GB720792A - Improvements in or relating to electric discharge tubes and glass bases therefor - Google Patents

Improvements in or relating to electric discharge tubes and glass bases therefor

Info

Publication number
GB720792A
GB720792A GB6434/53A GB643453A GB720792A GB 720792 A GB720792 A GB 720792A GB 6434/53 A GB6434/53 A GB 6434/53A GB 643453 A GB643453 A GB 643453A GB 720792 A GB720792 A GB 720792A
Authority
GB
United Kingdom
Prior art keywords
conductors
relating
electric discharge
discharge tubes
glass bases
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
GB6434/53A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB720792A publication Critical patent/GB720792A/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

Landscapes

  • Joining Of Glass To Other Materials (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

720,792. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 9, 1953 [March 12, 1952], No. 6434/53. Class 39 (1) In a glass base 2 which is made by fusing only, without pressing or moulding, supply conductors 3 pass through a thickened ridge 15, which has grooves 16 between the conductors to improve insulation. During manufacture, the conductors are pressed downwards, for example by a templet 12 having cavities 13 of predetermined depth accommodating the tops of the conductors. At the same time the grooves are formed in the soft glass by ribs 14.
GB6434/53A 1952-03-12 1953-03-09 Improvements in or relating to electric discharge tubes and glass bases therefor Expired GB720792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL720792X 1952-03-12

Publications (1)

Publication Number Publication Date
GB720792A true GB720792A (en) 1954-12-29

Family

ID=19816247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6434/53A Expired GB720792A (en) 1952-03-12 1953-03-09 Improvements in or relating to electric discharge tubes and glass bases therefor

Country Status (4)

Country Link
DE (1) DE949299C (en)
FR (1) FR1072846A (en)
GB (1) GB720792A (en)
NL (2) NL79347C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL222638A (en) * 1956-11-22 1900-01-01

Also Published As

Publication number Publication date
NL79347C (en)
NL168072B (en)
FR1072846A (en) 1954-09-16
DE949299C (en) 1956-09-20

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