GB1116404A - Improvements in or relating to change over switches - Google Patents

Improvements in or relating to change over switches

Info

Publication number
GB1116404A
GB1116404A GB5118064A GB5118064A GB1116404A GB 1116404 A GB1116404 A GB 1116404A GB 5118064 A GB5118064 A GB 5118064A GB 5118064 A GB5118064 A GB 5118064A GB 1116404 A GB1116404 A GB 1116404A
Authority
GB
United Kingdom
Prior art keywords
contacts
wire
bridged
disc
positions
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
GB5118064A
Inventor
Alfred Arthur Fearn
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB5118064A priority Critical patent/GB1116404A/en
Publication of GB1116404A publication Critical patent/GB1116404A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Toys (AREA)

Abstract

1,116,404. Inert switches. SMITHS INDUSTRIES Ltd. 10 Dec., 1965 [16 Dec., 1964], No. 51180/64. Heading H1N. A double pole changeover switch comprises four contacts 8, 9, 10, 11 on a printed circuit board 2 and a pair of wire bridges 6, 13 on a rotary insulating disc. In the position shown contacts 8, 9 are bridged by wire 6 and contacts 10, 11 are bridged by wire 13. In the other extreme position contacts 8, 11 are bridged by wire 13 and contacts 9, 10 are bridged by wire 6. The disc is retained in one of these two positions by tightening the screw on which it is mounted. The positions are determined by the co-operation of projections on the disc with lugs 5, of a bracket into which the screw is threaded. The switch is incorporated in a car radio the contacts 8, 10 being connected to the supply leads, contact 11 being connected to the unearthed terminal of the battery and contact 9 being connected to earth. The switch is set in one of its positions according to whether the car has positive or negative earth.
GB5118064A 1964-12-16 1964-12-16 Improvements in or relating to change over switches Expired GB1116404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5118064A GB1116404A (en) 1964-12-16 1964-12-16 Improvements in or relating to change over switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5118064A GB1116404A (en) 1964-12-16 1964-12-16 Improvements in or relating to change over switches

Publications (1)

Publication Number Publication Date
GB1116404A true GB1116404A (en) 1968-06-06

Family

ID=10458969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5118064A Expired GB1116404A (en) 1964-12-16 1964-12-16 Improvements in or relating to change over switches

Country Status (1)

Country Link
GB (1) GB1116404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172970A (en) * 1977-02-16 1979-10-30 Ebauches S.A. Electric switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172970A (en) * 1977-02-16 1979-10-30 Ebauches S.A. Electric switch

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