GB487722A - Improvements in methods of sealing side-tubes to thick-walled vitreous tubing - Google Patents

Improvements in methods of sealing side-tubes to thick-walled vitreous tubing

Info

Publication number
GB487722A
GB487722A GB1508237A GB1508237A GB487722A GB 487722 A GB487722 A GB 487722A GB 1508237 A GB1508237 A GB 1508237A GB 1508237 A GB1508237 A GB 1508237A GB 487722 A GB487722 A GB 487722A
Authority
GB
United Kingdom
Prior art keywords
tubes
thick
methods
tube
sealing side
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
GB1508237A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1508237A priority Critical patent/GB487722A/en
Publication of GB487722A publication Critical patent/GB487722A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
    • C03B23/213—Joining projections or feet

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

487,722. Welding and jointing silica. GENERAL ELECTRIC CO., Ltd., and BREADNER, R. L. May 31, 1937, No. 15082. [Class 56] Relates to a method of sealing a side tube into a vitreous envelope, particularly to a quartz tube that forms the envelope of a highpressure mercury - vapour lamp. According to the invention, a depression 3 is formed in the wall of the envelope 1 by a process that does not involve the distortion of the tube by heat, the bottom of the depression is pierced, and the end of the side tube 2 is then inserted in the depression and fused to the tube 1.
GB1508237A 1937-05-31 1937-05-31 Improvements in methods of sealing side-tubes to thick-walled vitreous tubing Expired GB487722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508237A GB487722A (en) 1937-05-31 1937-05-31 Improvements in methods of sealing side-tubes to thick-walled vitreous tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508237A GB487722A (en) 1937-05-31 1937-05-31 Improvements in methods of sealing side-tubes to thick-walled vitreous tubing

Publications (1)

Publication Number Publication Date
GB487722A true GB487722A (en) 1938-06-24

Family

ID=10052698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508237A Expired GB487722A (en) 1937-05-31 1937-05-31 Improvements in methods of sealing side-tubes to thick-walled vitreous tubing

Country Status (1)

Country Link
GB (1) GB487722A (en)

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