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GB495417A - Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type - Google Patents

Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type

Info

Publication number
GB495417A
GB495417A GB1368937A GB1368937A GB495417A GB 495417 A GB495417 A GB 495417A GB 1368937 A GB1368937 A GB 1368937A GB 1368937 A GB1368937 A GB 1368937A GB 495417 A GB495417 A GB 495417A
Authority
GB
United Kingdom
Prior art keywords
tube
relating
discharge devices
electron discharge
devices employing
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
GB1368937A
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 Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1368937A priority Critical patent/GB495417A/en
Priority to DEM141630D priority patent/DE763343C/en
Publication of GB495417A publication Critical patent/GB495417A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/44—Annular seals disposed between the ends of the vessel

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • External Artificial Organs (AREA)

Abstract

495,417. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and YOUNG, A. J. May 14, 1937, No. 13689. [Class 39 (i)] The foot-tube of a thermionic valve comprises an outer portion 1 and an inner portion 2, to the latter of which the exhaust tube 5 is sealed. The leads 3, 4 are sealed in through the joint between the tubes 2 and 3, and are equally spaced round the seal. The tubes are so proportioned that the tube 5 can be sealed off within the outer tube 1. The electrode system may be supported by a band 7 clamped on the tube 1. The tubes 1 and 2 may be fused together after the tube 5 has been fused to the tube 2.
GB1368937A 1937-05-14 1937-05-14 Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type Expired GB495417A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1368937A GB495417A (en) 1937-05-14 1937-05-14 Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type
DEM141630D DE763343C (en) 1937-05-14 1938-05-14 Current lead-in for an electrical discharge vessel made of glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1368937A GB495417A (en) 1937-05-14 1937-05-14 Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type

Publications (1)

Publication Number Publication Date
GB495417A true GB495417A (en) 1938-11-14

Family

ID=10027612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1368937A Expired GB495417A (en) 1937-05-14 1937-05-14 Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type

Country Status (2)

Country Link
DE (1) DE763343C (en)
GB (1) GB495417A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528217A (en) * 1946-11-26 1950-10-31 Csf Process of hermetic sealing of an evacuated enclosure, applying in particular to theluminescent discharge tubes
US2562163A (en) * 1949-03-01 1951-07-31 Philips Lab Inc Electric discharge tube

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE553155C (en) * 1927-06-16 1932-06-22 Radio Roehren Lab Dr Nickel G Method and machine for crimping lead-through wires in glass bodies, for example electric light bulbs
NL41572C (en) * 1934-08-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528217A (en) * 1946-11-26 1950-10-31 Csf Process of hermetic sealing of an evacuated enclosure, applying in particular to theluminescent discharge tubes
US2562163A (en) * 1949-03-01 1951-07-31 Philips Lab Inc Electric discharge tube

Also Published As

Publication number Publication date
DE763343C (en) 1953-05-11

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