DE351595C - Process for the production of electrical heating elements in the form of a hollow body, e.g. B. cylinder - Google Patents

Process for the production of electrical heating elements in the form of a hollow body, e.g. B. cylinder

Info

Publication number
DE351595C
DE351595C DENDAT351595D DE351595DD DE351595C DE 351595 C DE351595 C DE 351595C DE NDAT351595 D DENDAT351595 D DE NDAT351595D DE 351595D D DE351595D D DE 351595DD DE 351595 C DE351595 C DE 351595C
Authority
DE
Germany
Prior art keywords
cylinder
heating elements
electrical heating
hollow body
production
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
DENDAT351595D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Application granted granted Critical
Publication of DE351595C publication Critical patent/DE351595C/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
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible

Landscapes

  • Resistance Heating (AREA)

Description

BERLlM. OSOKUCKT W DdtBERLlM. OSOKUCKT W Ddt

Claims (1)

Patent-Anspruch: 7„Patent claim: 7 " Verfahren zur Herstellung von elektrischen Heizelementen in Form eines Hohlkörpers, z. B. Zylinders, bei denen das den Widerstandsdraht aufnehmende Isoliermaterial in einen Metallmantel eingeschlossen ist, dadurch gekennzeichnet, daß das eine Ende eines zu dem Metallmantel verwendeten Blechstreifens zunächst zu einem zylindrischen Ring zusammengerollt und verschweißt wird, dann auf diesen Ring der den Widerstandsdraht aufnehmende Isolierkörper (z. B. Glimmer- platten) aufgebracht und hierüber das freie Ende des abgebogenen Blechstreifens als äußerer Mantel unter Druck gepreßt wird.Method of manufacturing electrical Heating elements in the form of a hollow body, e.g. B. cylinder where the insulating material accommodating the resistance wire is enclosed in a metal jacket is, characterized in that one end of a sheet metal strip used for the metal jacket initially is rolled up into a cylindrical ring and welded, then on this ring the insulating body (e.g. mica plates) that accommodates the resistance wire applied and over this the free end of the bent sheet metal strip is pressed as an outer jacket under pressure. Hierzu ι Blatt Zeichnungen.,For this purpose ι sheet drawings.,
DENDAT351595D Process for the production of electrical heating elements in the form of a hollow body, e.g. B. cylinder Expired DE351595C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE351595T

Publications (1)

Publication Number Publication Date
DE351595C true DE351595C (en) 1922-04-10

Family

ID=6269760

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT351595D Expired DE351595C (en) Process for the production of electrical heating elements in the form of a hollow body, e.g. B. cylinder

Country Status (1)

Country Link
DE (1) DE351595C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477341A (en) * 1947-09-19 1949-07-26 Gaspard V Malmendier Heater for extrusion dies
US2820133A (en) * 1956-04-12 1958-01-14 Thermel Inc Heating unit
US4365144A (en) * 1980-03-10 1982-12-21 Georg Fischer Aktiengesellschaft Apparatus for welding a joint between plastic pipes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477341A (en) * 1947-09-19 1949-07-26 Gaspard V Malmendier Heater for extrusion dies
US2820133A (en) * 1956-04-12 1958-01-14 Thermel Inc Heating unit
US4365144A (en) * 1980-03-10 1982-12-21 Georg Fischer Aktiengesellschaft Apparatus for welding a joint between plastic pipes
US4449038A (en) * 1980-03-10 1984-05-15 George Fischer Ltd. Apparatus for welding a joint between plastic pipes

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