GB354271A - Improvements in the manufacture of electric incandescent lamps - Google Patents

Improvements in the manufacture of electric incandescent lamps

Info

Publication number
GB354271A
GB354271A GB2973/30A GB297330A GB354271A GB 354271 A GB354271 A GB 354271A GB 2973/30 A GB2973/30 A GB 2973/30A GB 297330 A GB297330 A GB 297330A GB 354271 A GB354271 A GB 354271A
Authority
GB
United Kingdom
Prior art keywords
bulb
wires
leading
insulating material
incandescent lamp
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
GB2973/30A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB354271A publication Critical patent/GB354271A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/30—Manufacture of bases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

354,271. Electric incandescent lamp caps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Jan. 28, 1930, No. 2973. Convention date, May 24, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (ii).] Caps of insulating material are .applied to incandescent lamp bulbs by mounting the base 4 of the bulb 1, together with the sealed-up end of the exhaust tube 5 and the leading-in wires 6, 7 within a two-part mould 12, 13 provided with a lateral orifice 15 through which the insulating material is forced, either in the molten or plastic conditior which solidifies on cooling, or as a powder which is transformed into a solid condition by heating or sintering. Preferably the contact members 9, 11 are secured to the leading-in wires 6, 7 respectively before the bulb is mounted in the mould.
GB2973/30A 1929-05-24 1930-01-28 Improvements in the manufacture of electric incandescent lamps Expired GB354271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE354271X 1929-05-24

Publications (1)

Publication Number Publication Date
GB354271A true GB354271A (en) 1931-08-04

Family

ID=6287485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2973/30A Expired GB354271A (en) 1929-05-24 1930-01-28 Improvements in the manufacture of electric incandescent lamps

Country Status (1)

Country Link
GB (1) GB354271A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258979B (en) * 1960-05-02 1968-01-18 Philips Nv With a central contact piece and an electrical lamp that is structurally separated from this strip-shaped side contact piece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258979B (en) * 1960-05-02 1968-01-18 Philips Nv With a central contact piece and an electrical lamp that is structurally separated from this strip-shaped side contact piece

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