GB992440A - Improvements in and relating to electrical heating apparatus - Google Patents

Improvements in and relating to electrical heating apparatus

Info

Publication number
GB992440A
GB992440A GB1948163A GB1948163A GB992440A GB 992440 A GB992440 A GB 992440A GB 1948163 A GB1948163 A GB 1948163A GB 1948163 A GB1948163 A GB 1948163A GB 992440 A GB992440 A GB 992440A
Authority
GB
United Kingdom
Prior art keywords
relating
heating apparatus
electrical heating
boveri
tappings
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
GB1948163A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB992440A publication Critical patent/GB992440A/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
    • H05B3/0004—Devices wherein the heating current flows through the material to be heated

Abstract

992,440. Constant current systems. BROWN, BOVERI & CO. Ltd. May 16, 1963 [June 23, 1962], No. 19481/63. Heading G3X. The current to a heating load 1 fed with D.C. from a transformer-rectifier combination 2, 3 is maintained constant by a resonant circuit 4, 5 tunable by variation of the number of capacitors or by tappings or variable air gap in the choke to a band of frequencies on either side of the mains frequency.
GB1948163A 1962-06-23 1963-05-16 Improvements in and relating to electrical heating apparatus Expired GB992440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB67796A DE1148670B (en) 1962-06-23 1962-06-23 Arrangement for the direct current heating of metallic workpieces by direct current

Publications (1)

Publication Number Publication Date
GB992440A true GB992440A (en) 1965-05-19

Family

ID=6975646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1948163A Expired GB992440A (en) 1962-06-23 1963-05-16 Improvements in and relating to electrical heating apparatus

Country Status (3)

Country Link
CH (1) CH403109A (en)
DE (1) DE1148670B (en)
GB (1) GB992440A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014895A1 (en) * 1992-01-23 1993-08-05 Board Of Regents, The University Of Texas System Apparatus and method for deforming a workpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014895A1 (en) * 1992-01-23 1993-08-05 Board Of Regents, The University Of Texas System Apparatus and method for deforming a workpiece
US5515705A (en) * 1992-01-23 1996-05-14 Board Of Regents, The University Of Texas System Apparatus and method for deforming a workpiece

Also Published As

Publication number Publication date
DE1148670B (en) 1963-05-16
CH403109A (en) 1965-11-30

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