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
GB18918/38A
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.)
VER GLUHLAMPEN und ELEK ZITATS
Original Assignee
VER GLUHLAMPEN und ELEK ZITATS
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 VER GLUHLAMPEN und ELEK ZITATSfiledCriticalVER GLUHLAMPEN und ELEK ZITATS
Publication of GB512281ApublicationCriticalpatent/GB512281A/en
H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Resistance Heating
(AREA)
Vessels And Coating Films For Discharge Lamps
(AREA)
Abstract
512,281. Uniting metal to vitreous materials by heat. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. June 25, 1938, No. 18918. Convention date, June 26, 1937. Drawings to Specification. [Class 36] Lamp stems or bases are formed by fusing wires or foils of refractory metal into separate pieces of hard glass or quartz glass and subsequently fusing together two or more members so formed. An exhausting tube and filament anchoring wires or a carrier rod for the filament anchors may be fused with the members at the same time as they are fused together or subsequently. Specifications 483,771, 486,872 and 489,534 are referred to.
GB18918/38A1937-06-261938-06-25Improvements in and relating to the manufacture of electric incandescent lamps
ExpiredGB512281A
(en)
Process for the production of electric lamps with a filling gas pressure exceeding at least one atmosphere at room temperature and an electric lamp produced therefrom.