GB657807A - Improvements in or relating to electric circuit interrupting devices - Google Patents

Improvements in or relating to electric circuit interrupting devices

Info

Publication number
GB657807A
GB657807A GB6736/49A GB673649A GB657807A GB 657807 A GB657807 A GB 657807A GB 6736/49 A GB6736/49 A GB 6736/49A GB 673649 A GB673649 A GB 673649A GB 657807 A GB657807 A GB 657807A
Authority
GB
United Kingdom
Prior art keywords
casing
sheets
relating
sheet
electric circuit
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
GB6736/49A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB657807A publication Critical patent/GB657807A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/042—Explosion-proof cases
    • H01H9/046—Explosion-proof cases with internal explosion inhibiting means

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

657,807. Switch cases. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 11, 1949, No. 6736. Convention date, April 23, 1948. Drawings to Specification. [Class 38(v)] In an electric switch such as an electromagnetic interrupter or ignition distributer in which arc discharges at the contacts produce corrosive nitrogen compounds, an oxidizing agent is provided within the casing to remove these compounds from the air within the casing. The agent is potassium permanganate, silver permanganate or a mixture thereof and may be encased in a porous container such as a tube of wire mesh. Alternatively a sheet or sheets of asbestos, glass fibre, felt or other porous material may be impregnated with the oxidizing agent, the sheet or sheets being secured to the inside of the casing by screws. Specification 592,623 is referred to.
GB6736/49A 1948-04-23 1949-03-11 Improvements in or relating to electric circuit interrupting devices Expired GB657807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22868A US2558076A (en) 1948-04-23 1948-04-23 Noncorroding arcing circuit interrupting device

Publications (1)

Publication Number Publication Date
GB657807A true GB657807A (en) 1951-09-26

Family

ID=21811859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6736/49A Expired GB657807A (en) 1948-04-23 1949-03-11 Improvements in or relating to electric circuit interrupting devices

Country Status (2)

Country Link
US (1) US2558076A (en)
GB (1) GB657807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111706B (en) * 1958-07-07 1961-07-27 Elektro App Werke J W Stalin V Electric relay or electric switch in encapsulated design

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124671A (en) * 1964-03-10 Jgjtg
US2673902A (en) * 1950-02-21 1954-03-30 Ite Circuit Breaker Ltd Disconnect switch
US2943169A (en) * 1957-10-07 1960-06-28 Gen Motors Corp Regulator
US3196483A (en) * 1962-03-05 1965-07-27 Foster Grant Co Inc Molding device
US4177365A (en) * 1976-12-28 1979-12-04 Blackman Stanley J Moisture reducer for use in heated and vented container including electrical contacts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE312002C (en) *
US1421271A (en) * 1919-04-21 1922-06-27 Claude P Mcneil Coated granules
US1716479A (en) * 1927-02-09 1929-06-11 Billings John Gregory Gas absorber for products of combustion
US1783784A (en) * 1929-08-22 1930-12-02 Union Switch & Signal Co Instrument inclosed in nonmetallic housings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1111706B (en) * 1958-07-07 1961-07-27 Elektro App Werke J W Stalin V Electric relay or electric switch in encapsulated design

Also Published As

Publication number Publication date
US2558076A (en) 1951-06-26

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