GB493892A - Improvements in or relating to electric induction furnaces - Google Patents

Improvements in or relating to electric induction furnaces

Info

Publication number
GB493892A
GB493892A GB2316037A GB2316037A GB493892A GB 493892 A GB493892 A GB 493892A GB 2316037 A GB2316037 A GB 2316037A GB 2316037 A GB2316037 A GB 2316037A GB 493892 A GB493892 A GB 493892A
Authority
GB
United Kingdom
Prior art keywords
electric induction
induction furnaces
charge
terminal
referred
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
GB2316037A
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.)
Swift Levick Magnets Ltd
Original Assignee
Swift Levick and Sons 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 Swift Levick and Sons Ltd filed Critical Swift Levick and Sons Ltd
Priority to GB2316037A priority Critical patent/GB493892A/en
Publication of GB493892A publication Critical patent/GB493892A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces
    • H05B6/28—Protective systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Furnace Details (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

493,892. Electric induction furnaces. HORSBURGH, G. D. L., TETLEY, F. W., and SWIFT, LEVICK, & SONS, Ltd. Aug. 24, 1937, No. 23160. Drawings to Specification. [Class 39 (iii)] A protective circuit which will be closed by molten metal if a fracture occurs in the crucible is arranged between the inductor coil or a screen arranged between the coil and the charge, and a terminal of a metallic order of electrical conductivity separated from the charge by a layer of refractory material which will become electrically conductive when hot. This terminal may be connected to earth. The protective circuit includes electrical responsive means adapted to close a circuit including a lamp and a main circuit breaker. U.S.A. Specification 1,922,029 is referred to. British Specifications 342,699 and 343,601 also are referred to.
GB2316037A 1937-08-24 1937-08-24 Improvements in or relating to electric induction furnaces Expired GB493892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2316037A GB493892A (en) 1937-08-24 1937-08-24 Improvements in or relating to electric induction furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2316037A GB493892A (en) 1937-08-24 1937-08-24 Improvements in or relating to electric induction furnaces

Publications (1)

Publication Number Publication Date
GB493892A true GB493892A (en) 1938-10-17

Family

ID=10191127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2316037A Expired GB493892A (en) 1937-08-24 1937-08-24 Improvements in or relating to electric induction furnaces

Country Status (1)

Country Link
GB (1) GB493892A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199930B (en) * 1962-10-11 1965-09-02 Bbc Brown Boveri & Cie Device for signaling emerging crucible breakthroughs
EP0103394A1 (en) * 1982-08-06 1984-03-21 Daniel Scott Smalley Methods of investigating ground faults particularly on induction furnaces
EP0152849A2 (en) * 1984-02-06 1985-08-28 Asea Ab Casting ladle or tundish
EP0160384A1 (en) * 1984-04-07 1985-11-06 Foseco Trading A.G. Induction furnaces
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
DE4322463A1 (en) * 1993-07-06 1995-01-12 Leybold Durferrit Gmbh Early-warning device for induction melting furnaces
DE102013002797A1 (en) * 2012-11-09 2014-05-15 Abp Induction Systems Gmbh Method and device for automatically detecting the integrity of earthing electrodes in the bath of an induction furnace and induction furnace

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199930B (en) * 1962-10-11 1965-09-02 Bbc Brown Boveri & Cie Device for signaling emerging crucible breakthroughs
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
EP0103394A1 (en) * 1982-08-06 1984-03-21 Daniel Scott Smalley Methods of investigating ground faults particularly on induction furnaces
US4525665A (en) * 1982-08-06 1985-06-25 Smalley Daniel S Induction furnace monitor
AU571444B2 (en) * 1982-08-06 1988-04-21 Smalley, D.S. Induction furnace monitor
EP0152849A2 (en) * 1984-02-06 1985-08-28 Asea Ab Casting ladle or tundish
EP0152849A3 (en) * 1984-02-06 1985-10-09 Asea Ab Casting ladle or tundish
EP0160384A1 (en) * 1984-04-07 1985-11-06 Foseco Trading A.G. Induction furnaces
DE4322463A1 (en) * 1993-07-06 1995-01-12 Leybold Durferrit Gmbh Early-warning device for induction melting furnaces
DE102013002797A1 (en) * 2012-11-09 2014-05-15 Abp Induction Systems Gmbh Method and device for automatically detecting the integrity of earthing electrodes in the bath of an induction furnace and induction furnace
DE102013002795A1 (en) 2012-11-09 2014-05-15 Abp Induction Systems Gmbh Method and device for ground fault localization in an induction furnace and induction furnace
DE102013002797B4 (en) * 2012-11-09 2015-06-25 Abp Induction Systems Gmbh Method and device for automatically detecting the integrity of earthing electrodes in the bath of an induction furnace and induction furnace
DE102013002795B4 (en) 2012-11-09 2016-07-07 Abp Induction Systems Gmbh Method and device for ground fault detection in an induction furnace and induction furnace
DE102013002795C5 (en) 2012-11-09 2018-07-19 Abp Induction Systems Gmbh Method and device for ground fault detection in an induction furnace and induction furnace

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