GB1451451A - Selective electrical switching means - Google Patents

Selective electrical switching means

Info

Publication number
GB1451451A
GB1451451A GB1552473A GB1552473A GB1451451A GB 1451451 A GB1451451 A GB 1451451A GB 1552473 A GB1552473 A GB 1552473A GB 1552473 A GB1552473 A GB 1552473A GB 1451451 A GB1451451 A GB 1451451A
Authority
GB
United Kingdom
Prior art keywords
armature
conductors
118a
glass sheets
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1552473A
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.)
UNIVERSAL TELEWRITERS UK Ltd
Original Assignee
UNIVERSAL TELEWRITERS UK Ltd
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
Priority to GB5679472 priority Critical
Application filed by UNIVERSAL TELEWRITERS UK Ltd filed Critical UNIVERSAL TELEWRITERS UK Ltd
Priority to GB1552473A priority patent/GB1451451A/en
Publication of GB1451451A publication Critical patent/GB1451451A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00Electrically-operated selector switches
    • H01H67/22Switches without multi-position wipers
    • H01H67/30Co-ordinate-type selector switches with field of co-ordinate coil acting directly upon magnetic leaf spring or reed-type contact member

Abstract

1451451 Co-ordinate selectors; electromagnetic relays UNIVERSAL TELEWRITERS (UK) Ltd 7 Dec 1973 [8 Dec 1972 30 March 1973] 56794/72 Headings H1L and H1N A plurality of selectively operable switching elements are arranged in an array of rows and columns to form a co-ordinate switching matrix, each switching element comprising fixed contacts 102, 103, arranged to be contacted by an armature 111 centrally pivoted for movement between the contacts in response to selective energization of conductors 114, 115. A ferromagnetic yoke 116 comprising a plate 117 having pole members 118a, 118a', 118b, 118b' projecting towards the armature is arranged so that air-gaps are formed between the armature ends and these poles. Current passing in conductors 115 produces flux crossing the gaps between armature end 111a and poles 118a, 118a' in the same direction whilst current passing in conductors 114 produces flux crossing these two gaps in opposite directions, so that with selected currents the flux in one gap is cancelled and in the other is strengthened so that the armature is moved to contact one of the fixed contacts. Reversing one of the selected currents caused the armature to move to contact the other fixed contact. The arrangement is bi-stable. In an alternative embodiment, Fig. 4, (not shown), the conductors embrace the yoke and two armatures are provided which rotate in opposite directions when selected currents pass in both conductors. Sets of such armatures can be formed integrally with connecting bus-bars from a metal sheet, and the bus-bars can be supported on glass sheets 27, 28, Fig. 6, together with fixed contacts 54, 56. In this embodiment selected currents in conductors 22, 23 embracing yoke 21c, 21c', causes deflection of the armatures 25, (24) in a hollow 57 in one of the glass sheets 27 to which the armature bus-bar strips are attached. To make the device bi-stable the contacts 54, 56 on the other of the glass sheets 28 are associated with permanent magnets 29 to hold the armature on to the contact. The glass sheets are bonded around their periphery to form a sealed unit. In a still further embodiment, Fig. 8 (not shown), two yokes are associated with a single armature, one on either side of it, and the armature is attracted towards one or other of them according to the currents in the conductors embracing the yokes. The bi-stable feature in this case is provided by a bowed resilient strip on the armature, Fig. 9 (not shown).
GB1552473A 1972-12-08 1973-03-30 Selective electrical switching means Expired GB1451451A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5679472 1972-12-08
GB1552473A GB1451451A (en) 1972-12-08 1973-03-30 Selective electrical switching means

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1552473A GB1451451A (en) 1972-12-08 1973-03-30 Selective electrical switching means
US42030673 US3868610A (en) 1972-12-08 1973-11-29 Selective electrical switching means
DE19732360995 DE2360995A1 (en) 1972-12-08 1973-12-07 Coordinate switching device

Publications (1)

Publication Number Publication Date
GB1451451A true GB1451451A (en) 1976-10-06

Family

ID=26251355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1552473A Expired GB1451451A (en) 1972-12-08 1973-03-30 Selective electrical switching means

Country Status (3)

Country Link
US (1) US3868610A (en)
DE (1) DE2360995A1 (en)
GB (1) GB1451451A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241697A1 (en) * 2001-03-15 2002-09-18 Alcatel Micro relay device
EP1331656A1 (en) * 2002-01-23 2003-07-30 Alcatel Process for fabricating an adsl relay array

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133506A (en) * 1974-09-09 1976-03-22 Nippon Electric Co Bunkatsureijigatasuitsuchimatoritsukusu
SE468693B (en) * 1991-06-17 1993-03-01 Ericsson Telefon Ab L M Galvanic coupling device
US5790088A (en) * 1995-12-04 1998-08-04 American Electronic Sign Company Electronic display element for electronic display device
US6677922B1 (en) 1995-12-04 2004-01-13 3M Innovative Properties Company Display element having retroreflective surface
US20040249374A1 (en) * 1998-10-23 2004-12-09 Tetzlaff Philip M. Vessel sealing instrument
DE60139815D1 (en) * 2001-04-06 2009-10-15 Covidien Ag An apparatus for sealing and dividing of a vessel with a non-conductive end stop
US7033354B2 (en) 2002-12-10 2006-04-25 Sherwood Services Ag Electrosurgical electrode having a non-conductive porous ceramic coating

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471813A (en) * 1968-03-14 1969-10-07 Sylvania Electric Prod Hermaphroditic multi-contact reed switch
DE1954952B2 (en) * 1969-10-31 1971-11-18 relay blocks
US3753176A (en) * 1971-11-26 1973-08-14 Int Standard Electric Corp Switching matrice crosspoint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241697A1 (en) * 2001-03-15 2002-09-18 Alcatel Micro relay device
US6778045B2 (en) 2001-03-15 2004-08-17 Alcatel Telecommunication relay array for DSL network configuraton
EP1331656A1 (en) * 2002-01-23 2003-07-30 Alcatel Process for fabricating an adsl relay array

Also Published As

Publication number Publication date
DE2360995A1 (en) 1974-06-12
US3868610A (en) 1975-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee