GB215725A - Improvements relating to electrical resistors and to the manufacture of the same - Google Patents

Improvements relating to electrical resistors and to the manufacture of the same

Info

Publication number
GB215725A
GB215725A GB8781/24A GB878124A GB215725A GB 215725 A GB215725 A GB 215725A GB 8781/24 A GB8781/24 A GB 8781/24A GB 878124 A GB878124 A GB 878124A GB 215725 A GB215725 A GB 215725A
Authority
GB
United Kingdom
Prior art keywords
cellulose
render
resistor
extruding
compound
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
GB8781/24A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB215725A publication Critical patent/GB215725A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)

Abstract

215,725. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of O'Brien, B.). May 7, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Resistance materials.-An electric resistance material is formed by incorporating a finely powdered conducting material with a compound of cellulose, adding a substance to render it plastic and finally moulding or extruding it. Nitrate or acetate of cellulose is mixed with lamp black, moistened with a solvent such as acetone and moulded or extruded; or the cellulose compound may be dissolved in an aqueous solution of zinc chloride and extruded under a liquid such as methyl alcohol. The final material may be rendered plastic b placing it in boiling water. In order to stabilize the resistor the material is aged in air for from 20 to 60 days. High temperature and the employment of a vacuum hasten this action. An oil such as castor oil may be added to facilitate extruding the material and render the final resistor more flexible.
GB8781/24A 1923-05-07 1924-04-07 Improvements relating to electrical resistors and to the manufacture of the same Expired GB215725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US215725XA 1923-05-07 1923-05-07

Publications (1)

Publication Number Publication Date
GB215725A true GB215725A (en) 1925-07-31

Family

ID=21804977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8781/24A Expired GB215725A (en) 1923-05-07 1924-04-07 Improvements relating to electrical resistors and to the manufacture of the same

Country Status (1)

Country Link
GB (1) GB215725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6124139A (en) * 1993-05-17 2000-09-26 Fujirebio Inc. Method and apparatus for indirect agglutination immunoassay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6124139A (en) * 1993-05-17 2000-09-26 Fujirebio Inc. Method and apparatus for indirect agglutination immunoassay

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