GB159195A - Improvements in electrically heated muffle furnaces - Google Patents

Improvements in electrically heated muffle furnaces

Info

Publication number
GB159195A
GB159195A GB5614/21A GB561421A GB159195A GB 159195 A GB159195 A GB 159195A GB 5614/21 A GB5614/21 A GB 5614/21A GB 561421 A GB561421 A GB 561421A GB 159195 A GB159195 A GB 159195A
Authority
GB
United Kingdom
Prior art keywords
furnace
electrodes
chamber
metal
electrically heated
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
GB5614/21A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB159195A publication Critical patent/GB159195A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • 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
    • H05B7/00—Heating by electric discharge
    • H05B7/18—Heating by arc discharge
    • H05B7/22—Indirect heating by arc discharge

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Abstract

159,195. Akt.-Ges. Brown, Boveri, et Cie. Feb. 18, 1920, [Convention date]. Electrode and resistance furnaces.-A muffle a is situated within a chamber in which arcs are formed between electrodes e and a molten resistance material d. This material may be a substanqe non-conductive when cold. a metal such as iron, or an alloy; if the metal is heated to boiling point an uniform temperature can be obtained. One or more muffles a may be arranged in a single heating-chamber; they may be horizontal or inclined, and fixed or removable. Electrode holders slide on uprights c also supporting the furnace. Various numbers of electrodes may be provided, and may be fed with direct or single or polyphase alternating current. The furnace may be used for burning, melting, hardening, and annealing.
GB5614/21A 1920-02-18 1921-02-18 Improvements in electrically heated muffle furnaces Expired GB159195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH159195X 1920-02-18

Publications (1)

Publication Number Publication Date
GB159195A true GB159195A (en) 1921-05-26

Family

ID=4413043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5614/21A Expired GB159195A (en) 1920-02-18 1921-02-18 Improvements in electrically heated muffle furnaces

Country Status (1)

Country Link
GB (1) GB159195A (en)

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