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
GB25358/34A
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.)
Siemens Plania Werke AG
Original Assignee
Siemens Plania Werke AG
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 Siemens Plania Werke AGfiledCriticalSiemens Plania Werke AG
Publication of GB423022ApublicationCriticalpatent/GB423022A/en
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
H05B3/62—Heating elements specially adapted for furnaces
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Carbon And Carbon Compounds
(AREA)
Abstract
423,022. Electric resistance furnaces. SIEMENS - PLANIAWERKE AKT. - GES. FUR KOHLEFABRIKATE, 128, Herzbergstrasse, Lichtenberg, Berlin. ' Sept. 3, 1934, No. 25358. Convention date, Dec. 15, 1933. [Class 39 (iii)] In a heating or annealing furnace employing tubular heating elements of silicon carbide, inert gas is supplied to the interior of the tubes from one or both ends at such a pressure that it penetrates through the walls of the tubes to the interior of the heating chamber.
GB25358/34A1933-12-151934-09-03Improvements relating to the operation of electric furnaces
ExpiredGB423022A
(en)