GB164820A - Improvements in or relating to electrical liquid heaters - Google Patents

Improvements in or relating to electrical liquid heaters

Info

Publication number
GB164820A
GB164820A GB721020A GB721020A GB164820A GB 164820 A GB164820 A GB 164820A GB 721020 A GB721020 A GB 721020A GB 721020 A GB721020 A GB 721020A GB 164820 A GB164820 A GB 164820A
Authority
GB
United Kingdom
Prior art keywords
heating
cover
mica
enclosed
secured
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
GB721020A
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.)
WILLIAM MARPLES
Original Assignee
WILLIAM MARPLES
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 WILLIAM MARPLES filed Critical WILLIAM MARPLES
Priority to GB721020A priority Critical patent/GB164820A/en
Publication of GB164820A publication Critical patent/GB164820A/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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/80—Portable immersion heaters

Abstract

164,820. Marples, W. Dec. 3, 1920. Heating by electricity.-In an immersion heater, Fig. 3, the heating- element is enclosed between concentric metal tubes 3, 4 connected together at the bottom by a washer 5 secured by brazing or otherwise. The inner tube 3, which is substantially shorter than the outer one one, has a fixed cover 8 having a tubular screw-cut extension 9 over which fits a detachable cover 10 for the outer tube. The cover 10 is secured by a bolt 11. The space between the covers 8, 10 is preferably filled with fire-clay cement. A hollow handle 12 enclosing the leads and providing an air outlet passes through the cover 10. The heater may contain two or more beating elements which may be connected in series or parallel by switches. The heating-element may consist of a wire 2, Fig. 2, wound in notches at the edges of a mica sheet 1 and passed through holes in the middle; it may be enclosed between sheets of mica. Mica may be used in conbination with asbestos. Alternatively, the heating-element may be insulated by an airgap or a vacuum.
GB721020A 1920-12-03 1920-12-03 Improvements in or relating to electrical liquid heaters Expired GB164820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB721020A GB164820A (en) 1920-12-03 1920-12-03 Improvements in or relating to electrical liquid heaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB721020A GB164820A (en) 1920-12-03 1920-12-03 Improvements in or relating to electrical liquid heaters

Publications (1)

Publication Number Publication Date
GB164820A true GB164820A (en) 1921-06-23

Family

ID=9828731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB721020A Expired GB164820A (en) 1920-12-03 1920-12-03 Improvements in or relating to electrical liquid heaters

Country Status (1)

Country Link
GB (1) GB164820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006571A1 (en) * 1990-10-02 1992-04-16 Newa S.R.L. Resistor for immersion-type low power heating elements, particularly for aquariums and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006571A1 (en) * 1990-10-02 1992-04-16 Newa S.R.L. Resistor for immersion-type low power heating elements, particularly for aquariums and the like

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