GB410260A - Improvements relating to electrical heating apparatus - Google Patents

Improvements relating to electrical heating apparatus

Info

Publication number
GB410260A
GB410260A GB965/33A GB96533A GB410260A GB 410260 A GB410260 A GB 410260A GB 965/33 A GB965/33 A GB 965/33A GB 96533 A GB96533 A GB 96533A GB 410260 A GB410260 A GB 410260A
Authority
GB
United Kingdom
Prior art keywords
per cent
members
moulded
heating
alkali
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
GB965/33A
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Publication of GB410260A publication Critical patent/GB410260A/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
    • H05B3/00—Ohmic-resistance heating

Landscapes

  • Resistance Heating (AREA)

Abstract

In an electric heating-apparatus the heating members are wholly or partly insulated by moulded members made from a mass consisting of natural or artificial magnesium silicate burned to the density of porcelain by means of a flux not containing magnesium or alkali. The insulating members contain 20 per cent or more of magnesium oxide, and may be provided only at the points of maximum temperature, other insulating material such as chamotte or stoneware-like masses, mica &c. being provided at points of lower temperature. In an example insulating members are moulded from a mass containing 80 per cent of steatite or talc, 10 per cent of plastic clay and 10 per cent of kaolin, these materials being as free from alkali as possible. The moulded members may be in the form of heads or tubes which are drawn over the heating member, or they may be formed with recesses or projections to take the heating member. Specifications 21987/11, [Class 70], and 142,512, [Class 22], are referred to.
GB965/33A 1932-01-13 1933-01-11 Improvements relating to electrical heating apparatus Expired GB410260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE410260X 1932-01-13

Publications (1)

Publication Number Publication Date
GB410260A true GB410260A (en) 1934-05-17

Family

ID=6423930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB965/33A Expired GB410260A (en) 1932-01-13 1933-01-11 Improvements relating to electrical heating apparatus

Country Status (1)

Country Link
GB (1) GB410260A (en)

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