GB167832A - Improvements in or relating to resistance switches for controlling the intensity of electric currents - Google Patents

Improvements in or relating to resistance switches for controlling the intensity of electric currents

Info

Publication number
GB167832A
GB167832A GB1327820A GB1327820A GB167832A GB 167832 A GB167832 A GB 167832A GB 1327820 A GB1327820 A GB 1327820A GB 1327820 A GB1327820 A GB 1327820A GB 167832 A GB167832 A GB 167832A
Authority
GB
United Kingdom
Prior art keywords
resistance
relating
intensity
controlling
electric currents
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
GB1327820A
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.)
NOEL CHARLES FRANCIS
Original Assignee
NOEL CHARLES FRANCIS
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 NOEL CHARLES FRANCIS filed Critical NOEL CHARLES FRANCIS
Priority to GB1327820A priority Critical patent/GB167832A/en
Publication of GB167832A publication Critical patent/GB167832A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/46—Arrangements of fixed resistors with intervening connectors, e.g. taps
    • H01C10/48—Arrangements of fixed resistors with intervening connectors, e.g. taps including contact movable in an arcuate path

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)
  • Push-Button Switches (AREA)

Abstract

167,832. Watkinson, J., Francis, N. C., and Quennell, A. E. May 13, 1920. Resistance switches.-The switch comprises an insulating-base 17, a resistance device consisting of rows of graphite or like blocks 9, a rigid frame 11 slotted to receive the resistance blocks, spaced contacts 6 electrically connected to various points of the resistance device, and a spring contact 4 mounted so as to be moved arcuately over the stationary contacts. The Specification describes a number of different constructions all conforming to the above general description. Specifications 19219/06 and 111,821 are referred to.
GB1327820A 1920-05-13 1920-05-13 Improvements in or relating to resistance switches for controlling the intensity of electric currents Expired GB167832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1327820A GB167832A (en) 1920-05-13 1920-05-13 Improvements in or relating to resistance switches for controlling the intensity of electric currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1327820A GB167832A (en) 1920-05-13 1920-05-13 Improvements in or relating to resistance switches for controlling the intensity of electric currents

Publications (1)

Publication Number Publication Date
GB167832A true GB167832A (en) 1921-08-15

Family

ID=10020049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1327820A Expired GB167832A (en) 1920-05-13 1920-05-13 Improvements in or relating to resistance switches for controlling the intensity of electric currents

Country Status (1)

Country Link
GB (1) GB167832A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023072259A1 (en) 2021-11-01 2023-05-04 中国石油化工股份有限公司 Composite material, composition, drilling fluid, and method for plugging formation well wall fractures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023072259A1 (en) 2021-11-01 2023-05-04 中国石油化工股份有限公司 Composite material, composition, drilling fluid, and method for plugging formation well wall fractures

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