GB387653A - Improvements in or relating to lighting fittings - Google Patents

Improvements in or relating to lighting fittings

Info

Publication number
GB387653A
GB387653A GB1302731A GB1302731A GB387653A GB 387653 A GB387653 A GB 387653A GB 1302731 A GB1302731 A GB 1302731A GB 1302731 A GB1302731 A GB 1302731A GB 387653 A GB387653 A GB 387653A
Authority
GB
United Kingdom
Prior art keywords
casing
electric
relating
milling
lighting fittings
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
GB1302731A
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB387653A publication Critical patent/GB387653A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01R33/22—Two-pole devices for screw type base, e.g. for lamp

Abstract

387,653. Electric-lamp holders. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. May 2, 1931, No. 13027. Convention date, May 17, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (ii).] An electric - lamp holder of the Edison type comprises a casing 2, Figs. 1 and 2, of insulating material with internal screw threads which have portions 5 removed, for example by milling, to provide a seating for a metal contact plate 1 which is preferably resilient and fills substantially the space formed by the milling operation. Two contact plates connected by an upper crosspiece may be provided on opposite sides of the inner wall of the casing 2.
GB1302731A 1930-05-17 1931-05-02 Improvements in or relating to lighting fittings Expired GB387653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL716157X 1930-05-17

Publications (1)

Publication Number Publication Date
GB387653A true GB387653A (en) 1933-02-09

Family

ID=1544659

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1302831A Expired GB371173A (en) 1930-05-17 1931-05-02 Improvements in or relating to electric lamp holders
GB1302731A Expired GB387653A (en) 1930-05-17 1931-05-02 Improvements in or relating to lighting fittings

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1302831A Expired GB371173A (en) 1930-05-17 1931-05-02 Improvements in or relating to electric lamp holders

Country Status (3)

Country Link
AT (1) AT127917B (en)
FR (1) FR716157A (en)
GB (2) GB371173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868773C (en) * 1941-01-14 1953-02-26 Vossloh Werke Gmbh Two-part incandescent lamp holder made of molded insulating material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868773C (en) * 1941-01-14 1953-02-26 Vossloh Werke Gmbh Two-part incandescent lamp holder made of molded insulating material

Also Published As

Publication number Publication date
AT127917B (en) 1932-04-25
FR716157A (en) 1931-12-16
GB371173A (en) 1932-04-21

Similar Documents

Publication Publication Date Title
GB387653A (en) Improvements in or relating to lighting fittings
GB415358A (en) Improvements in electric discharge tubes with positive column discharge
GB498577A (en) Improved circuit arrangement comprising a discharge tube
GB401923A (en) Improvements in caps and holders for electric discharge tubes and incandescent lamps
GB552612A (en) Improvements in or relating to cathode-ray tubes
GB547646A (en) Improvements in or relating to gas filled electric discharge tubes
GB481265A (en) Improvements in or relating to metal-vapour discharge tubes
GB492025A (en) Improved method of manufacturing secondary-emission electrodes
GB544641A (en) Improvements in or relating to circuits for amplifying high-frequency oscillations
GB551014A (en) Improvements in or relating to cathode-ray tubes, more particularly iconoscopes and circuit arrangements therefor
GB482704A (en) Improvements in or relating to cathode-ray tubes
USD124298S (en) Design for a ptol switch
GB543568A (en) Improvements in or relating to ceramic insulators
GB552700A (en) Improvements in or relating to arrangements for amplifying or generating electrical oscillations of very high frequency
GB511415A (en) Improvements in or relating to adjustable electric condensers
GB400835A (en) Improvements in or relating to electric discharge tubes for the emission of light
GB386538A (en) Improvements in or relating to lighting fittings
GB377656A (en) Improvements in or relating to electric connecting plugs
GB546048A (en) Improved method of introducing barium into a closed space
GB568133A (en) Improvements in and relating to bases for electric lamps and similar devices
GB342220A (en) Improvements relating to thermionic valves or electron discharge tubes and holders therefor
GB544330A (en) Improvements in and relating to insulated electric conductors
GB545106A (en) Improvements in or relating to cinematograph projection apparatus
GB390138A (en) Improvements in or relating to contact plugs
GB460832A (en) Improvements in and relating to electric sockets