GB496429A - Improvements in arc-extinguishing tubes for electric switches of the self-generatinggas blast type - Google Patents

Improvements in arc-extinguishing tubes for electric switches of the self-generatinggas blast type

Info

Publication number
GB496429A
GB496429A GB32931/37A GB3293137A GB496429A GB 496429 A GB496429 A GB 496429A GB 32931/37 A GB32931/37 A GB 32931/37A GB 3293137 A GB3293137 A GB 3293137A GB 496429 A GB496429 A GB 496429A
Authority
GB
United Kingdom
Prior art keywords
arc
self
layers
generatinggas
nov
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
GB32931/37A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB496429A publication Critical patent/GB496429A/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Laminated Bodies (AREA)
  • Lighters Containing Fuel (AREA)

Abstract

496,429. High - tension switches. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1937, No. 32931. Convention date, Nov. 30, 1936. Drawings to Specification. [Class 38 (v)] [Also in Groups VIII and XXVIII] An arc-extinguishing tube for a self-generating gas blast electric switch consists of a number of superposed wound layers of perforated vulcanized fibre united by an adhesive such as urea-aldehyde resin. The perforations may have raised edges and those in adjacent layers do not register. Specification 481,246 is referred to. The Specification as open to inspection under Sect. 91 describes also tubes made from superposed perforated layers of fibre, paper, or fabric such as silk united by resins or synthetic resins with or without fillers and softeners. This subject-matter does not appear in the Specification as accepted.
GB32931/37A 1936-06-21 1937-11-29 Improvements in arc-extinguishing tubes for electric switches of the self-generatinggas blast type Expired GB496429A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA79724D DE665327C (en) 1936-06-21 1936-06-21 Electric gas switch with arc extinguishing by compressed gas
DEA81249D DE671015C (en) 1936-06-21 1936-12-01 Switching tube for electric gas switch

Publications (1)

Publication Number Publication Date
GB496429A true GB496429A (en) 1938-11-30

Family

ID=6542641

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17047/37A Expired GB481246A (en) 1936-06-21 1937-06-18 Improvements in arc-extinguishing chambers for electric switches or circuit-breakers
GB32931/37A Expired GB496429A (en) 1936-06-21 1937-11-29 Improvements in arc-extinguishing tubes for electric switches of the self-generatinggas blast type

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB17047/37A Expired GB481246A (en) 1936-06-21 1937-06-18 Improvements in arc-extinguishing chambers for electric switches or circuit-breakers

Country Status (4)

Country Link
US (1) US2169871A (en)
DE (2) DE665327C (en)
FR (1) FR823126A (en)
GB (2) GB481246A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222743A1 (en) * 1973-03-20 1974-10-18 Bbc Brown Boveri & Cie
GB2248959A (en) * 1990-10-20 1992-04-22 Omega Electric Ltd Controlled display systems

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975766C (en) * 1953-05-01 1962-08-23 Aeg Loeschteile of electrical switches with arc extinguishing by gases and fumes
DE1151844B (en) * 1954-11-22 1963-07-25 Licentia Gmbh Process for the production of a nozzle body made of thermoplastic material and having a screen ring for pressure gas switches
DE1209182B (en) * 1960-08-30 1966-01-20 Licentia Gmbh Insulation wall for electrical apparatus or devices made of a multi-layer material, exposed to brief pressure waves
US3415963A (en) * 1964-05-15 1968-12-10 Dow Chemical Co Ethyl cellulose composition for use in arc extinguishing apparatus
DE3824025C2 (en) * 1988-07-15 1994-02-17 Asea Brown Boveri Low voltage switchgear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222743A1 (en) * 1973-03-20 1974-10-18 Bbc Brown Boveri & Cie
GB2248959A (en) * 1990-10-20 1992-04-22 Omega Electric Ltd Controlled display systems

Also Published As

Publication number Publication date
DE665327C (en) 1938-09-22
GB481246A (en) 1938-03-08
US2169871A (en) 1939-08-15
DE671015C (en) 1939-01-30
FR823126A (en) 1938-01-14

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