GB268840A - Improvements in resistance units - Google Patents

Improvements in resistance units

Info

Publication number
GB268840A
GB268840A GB9343/27A GB934327A GB268840A GB 268840 A GB268840 A GB 268840A GB 9343/27 A GB9343/27 A GB 9343/27A GB 934327 A GB934327 A GB 934327A GB 268840 A GB268840 A GB 268840A
Authority
GB
United Kingdom
Prior art keywords
resistance
glass
milliameter
sealed
etched
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
GB9343/27A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB268840A publication Critical patent/GB268840A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

268,840. British Thomson-Houston Co., Ltd., (Assignees of Dantsizen, C.). April 5, 1926, [Convention date]. Resistance coatings. - Grid leaks &c. are made by rubbing a carbon pencil on non-hygroscopic insulating material with a rough surface, such as etched glass. A glass rod 2 is etched with acid ammonium fluoride and wires 3, 4 are sealed to its ends, which receive conducting coatings 5, 6 of " aquadag " or the like. The rod is then supported in clips 7, 8 in series with a battery and milliameter and a pencil 9 is then rubbed on it until the milliameter reading corresponds to the desired resistance. The resistance element is then sealed into a glass tube.
GB9343/27A 1926-04-05 1927-04-05 Improvements in resistance units Expired GB268840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US268840XA 1926-04-05 1926-04-05

Publications (1)

Publication Number Publication Date
GB268840A true GB268840A (en) 1927-08-25

Family

ID=21834356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9343/27A Expired GB268840A (en) 1926-04-05 1927-04-05 Improvements in resistance units

Country Status (1)

Country Link
GB (1) GB268840A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443400A (en) * 1946-08-28 1948-06-15 Oscar A Reinhold Controlling means for adjustable back chairs
US2630887A (en) * 1946-09-11 1953-03-10 Weatherhead Co Hydraulic lock for adjustable chair backs
US2641672A (en) * 1950-05-08 1953-06-09 Northrop Aircraft Inc Electrical conductor
CN104567624A (en) * 2015-01-21 2015-04-29 江苏立万精密制管有限公司 Circular tube ellipticity measurement device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443400A (en) * 1946-08-28 1948-06-15 Oscar A Reinhold Controlling means for adjustable back chairs
US2630887A (en) * 1946-09-11 1953-03-10 Weatherhead Co Hydraulic lock for adjustable chair backs
US2641672A (en) * 1950-05-08 1953-06-09 Northrop Aircraft Inc Electrical conductor
CN104567624A (en) * 2015-01-21 2015-04-29 江苏立万精密制管有限公司 Circular tube ellipticity measurement device

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