GB623786A - Improvements in or relating to electrical heating devices and method of making the same - Google Patents

Improvements in or relating to electrical heating devices and method of making the same

Info

Publication number
GB623786A
GB623786A GB6997/47A GB699747A GB623786A GB 623786 A GB623786 A GB 623786A GB 6997/47 A GB6997/47 A GB 6997/47A GB 699747 A GB699747 A GB 699747A GB 623786 A GB623786 A GB 623786A
Authority
GB
United Kingdom
Prior art keywords
glass
layer
casing
packing
woven
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
GB6997/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB623786A publication Critical patent/GB623786A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/58—Heating hoses; Heating collars

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)

Abstract

623,786. Electric resistance heaters. MOREY, G. H. March 13,1947, No. 6997. Convention date, Sept. 20, 1940. [Class 39(iii)] A heater comprises an inner layer 1 of flexible fireproof material shaped to conform closely to the exterior of the glass. or like vessel to be heated and a resistance wire 3 fixed in spaced non-shorting manner to the layer 1, which is supported on a packing 4 of resilient heat-insulating material in a rigid outer casing 2. The layer 1 is of woven glass cloth shaped by cutting, stretching or tucking and has an annular lip 5 held by a ring 8 on a lip 6 on the metal or plastic casing 2, which may have a boss 11 drilled to take a rod 12 of a clamp stand. The packing 4 comprises glass fibres, glass wool, slag wool or comminuted magnesia. The resistance may be sewn by glass fibres or woven into the fabric, or a double fabric may be used. The casing may be of asbestos board with a flat base. Two or more units may be added to heat the upper parts of an article.
GB6997/47A 1940-09-20 1947-03-13 Improvements in or relating to electrical heating devices and method of making the same Expired GB623786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US623786XA 1940-09-20 1940-09-20

Publications (1)

Publication Number Publication Date
GB623786A true GB623786A (en) 1949-05-23

Family

ID=22042088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6997/47A Expired GB623786A (en) 1940-09-20 1947-03-13 Improvements in or relating to electrical heating devices and method of making the same

Country Status (1)

Country Link
GB (1) GB623786A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459472A (en) * 1982-04-05 1984-07-10 Electrothermal Engineering Limited Electric heating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459472A (en) * 1982-04-05 1984-07-10 Electrothermal Engineering Limited Electric heating apparatus

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