GB222008A - Improved electric furnace - Google Patents

Improved electric furnace

Info

Publication number
GB222008A
GB222008A GB3139223A GB3139223A GB222008A GB 222008 A GB222008 A GB 222008A GB 3139223 A GB3139223 A GB 3139223A GB 3139223 A GB3139223 A GB 3139223A GB 222008 A GB222008 A GB 222008A
Authority
GB
United Kingdom
Prior art keywords
graphite
furnace
terminals
breeze
charcoal
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
GB3139223A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3139223A priority Critical patent/GB222008A/en
Publication of GB222008A publication Critical patent/GB222008A/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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/62—Heating elements specially adapted for furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

222,008. Kalling, B. M. S. Dec. 13, 1923. Resistance girds.-The heating element of an electric furnace is in the form of a cylinder split longitudinally alternately from opposite ends and is connected at two diametrically opposite points so that the current in two parallel zig-zag paths. The element is enclosed in a chamber of carboniferous material and the carbon or graphite terminals connecting the element to the external terminals pass through pipes of refractory material. The furnace is insulated by a loose powdery material such as charcoal breeze. The cylinder a, Figs. 1 - - 3, is split as at b and has projections c, d, e, f upon which it rests, the projections c, d bearing on pads h, k in contact with carbon rods l which pass to terminals m. The rods are enclosed in tubes 0 of graphite. The element a is placed in the graphite hearth n of the furnace g, the hearth being supported on the tubes o which hest on a foundation plate p. Charcoal breeze q is used for insulation.
GB3139223A 1923-12-13 1923-12-13 Improved electric furnace Expired GB222008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3139223A GB222008A (en) 1923-12-13 1923-12-13 Improved electric furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3139223A GB222008A (en) 1923-12-13 1923-12-13 Improved electric furnace

Publications (1)

Publication Number Publication Date
GB222008A true GB222008A (en) 1924-09-25

Family

ID=10322407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3139223A Expired GB222008A (en) 1923-12-13 1923-12-13 Improved electric furnace

Country Status (1)

Country Link
GB (1) GB222008A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385060A1 (en) * 1977-03-24 1978-10-20 Autoclave Eng Inc AUTOCLAVE OVEN
US4410796A (en) * 1981-11-19 1983-10-18 Ultra Carbon Corporation Segmented heater assembly
US4549345A (en) * 1981-11-19 1985-10-29 Wilsey Harvey J Method of making a graphite zig-zag picket heater
US4755658A (en) * 1985-11-12 1988-07-05 Ultra Carbon Corporation Segmented heater system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385060A1 (en) * 1977-03-24 1978-10-20 Autoclave Eng Inc AUTOCLAVE OVEN
US4410796A (en) * 1981-11-19 1983-10-18 Ultra Carbon Corporation Segmented heater assembly
US4549345A (en) * 1981-11-19 1985-10-29 Wilsey Harvey J Method of making a graphite zig-zag picket heater
US4755658A (en) * 1985-11-12 1988-07-05 Ultra Carbon Corporation Segmented heater system

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