GB790955A - Improvements in or relating to sodium-vapour discharge lamps - Google Patents

Improvements in or relating to sodium-vapour discharge lamps

Info

Publication number
GB790955A
GB790955A GB1995/56A GB199556A GB790955A GB 790955 A GB790955 A GB 790955A GB 1995/56 A GB1995/56 A GB 1995/56A GB 199556 A GB199556 A GB 199556A GB 790955 A GB790955 A GB 790955A
Authority
GB
United Kingdom
Prior art keywords
glass
sodium
cao
vapour discharge
relating
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
GB1995/56A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB790955A publication Critical patent/GB790955A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/18—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes
    • B41F3/30—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes for lithography
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/26—Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/22—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)

Abstract

790,955. Glass. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 20, 1956 [Jan. 24, 1955], No. 1995/56. Drawings to Specification. Class 56. [Also in Group XL(a)] The inner wall of the envelope of a sodium vapour discharge lamp having a rare gas filling consists of a glass containing 20-30 per cent B 2 O 3 , 20-30 per cent Al 2 O 3 and 30-60 per cent (CaO+BaO). In one example the glass has the following percentage composition, B 2 O 3 -22, CaO-10, Al 2 O 3 -22, BaO-40, K 2 O-6. In a test lamp a glass is referred to having the following percentage composition, SiO 2 -9, B 2 O 3 -51, Na 2 O-15, CaO-10, Al 2 O 3 -15.
GB1995/56A 1955-01-24 1956-01-20 Improvements in or relating to sodium-vapour discharge lamps Expired GB790955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL194246A NL105207C (en) 1955-01-24 1955-01-24

Publications (1)

Publication Number Publication Date
GB790955A true GB790955A (en) 1958-02-19

Family

ID=38197898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1995/56A Expired GB790955A (en) 1955-01-24 1956-01-20 Improvements in or relating to sodium-vapour discharge lamps

Country Status (8)

Country Link
US (1) US2899584A (en)
BE (1) BE544641A (en)
CH (1) CH336502A (en)
DE (1) DE1040685B (en)
ES (1) ES226221A1 (en)
FR (1) FR1140325A (en)
GB (1) GB790955A (en)
NL (1) NL105207C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL131164C (en) * 1960-01-09
US3150281A (en) * 1961-04-26 1964-09-22 Adli M Bishay Glass of high ultraviolet transmittance, method, and articles manufactured therefrom
US3378362A (en) * 1961-08-01 1968-04-16 Gen Electric Method for making thin film glass elements
NL269925A (en) * 1961-10-04
US3275358A (en) * 1963-03-14 1966-09-27 Gen Electric Glass-to-metal and glass-to-ceramic seals
NL7712059A (en) * 1977-11-02 1979-05-04 Philips Nv LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP.
FR2410287A1 (en) * 1977-11-23 1979-06-22 Cgr Ultrasonic LARGE ANGULAR SECTORAL SCAN MEDICAL ECHOGRAPHY UNIT
NL7811350A (en) * 1978-11-17 1980-05-20 Philips Nv LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP.
US5015530A (en) * 1988-01-21 1991-05-14 The Unites States Of America As Represetned By The United States Department Of Energy High expansion, lithium corrosion resistant sealing glasses
US5104738A (en) * 1988-06-01 1992-04-14 The United States Of America As Represented By The United States Department Of Energy Sealing glasses for titanium and titanium alloys
US4861734A (en) * 1988-08-01 1989-08-29 Corning Incorporated Alkaline earth aluminoborate glass-ceramics

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736642A (en) * 1922-03-25 1929-11-19 George P Beaudry Metal-vapor lamp
US2228327A (en) * 1929-05-04 1941-01-14 Hans J Spanner Discharge device
AT125878B (en) * 1929-06-26 1931-12-10 Claude Neon Lights Inc Cold weather fluorescent tube.
US2103039A (en) * 1929-07-10 1937-12-21 Gen Electric Gaseous electric discharge device
NL38224C (en) * 1932-04-12
AT143996B (en) * 1932-04-12 1935-12-10 Jenaer Glaswerk Schott & Gen Glass resistant to metal vapors.
US2103052A (en) * 1934-06-18 1937-12-21 Gen Electric Gaseous electric discharge lamp device
FR816541A (en) * 1936-03-05 1937-08-10 Osa Participations Ind Luminescent electric tube
US2177895A (en) * 1936-05-05 1939-10-31 Ets Claude Paz & Silva Electric gaseous discharge device
US2152999A (en) * 1937-02-17 1939-04-04 Gen Electric Gaseous electric discharge lamp device
US2135284A (en) * 1938-02-26 1938-11-01 Gen Electric Cathodic lamp
BE513407A (en) * 1951-08-15

Also Published As

Publication number Publication date
NL105207C (en) 1963-02-15
BE544641A (en)
ES226221A1 (en) 1956-06-01
DE1040685B (en) 1958-10-09
CH336502A (en) 1959-02-28
FR1140325A (en) 1957-07-19
US2899584A (en) 1959-08-11

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