GB578276A - Improvements in and relating to electric apparatus and method of applying an insulating covering thereto - Google Patents

Improvements in and relating to electric apparatus and method of applying an insulating covering thereto

Info

Publication number
GB578276A
GB578276A GB9135/43A GB913543A GB578276A GB 578276 A GB578276 A GB 578276A GB 9135/43 A GB9135/43 A GB 9135/43A GB 913543 A GB913543 A GB 913543A GB 578276 A GB578276 A GB 578276A
Authority
GB
United Kingdom
Prior art keywords
latex
mould
covering
tube
cores
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
GB9135/43A
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 GB578276A publication Critical patent/GB578276A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Abstract

578,276. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. June 7, 1943, No. 9135. Convention date, June 9, 1942. [Class 38 (ii)] [Also in Group V] A transformer or other apparatus has a tubular portion 36 that is clamped to a core 20, 21 enabling it to be supported in a horizontal position from the R.H. end of the tube while a synthetic resinous covering 60 is cast round it. A cushioning layer 49 of sponge latex is preferably first moulded round the apparatus including the tube 36 or the latter may have a covering of cork. In the form shown, there are two cores 20, 21, with windings 22, 23, adapted to surround a primary conductor passing through a hole 59. The cores are clamped in position by means of a headed bolt 29, a bracket 27 and a nut 34, the bracket 27 having a tubular end which screws into the tube 36. The mould for receiving the latex maybe of aluminium with a highly polished inner surface which may be coated with a varnish such as an alkyd resin to prevent tearing of the latex coating when the mould is removed. After removal of the mould the latex covering is vulcanized. Specification 507,000 is referred to.
GB9135/43A 1942-06-09 1943-06-07 Improvements in and relating to electric apparatus and method of applying an insulating covering thereto Expired GB578276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US578276XA 1942-06-09 1942-06-09

Publications (1)

Publication Number Publication Date
GB578276A true GB578276A (en) 1946-06-21

Family

ID=22012976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9135/43A Expired GB578276A (en) 1942-06-09 1943-06-07 Improvements in and relating to electric apparatus and method of applying an insulating covering thereto

Country Status (3)

Country Link
BE (1) BE578276A (en)
FR (1) FR945459A (en)
GB (1) GB578276A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970277C (en) * 1955-01-23 1958-09-04 Vacuumschmelze Ag Method for solidifying toroidal cores, in particular toroidal tape cores, for protection against mechanical stresses
DE1055146B (en) * 1953-10-31 1959-04-16 Vacuumschmelze Ag Process for protecting objects made of magnetizable materials against mechanical deformation
DE1068395B (en) * 1959-11-05
DE976786C (en) * 1954-04-25 1964-05-06 Koch & Sterzel Kommanditgesell Resin-insulated voltage transformer with pads around the active parts
DE1182366B (en) * 1956-02-04 1964-11-26 Siemens Ag An electrical device with a magnetic core and coil windings embedded in a hardening mass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068395B (en) * 1959-11-05
DE1055146B (en) * 1953-10-31 1959-04-16 Vacuumschmelze Ag Process for protecting objects made of magnetizable materials against mechanical deformation
DE976786C (en) * 1954-04-25 1964-05-06 Koch & Sterzel Kommanditgesell Resin-insulated voltage transformer with pads around the active parts
DE970277C (en) * 1955-01-23 1958-09-04 Vacuumschmelze Ag Method for solidifying toroidal cores, in particular toroidal tape cores, for protection against mechanical stresses
DE1182366B (en) * 1956-02-04 1964-11-26 Siemens Ag An electrical device with a magnetic core and coil windings embedded in a hardening mass

Also Published As

Publication number Publication date
BE578276A (en) 1959-10-29
FR945459A (en) 1949-05-05

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