US3366849A - Two-coordinate lock-out circuit - Google Patents

Two-coordinate lock-out circuit Download PDF

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Publication number
US3366849A
US3366849A US442464A US44246465A US3366849A US 3366849 A US3366849 A US 3366849A US 442464 A US442464 A US 442464A US 44246465 A US44246465 A US 44246465A US 3366849 A US3366849 A US 3366849A
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United States
Prior art keywords
relay
relays
circuits
lock
common
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Expired - Lifetime
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US442464A
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English (en)
Inventor
Raedt Egide Jacob Hendrik De
Graeve Roger Paul De
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International Standard Electric Corp
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International Standard Electric Corp
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Publication date
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Publication of US3366849A publication Critical patent/US3366849A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/36—Circuit arrangements for ensuring correct or desired operation and not adapted to a particular application of the selector switch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Definitions

  • a two-coordinate lock-out relay circuit for selectively interconnecting common circuitry to a plurality of individual circuits.
  • the lock-out arrangement comprises a plurality of first single winding relays which are arranged in horizontal and vertical coordinates. These relays perform the interconnection.
  • a common relay is provided which is associated with every horizontal coordinate. The lock-out is accomplished under the control of three contacts on the first relay and one contact on the common relay.
  • the invention relates in general to lock-out circuits and in particular to two-coordinate lock-out circuits comprising aplurality of relays and such that no set of two relays having a common coordinate can constitute a stable operated combination.
  • a common relay is associated with each set of relays having the same coordinate in one direction.
  • the common relay is connected to operate subsequent to the operation of any associated relay, thereby disabling the operating circuits of said associated relays.
  • One of the associated relays is held operated through a locking circuit provided for said associated relays.
  • the two-coordinate lock-out circuit may be used with advantage as a means to control the connection between one out of a first plurality of circuits and one out of a second plurality of circuits.
  • one plurality of circuits may comprise m common circuits while the second plurality of 50 circuits may comprise n individual circuits, any of which may have to be connected to any of the m common cir- ,7 cuits. It may thus be desirable to establish as many as m simultaneous independent interconnections, assuming that m is smaller or equal to n. 5
  • a general object of the invention is to simplify the two-coordinate lock-out circuit defined above.
  • a related object of the invention is to provide a twocoordinate lock-out relay circuit having in common circuits which are available to be connected to any of n 60 individual circuits; wherein m separate connections may beindependently and simultaneously established. using mn single winding relays.
  • relays having thesame coordinate in a vertical direction are interconnected in serial lock-out circuits.
  • Each of the lock-out circuits involve two normally closed series circuits both controlled by said relays.
  • One end of one series circuit is coupled to the other end of the other series circuit through a source of relay operating potential.
  • Each of the relays is coupled through connecting means between two points of said series circuits in such a way that I only one relay out of those having the same coordinate in the vertical directionmay be held operated.
  • Serial lock-out circuits involving the connection of relays between two normally closed series circuits, usually constituted by chains of break contacts pertaining to said relays, is already known in the art.
  • the use of such serial lock-out circuits involving two chains of contacts is particularly advantageous for the two-coordinate lock-out circuits since such circuits reduce the number of contacts necessary to perform the full lock-out function to only two contacts per relay in addition to that needed for the holding and lock-out function in the first direction. These are the two contacts involved in the two series chains.
  • the number of additional contacts per relay necessary to perform the full lock-out function is m1 and hence, depends on the number of circuits.
  • the number of such contacts is wholly independent of the number of circuits.
  • the size of the interconnecting arrangement is not limited and that the actual relay involved in the two-coordinate lock-out circuit may also be used to perform the connecting function, since most of its contacts will be available therefor.
  • auxiliary relays are used to perform the connecting function.
  • each relay must be a two-winding relay; whereas this invention enables the use of single winding relays.
  • circuits of a first kind such as common circuits
  • n circuits of a second kind such as individual circuits
  • any common circuit may be interconnected with any individual circuit.
  • n circuits of a second kind such as individual circuits
  • any common circuit may be interconnected with any individual circuit.
  • m is smaller than n.
  • These common and individual circuits are not shown, but merely the lock-out interconnections between the mn relays which as stated above, may also be used to perform the required interconnecting 'fiunction.
  • Only the detailed circuitry for one of these mn relays has been shown since any of these relays is operated in exactly the same way. This is also true for the m common relays and accordingly only one of these has been shown.
