GB1251724A - - Google Patents

Info

Publication number
GB1251724A
GB1251724A GB1251724DA GB1251724A GB 1251724 A GB1251724 A GB 1251724A GB 1251724D A GB1251724D A GB 1251724DA GB 1251724 A GB1251724 A GB 1251724A
Authority
GB
United Kingdom
Prior art keywords
plate
contacts
switches
layer contacts
switch
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
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 filed Critical
Publication of GB1251724A publication Critical patent/GB1251724A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/72—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position

Landscapes

  • Push-Button Switches (AREA)

Abstract

1,251,724. Mechanical switches. SIEMENS A.G. 12 March, 1969 [12 March, 1968], No. 13119/69. Heading H1N. A switch comprises an insulating flat plate 5 provided on one face with two separate layer contacts, one of which, 14, Fig. 3 (not shown) is connected to a terminal 18, and a resiliently biased bridging contact 4 moved towards and away from the face to bridge the layer contacts by an operating member 1. As shown, the operating member 1 is a push-button and bridging contact 4 is resiliently biased by spring 3. Plate 5 is common to all the switches in the assembly and the operating members are guided by apertures 7, Fig. 3 (not shown) in the plate, the layer contacts 13, 14, Fig. 3 coming to the edge of the apertures. All the contacts 13 on the plate are connected together. The plate and contacts 13, 14 is a printed circuit board. Switch 9 operates a mains switch 10 and when the pushbuttons are depressed they are held in position by a locking mechanism (not described) and are released by depressing push-button 11 which acts through a member 12. The switches are mounted in a frame 6, Fig. 2 (not shown).
GB1251724D 1968-03-12 1969-03-12 Expired GB1251724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0064315 1968-03-12

Publications (1)

Publication Number Publication Date
GB1251724A true GB1251724A (en) 1971-10-27

Family

ID=7497087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251724D Expired GB1251724A (en) 1968-03-12 1969-03-12

Country Status (2)

Country Link
DE (1) DE1990413U (en)
GB (1) GB1251724A (en)

Also Published As

Publication number Publication date
DE1990413U (en) 1968-08-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees