GB237683A - Improvements in variable electrical resistance devices - Google Patents

Improvements in variable electrical resistance devices

Info

Publication number
GB237683A
GB237683A GB1314624A GB1314624A GB237683A GB 237683 A GB237683 A GB 237683A GB 1314624 A GB1314624 A GB 1314624A GB 1314624 A GB1314624 A GB 1314624A GB 237683 A GB237683 A GB 237683A
Authority
GB
United Kingdom
Prior art keywords
resistance
filament
switch
drum
blade
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
GB1314624A
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.)
LAURENCE HENRY THOMAS HOLDEN
RADIO ENGINEERING Co Ltd
Original Assignee
LAURENCE HENRY THOMAS HOLDEN
RADIO ENGINEERING 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 LAURENCE HENRY THOMAS HOLDEN, RADIO ENGINEERING Co Ltd filed Critical LAURENCE HENRY THOMAS HOLDEN
Priority to GB1314624A priority Critical patent/GB237683A/en
Publication of GB237683A publication Critical patent/GB237683A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/24—Adjustable resistors the contact moving along turns of a helical resistive element, or vica versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)

Abstract

237,683. Hale, G. W., Holden, L. H. T., and Radio Engineering Co., Ltd. May 28, 1924. Receiving sets, construction of.-A. switch may be mounted on the frame a of a filament resistance in which a drum e carrying the resistance wire d is mounted for independent rotary and axial sliding movements relatively to a stationary contact k by suitable operation of a handle f for use with bright-filament and dull-emitter valves respectively. One blade of the switch carries an insulating button co-operating with the drum c to hold the blade against a second contact blade and the switch is opened by separation of the blades when the drum is moved to its rear-most position. The rheostat may then be used to control the filament current of a detector valve and the switch to control the filament circuits of the other valves, these circuits being completed only when the resistance d is in circuit. A valve holder comprising an insulating plate l, and sockets u may be mounted on the frame a of a resistance of this kind, one socket being continuously in electric connection with the contact k of the resistance and terminals x, v for the filament battery being connected respectively to another socket and to the end of the resistance wire d through the operating rod g.
GB1314624A 1924-05-28 1924-05-28 Improvements in variable electrical resistance devices Expired GB237683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1314624A GB237683A (en) 1924-05-28 1924-05-28 Improvements in variable electrical resistance devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1314624A GB237683A (en) 1924-05-28 1924-05-28 Improvements in variable electrical resistance devices

Publications (1)

Publication Number Publication Date
GB237683A true GB237683A (en) 1925-08-06

Family

ID=10017688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314624A Expired GB237683A (en) 1924-05-28 1924-05-28 Improvements in variable electrical resistance devices

Country Status (1)

Country Link
GB (1) GB237683A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147286B (en) * 1956-03-05 1963-04-18 C A Weidmueller K G Terminal block with switching element sunk into the terminal housing between the terminal connections
US3193785A (en) * 1961-09-20 1965-07-06 Sperry Rand Corp Electrical contact
CN116190028A (en) * 2023-04-28 2023-05-30 成都小卜科技有限公司 Stepless regulation slide rheostat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147286B (en) * 1956-03-05 1963-04-18 C A Weidmueller K G Terminal block with switching element sunk into the terminal housing between the terminal connections
US3193785A (en) * 1961-09-20 1965-07-06 Sperry Rand Corp Electrical contact
CN116190028A (en) * 2023-04-28 2023-05-30 成都小卜科技有限公司 Stepless regulation slide rheostat
CN116190028B (en) * 2023-04-28 2023-06-30 成都小卜科技有限公司 Stepless regulation slide rheostat

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