GB225608A - Improvements in resistors for electric heating - Google Patents

Improvements in resistors for electric heating

Info

Publication number
GB225608A
GB225608A GB2202423A GB2202423A GB225608A GB 225608 A GB225608 A GB 225608A GB 2202423 A GB2202423 A GB 2202423A GB 2202423 A GB2202423 A GB 2202423A GB 225608 A GB225608 A GB 225608A
Authority
GB
United Kingdom
Prior art keywords
clay
layer
conducting
resistor
conductor
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
GB2202423A
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.)
Morgan Crucible Co PLC
Original Assignee
Morgan Crucible Co PLC
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 Morgan Crucible Co PLC filed Critical Morgan Crucible Co PLC
Priority to GB2202423A priority Critical patent/GB225608A/en
Publication of GB225608A publication Critical patent/GB225608A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

225,608. Morgan Crucible Co., Ltd., and Spiers, C. W. Aug. 31, 1923. Resistanee grids; resistance materials.-A resistor for electric heating comprises a solid, coherent ceramic body in which the conducting portion is obtained by the addition of powdered carbon, the conducting portion being entirely surrounded by ceramic material. In the form shown in Fig. 3, a conducting layer which may be formed by mixing flaked graphite with clay is placed upon a thin layer of clay, and interrupted concentric grooves c are made in the conducting layer to form a circuit. The grooves having been filled with clay, a layer of clay is then placed upon the conductor and the whole firmly pressed together. Circular conducting blocks f are worked on to the extreme ends of the conducting circuit and metal terminals g screwed into holes drilled therein. The edge of the element is covered with a layer e of clay. When the resistor is intended for high temperatures, the terminals, which may be water-cooled or provided with gills, are mounted upon graphite rods g', Fig. 5, screwed into raised portions f<1> worked upon the conductor. The portions f<1> have a higher conductivity than the latter, and the rods g<1> are protected by a glazed insulating tube h. The conductor may be made up in layers, each layer being separated from the next by an insulating layer of clay. A clay vessel may be moulded on or around the resistor.
GB2202423A 1923-08-31 1923-08-31 Improvements in resistors for electric heating Expired GB225608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2202423A GB225608A (en) 1923-08-31 1923-08-31 Improvements in resistors for electric heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2202423A GB225608A (en) 1923-08-31 1923-08-31 Improvements in resistors for electric heating

Publications (1)

Publication Number Publication Date
GB225608A true GB225608A (en) 1924-12-01

Family

ID=10172663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2202423A Expired GB225608A (en) 1923-08-31 1923-08-31 Improvements in resistors for electric heating

Country Status (1)

Country Link
GB (1) GB225608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004443A1 (en) * 1993-07-30 1995-02-09 Bach, Wolfdietrich Ceramic heating element and process for producing such a heating element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004443A1 (en) * 1993-07-30 1995-02-09 Bach, Wolfdietrich Ceramic heating element and process for producing such a heating element

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