GB361967A - Improvements in or relating to electrical resistances - Google Patents

Improvements in or relating to electrical resistances

Info

Publication number
GB361967A
GB361967A GB2576830A GB2576830A GB361967A GB 361967 A GB361967 A GB 361967A GB 2576830 A GB2576830 A GB 2576830A GB 2576830 A GB2576830 A GB 2576830A GB 361967 A GB361967 A GB 361967A
Authority
GB
United Kingdom
Prior art keywords
film
strip
resistance
class
cut
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
GB2576830A
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.)
MICROFUSES Ltd
Original Assignee
MICROFUSES 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 MICROFUSES Ltd filed Critical MICROFUSES Ltd
Priority to GB2576830A priority Critical patent/GB361967A/en
Publication of GB361967A publication Critical patent/GB361967A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
    • H01C17/245—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by mechanical means, e.g. sand blasting, cutting, ultrasonic treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/22—Elongated resistive element being bent or curved, e.g. sinusoidal, helical

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Adjustable Resistors (AREA)

Abstract

361,967. Regulating switches. NEWMAN, E. M., BARKLIE, C. D., and MICROFUSES, Ltd., 36, Clerkenwell Road, London. Aug. 28, 1930, No. 25768. Drawings to Specification. [Class 38 (v).] A variable electric resistance is formed of a film of beaten or electrolytically deposited gold or gold alloy on a nonconducting backing, said film being cut in the form of a flat spiral or helix and a strip of soft conductive material such as lead being secured, prior to cutting, on the foil transverse to the cuts, and cut with the film of resistance material. Contact with the sections of the strip which form tappings in the resistance is made by a slider on the lead strip. Specifications 265,263 and 305,243, [both in Class 41, Electrolysis], are referred to.
GB2576830A 1930-08-28 1930-08-28 Improvements in or relating to electrical resistances Expired GB361967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2576830A GB361967A (en) 1930-08-28 1930-08-28 Improvements in or relating to electrical resistances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2576830A GB361967A (en) 1930-08-28 1930-08-28 Improvements in or relating to electrical resistances

Publications (1)

Publication Number Publication Date
GB361967A true GB361967A (en) 1931-11-30

Family

ID=10232979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2576830A Expired GB361967A (en) 1930-08-28 1930-08-28 Improvements in or relating to electrical resistances

Country Status (1)

Country Link
GB (1) GB361967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446998A (en) * 1967-02-17 1969-05-27 Nasa Bimetallic power controlled actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446998A (en) * 1967-02-17 1969-05-27 Nasa Bimetallic power controlled actuator

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