  • the two-coordinate lockout circuit involves mn identical circuits but only one of these has been shown in full detail, i.e. U together with the two end circuits on the same horizontal, i.e. U and U and also together with the two end circuits on the same vertical, i.e. U and U
  • Each circuit unit such as U includes only one relay such as R with its contacts r -r as well as an operating contact s, which is normally open but which is closed when it is desired to actuate relay R.
  • a break contact p pertaining to the common relay P which is provided for the n circuit units U U Battery indicated by the arrowhead extends vertically from each of the n uppermost circuit units such as U through all the circuit units in the same column and through a break contact of the relay included in the unit, such as r with the'exception of the bottommost unit such as U
  • ground extends vertically from the lowermost unit such as U through all the other units in the same column, also through a break contact of each relay involved in that column, such as r for circuit unit U but with the exception of the uppermost circuit unit such as U
  • these two break contacts 1' and r may be coupled through the winding of the relay R in series with break contact p upon closure of the operating contact s.
  • relay R In operating relay R also closes make contact 1- and this will provide a locking ground for relay R through the break contacts (not shown) corresponding to contact r in the units on the left of U such as U At the same time, the displacement of the armature of contact r will prevent the locking ground originating at U from being provided to units such as U on the right of unit U
  • contact r contact r is also a change-over contact and upon closure of the make contact r ground will be supplied to the horizontal connection, common for the n units from U to U for leading to the winding of relay P whose other end is directly connected to battery, indicated by the arrowhead.
  • common relay P Responsive thereto common relay P will operate and the opening of its 11 break contacts p will interrupt the operating circuits for the associated R relays except for the R relay shown on the figure which will remain operated through make contact r Now that the relay R shown on the figure has been operated, it is clear that none of the other R relays having a coordinate common with that of the relay shown can be operated. But other of the mn relays R can be operated in the same manner as described above to connect another individual circuit with another common circuit.
  • n contacts s corresponding to a same row and accordingly to a same common circuit are closed simultaneously in order to establish a connection between this common circuit and one of the 21 individual circuits.
  • Any of the n unoperated R relays which corresponds to a vertical, i.e. to an individual circuit, in which the R relays are not operated, i.e. for which the individual circuit is thus available will be energized by the closure of its associated s contact.
  • the chain of break contacts r only the left-handmost R relay of the chain will be able to energize.
  • a two-coordinate lock-out arrangement for use in selectively and simultaneously interconnecting ones of a plurality of common circuits to any of a plurality of individual circuits, said two-coordinate arrangement comprising a plurality of first single winding relays for accomplishing said interconnect arrangement in horizontal and vertical coordinates, a common relay individually associated with each of said horizontal coordinates and operated responsive to the operation of any of said first relays in said associated horizontal coordinate, lock-out means for assuring that only one of said first relays in any of said vertical or horizontal coordinates is stably operated at any time to affect said interconnection, and wherein said lock-out means are controlled only by said operated first relay and said associated common relays.
  • each of said first relays have first and second break contact means individually associated there with, said first break contact means of each of said first relays in the same one of said vertical coordinates serially connected to form a first set of normally closed contacts, said second break contact means of each of said first relays in the same ones of said vertical coordinates serially connected to form a second set of normally closed contacts, means for connecting the uppermost contact of said first set to a source of relay operating power, means for connecting the bottommost contact of said second set to ground potential, individual make contact means in series with the coil of each of said first relays for connecting said relays between said first set and said second set, and above said break contact in said first set and below said break contact in said second set responsive to the closure of said individual make contact, whereby operating power is no longer available to the other of said first relays in the same vertical'coordinate with said operated first relay.
  • a two-coordinate lock-out relay circuit for interconnecting common circuits to individual circuits comprising a matrix of individual circuits arranged in horizontal rows and vertical columns, a common circuit associated with each row, lock-out relay means included in each common circuit, first and second normally closed series circuit passing through each of said vertical columns, connecting means for connecting the windings of said lock-out relays between said first and second series circuits, means for coupling one end of the first series circuits to the other end of said second series circuits through a source of relay operating potential, make means in saidconnecting means for energizing said lock-out relays through said first and second series circuits, common relay means in said comm-on circuits operated responsive to the operation of any of said lockout relays in said associated rows, relay contact means in said connecting means operated responsive to the operation of said common relay means for opening said connecting means, and further relay contact means operated responsive to the operation of said lock-out relays for operating said series circuits and connecting said operated lock-out relay between one of said vertical series circuits and a horizontal series

