GB833886A - Improvements relating to t.r. devices - Google Patents

Improvements relating to t.r. devices

Info

Publication number
GB833886A
GB833886A GB2593657A GB2593657A GB833886A GB 833886 A GB833886 A GB 833886A GB 2593657 A GB2593657 A GB 2593657A GB 2593657 A GB2593657 A GB 2593657A GB 833886 A GB833886 A GB 833886A
Authority
GB
United Kingdom
Prior art keywords
slot
tubing
glass
wall
metal wall
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
GB2593657A
Inventor
William Joseph Scott
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB2593657A priority Critical patent/GB833886A/en
Publication of GB833886A publication Critical patent/GB833886A/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
    • H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive 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
    • H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
    • H01J2893/0043—Glass-to-metal or quartz-to-metal, e.g. by soldering

Abstract

833,886. T.R. switches. BRITISH THOMSON-HOUSTON CO. Ltd. Aug. 15, 1958 [Aug. 16, 1957], No. 25936/57. Class 39(1). [Also in Group XXXVI] A process for forming over a slot 2 in a metal wall 1 a window of vitreous material hermetically sealed to the rim of the slot and a protective dome over the window, for use in a T.R. device, consists in assembling the metal wall 1 with a length of glass tubing 4 located with its longitudinal axis parallel to the longitudinal axis of the slot and then heating the wall to cause the portion of the glass tubing in contact with the wall to soften and sink on and seal to the metal wall around the rim of the slot, whilst leaving the remainder of the tubing to constitute the dome. The heating may be effected by high frequency induction in an atmosphere of non-oxidizing or reducing gas or gases. With a narrow slot (about # in and under) the plastic glass is supported in the slot by its own surface tension. With wide slots (say “ in. or more) it may be necessary to support the centre of the glass pane e.g. by providing a gas pressure differential on opposite sides of the pane. The ends of the glass tubing 4 may be sealed to form an enclosure which is filled with gas and/or water vapour through an evacuating tubulation. Alternatively the ends of the tubing may be tapered to openings which may be made to an exact size e.g. by sealing in short lengths of vitreous or ceramic tubing.
GB2593657A 1957-08-16 1957-08-16 Improvements relating to t.r. devices Expired GB833886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2593657A GB833886A (en) 1957-08-16 1957-08-16 Improvements relating to t.r. devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2593657A GB833886A (en) 1957-08-16 1957-08-16 Improvements relating to t.r. devices

Publications (1)

Publication Number Publication Date
GB833886A true GB833886A (en) 1960-05-04

Family

ID=10235720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2593657A Expired GB833886A (en) 1957-08-16 1957-08-16 Improvements relating to t.r. devices

Country Status (1)

Country Link
GB (1) GB833886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54146171U (en) * 1978-03-31 1979-10-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54146171U (en) * 1978-03-31 1979-10-11
JPS5647956Y2 (en) * 1978-03-31 1981-11-10

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