GB499682A - Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement - Google Patents

Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement

Info

Publication number
GB499682A
GB499682A GB3114937A GB3114937A GB499682A GB 499682 A GB499682 A GB 499682A GB 3114937 A GB3114937 A GB 3114937A GB 3114937 A GB3114937 A GB 3114937A GB 499682 A GB499682 A GB 499682A
Authority
GB
United Kingdom
Prior art keywords
aperture
cap
strip
capping
cement
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
GB3114937A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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
Priority to DE1937P0076165 priority Critical patent/DE701249C/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB3114937A priority patent/GB499682A/en
Publication of GB499682A publication Critical patent/GB499682A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • 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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/34—Joining base to vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

499,682. Electric incandescent lamp caps. GENERAL ELECTRIC CO. Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gliihlampen) Nov. 12, 1937, No. 31149. Addition to 467,956. Drawings to Specification. [Class 39 (ii)] The invention described in the parent Specification is modified by the use of a screwthreaded metal cap which is not provided with a soldering aperture in its side wall until it is screwed into position on a lamp bulb, the aperture then being cut in that part of the cap which is above the longitudinal channel in the bulb neck and above the annular metal strip which is disposed between the cap and the bulb neck, so that a drop of solder introduced into the aperture secures together the cap, annular strip, and a leading-in wire extending along the channel and bent around the strip. The aperture is preferably cut by means of a milling-disc.
GB3114937A 1937-10-31 1937-11-12 Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement Expired GB499682A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1937P0076165 DE701249C (en) 1937-10-31 1937-10-31 Method and device for producing a putty-free base attachment to electric light bulbs and similar closed glass vessels
GB3114937A GB499682A (en) 1937-11-12 1937-11-12 Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3114937A GB499682A (en) 1937-11-12 1937-11-12 Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement

Publications (1)

Publication Number Publication Date
GB499682A true GB499682A (en) 1939-01-27

Family

ID=10318738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3114937A Expired GB499682A (en) 1937-10-31 1937-11-12 Improvements in methods of capping vitreous vessels, such as electric incandescent lamps, without the use of cement

Country Status (1)

Country Link
GB (1) GB499682A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732878A (en) * 1956-01-31 Lamp basing method
GB2128016A (en) * 1982-09-30 1984-04-18 Tokyo Shibaura Electric Co Lamp assembly
US4940439A (en) * 1987-12-25 1990-07-10 Hitachi, Ltd. Method of and apparatus for manufacturing Braun tubes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732878A (en) * 1956-01-31 Lamp basing method
GB2128016A (en) * 1982-09-30 1984-04-18 Tokyo Shibaura Electric Co Lamp assembly
US4940439A (en) * 1987-12-25 1990-07-10 Hitachi, Ltd. Method of and apparatus for manufacturing Braun tubes

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