GB1184590A - Improvements in or relating to Vacuum Electric Switches. - Google Patents

Improvements in or relating to Vacuum Electric Switches.

Info

Publication number
GB1184590A
GB1184590A GB5436867A GB5436867A GB1184590A GB 1184590 A GB1184590 A GB 1184590A GB 5436867 A GB5436867 A GB 5436867A GB 5436867 A GB5436867 A GB 5436867A GB 1184590 A GB1184590 A GB 1184590A
Authority
GB
United Kingdom
Prior art keywords
flanges
envelope
parts
nov
joined
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
GB5436867A
Inventor
John Heywood Ludlow
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB5436867A priority Critical patent/GB1184590A/en
Publication of GB1184590A publication Critical patent/GB1184590A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66276—Details relating to the mounting of screens in vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66292—Details relating to the use of multiple screens in vacuum switches

Landscapes

  • Manufacture Of Switches (AREA)

Abstract

1,184,590. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 20 Nov., 1968 [29 Nov., 1967], No. 54368/67. Heading H1N. A tubular shield which surrounds the contacts of a vacuum switch has an outwardly extending central flange gripped between flanges of two envelope parts which are joined at their flanges. As shown, the shield 35 is formed of two identical parts 35A, 35B welded together at flanges 37 and retained with the flanges 37 gripped between the welded together flanges 7A and 9A of annular members 7 and 9 joined to respective glass envelope parts 3 and 5. The envelope is closed by end plates 15, 21 on which the fixed and movable contacts 25, 27 are mounted, the former being mounted on a support 17 provided with holes 33 for evacuation of the envelope during manufacture. In Fig. 2 (not shown), the flanges 37 are shaped to fit the contours of the envelope flanges so as to provide additional space in the envelope near the contact making surfaces which have a larger area than those of the Fig. I arrangement.
GB5436867A 1967-11-29 1967-11-29 Improvements in or relating to Vacuum Electric Switches. Expired GB1184590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5436867A GB1184590A (en) 1967-11-29 1967-11-29 Improvements in or relating to Vacuum Electric Switches.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5436867A GB1184590A (en) 1967-11-29 1967-11-29 Improvements in or relating to Vacuum Electric Switches.

Publications (1)

Publication Number Publication Date
GB1184590A true GB1184590A (en) 1970-03-18

Family

ID=10470778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5436867A Expired GB1184590A (en) 1967-11-29 1967-11-29 Improvements in or relating to Vacuum Electric Switches.

Country Status (1)

Country Link
GB (1) GB1184590A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933166A (en) * 1972-07-28 1974-03-27
DE3437380A1 (en) * 1983-10-24 1985-06-27 Mitsubishi Denki K.K., Tokio/Tokyo METHOD FOR PRODUCING A VACUUM SWITCH TUBE
EP0254089A1 (en) * 1986-07-11 1988-01-27 Siemens Aktiengesellschaft Vacuum switch tube
EP0335114A2 (en) * 1988-03-03 1989-10-04 Calor-Emag Elektrizitäts-Aktiengesellschaft Housing for a vacuum switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4933166A (en) * 1972-07-28 1974-03-27
DE3437380A1 (en) * 1983-10-24 1985-06-27 Mitsubishi Denki K.K., Tokio/Tokyo METHOD FOR PRODUCING A VACUUM SWITCH TUBE
EP0254089A1 (en) * 1986-07-11 1988-01-27 Siemens Aktiengesellschaft Vacuum switch tube
EP0335114A2 (en) * 1988-03-03 1989-10-04 Calor-Emag Elektrizitäts-Aktiengesellschaft Housing for a vacuum switch
EP0335114A3 (en) * 1988-03-03 1990-12-12 Calor-Emag Elektrizitats-Aktiengesellschaft Housing for a vacuum switch

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Legal Events

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