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Relay Circuits (AREA)
US442464A 1964-03-31 1965-03-24 Two-coordinate lock-out circuit Expired - Lifetime US3366849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6403386A NL6403386A (xx) 1964-03-31 1964-03-31

Publications (1)

Publication Number Publication Date
US3366849A true US3366849A (en) 1968-01-30

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ID=19789687

Family Applications (1)

Application Number Title Priority Date Filing Date
US442464A Expired - Lifetime US3366849A (en) 1964-03-31 1965-03-24 Two-coordinate lock-out circuit

Country Status (5)

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US (1) US3366849A (xx)
BE (1) BE661797A (xx)
CH (1) CH424871A (xx)
GB (1) GB1090651A (xx)
NL (1) NL6403386A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445812A (en) * 1965-10-18 1969-05-20 Northern Electric Co Sequence control system and method
US3544989A (en) * 1967-02-20 1970-12-01 William T Maccreadie Judging system for competitive swimming activities
US3593288A (en) * 1968-08-02 1971-07-13 Lanier Electronic Lab Inc Voice dictation-transcription station
US3597737A (en) * 1968-06-21 1971-08-03 Susquehanna Corp Interlocking switch arrangement
US3916380A (en) * 1974-11-06 1975-10-28 Nasa Multi-computer multiple data path hardware exchange system
US3974401A (en) * 1973-01-10 1976-08-10 Iwasaki Tsushinki Kabushiki Kaisha System for detecting the transmission direction of a signal on a two-way transmission line
US3983331A (en) * 1973-09-20 1976-09-28 Compagnie Industrielle Des Telecommunications Cit-Alcatel Switch having a matrix of relays

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542672A (en) * 1948-10-27 1951-02-20 Bell Telephone Labor Inc Coordinate selecting and lockout circuit
US2562100A (en) * 1948-11-17 1951-07-24 Bell Telephone Labor Inc Coordinate selecting and lock-out circuit
US2578701A (en) * 1949-09-15 1951-12-18 Bell Telephone Labor Inc Coordinate selecting and lockout circuit
US2594389A (en) * 1948-08-04 1952-04-29 Bell Telephone Labor Inc Double-lockout interconnecting system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594389A (en) * 1948-08-04 1952-04-29 Bell Telephone Labor Inc Double-lockout interconnecting system
US2542672A (en) * 1948-10-27 1951-02-20 Bell Telephone Labor Inc Coordinate selecting and lockout circuit
US2562100A (en) * 1948-11-17 1951-07-24 Bell Telephone Labor Inc Coordinate selecting and lock-out circuit
US2578701A (en) * 1949-09-15 1951-12-18 Bell Telephone Labor Inc Coordinate selecting and lockout circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445812A (en) * 1965-10-18 1969-05-20 Northern Electric Co Sequence control system and method
US3544989A (en) * 1967-02-20 1970-12-01 William T Maccreadie Judging system for competitive swimming activities
US3597737A (en) * 1968-06-21 1971-08-03 Susquehanna Corp Interlocking switch arrangement
US3593288A (en) * 1968-08-02 1971-07-13 Lanier Electronic Lab Inc Voice dictation-transcription station
US3974401A (en) * 1973-01-10 1976-08-10 Iwasaki Tsushinki Kabushiki Kaisha System for detecting the transmission direction of a signal on a two-way transmission line
US3983331A (en) * 1973-09-20 1976-09-28 Compagnie Industrielle Des Telecommunications Cit-Alcatel Switch having a matrix of relays
US3916380A (en) * 1974-11-06 1975-10-28 Nasa Multi-computer multiple data path hardware exchange system

Also Published As

Publication number Publication date
CH424871A (de) 1966-11-30
BE661797A (xx) 1965-09-30
NL6403386A (xx) 1965-10-01
GB1090651A (en) 1967-11-15

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