GB777140A - Improvements in or relating to the manufacture of electric discharge devices - Google Patents

Improvements in or relating to the manufacture of electric discharge devices

Info

Publication number
GB777140A
GB777140A GB3135554A GB3135554A GB777140A GB 777140 A GB777140 A GB 777140A GB 3135554 A GB3135554 A GB 3135554A GB 3135554 A GB3135554 A GB 3135554A GB 777140 A GB777140 A GB 777140A
Authority
GB
United Kingdom
Prior art keywords
relating
manufacture
electric discharge
discharge devices
oct
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
GB3135554A
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.)
LESLIE ROBERT EDWARD WINDSOR
MO Valve Co Ltd
Original Assignee
LESLIE ROBERT EDWARD WINDSOR
MO Valve 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 LESLIE ROBERT EDWARD WINDSOR, MO Valve Co Ltd filed Critical LESLIE ROBERT EDWARD WINDSOR
Priority to GB3135554A priority Critical patent/GB777140A/en
Publication of GB777140A publication Critical patent/GB777140A/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
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/24—Vacuum-tight joints between parts of vessel between insulating parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
    • H01J2893/0039—Glass-to-glass connection, e.g. by soldering

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

777,140. Discharge apparatus. M-O. VALVE CO., Ltd., and WINDSOR, L. R. E. Oct. 28, 1955 [Oct. 29, 1954], No. 31355/54. Class 39(1). Radiation focused from a high temperature source is utilized to make a seal. The glass bulb 1 of a tube which is to be sealed to the base 3 has a coating 2 of absorptive material, such as graphite, on the part where the seal is to be made. Radiant energy from an arc 5 operating at a colour temperature of about 5000‹K is focused by a reflector 6 on to the coating 2 ; a sufficient temperature to effect sealing (about 850‹C.) is produced, the tube being rotated for uniform heating. Exhaust tubes may be sealed off similarly.
GB3135554A 1954-10-29 1954-10-29 Improvements in or relating to the manufacture of electric discharge devices Expired GB777140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3135554A GB777140A (en) 1954-10-29 1954-10-29 Improvements in or relating to the manufacture of electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3135554A GB777140A (en) 1954-10-29 1954-10-29 Improvements in or relating to the manufacture of electric discharge devices

Publications (1)

Publication Number Publication Date
GB777140A true GB777140A (en) 1957-06-19

Family

ID=10321885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3135554A Expired GB777140A (en) 1954-10-29 1954-10-29 Improvements in or relating to the manufacture of electric discharge devices

Country Status (1)

Country Link
GB (1) GB777140A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434818A (en) * 1965-06-03 1969-03-25 Westinghouse Electric Corp Apparatus for sealing off glass vessels
US3632327A (en) * 1968-05-07 1972-01-04 Nippon Electric Co Machine for planting a refractory piece in a sheetlike thermoplastic mass
US3828407A (en) * 1971-09-17 1974-08-13 Philips Corp Method of manufacturing electric lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434818A (en) * 1965-06-03 1969-03-25 Westinghouse Electric Corp Apparatus for sealing off glass vessels
US3632327A (en) * 1968-05-07 1972-01-04 Nippon Electric Co Machine for planting a refractory piece in a sheetlike thermoplastic mass
US3828407A (en) * 1971-09-17 1974-08-13 Philips Corp Method of manufacturing electric lamps

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