GB568980A - Improvements relating to furnaces with circulation of internal atmosphere - Google Patents

Improvements relating to furnaces with circulation of internal atmosphere

Info

Publication number
GB568980A
GB568980A GB1663843A GB1663843A GB568980A GB 568980 A GB568980 A GB 568980A GB 1663843 A GB1663843 A GB 1663843A GB 1663843 A GB1663843 A GB 1663843A GB 568980 A GB568980 A GB 568980A
Authority
GB
United Kingdom
Prior art keywords
shaft
furnaces
internal atmosphere
circulation
furnace
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
GB1663843A
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.)
G W B ELECTRIC FURNACES Ltd
Original Assignee
G W B ELECTRIC FURNACES 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 G W B ELECTRIC FURNACES Ltd filed Critical G W B ELECTRIC FURNACES Ltd
Priority to GB1663843A priority Critical patent/GB568980A/en
Publication of GB568980A publication Critical patent/GB568980A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

568,980. Dynamo-electric machines. McDONALD, J., and G.W.B. ELECTRIC FURNACES, Ltd. Oct. 11, 1943, No. 16638. [Class 35] [Also in Group XII] In a furnace having an internal atmosphere - circulating fan mounted on the end 2a of the shaft 2 of an external electric motor 1, the portion of the shaft 2 outside the furnace is hollow and cooled by water supplied through a fixed inner tube 3. In the vertical arrangement shown, the shaft 2 carries a hood 6 which deflects the outflowing water downwardly into a tank 4 having an outlet 7. A modification is described in which the shaft 2 is horizontal, the outflowing water in this case being discharged through apertures in the shaft into a surrounding annular chamber.
GB1663843A 1943-10-11 1943-10-11 Improvements relating to furnaces with circulation of internal atmosphere Expired GB568980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1663843A GB568980A (en) 1943-10-11 1943-10-11 Improvements relating to furnaces with circulation of internal atmosphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1663843A GB568980A (en) 1943-10-11 1943-10-11 Improvements relating to furnaces with circulation of internal atmosphere

Publications (1)

Publication Number Publication Date
GB568980A true GB568980A (en) 1945-04-30

Family

ID=10080915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1663843A Expired GB568980A (en) 1943-10-11 1943-10-11 Improvements relating to furnaces with circulation of internal atmosphere

Country Status (1)

Country Link
GB (1) GB568980A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022178A1 (en) * 1998-10-14 2000-04-20 Otto Junker Gmbh Top hat furnace
EP2799563A4 (en) * 2011-12-28 2015-08-05 Jfe Steel Corp Batch annealing furnace for coils

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022178A1 (en) * 1998-10-14 2000-04-20 Otto Junker Gmbh Top hat furnace
EP2799563A4 (en) * 2011-12-28 2015-08-05 Jfe Steel Corp Batch annealing furnace for coils
EP3040428A1 (en) * 2011-12-28 2016-07-06 JFE Steel Corporation Batch annealing furnace for coils
US9605331B2 (en) 2011-12-28 2017-03-28 Jfe Steel Corporation Batch annealing furnace for coils

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