GB501009A - Improvements in electrically annealing furnaces - Google Patents

Improvements in electrically annealing furnaces

Info

Publication number
GB501009A
GB501009A GB22413/37A GB2241337A GB501009A GB 501009 A GB501009 A GB 501009A GB 22413/37 A GB22413/37 A GB 22413/37A GB 2241337 A GB2241337 A GB 2241337A GB 501009 A GB501009 A GB 501009A
Authority
GB
United Kingdom
Prior art keywords
bars
heating
ceramic
resistances
casing
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
GB22413/37A
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.)
KARL MITLEHNER
Original Assignee
KARL MITLEHNER
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 KARL MITLEHNER filed Critical KARL MITLEHNER
Publication of GB501009A publication Critical patent/GB501009A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

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)
  • Furnace Details (AREA)

Abstract

501,009. Electric resistance furnaces. MITLEHNER, K. Aug. 14, 1937, No. 22413. Convention date, Dec. 29, 1936. [Class 39 (iii)] In an electric furnace with pulverulent heat insulation 10 and an inner lining consisting partly or wholly of ceramic bars 1, the heating resistances are mounted in the bars, thus avoiding the use of separate carriers for the heating coils. The ends of the hollow bars are closed by means of ceramic mouldings which prevent the dropping out of the heating coils and may be perforated to allow the heating wire to pass through. The ends of the bars passing outside the casing are secured by an angle iron 12 bolted to the outer casing 11 and engaging in a slot in the end of the bar. The heating resistances are supported on pointed projections moulded on the interior of the bars.
GB22413/37A 1936-12-29 1937-08-14 Improvements in electrically annealing furnaces Expired GB501009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS501009X 1936-12-29

Publications (1)

Publication Number Publication Date
GB501009A true GB501009A (en) 1939-02-14

Family

ID=5453199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22413/37A Expired GB501009A (en) 1936-12-29 1937-08-14 Improvements in electrically annealing furnaces

Country Status (1)

Country Link
GB (1) GB501009A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749882A (en) * 1972-04-14 1973-07-31 Ney Co J M Muffle construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749882A (en) * 1972-04-14 1973-07-31 Ney Co J M Muffle construction

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