulation imbedding'said reeds intermediate their ends, said bars being fixedly mounted relative to the stationary magnet structure, theinner ends of I the reeds extending back of the supporting bar,
  • a relay type'link for telephone exchange apparatus the combination of a firstgroup of substantially coplanar parallel vertically extending conductors disposed in a substantially vertical plane, a second group of substantially coplanar parallel horizontally extending; conductors disposed behind said first group of conductors in a vertical :plane and the conductors of said second group being disposedisubstantially at right angles to the plane of said first group of conductors but spaced'rrom'thern, insulating sup- 26 ports for the conductors of each group, substantially straight parallel coplanar interconnecting conductors extending in substantially straight horizontal lines betweenconductors of the first group and corresponding conductors of the sec-' ond' group, said interconnecting conductors each including a stationary and a movable relay contact, and a common relay magnet structure disposed on the space between said groups of vertical and horizontal conductors for operating a group of said movable relay contacts in unison.
  • said interconnectingconductors comprise outer sections and inner sections, the outer sections comprising stationary contacts all disposed in a ver-' tical line substantially parallel to the plane of the first group of conductors, and terminal members for the contacts extendingfrom the contacts horizontally at one side of the plane of the conductors of the first group, said terminal members extendingl various distances outwardly and having lateral'lyoiise't end portions by which they engage and'ar'e individually connected to the correspond ing ones of the conductors of the first group, the inner sections comprising a bank of horizontally extending substantially coplanar wire reeds, each reed having an armature bar at its outer end adapted to engage the stationary contact "of the corresponding outer section, a common insulating support for said reeds engaging themintermediate their ends, the inner ends of the reeds being connected to "corresponding ones of said conductors" of the second group, and a common insulating support for the aligned stat
  • T1 1 '52.- In a relay type link for telephone exchange apparatus, the combination of a first group of substantially coplanar parallel vertically "extending conductors'disposed in a substantially vertical plan'efa second" group of substantially coplanar parallel horizontally extending conductors disposed behind said first group of conductors in a vertical plane and the conductors of said sec- 0nd group being disposed substantially at right anglesto the-plane of said first group of conductors, insulatingsupports forthe conductors of'each group, a first set of substantially paral-' lel coplanar' interconnecting conductors extending'in' substantially straight horizontal lines b'e tween conductors of the first group and corresponding conductors 'of the second group, a third group of substantially coplanar parallel vertical- 1y extending conductors disposed in substantially a vertical plane'behind'the conductors of the second set, a second set of substantially parallel coplanar interconnecting conductorsextending in'subs'

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnets (AREA)
US348223A 1932-10-24 1940-07-29 Telephone exchange apparatus Expired - Lifetime US2415437A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE468622D BE468622A (en)) 1940-07-29
NL68221D NL68221C (en)) 1940-07-29
CH173081D CH173081A (fr) 1932-10-24 1933-10-03 Appareil à imprimer au moyen de clichés perforés dits "stencils".
CH179273D CH179273A (de) 1933-01-31 1934-01-26 Zwischenfrequenzüberlagerungs-Empfangsanordnung, bei der eine Mehrgitterröhre als erster Detektor und als Oszillator verwendet wird.
US348223A US2415437A (en) 1940-07-29 1940-07-29 Telephone exchange apparatus
CH280333D CH280333A (de) 1940-07-29 1946-10-08 Schaltanlage für eine automatische Fernsprech-Amstanlage.
FR934845D FR934845A (fr) 1940-07-29 1946-10-15 équipement téléphonique pour bureaux centraux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US348223A US2415437A (en) 1940-07-29 1940-07-29 Telephone exchange apparatus

Publications (1)

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US2415437A true US2415437A (en) 1947-02-11

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US348223A Expired - Lifetime US2415437A (en) 1932-10-24 1940-07-29 Telephone exchange apparatus

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US (1) US2415437A (en))
BE (1) BE468622A (en))
CH (1) CH280333A (en))
FR (1) FR934845A (en))
NL (1) NL68221C (en))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573889A (en) * 1948-12-14 1951-11-06 Hans P Boswau Automatic telephone switching mechanism
US2742535A (en) * 1951-05-15 1956-04-17 North Electric Co Automatic telephone system

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US701499A (en) * 1900-08-27 1902-06-03 Anderson John Automatic telephone-exchange.
US767703A (en) * 1904-01-18 1904-08-16 Phoenix Electric Mfg Company Automatic electrical regulator.
US1046952A (en) * 1909-12-21 1912-12-10 Ernst Blos Automatic telephone system.
US1215859A (en) * 1916-05-22 1917-02-13 Western Electric Co Switch mechanism.
US1275846A (en) * 1917-12-14 1918-08-13 Gen Electric Switch structure.
US1318178A (en) * 1916-10-25 1919-10-07 Philip W Goewey Circuit-controller.
US1374366A (en) * 1921-04-12 dickerson
US1472503A (en) * 1922-06-20 1923-10-30 Western Electric Co Switching device
US1480202A (en) * 1924-01-08 Telephone system
US1528767A (en) * 1922-04-27 1925-03-10 Western Electric Co Switching device
US1659627A (en) * 1925-10-12 1928-02-21 Ericsson Telefon Ab L M Selector switch
US1819675A (en) * 1929-05-04 1931-08-18 Bell Telephone Labor Inc Switch
US2123229A (en) * 1937-03-31 1938-07-12 Bell Telephone Labor Inc Selector switch
US2187115A (en) * 1939-03-02 1940-01-16 Bell Telephone Labor Inc Switching device
US2214907A (en) * 1938-12-30 1940-09-17 Associated Electric Lab Inc Switching apparatus

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374366A (en) * 1921-04-12 dickerson
US1480202A (en) * 1924-01-08 Telephone system
US701499A (en) * 1900-08-27 1902-06-03 Anderson John Automatic telephone-exchange.
US767703A (en) * 1904-01-18 1904-08-16 Phoenix Electric Mfg Company Automatic electrical regulator.
US1046952A (en) * 1909-12-21 1912-12-10 Ernst Blos Automatic telephone system.
US1215859A (en) * 1916-05-22 1917-02-13 Western Electric Co Switch mechanism.
US1318178A (en) * 1916-10-25 1919-10-07 Philip W Goewey Circuit-controller.
US1275846A (en) * 1917-12-14 1918-08-13 Gen Electric Switch structure.
US1528767A (en) * 1922-04-27 1925-03-10 Western Electric Co Switching device
US1472503A (en) * 1922-06-20 1923-10-30 Western Electric Co Switching device
US1659627A (en) * 1925-10-12 1928-02-21 Ericsson Telefon Ab L M Selector switch
US1819675A (en) * 1929-05-04 1931-08-18 Bell Telephone Labor Inc Switch
US2123229A (en) * 1937-03-31 1938-07-12 Bell Telephone Labor Inc Selector switch
US2214907A (en) * 1938-12-30 1940-09-17 Associated Electric Lab Inc Switching apparatus
US2187115A (en) * 1939-03-02 1940-01-16 Bell Telephone Labor Inc Switching device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573889A (en) * 1948-12-14 1951-11-06 Hans P Boswau Automatic telephone switching mechanism
US2742535A (en) * 1951-05-15 1956-04-17 North Electric Co Automatic telephone system

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Publication number Publication date
NL68221C (en))
FR934845A (fr) 1948-06-02
CH280333A (de) 1952-01-15
BE468622A (en))

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