GB607921A - Airtight inductor and transformer - Google Patents

Airtight inductor and transformer

Info

Publication number
GB607921A
GB607921A GB740146A GB740146A GB607921A GB 607921 A GB607921 A GB 607921A GB 740146 A GB740146 A GB 740146A GB 740146 A GB740146 A GB 740146A GB 607921 A GB607921 A GB 607921A
Authority
GB
United Kingdom
Prior art keywords
coil
insulating
inductances
wires
moulded
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
GB740146A
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.)
RUDOLPH CONRAD DE HOLZER
Original Assignee
RUDOLPH CONRAD DE HOLZER
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 RUDOLPH CONRAD DE HOLZER filed Critical RUDOLPH CONRAD DE HOLZER
Priority to GB740146A priority Critical patent/GB607921A/en
Publication of GB607921A publication Critical patent/GB607921A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01Frequency selective two-port networks
    • H03H7/0153Electrical filters; Controlling thereof
    • H03H7/0161Bandpass filters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulating Of Coils (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

607,921. Inductances and transformers. HOLZER, R. C. DE. March 9, 1946, No. 7401. [Class 38 (ii)] An inductor comprises a coil having a magnetic core, enclosed in a casing formed of two sections of insulating material hermetically sealed together by cementing, welding or spinning a metal ring round the adjacent edges. A coil 3 or an insulating bush 2 surrounding an iron dust core 1 is hermetically sealed within a casing formed by two insulating parts 4, 5 held together at the edges by the spun metal ring 8, by cement, or by welding. The parts 4, 5 may be of thermoplastic material such as polystyrene, polythene or glass, or of thermosetting plastic material and may be pressed or moulded. Terminal wires 9, 10 with their inner ends moulded in a block of insulating material and connected to the winding as at 12, pass through suitably packed grooves in the end flanges. Rings of magnetic material may be placed at the sides of the coil. In the modification of Fig. 3, the casing comprises a flat disc 15 and a moulded part 16 containing the eccentrically arranged coil, and the spun ring 17 has an extension 18 containing an insulating disc 19 with an eccentric magnetic insertion 20. Rotation of disc 19 varies the value of the inductance. Two or more inductances may be supported by their wire terminals 9, 10 to form a transformer with coupling varied by rotating the inductances on the wires or by bending the wires.
GB740146A 1946-03-09 1946-03-09 Airtight inductor and transformer Expired GB607921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB740146A GB607921A (en) 1946-03-09 1946-03-09 Airtight inductor and transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB740146A GB607921A (en) 1946-03-09 1946-03-09 Airtight inductor and transformer

Publications (1)

Publication Number Publication Date
GB607921A true GB607921A (en) 1948-09-07

Family

ID=9832405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB740146A Expired GB607921A (en) 1946-03-09 1946-03-09 Airtight inductor and transformer

Country Status (1)

Country Link
GB (1) GB607921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106680561A (en) * 2016-11-18 2017-05-17 国家电网公司 Dual-gas chamber direct-current voltage divider

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106680561A (en) * 2016-11-18 2017-05-17 国家电网公司 Dual-gas chamber direct-current voltage divider

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