GB619148A - Improvements in or relating to electric discharge tubes and incandescent lamps - Google Patents

Improvements in or relating to electric discharge tubes and incandescent lamps

Info

Publication number
GB619148A
GB619148A GB28249/46A GB2824946A GB619148A GB 619148 A GB619148 A GB 619148A GB 28249/46 A GB28249/46 A GB 28249/46A GB 2824946 A GB2824946 A GB 2824946A GB 619148 A GB619148 A GB 619148A
Authority
GB
United Kingdom
Prior art keywords
per cent
electric discharge
glass
relating
incandescent lamps
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
GB28249/46A
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 Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB619148A publication Critical patent/GB619148A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/04—Joining glass to metal by means of an interlayer
    • C03C27/042—Joining glass to metal by means of an interlayer consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts
    • C03C27/044—Joining glass to metal by means of an interlayer consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts of glass, glass-ceramic or ceramic material only
    • 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
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings

Abstract

619,148. Enamels. PHILIPS LAMPS, Ltd. Sept. 20, 1946, No. 28249. Convention date, April 6, 1943. Drawings to Specification. [Class 56] [Also in Groups XI, XXXVI and XL (a)] Enamel for securing a very thin metal foil to the glass wall of an electric discharge tube or incandescent lamp has a composition 65 per cent PbO, 22.4 per cent B 2 O 3 and 12.6 per cent by weight where the glass is lead or lime glass, and a composition, 17 per cent SiO 2 , 23 per cent B 2 O 3 , 25 per cent PbO, 10 per cent ZnO and 25 per cent MnO 2 for a hard glass.
GB28249/46A 1943-04-06 1946-09-20 Improvements in or relating to electric discharge tubes and incandescent lamps Expired GB619148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL619148X 1943-04-06

Publications (1)

Publication Number Publication Date
GB619148A true GB619148A (en) 1949-03-04

Family

ID=19788377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28249/46A Expired GB619148A (en) 1943-04-06 1946-09-20 Improvements in or relating to electric discharge tubes and incandescent lamps

Country Status (4)

Country Link
US (1) US2517023A (en)
FR (1) FR903188A (en)
GB (1) GB619148A (en)
NL (1) NL66619C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027482A (en) * 1956-11-20 1962-03-27 Rca Corp Lime glass article having a surface of reduced resistivity
US3465196A (en) * 1966-03-02 1969-09-02 Gen Electric Electric discharge device with means to prevent release of occluded gases from the envelope thereof and method
WO1983000949A1 (en) * 1981-09-01 1983-03-17 Motorola Inc Improved glass bonding means and method
US6509525B2 (en) 1998-11-07 2003-01-21 Emerson Electric Co. Hermetic terminal assembly
US6107566A (en) * 1998-11-07 2000-08-22 Emerson Electric Co. Hermetic terminal structure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064184A (en) * 1936-12-15 Lead-in conductor
US1128817A (en) * 1912-07-03 1915-02-16 Wireless Specialty Apparatus Company Valve-detector for wireless.
US1266614A (en) * 1915-01-06 1918-05-21 Westinghouse Electric & Mfg Co Seal.
US1857645A (en) * 1927-03-11 1932-05-10 Arcturus Radio Tube Co Vacuum tube construction
US1802371A (en) * 1928-08-03 1931-04-28 Francis J Bullivant Electromagnetic device
FR684526A (en) * 1928-11-08 1930-06-26 Telefunken Gmbh Improvements to electronic tubes
US2056637A (en) * 1931-01-26 1936-10-06 Gen Electric Vapor Lamp Co Method of affixing foreing substances to a vitreous body
US2250184A (en) * 1938-02-08 1941-07-22 Hygrade Sylvania Corp Electron discharge tube
US2307027A (en) * 1940-05-10 1943-01-05 Davie Shielded radio tube
US2283090A (en) * 1941-04-30 1942-05-12 Rca Corp Composite glass and metal envelope
US2400011A (en) * 1943-01-06 1946-05-07 Cathodeon Ltd Screening of amplifying valves

Also Published As

Publication number Publication date
US2517023A (en) 1950-08-01
NL66619C (en)
FR903188A (en) 1945-09-26

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