GB645843A - Improvements in the construction of electric heating mantles - Google Patents

Improvements in the construction of electric heating mantles

Info

Publication number
GB645843A
GB645843A GB2351747A GB2351747A GB645843A GB 645843 A GB645843 A GB 645843A GB 2351747 A GB2351747 A GB 2351747A GB 2351747 A GB2351747 A GB 2351747A GB 645843 A GB645843 A GB 645843A
Authority
GB
United Kingdom
Prior art keywords
mantle
heating elements
glass
pads
inner cover
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
GB2351747A
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.)
Isopad Ltd
Original Assignee
Isopad 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 Isopad Ltd filed Critical Isopad Ltd
Priority to GB2351747A priority Critical patent/GB645843A/en
Publication of GB645843A publication Critical patent/GB645843A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Abstract

645,843. Electric heating elements. ISOPAD, Ltd., and REIK, H. Aug. 26, 1947, No. 23517. [Class 39(iii)] An electrically-heated flask or retort mantle 1 comprises several pads 7 of glass wool enclosed by an inner cover 4 of glass fibres and an outer cover 8 of glass fibres or other material. Heating elements 5 are secured to the surface of the inner cover 4 that is adjacent to the pads 7. When the mantle is shaped to the desired form, the heating elements 5 are energized to fuse the surrounding glass wool and, on cooling, a crust 13 forms that is relatively resistant to deformation. The inner cover 4 has a higher melting temperature than the glass wool pads. A top mantle 2, constructed in a similar manner to the lower mantle 1 but not necessarily subjected to a crust forming process, is divided into lobes 17, 18 enabling it to be slipped about the neck or necks of a flask. The heating element 5 is preferably a resistance wire wound about an asbestos core and surrounded by glass or asbestos. Large mantles have several independent heating elements. Relays can be used in conjunction with thermo couples for automatic heat control. The outer cover 8 can be treated with protective paint or it may comprise a metallic or other enclosure functioning as a stand.
GB2351747A 1947-08-26 1947-08-26 Improvements in the construction of electric heating mantles Expired GB645843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2351747A GB645843A (en) 1947-08-26 1947-08-26 Improvements in the construction of electric heating mantles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2351747A GB645843A (en) 1947-08-26 1947-08-26 Improvements in the construction of electric heating mantles

Publications (1)

Publication Number Publication Date
GB645843A true GB645843A (en) 1950-11-08

Family

ID=10196903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2351747A Expired GB645843A (en) 1947-08-26 1947-08-26 Improvements in the construction of electric heating mantles

Country Status (1)

Country Link
GB (1) GB645843A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140893A (en) * 1977-05-06 1979-02-20 Don Renteria Ball warming apparatus and methods of constructing and utilizing same
DE2846239A1 (en) * 1978-10-24 1980-05-08 Emil Bauer Heat insulation for electrically heated tools - made of glass fibre filled pad of woven glass fibre tissue
US5049724A (en) * 1989-04-12 1991-09-17 Anderson Robert A Thermal protection blanket for a blow out preventor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140893A (en) * 1977-05-06 1979-02-20 Don Renteria Ball warming apparatus and methods of constructing and utilizing same
DE2846239A1 (en) * 1978-10-24 1980-05-08 Emil Bauer Heat insulation for electrically heated tools - made of glass fibre filled pad of woven glass fibre tissue
US5049724A (en) * 1989-04-12 1991-09-17 Anderson Robert A Thermal protection blanket for a blow out preventor

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