GB1306064A - - Google Patents

Info

Publication number
GB1306064A
GB1306064A GB1306064DA GB1306064A GB 1306064 A GB1306064 A GB 1306064A GB 1306064D A GB1306064D A GB 1306064DA GB 1306064 A GB1306064 A GB 1306064A
Authority
GB
United Kingdom
Prior art keywords
waveguide
strip
lies
heating
microwave
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
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 filed Critical
Publication of GB1306064A publication Critical patent/GB1306064A/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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it

Abstract

1306064 Microwave heating HIRST (MICROWAVE HEATING) Ltd 10 March 1970 [10 Dec 1968] 58567/68 Heading H5H A strip 3 of non-uniform cross-section, e.g. for use as a rubber sealing strip for a car window, is passed through a waveguide 10 on a conveyer belt 4 so that its thickest portion 3a lies in the relatively high intensity area of the microwave field (i.e. it lies on the axis of the waveguide) and the thinner portion 3b lies in the areas of relatively low intensity, the strip being simultaneously heated from a source other than a microwave source to ensure uniform heating. As shown a fan heater 27 circulates air through the waveguide 10 via tubing 26, manifold boxes 25 and perforated ends 24 of the waveguide 10. Alternatively infra-red elements clad in asbestos may surround the waveguide or steam can be used. The conveyer 4 is supported within waveguide 10 by U-shaped support brackets 12, 14, biased upwardly to tension the belt by springs. Magnetrons 18 supply energy to waveguides 16 tuned by axially adjustable end walls 20, interconnected by a centre section 10c of waveguide 10 and respectively joined to two end portions 10a, 10b which may act as chokes or be provided with waterloads. The strip 3 is extruded on to the belt 4 and may be cut to size after heating.
GB1306064D 1968-12-10 1968-12-10 Expired GB1306064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5856768 1968-12-10

Publications (1)

Publication Number Publication Date
GB1306064A true GB1306064A (en) 1973-02-07

Family

ID=10481920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1306064D Expired GB1306064A (en) 1968-12-10 1968-12-10

Country Status (1)

Country Link
GB (1) GB1306064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395663A1 (en) * 1977-01-24 1979-01-19 Commissariat Energie Atomique Microwave heat treatment of articles, e.g. of refractory material - with avoidance of plasma formation near article being treated, increasing speed of treatment and possibly higher temps.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395663A1 (en) * 1977-01-24 1979-01-19 Commissariat Energie Atomique Microwave heat treatment of articles, e.g. of refractory material - with avoidance of plasma formation near article being treated, increasing speed of treatment and possibly higher temps.

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees