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
GB30771/50A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson ABfiledCriticalTelefonaktiebolaget LM Ericsson AB
Publication of GB680083ApublicationCriticalpatent/GB680083A/en
H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
Landscapes
Breakers
(AREA)
Adjustable Resistors
(AREA)
Manufacture Of Switches
(AREA)
Abstract
680,083. Electroniagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON Dec. 18, 1950 [Dec. 21,1949], No. 30771/50. Class 38 (v) [Also in Group XXXIX]. In relay selectors or cross bar switches wherein a lifting bar 2 carried by an armature 1 co-operates with a series of selectivelyoperated 'indicating' wires 5 so that operation of the armature operates the wires 5 and the selected wires 5 then operate lifting springs 3 associated with contact spring groups, the bar 2 is made by bending a thin sheet of material, the line of the bend forming the operative edge of the bar. Fig. 2d shows one form wherein the sheet is bent into U shape and spacing discs 11 are arranged at intervals.
Contact spring groups for electromagnetic connecting devices for obtaining a variation of the chronological order for the contact functions of the group