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
GB3237/44A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co LtdfiledCriticalMarconis Wireless Telegraph Co Ltd
Publication of GB577149ApublicationCriticalpatent/GB577149A/en
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/40—Closing vessels
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Elimination Of Static Electricity
(AREA)
Abstract
577,149. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 22, 1944, No. 3237. Convention date, Nov. 28, 1942. [Class 39 (i)] A discharge tube with a metal envelope having a metal exhaust tube attached thereto, has a wire connected to the electrode assembly and extending into the exhaust tube to which it is electrically connected when the latter is sealed. In the form shown, a wire 6 connected to the electrode assembly 4 projects into the metal exhaust tube 5 attached to the metal envelope 1 and the exhaust tube is squeezed closed on the wire by pressure exerted at 7. The wire 6 and hence the assembly is earthed by connection to an earthed pin 3 in the glass base 2. Specification 561,111, [Group XXII], is referred to.
GB3237/44A1942-11-281944-02-22Improvements in or relating to electron discharge devices
ExpiredGB577149A
(en)
Improvements in or relating to discharge tubes comprising a metallic exhaust tube and method of finishing hermetically pinched, metallic exhaust tubes of discharge tubes