GB527914A - Improvements relating to bases for electric lamps - Google Patents

Improvements relating to bases for electric lamps

Info

Publication number
GB527914A
GB527914A GB8446/39A GB844639A GB527914A GB 527914 A GB527914 A GB 527914A GB 8446/39 A GB8446/39 A GB 8446/39A GB 844639 A GB844639 A GB 844639A GB 527914 A GB527914 A GB 527914A
Authority
GB
United Kingdom
Prior art keywords
projection
attached
strips
march
cap
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
GB8446/39A
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
Publication of GB527914A publication Critical patent/GB527914A/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
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/56—Shape of the separate part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • H01R33/0881—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp composed of different pieces

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

527,914. Lamp caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd. March 16, 1939, No. 8446. Convention date, March 17, 1938. [Class 38 (i)] A cap for a tubular discharge lamp comprises a cup-shaped member 17 having a projection 21 attached to its cylindrical wall and a pair of contact strips 25, 26 that are attached to opposite sides of the projection 21 and extend across the interior of the member 17. Each strip 25, 26 is attached to a leading-in wire 12, 13 of the lamp and a removable disc 31 may be provided in the end wall of the member 17 to give access to the points of attachment. The projection 21 is rounded and the strips 25, 26 conform thereto and may have their ends turned inwardly and embedded in the projection. The holder 33 contains resilient contact strips 35 bent at 46 to embrace and hold the projection 21. The strips 35 lie in grooves 41 in the insulating base 34 and have turned-up ends 43 to which leads 47, 48 are attached by soldering or by screws 49. The base 34 has a concave surface 38 to fit the cap 17 or a boss 30 thereon.
GB8446/39A 1938-03-17 1939-03-16 Improvements relating to bases for electric lamps Expired GB527914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US196458A US2160786A (en) 1938-03-17 1938-03-17 Tubular lamp base

Publications (1)

Publication Number Publication Date
GB527914A true GB527914A (en) 1940-10-18

Family

ID=22725499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8446/39A Expired GB527914A (en) 1938-03-17 1939-03-16 Improvements relating to bases for electric lamps

Country Status (3)

Country Link
US (1) US2160786A (en)
GB (1) GB527914A (en)
NL (1) NL53084C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507898A (en) * 1943-10-01 1950-05-16 Edwin G Gaynor Fluorescent lighting
US2511155A (en) * 1946-03-14 1950-06-13 Edwin G Gaynor Fluorescent lighting
US2794906A (en) * 1954-06-16 1957-06-04 Harold E Edgerton Gaseous-discharge apparatus
US2972699A (en) * 1958-02-12 1961-02-21 Westinghouse Electric Corp Electric lamp and socket
US3118717A (en) * 1960-04-11 1964-01-21 Horan John Joseph Elastic lamps, constructions, mountings and receptacles
US3349233A (en) * 1966-01-31 1967-10-24 Structural Electric Products C Inset paving light
NL7003970A (en) * 1970-03-20 1971-09-22
US4092562A (en) * 1975-07-28 1978-05-30 General Electric Company Fluorescent lamp unit for multiple installation
US4061940A (en) * 1976-03-31 1977-12-06 Wagner Electric Corporation Baseless cartridge lamp and socket therefor
US20090196029A1 (en) * 2008-02-05 2009-08-06 Richard Kurtz Discharge lamp and fixture therefor
US20100296005A1 (en) * 2008-02-19 2010-11-25 Sharp Kabushiki Kaisha Discharge tube, lighting device, display device, and television receiver
US9228727B2 (en) 2012-04-05 2016-01-05 Michael W. May Lighting assembly
WO2015161217A1 (en) 2014-04-18 2015-10-22 May Michael W Lighting assembly

Also Published As

Publication number Publication date
NL53084C (en)
US2160786A (en) 1939-05-30

Similar Documents

Publication Publication Date Title
GB527914A (en) Improvements relating to bases for electric lamps
GB1291319A (en) Holder for capless electric lamps
GB517185A (en) Improvements in or relating to electric lamps
US2216223A (en) Electric incandescent lamp
US2093806A (en) Signal lamp unit
SU9300A1 (en) Multi-filament lamp holder
GB529978A (en) Improvements in and relating to electric lampholders and like electrical connections
SE386018B (en) LAMP SOCKET
GB397208A (en) Improvements in electric incandescent lamp holders
GB532590A (en) Improvements in and relating to caps and holders for electric lamps
GB264913A (en) Electric lamp holder and connections therefor
GB1416001A (en) Sockets for electric light bulbs
USD124076S (en) Lamp head for fluorescent lamps
GB466943A (en) Improvements relating to lamp sockets
GB533118A (en) Improvements in and relating to caps for electric discharge lamps
GB472753A (en) Improvements in or relating to caps for electric incandescent lamps or the like
GB1233592A (en)
GB318690A (en) Improved holder for incandescent strip electric lights
GB291401A (en) Improvements in incandescent electric lamps for projection apparatus
GB178661A (en) Improvements in electric lamp holders
GB191670A (en) Improvements in or relating to holders for electric lamps
GB305581A (en) Contact-preventing devices for electric incandescent lamps
GB429033A (en) Improvements in and relating to electric incandescent filament lamps of tubular form
GB547092A (en) Improvements in or relating to discharge lamps
GB486737A (en) Improvements in indirect lighting devices