GB776924A - Improvements in or relating to electrical heating devices - Google Patents

Improvements in or relating to electrical heating devices

Info

Publication number
GB776924A
GB776924A GB3097154A GB3097154A GB776924A GB 776924 A GB776924 A GB 776924A GB 3097154 A GB3097154 A GB 3097154A GB 3097154 A GB3097154 A GB 3097154A GB 776924 A GB776924 A GB 776924A
Authority
GB
United Kingdom
Prior art keywords
flexible
bead
beads
metal
heater
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
GB3097154A
Inventor
Henry Herbert Goldstaub
Jack Reginald Moore Mcnally
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.)
Electrothermal Engineering Ltd
Original Assignee
Electrothermal Engineering 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 Electrothermal Engineering Ltd filed Critical Electrothermal Engineering Ltd
Priority to GB3097154A priority Critical patent/GB776924A/en
Publication of GB776924A publication Critical patent/GB776924A/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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables

Landscapes

  • Resistance Heating (AREA)

Abstract

776,924. Flexible electric heating resistances. ELECTROTHERMAL ENGINEERING, Ltd. Oct. 18, 1954 [Nov. 9, 1953], No. 30971/53. Class 39(3) A flexible heater for use at 800 ‹C. comprises a flexible resistance wire 19 surrounded by a series of like porcelain, quartz or other refractory beads 3 placed end to end, each pair of adjacent beads interfitting or including a bead end formed with a curved surface bearing on the other bead end of a pair so that flexion of the wire is permitted without tensioning it, and the beads are enclosed in a flexible tubular metal casing 4 e.g. a metal braiding, a closely wound metallic coil 15 or as a flexible metallic hose. The heating wire 19 is straight and may be stranded or may be wound on an asbestos core 1 and may be of the same metal as the external - armouring. The beads 3 are in contact at their ends and are hollow cylinders flat at one end and rounded convexly at the other end, or convex at both ends. The bead may taper and have a rounded apex 3A received in a concavity in the base of an adjoining bead. The tubular heater thus formed may be wrapped round an object to be heated. The end of the resistance wire may be held in a recess in the end of a metal plug 5 having a flange 6 gripped between two annular insulating bushes 8, 9 shaped as shown. The end 13 of the heater tube 4 is belled out over the bush 9 and is held in place by a metal sleeve 10 spun over the bushes 8, 9. The heafter tube 4 is received by a mouth 12 of the sleeve 10, and the resistance wire 19 is relieved of any strain imposed on the heater tube.
GB3097154A 1953-11-09 1953-11-09 Improvements in or relating to electrical heating devices Expired GB776924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3097154A GB776924A (en) 1953-11-09 1953-11-09 Improvements in or relating to electrical heating devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3097154A GB776924A (en) 1953-11-09 1953-11-09 Improvements in or relating to electrical heating devices

Publications (1)

Publication Number Publication Date
GB776924A true GB776924A (en) 1957-06-12

Family

ID=10315957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3097154A Expired GB776924A (en) 1953-11-09 1953-11-09 Improvements in or relating to electrical heating devices

Country Status (1)

Country Link
GB (1) GB776924A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012065608A1 (en) * 2010-11-19 2012-05-24 Andreas Nebelung Device and method for inductively heating metal components during welding, using a cooled flexible induction element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012065608A1 (en) * 2010-11-19 2012-05-24 Andreas Nebelung Device and method for inductively heating metal components during welding, using a cooled flexible induction element

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